./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic.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_c1d7c157-46d9-4f8a-bc00-48861b80a313/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d7c157-46d9-4f8a-bc00-48861b80a313/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_c1d7c157-46d9-4f8a-bc00-48861b80a313/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d7c157-46d9-4f8a-bc00-48861b80a313/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d7c157-46d9-4f8a-bc00-48861b80a313/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_c1d7c157-46d9-4f8a-bc00-48861b80a313/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 e281184c6e6629633efbcea3a2283a3a54dcfd040e15fa389b71c86937ccbf2b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:06:50,251 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:06:50,371 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d7c157-46d9-4f8a-bc00-48861b80a313/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-28 02:06:50,382 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:06:50,383 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:06:50,422 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:06:50,423 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:06:50,423 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:06:50,424 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:06:50,424 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:06:50,425 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:06:50,425 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:06:50,425 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:06:50,425 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:06:50,425 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:06:50,425 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:06:50,425 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:06:50,426 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:06:50,426 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:06:50,426 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:06:50,426 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:06:50,426 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:06:50,428 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-28 02:06:50,429 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 02:06:50,429 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:06:50,429 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:06:50,429 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:06:50,429 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:06:50,430 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:06:50,430 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:06:50,430 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:06:50,430 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:06:50,430 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:06:50,430 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:06:50,430 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:06:50,430 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:06:50,431 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:06:50,431 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:06:50,431 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:06:50,431 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:06:50,431 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:06:50,431 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:06:50,431 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:06:50,431 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:06:50,431 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:06:50,431 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:06:50,431 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_c1d7c157-46d9-4f8a-bc00-48861b80a313/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 -> e281184c6e6629633efbcea3a2283a3a54dcfd040e15fa389b71c86937ccbf2b [2024-11-28 02:06:50,753 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:06:50,768 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:06:50,771 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:06:50,773 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:06:50,773 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:06:50,776 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d7c157-46d9-4f8a-bc00-48861b80a313/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic.i [2024-11-28 02:06:53,798 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d7c157-46d9-4f8a-bc00-48861b80a313/bin/uautomizer-verify-aQ6SnzHsRB/data/d9262a3e2/f10aa53ffde54b7793afeb514f930858/FLAGd8f9aad9f [2024-11-28 02:06:54,167 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:06:54,171 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d7c157-46d9-4f8a-bc00-48861b80a313/sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic.i [2024-11-28 02:06:54,193 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d7c157-46d9-4f8a-bc00-48861b80a313/bin/uautomizer-verify-aQ6SnzHsRB/data/d9262a3e2/f10aa53ffde54b7793afeb514f930858/FLAGd8f9aad9f [2024-11-28 02:06:54,216 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d7c157-46d9-4f8a-bc00-48861b80a313/bin/uautomizer-verify-aQ6SnzHsRB/data/d9262a3e2/f10aa53ffde54b7793afeb514f930858 [2024-11-28 02:06:54,220 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:06:54,222 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:06:54,223 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:06:54,224 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:06:54,230 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:06:54,231 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:06:54" (1/1) ... [2024-11-28 02:06:54,232 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24b6c51e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:54, skipping insertion in model container [2024-11-28 02:06:54,232 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:06:54" (1/1) ... [2024-11-28 02:06:54,289 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:06:54,822 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:06:54,837 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:06:54,935 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:06:55,009 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:06:55,010 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:55 WrapperNode [2024-11-28 02:06:55,010 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:06:55,011 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:06:55,012 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:06:55,012 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:06:55,021 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:55" (1/1) ... [2024-11-28 02:06:55,045 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:55" (1/1) ... [2024-11-28 02:06:55,076 INFO L138 Inliner]: procedures = 265, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 65 [2024-11-28 02:06:55,079 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:06:55,081 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:06:55,081 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:06:55,082 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:06:55,089 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:55" (1/1) ... [2024-11-28 02:06:55,090 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:55" (1/1) ... [2024-11-28 02:06:55,097 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:55" (1/1) ... [2024-11-28 02:06:55,097 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:55" (1/1) ... [2024-11-28 02:06:55,112 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:55" (1/1) ... [2024-11-28 02:06:55,113 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:55" (1/1) ... [2024-11-28 02:06:55,119 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:55" (1/1) ... [2024-11-28 02:06:55,124 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:55" (1/1) ... [2024-11-28 02:06:55,125 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:55" (1/1) ... [2024-11-28 02:06:55,132 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:06:55,133 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:06:55,133 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:06:55,133 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:06:55,134 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:55" (1/1) ... [2024-11-28 02:06:55,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:06:55,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d7c157-46d9-4f8a-bc00-48861b80a313/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:06:55,182 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d7c157-46d9-4f8a-bc00-48861b80a313/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:06:55,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1d7c157-46d9-4f8a-bc00-48861b80a313/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:06:55,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 02:06:55,219 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-28 02:06:55,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-28 02:06:55,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-28 02:06:55,220 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-28 02:06:55,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 02:06:55,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:06:55,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-28 02:06:55,220 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-11-28 02:06:55,220 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-11-28 02:06:55,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:06:55,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:06:55,223 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 02:06:55,413 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:06:55,415 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:06:55,674 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 02:06:55,674 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:06:55,714 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:06:55,714 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 02:06:55,715 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:06:55 BoogieIcfgContainer [2024-11-28 02:06:55,715 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:06:55,721 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:06:55,721 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:06:55,728 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:06:55,729 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:06:54" (1/3) ... [2024-11-28 02:06:55,730 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65f94b19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:06:55, skipping insertion in model container [2024-11-28 02:06:55,731 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:55" (2/3) ... [2024-11-28 02:06:55,731 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65f94b19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:06:55, skipping insertion in model container [2024-11-28 02:06:55,732 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:06:55" (3/3) ... [2024-11-28 02:06:55,734 INFO L128 eAbstractionObserver]: Analyzing ICFG thread-join-array-dynamic.i [2024-11-28 02:06:55,749 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:06:55,750 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG thread-join-array-dynamic.i that has 2 procedures, 87 locations, 1 initial locations, 2 loop locations, and 4 error locations. [2024-11-28 02:06:55,751 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 02:06:55,824 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-28 02:06:55,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 90 places, 91 transitions, 189 flow [2024-11-28 02:06:55,967 INFO L124 PetriNetUnfolderBase]: 6/125 cut-off events. [2024-11-28 02:06:55,970 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 02:06:55,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 125 events. 6/125 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 209 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 62. Up to 4 conditions per place. [2024-11-28 02:06:55,979 INFO L82 GeneralOperation]: Start removeDead. Operand has 90 places, 91 transitions, 189 flow [2024-11-28 02:06:55,984 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 91 transitions, 189 flow [2024-11-28 02:06:55,998 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:06:56,012 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;@5e6eb36f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:06:56,012 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-28 02:06:56,040 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 02:06:56,041 INFO L124 PetriNetUnfolderBase]: 3/48 cut-off events. [2024-11-28 02:06:56,041 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 02:06:56,041 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:06:56,044 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] [2024-11-28 02:06:56,045 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-28 02:06:56,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:06:56,052 INFO L85 PathProgramCache]: Analyzing trace with hash -869612836, now seen corresponding path program 1 times [2024-11-28 02:06:56,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:06:56,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755824454] [2024-11-28 02:06:56,063 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:06:56,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:06:56,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:06:56,385 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 02:06:56,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:06:56,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755824454] [2024-11-28 02:06:56,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755824454] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:06:56,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:06:56,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:06:56,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065918929] [2024-11-28 02:06:56,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:06:56,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:06:56,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:06:56,429 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:06:56,429 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:06:56,449 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 91 [2024-11-28 02:06:56,453 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 91 transitions, 189 flow. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 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 02:06:56,454 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:06:56,455 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 91 [2024-11-28 02:06:56,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:06:56,551 INFO L124 PetriNetUnfolderBase]: 8/163 cut-off events. [2024-11-28 02:06:56,551 INFO L125 PetriNetUnfolderBase]: For 7/10 co-relation queries the response was YES. [2024-11-28 02:06:56,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 163 events. 8/163 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 416 event pairs, 1 based on Foata normal form. 8/154 useless extension candidates. Maximal degree in co-relation 122. Up to 16 conditions per place. [2024-11-28 02:06:56,553 INFO L140 encePairwiseOnDemand]: 84/91 looper letters, 8 selfloop transitions, 3 changer transitions 2/92 dead transitions. [2024-11-28 02:06:56,554 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 92 transitions, 215 flow [2024-11-28 02:06:56,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:06:56,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:06:56,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 256 transitions. [2024-11-28 02:06:56,568 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9377289377289377 [2024-11-28 02:06:56,569 INFO L175 Difference]: Start difference. First operand has 90 places, 91 transitions, 189 flow. Second operand 3 states and 256 transitions. [2024-11-28 02:06:56,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 92 transitions, 215 flow [2024-11-28 02:06:56,576 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 92 transitions, 215 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 02:06:56,582 INFO L231 Difference]: Finished difference. Result has 94 places, 89 transitions, 203 flow [2024-11-28 02:06:56,584 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=183, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=203, PETRI_PLACES=94, PETRI_TRANSITIONS=89} [2024-11-28 02:06:56,588 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 4 predicate places. [2024-11-28 02:06:56,588 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 89 transitions, 203 flow [2024-11-28 02:06:56,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 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 02:06:56,589 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:06:56,589 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] [2024-11-28 02:06:56,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 02:06:56,589 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-28 02:06:56,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:06:56,590 INFO L85 PathProgramCache]: Analyzing trace with hash -645974398, now seen corresponding path program 1 times [2024-11-28 02:06:56,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:06:56,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519086968] [2024-11-28 02:06:56,590 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:06:56,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:06:56,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:06:56,877 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 02:06:56,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:06:56,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519086968] [2024-11-28 02:06:56,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519086968] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:06:56,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:06:56,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:06:56,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625366363] [2024-11-28 02:06:56,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:06:56,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:06:56,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:06:56,881 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:06:56,882 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:06:57,064 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 91 [2024-11-28 02:06:57,065 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 89 transitions, 203 flow. Second operand has 5 states, 5 states have (on average 74.4) internal successors, (372), 5 states have internal predecessors, (372), 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 02:06:57,065 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:06:57,065 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 91 [2024-11-28 02:06:57,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:06:57,251 INFO L124 PetriNetUnfolderBase]: 17/236 cut-off events. [2024-11-28 02:06:57,251 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-28 02:06:57,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 326 conditions, 236 events. 17/236 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 838 event pairs, 1 based on Foata normal form. 1/220 useless extension candidates. Maximal degree in co-relation 224. Up to 49 conditions per place. [2024-11-28 02:06:57,253 INFO L140 encePairwiseOnDemand]: 83/91 looper letters, 15 selfloop transitions, 2 changer transitions 5/96 dead transitions. [2024-11-28 02:06:57,254 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 96 transitions, 261 flow [2024-11-28 02:06:57,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:06:57,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 02:06:57,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 461 transitions. [2024-11-28 02:06:57,261 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8443223443223443 [2024-11-28 02:06:57,261 INFO L175 Difference]: Start difference. First operand has 94 places, 89 transitions, 203 flow. Second operand 6 states and 461 transitions. [2024-11-28 02:06:57,262 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 96 transitions, 261 flow [2024-11-28 02:06:57,263 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 96 transitions, 255 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 02:06:57,267 INFO L231 Difference]: Finished difference. Result has 100 places, 89 transitions, 215 flow [2024-11-28 02:06:57,268 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=197, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=215, PETRI_PLACES=100, PETRI_TRANSITIONS=89} [2024-11-28 02:06:57,268 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 10 predicate places. [2024-11-28 02:06:57,268 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 89 transitions, 215 flow [2024-11-28 02:06:57,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 74.4) internal successors, (372), 5 states have internal predecessors, (372), 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 02:06:57,269 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:06:57,269 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] [2024-11-28 02:06:57,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:06:57,270 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-28 02:06:57,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:06:57,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1615551647, now seen corresponding path program 1 times [2024-11-28 02:06:57,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:06:57,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954723564] [2024-11-28 02:06:57,271 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:06:57,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:06:57,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:06:57,947 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 02:06:57,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:06:57,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954723564] [2024-11-28 02:06:57,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954723564] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:06:57,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:06:57,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:06:57,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48459663] [2024-11-28 02:06:57,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:06:57,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:06:57,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:06:57,952 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:06:57,952 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:06:58,148 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 91 [2024-11-28 02:06:58,149 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 89 transitions, 215 flow. Second operand has 6 states, 6 states have (on average 67.5) internal successors, (405), 6 states have internal predecessors, (405), 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 02:06:58,150 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:06:58,150 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 91 [2024-11-28 02:06:58,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:06:58,273 INFO L124 PetriNetUnfolderBase]: 30/241 cut-off events. [2024-11-28 02:06:58,273 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-11-28 02:06:58,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 391 conditions, 241 events. 30/241 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1016 event pairs, 5 based on Foata normal form. 0/229 useless extension candidates. Maximal degree in co-relation 295. Up to 61 conditions per place. [2024-11-28 02:06:58,277 INFO L140 encePairwiseOnDemand]: 85/91 looper letters, 24 selfloop transitions, 5 changer transitions 0/96 dead transitions. [2024-11-28 02:06:58,277 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 96 transitions, 287 flow [2024-11-28 02:06:58,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:06:58,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 02:06:58,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 426 transitions. [2024-11-28 02:06:58,281 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7802197802197802 [2024-11-28 02:06:58,282 INFO L175 Difference]: Start difference. First operand has 100 places, 89 transitions, 215 flow. Second operand 6 states and 426 transitions. [2024-11-28 02:06:58,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 96 transitions, 287 flow [2024-11-28 02:06:58,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 96 transitions, 273 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-11-28 02:06:58,287 INFO L231 Difference]: Finished difference. Result has 96 places, 88 transitions, 209 flow [2024-11-28 02:06:58,289 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=209, PETRI_PLACES=96, PETRI_TRANSITIONS=88} [2024-11-28 02:06:58,290 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 6 predicate places. [2024-11-28 02:06:58,290 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 88 transitions, 209 flow [2024-11-28 02:06:58,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 67.5) internal successors, (405), 6 states have internal predecessors, (405), 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 02:06:58,291 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:06:58,291 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] [2024-11-28 02:06:58,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:06:58,291 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-28 02:06:58,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:06:58,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1846658227, now seen corresponding path program 1 times [2024-11-28 02:06:58,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:06:58,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583062485] [2024-11-28 02:06:58,292 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:06:58,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:06:58,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:06:58,377 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 02:06:58,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:06:58,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583062485] [2024-11-28 02:06:58,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583062485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:06:58,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:06:58,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:06:58,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811629418] [2024-11-28 02:06:58,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:06:58,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:06:58,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:06:58,380 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:06:58,381 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:06:58,402 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 91 [2024-11-28 02:06:58,402 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 88 transitions, 209 flow. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 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 02:06:58,402 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:06:58,403 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 91 [2024-11-28 02:06:58,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:06:58,454 INFO L124 PetriNetUnfolderBase]: 5/169 cut-off events. [2024-11-28 02:06:58,454 INFO L125 PetriNetUnfolderBase]: For 18/31 co-relation queries the response was YES. [2024-11-28 02:06:58,455 INFO L83 FinitePrefix]: Finished finitePrefix Result has 238 conditions, 169 events. 5/169 cut-off events. For 18/31 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 474 event pairs, 3 based on Foata normal form. 1/158 useless extension candidates. Maximal degree in co-relation 175. Up to 25 conditions per place. [2024-11-28 02:06:58,455 INFO L140 encePairwiseOnDemand]: 86/91 looper letters, 8 selfloop transitions, 4 changer transitions 3/91 dead transitions. [2024-11-28 02:06:58,456 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 91 transitions, 245 flow [2024-11-28 02:06:58,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:06:58,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:06:58,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 248 transitions. [2024-11-28 02:06:58,457 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9084249084249084 [2024-11-28 02:06:58,457 INFO L175 Difference]: Start difference. First operand has 96 places, 88 transitions, 209 flow. Second operand 3 states and 248 transitions. [2024-11-28 02:06:58,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 91 transitions, 245 flow [2024-11-28 02:06:58,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 91 transitions, 235 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 02:06:58,461 INFO L231 Difference]: Finished difference. Result has 95 places, 88 transitions, 221 flow [2024-11-28 02:06:58,462 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=221, PETRI_PLACES=95, PETRI_TRANSITIONS=88} [2024-11-28 02:06:58,462 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 5 predicate places. [2024-11-28 02:06:58,463 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 88 transitions, 221 flow [2024-11-28 02:06:58,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 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 02:06:58,463 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:06:58,463 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] [2024-11-28 02:06:58,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 02:06:58,464 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-28 02:06:58,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:06:58,465 INFO L85 PathProgramCache]: Analyzing trace with hash 305603857, now seen corresponding path program 1 times [2024-11-28 02:06:58,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:06:58,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962988635] [2024-11-28 02:06:58,465 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:06:58,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:06:58,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:06:58,964 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 02:06:58,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:06:58,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962988635] [2024-11-28 02:06:58,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962988635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:06:58,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:06:58,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:06:58,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221460438] [2024-11-28 02:06:58,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:06:58,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:06:58,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:06:58,967 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:06:58,967 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:06:59,166 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 91 [2024-11-28 02:06:59,167 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 88 transitions, 221 flow. Second operand has 6 states, 6 states have (on average 70.16666666666667) internal successors, (421), 6 states have internal predecessors, (421), 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 02:06:59,170 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:06:59,171 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 91 [2024-11-28 02:06:59,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:06:59,278 INFO L124 PetriNetUnfolderBase]: 25/282 cut-off events. [2024-11-28 02:06:59,278 INFO L125 PetriNetUnfolderBase]: For 48/51 co-relation queries the response was YES. [2024-11-28 02:06:59,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 458 conditions, 282 events. 25/282 cut-off events. For 48/51 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1218 event pairs, 15 based on Foata normal form. 0/273 useless extension candidates. Maximal degree in co-relation 370. Up to 55 conditions per place. [2024-11-28 02:06:59,282 INFO L140 encePairwiseOnDemand]: 85/91 looper letters, 12 selfloop transitions, 0 changer transitions 20/95 dead transitions. [2024-11-28 02:06:59,283 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 95 transitions, 289 flow [2024-11-28 02:06:59,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:06:59,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 02:06:59,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 436 transitions. [2024-11-28 02:06:59,285 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7985347985347986 [2024-11-28 02:06:59,285 INFO L175 Difference]: Start difference. First operand has 95 places, 88 transitions, 221 flow. Second operand 6 states and 436 transitions. [2024-11-28 02:06:59,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 95 transitions, 289 flow [2024-11-28 02:06:59,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 95 transitions, 281 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 02:06:59,289 INFO L231 Difference]: Finished difference. Result has 97 places, 75 transitions, 184 flow [2024-11-28 02:06:59,289 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=184, PETRI_PLACES=97, PETRI_TRANSITIONS=75} [2024-11-28 02:06:59,290 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 7 predicate places. [2024-11-28 02:06:59,290 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 75 transitions, 184 flow [2024-11-28 02:06:59,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 70.16666666666667) internal successors, (421), 6 states have internal predecessors, (421), 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 02:06:59,291 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:06:59,291 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] [2024-11-28 02:06:59,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 02:06:59,292 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-28 02:06:59,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:06:59,293 INFO L85 PathProgramCache]: Analyzing trace with hash -2023351403, now seen corresponding path program 1 times [2024-11-28 02:06:59,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:06:59,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502816840] [2024-11-28 02:06:59,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:06:59,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:06:59,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:06:59,331 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:06:59,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:06:59,381 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 02:06:59,381 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 02:06:59,382 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2024-11-28 02:06:59,387 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (4 of 6 remaining) [2024-11-28 02:06:59,387 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (3 of 6 remaining) [2024-11-28 02:06:59,387 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (2 of 6 remaining) [2024-11-28 02:06:59,388 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 6 remaining) [2024-11-28 02:06:59,388 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 6 remaining) [2024-11-28 02:06:59,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 02:06:59,388 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-28 02:06:59,391 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 02:06:59,392 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-28 02:06:59,414 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-28 02:06:59,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 109 places, 109 transitions, 234 flow [2024-11-28 02:06:59,460 INFO L124 PetriNetUnfolderBase]: 11/212 cut-off events. [2024-11-28 02:06:59,460 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-28 02:06:59,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 224 conditions, 212 events. 11/212 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 445 event pairs, 0 based on Foata normal form. 0/184 useless extension candidates. Maximal degree in co-relation 127. Up to 8 conditions per place. [2024-11-28 02:06:59,461 INFO L82 GeneralOperation]: Start removeDead. Operand has 109 places, 109 transitions, 234 flow [2024-11-28 02:06:59,462 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 109 places, 109 transitions, 234 flow [2024-11-28 02:06:59,464 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:06:59,464 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;@5e6eb36f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:06:59,465 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-28 02:06:59,470 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 02:06:59,470 INFO L124 PetriNetUnfolderBase]: 3/48 cut-off events. [2024-11-28 02:06:59,470 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 02:06:59,471 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:06:59,471 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] [2024-11-28 02:06:59,471 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-28 02:06:59,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:06:59,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1247832700, now seen corresponding path program 1 times [2024-11-28 02:06:59,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:06:59,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909204089] [2024-11-28 02:06:59,472 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:06:59,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:06:59,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:06:59,509 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 02:06:59,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:06:59,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909204089] [2024-11-28 02:06:59,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909204089] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:06:59,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:06:59,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:06:59,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311084146] [2024-11-28 02:06:59,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:06:59,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:06:59,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:06:59,511 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:06:59,511 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:06:59,534 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 109 [2024-11-28 02:06:59,535 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 109 transitions, 234 flow. Second operand has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 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 02:06:59,535 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:06:59,535 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 109 [2024-11-28 02:06:59,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:06:59,746 INFO L124 PetriNetUnfolderBase]: 119/731 cut-off events. [2024-11-28 02:06:59,746 INFO L125 PetriNetUnfolderBase]: For 44/68 co-relation queries the response was YES. [2024-11-28 02:06:59,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1003 conditions, 731 events. 119/731 cut-off events. For 44/68 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 4317 event pairs, 50 based on Foata normal form. 36/682 useless extension candidates. Maximal degree in co-relation 749. Up to 139 conditions per place. [2024-11-28 02:06:59,753 INFO L140 encePairwiseOnDemand]: 101/109 looper letters, 16 selfloop transitions, 4 changer transitions 1/113 dead transitions. [2024-11-28 02:06:59,753 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 113 transitions, 282 flow [2024-11-28 02:06:59,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:06:59,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:06:59,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 303 transitions. [2024-11-28 02:06:59,755 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.926605504587156 [2024-11-28 02:06:59,755 INFO L175 Difference]: Start difference. First operand has 109 places, 109 transitions, 234 flow. Second operand 3 states and 303 transitions. [2024-11-28 02:06:59,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 113 transitions, 282 flow [2024-11-28 02:06:59,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 113 transitions, 282 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 02:06:59,760 INFO L231 Difference]: Finished difference. Result has 113 places, 108 transitions, 256 flow [2024-11-28 02:06:59,761 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=256, PETRI_PLACES=113, PETRI_TRANSITIONS=108} [2024-11-28 02:06:59,762 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, 4 predicate places. [2024-11-28 02:06:59,762 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 108 transitions, 256 flow [2024-11-28 02:06:59,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 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 02:06:59,762 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:06:59,763 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:06:59,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 02:06:59,763 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-28 02:06:59,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:06:59,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1595309118, now seen corresponding path program 1 times [2024-11-28 02:06:59,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:06:59,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020881871] [2024-11-28 02:06:59,764 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:06:59,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:06:59,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:06:59,864 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 02:06:59,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:06:59,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020881871] [2024-11-28 02:06:59,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020881871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:06:59,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:06:59,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:06:59,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640476241] [2024-11-28 02:06:59,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:06:59,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:06:59,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:06:59,866 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:06:59,866 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:06:59,988 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 109 [2024-11-28 02:06:59,989 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 108 transitions, 256 flow. Second operand has 5 states, 5 states have (on average 88.4) internal successors, (442), 5 states have internal predecessors, (442), 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 02:06:59,990 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:06:59,990 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 109 [2024-11-28 02:06:59,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:00,269 INFO L124 PetriNetUnfolderBase]: 189/1195 cut-off events. [2024-11-28 02:07:00,270 INFO L125 PetriNetUnfolderBase]: For 71/71 co-relation queries the response was YES. [2024-11-28 02:07:00,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1695 conditions, 1195 events. 189/1195 cut-off events. For 71/71 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 8520 event pairs, 131 based on Foata normal form. 1/1096 useless extension candidates. Maximal degree in co-relation 1094. Up to 314 conditions per place. [2024-11-28 02:07:00,282 INFO L140 encePairwiseOnDemand]: 101/109 looper letters, 20 selfloop transitions, 2 changer transitions 5/116 dead transitions. [2024-11-28 02:07:00,282 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 116 transitions, 326 flow [2024-11-28 02:07:00,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:07:00,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 02:07:00,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 550 transitions. [2024-11-28 02:07:00,287 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8409785932721713 [2024-11-28 02:07:00,287 INFO L175 Difference]: Start difference. First operand has 113 places, 108 transitions, 256 flow. Second operand 6 states and 550 transitions. [2024-11-28 02:07:00,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 116 transitions, 326 flow [2024-11-28 02:07:00,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 116 transitions, 318 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 02:07:00,293 INFO L231 Difference]: Finished difference. Result has 119 places, 109 transitions, 270 flow [2024-11-28 02:07:00,293 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=270, PETRI_PLACES=119, PETRI_TRANSITIONS=109} [2024-11-28 02:07:00,294 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, 10 predicate places. [2024-11-28 02:07:00,295 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 109 transitions, 270 flow [2024-11-28 02:07:00,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 88.4) internal successors, (442), 5 states have internal predecessors, (442), 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 02:07:00,296 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:00,296 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] [2024-11-28 02:07:00,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 02:07:00,296 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-28 02:07:00,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:00,297 INFO L85 PathProgramCache]: Analyzing trace with hash 666216927, now seen corresponding path program 1 times [2024-11-28 02:07:00,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:00,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741514082] [2024-11-28 02:07:00,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:00,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:00,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:00,678 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 02:07:00,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:00,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741514082] [2024-11-28 02:07:00,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741514082] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:00,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:00,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:07:00,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138178960] [2024-11-28 02:07:00,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:00,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:07:00,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:00,680 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:07:00,680 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:07:00,822 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 109 [2024-11-28 02:07:00,823 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 109 transitions, 270 flow. Second operand has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 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 02:07:00,823 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:00,823 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 109 [2024-11-28 02:07:00,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:01,145 INFO L124 PetriNetUnfolderBase]: 298/1282 cut-off events. [2024-11-28 02:07:01,145 INFO L125 PetriNetUnfolderBase]: For 97/97 co-relation queries the response was YES. [2024-11-28 02:07:01,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2084 conditions, 1282 events. 298/1282 cut-off events. For 97/97 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 9708 event pairs, 130 based on Foata normal form. 0/1183 useless extension candidates. Maximal degree in co-relation 959. Up to 371 conditions per place. [2024-11-28 02:07:01,159 INFO L140 encePairwiseOnDemand]: 103/109 looper letters, 37 selfloop transitions, 5 changer transitions 0/124 dead transitions. [2024-11-28 02:07:01,159 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 124 transitions, 384 flow [2024-11-28 02:07:01,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:07:01,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 02:07:01,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 522 transitions. [2024-11-28 02:07:01,162 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7981651376146789 [2024-11-28 02:07:01,162 INFO L175 Difference]: Start difference. First operand has 119 places, 109 transitions, 270 flow. Second operand 6 states and 522 transitions. [2024-11-28 02:07:01,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 124 transitions, 384 flow [2024-11-28 02:07:01,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 124 transitions, 372 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-28 02:07:01,169 INFO L231 Difference]: Finished difference. Result has 116 places, 108 transitions, 266 flow [2024-11-28 02:07:01,170 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=266, PETRI_PLACES=116, PETRI_TRANSITIONS=108} [2024-11-28 02:07:01,173 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, 7 predicate places. [2024-11-28 02:07:01,173 INFO L471 AbstractCegarLoop]: Abstraction has has 116 places, 108 transitions, 266 flow [2024-11-28 02:07:01,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 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 02:07:01,173 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:01,173 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] [2024-11-28 02:07:01,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 02:07:01,174 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-28 02:07:01,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:01,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1711720451, now seen corresponding path program 1 times [2024-11-28 02:07:01,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:01,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569561905] [2024-11-28 02:07:01,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:01,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:01,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:01,233 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 02:07:01,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:01,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569561905] [2024-11-28 02:07:01,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569561905] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:01,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:01,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:07:01,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188329897] [2024-11-28 02:07:01,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:01,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:07:01,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:01,234 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:07:01,234 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:07:01,258 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 109 [2024-11-28 02:07:01,259 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 108 transitions, 266 flow. Second operand has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 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 02:07:01,259 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:01,259 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 109 [2024-11-28 02:07:01,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:01,490 INFO L124 PetriNetUnfolderBase]: 170/1036 cut-off events. [2024-11-28 02:07:01,490 INFO L125 PetriNetUnfolderBase]: For 196/323 co-relation queries the response was YES. [2024-11-28 02:07:01,492 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1612 conditions, 1036 events. 170/1036 cut-off events. For 196/323 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 7396 event pairs, 74 based on Foata normal form. 4/903 useless extension candidates. Maximal degree in co-relation 670. Up to 268 conditions per place. [2024-11-28 02:07:01,496 INFO L140 encePairwiseOnDemand]: 103/109 looper letters, 19 selfloop transitions, 7 changer transitions 0/117 dead transitions. [2024-11-28 02:07:01,496 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 117 transitions, 350 flow [2024-11-28 02:07:01,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:07:01,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:07:01,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 297 transitions. [2024-11-28 02:07:01,498 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.908256880733945 [2024-11-28 02:07:01,498 INFO L175 Difference]: Start difference. First operand has 116 places, 108 transitions, 266 flow. Second operand 3 states and 297 transitions. [2024-11-28 02:07:01,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 117 transitions, 350 flow [2024-11-28 02:07:01,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 117 transitions, 340 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 02:07:01,502 INFO L231 Difference]: Finished difference. Result has 115 places, 113 transitions, 312 flow [2024-11-28 02:07:01,503 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=312, PETRI_PLACES=115, PETRI_TRANSITIONS=113} [2024-11-28 02:07:01,504 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, 6 predicate places. [2024-11-28 02:07:01,504 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 113 transitions, 312 flow [2024-11-28 02:07:01,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 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 02:07:01,504 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:01,504 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] [2024-11-28 02:07:01,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 02:07:01,505 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-28 02:07:01,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:01,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1933479090, now seen corresponding path program 1 times [2024-11-28 02:07:01,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:01,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700983793] [2024-11-28 02:07:01,506 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:01,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:01,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:01,942 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 02:07:01,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:01,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700983793] [2024-11-28 02:07:01,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700983793] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:01,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:01,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:07:01,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001786587] [2024-11-28 02:07:01,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:01,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:07:01,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:01,944 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:07:01,944 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:07:02,092 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 109 [2024-11-28 02:07:02,093 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 113 transitions, 312 flow. Second operand has 6 states, 6 states have (on average 84.16666666666667) internal successors, (505), 6 states have internal predecessors, (505), 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 02:07:02,093 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:02,093 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 109 [2024-11-28 02:07:02,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:02,399 INFO L124 PetriNetUnfolderBase]: 358/1837 cut-off events. [2024-11-28 02:07:02,399 INFO L125 PetriNetUnfolderBase]: For 312/360 co-relation queries the response was YES. [2024-11-28 02:07:02,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3016 conditions, 1837 events. 358/1837 cut-off events. For 312/360 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 15444 event pairs, 179 based on Foata normal form. 4/1681 useless extension candidates. Maximal degree in co-relation 2430. Up to 362 conditions per place. [2024-11-28 02:07:02,411 INFO L140 encePairwiseOnDemand]: 103/109 looper letters, 34 selfloop transitions, 5 changer transitions 0/128 dead transitions. [2024-11-28 02:07:02,411 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 128 transitions, 420 flow [2024-11-28 02:07:02,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:07:02,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 02:07:02,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 532 transitions. [2024-11-28 02:07:02,413 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8134556574923547 [2024-11-28 02:07:02,413 INFO L175 Difference]: Start difference. First operand has 115 places, 113 transitions, 312 flow. Second operand 6 states and 532 transitions. [2024-11-28 02:07:02,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 128 transitions, 420 flow [2024-11-28 02:07:02,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 128 transitions, 406 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 02:07:02,417 INFO L231 Difference]: Finished difference. Result has 117 places, 112 transitions, 306 flow [2024-11-28 02:07:02,418 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=306, PETRI_PLACES=117, PETRI_TRANSITIONS=112} [2024-11-28 02:07:02,418 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, 8 predicate places. [2024-11-28 02:07:02,418 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 112 transitions, 306 flow [2024-11-28 02:07:02,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 84.16666666666667) internal successors, (505), 6 states have internal predecessors, (505), 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 02:07:02,419 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:02,419 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] [2024-11-28 02:07:02,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 02:07:02,419 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-28 02:07:02,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:02,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1174581145, now seen corresponding path program 1 times [2024-11-28 02:07:02,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:02,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955489937] [2024-11-28 02:07:02,420 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:02,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:02,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:02,562 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 02:07:02,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:02,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955489937] [2024-11-28 02:07:02,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955489937] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:02,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:02,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:07:02,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297847819] [2024-11-28 02:07:02,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:02,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:07:02,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:02,564 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:07:02,564 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:07:02,691 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 109 [2024-11-28 02:07:02,692 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 112 transitions, 306 flow. Second operand has 6 states, 6 states have (on average 88.16666666666667) internal successors, (529), 6 states have internal predecessors, (529), 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 02:07:02,692 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:02,692 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 109 [2024-11-28 02:07:02,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:02,912 INFO L124 PetriNetUnfolderBase]: 141/1023 cut-off events. [2024-11-28 02:07:02,912 INFO L125 PetriNetUnfolderBase]: For 138/165 co-relation queries the response was YES. [2024-11-28 02:07:02,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1605 conditions, 1023 events. 141/1023 cut-off events. For 138/165 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 7050 event pairs, 43 based on Foata normal form. 15/973 useless extension candidates. Maximal degree in co-relation 974. Up to 189 conditions per place. [2024-11-28 02:07:02,918 INFO L140 encePairwiseOnDemand]: 102/109 looper letters, 23 selfloop transitions, 6 changer transitions 6/125 dead transitions. [2024-11-28 02:07:02,918 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 125 transitions, 406 flow [2024-11-28 02:07:02,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:07:02,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 02:07:02,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 552 transitions. [2024-11-28 02:07:02,921 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8440366972477065 [2024-11-28 02:07:02,921 INFO L175 Difference]: Start difference. First operand has 117 places, 112 transitions, 306 flow. Second operand 6 states and 552 transitions. [2024-11-28 02:07:02,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 125 transitions, 406 flow [2024-11-28 02:07:02,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 125 transitions, 394 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 02:07:02,925 INFO L231 Difference]: Finished difference. Result has 119 places, 112 transitions, 312 flow [2024-11-28 02:07:02,925 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=312, PETRI_PLACES=119, PETRI_TRANSITIONS=112} [2024-11-28 02:07:02,926 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, 10 predicate places. [2024-11-28 02:07:02,926 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 112 transitions, 312 flow [2024-11-28 02:07:02,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 88.16666666666667) internal successors, (529), 6 states have internal predecessors, (529), 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 02:07:02,926 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:02,927 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] [2024-11-28 02:07:02,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 02:07:02,927 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-28 02:07:02,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:02,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1035001410, now seen corresponding path program 1 times [2024-11-28 02:07:02,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:02,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804630769] [2024-11-28 02:07:02,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:02,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:02,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:02,980 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 02:07:02,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:02,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804630769] [2024-11-28 02:07:02,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804630769] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:02,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:02,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:07:02,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737395318] [2024-11-28 02:07:02,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:02,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:07:02,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:02,983 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:07:02,983 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:07:03,007 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 109 [2024-11-28 02:07:03,007 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 112 transitions, 312 flow. Second operand has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 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 02:07:03,007 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:03,008 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 109 [2024-11-28 02:07:03,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:03,121 INFO L124 PetriNetUnfolderBase]: 56/628 cut-off events. [2024-11-28 02:07:03,121 INFO L125 PetriNetUnfolderBase]: For 215/280 co-relation queries the response was YES. [2024-11-28 02:07:03,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1011 conditions, 628 events. 56/628 cut-off events. For 215/280 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 3808 event pairs, 30 based on Foata normal form. 3/608 useless extension candidates. Maximal degree in co-relation 892. Up to 119 conditions per place. [2024-11-28 02:07:03,125 INFO L140 encePairwiseOnDemand]: 103/109 looper letters, 19 selfloop transitions, 7 changer transitions 1/119 dead transitions. [2024-11-28 02:07:03,125 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 119 transitions, 389 flow [2024-11-28 02:07:03,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:07:03,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:07:03,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 296 transitions. [2024-11-28 02:07:03,127 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9051987767584098 [2024-11-28 02:07:03,127 INFO L175 Difference]: Start difference. First operand has 119 places, 112 transitions, 312 flow. Second operand 3 states and 296 transitions. [2024-11-28 02:07:03,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 119 transitions, 389 flow [2024-11-28 02:07:03,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 119 transitions, 381 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 02:07:03,130 INFO L231 Difference]: Finished difference. Result has 120 places, 115 transitions, 354 flow [2024-11-28 02:07:03,131 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=354, PETRI_PLACES=120, PETRI_TRANSITIONS=115} [2024-11-28 02:07:03,132 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, 11 predicate places. [2024-11-28 02:07:03,132 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 115 transitions, 354 flow [2024-11-28 02:07:03,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 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 02:07:03,132 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:03,133 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-28 02:07:03,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 02:07:03,133 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-28 02:07:03,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:03,134 INFO L85 PathProgramCache]: Analyzing trace with hash -247522272, now seen corresponding path program 1 times [2024-11-28 02:07:03,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:03,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345690097] [2024-11-28 02:07:03,134 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:03,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:03,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:07:03,173 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:07:03,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:07:03,203 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 02:07:03,203 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 02:07:03,203 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2024-11-28 02:07:03,203 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2024-11-28 02:07:03,203 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 7 remaining) [2024-11-28 02:07:03,203 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2024-11-28 02:07:03,203 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2024-11-28 02:07:03,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2024-11-28 02:07:03,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2024-11-28 02:07:03,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 02:07:03,204 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:03,204 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 02:07:03,204 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-28 02:07:03,227 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-28 02:07:03,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 128 places, 127 transitions, 281 flow [2024-11-28 02:07:03,277 INFO L124 PetriNetUnfolderBase]: 21/350 cut-off events. [2024-11-28 02:07:03,277 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-28 02:07:03,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 375 conditions, 350 events. 21/350 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 953 event pairs, 1 based on Foata normal form. 0/302 useless extension candidates. Maximal degree in co-relation 220. Up to 16 conditions per place. [2024-11-28 02:07:03,278 INFO L82 GeneralOperation]: Start removeDead. Operand has 128 places, 127 transitions, 281 flow [2024-11-28 02:07:03,281 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 128 places, 127 transitions, 281 flow [2024-11-28 02:07:03,282 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:07:03,283 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;@5e6eb36f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:07:03,284 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-28 02:07:03,288 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 02:07:03,288 INFO L124 PetriNetUnfolderBase]: 3/48 cut-off events. [2024-11-28 02:07:03,288 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 02:07:03,288 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:03,288 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] [2024-11-28 02:07:03,288 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 02:07:03,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:03,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1823586396, now seen corresponding path program 1 times [2024-11-28 02:07:03,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:03,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353696706] [2024-11-28 02:07:03,289 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:03,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:03,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:03,321 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 02:07:03,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:03,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353696706] [2024-11-28 02:07:03,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353696706] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:03,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:03,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:07:03,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473870300] [2024-11-28 02:07:03,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:03,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:07:03,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:03,323 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:07:03,323 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:07:03,344 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 127 [2024-11-28 02:07:03,345 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 127 transitions, 281 flow. Second operand has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 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 02:07:03,345 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:03,345 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 127 [2024-11-28 02:07:03,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:03,972 INFO L124 PetriNetUnfolderBase]: 1071/4022 cut-off events. [2024-11-28 02:07:03,973 INFO L125 PetriNetUnfolderBase]: For 378/483 co-relation queries the response was YES. [2024-11-28 02:07:03,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5937 conditions, 4022 events. 1071/4022 cut-off events. For 378/483 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 36258 event pairs, 542 based on Foata normal form. 179/3760 useless extension candidates. Maximal degree in co-relation 4652. Up to 1110 conditions per place. [2024-11-28 02:07:04,005 INFO L140 encePairwiseOnDemand]: 118/127 looper letters, 23 selfloop transitions, 5 changer transitions 1/134 dead transitions. [2024-11-28 02:07:04,005 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 134 transitions, 351 flow [2024-11-28 02:07:04,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:07:04,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:07:04,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 350 transitions. [2024-11-28 02:07:04,007 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9186351706036745 [2024-11-28 02:07:04,007 INFO L175 Difference]: Start difference. First operand has 128 places, 127 transitions, 281 flow. Second operand 3 states and 350 transitions. [2024-11-28 02:07:04,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 134 transitions, 351 flow [2024-11-28 02:07:04,009 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 134 transitions, 351 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 02:07:04,011 INFO L231 Difference]: Finished difference. Result has 132 places, 127 transitions, 311 flow [2024-11-28 02:07:04,012 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=311, PETRI_PLACES=132, PETRI_TRANSITIONS=127} [2024-11-28 02:07:04,012 INFO L279 CegarLoopForPetriNet]: 128 programPoint places, 4 predicate places. [2024-11-28 02:07:04,013 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 127 transitions, 311 flow [2024-11-28 02:07:04,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 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 02:07:04,013 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:04,013 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] [2024-11-28 02:07:04,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 02:07:04,014 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 02:07:04,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:04,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1948182914, now seen corresponding path program 1 times [2024-11-28 02:07:04,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:04,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59721973] [2024-11-28 02:07:04,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:04,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:04,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:04,103 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 02:07:04,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:04,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59721973] [2024-11-28 02:07:04,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59721973] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:04,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:04,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:07:04,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612094866] [2024-11-28 02:07:04,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:04,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:07:04,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:04,104 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:07:04,104 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:07:04,213 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 127 [2024-11-28 02:07:04,214 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 127 transitions, 311 flow. Second operand has 5 states, 5 states have (on average 102.4) internal successors, (512), 5 states have internal predecessors, (512), 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 02:07:04,214 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:04,215 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 127 [2024-11-28 02:07:04,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:05,352 INFO L124 PetriNetUnfolderBase]: 1404/6338 cut-off events. [2024-11-28 02:07:05,352 INFO L125 PetriNetUnfolderBase]: For 436/444 co-relation queries the response was YES. [2024-11-28 02:07:05,385 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9236 conditions, 6338 events. 1404/6338 cut-off events. For 436/444 co-relation queries the response was YES. Maximal size of possible extension queue 201. Compared 64065 event pairs, 1086 based on Foata normal form. 1/5699 useless extension candidates. Maximal degree in co-relation 5660. Up to 1847 conditions per place. [2024-11-28 02:07:05,426 INFO L140 encePairwiseOnDemand]: 119/127 looper letters, 24 selfloop transitions, 2 changer transitions 5/135 dead transitions. [2024-11-28 02:07:05,427 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 135 transitions, 389 flow [2024-11-28 02:07:05,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:07:05,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 02:07:05,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 638 transitions. [2024-11-28 02:07:05,430 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8372703412073491 [2024-11-28 02:07:05,430 INFO L175 Difference]: Start difference. First operand has 132 places, 127 transitions, 311 flow. Second operand 6 states and 638 transitions. [2024-11-28 02:07:05,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 135 transitions, 389 flow [2024-11-28 02:07:05,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 135 transitions, 379 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 02:07:05,441 INFO L231 Difference]: Finished difference. Result has 138 places, 128 transitions, 323 flow [2024-11-28 02:07:05,442 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=301, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=323, PETRI_PLACES=138, PETRI_TRANSITIONS=128} [2024-11-28 02:07:05,443 INFO L279 CegarLoopForPetriNet]: 128 programPoint places, 10 predicate places. [2024-11-28 02:07:05,443 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 128 transitions, 323 flow [2024-11-28 02:07:05,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 102.4) internal successors, (512), 5 states have internal predecessors, (512), 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 02:07:05,444 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:05,444 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] [2024-11-28 02:07:05,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 02:07:05,445 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 02:07:05,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:05,445 INFO L85 PathProgramCache]: Analyzing trace with hash -85258337, now seen corresponding path program 1 times [2024-11-28 02:07:05,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:05,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058202811] [2024-11-28 02:07:05,446 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:05,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:05,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:05,819 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 02:07:05,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:05,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058202811] [2024-11-28 02:07:05,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058202811] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:05,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:05,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:07:05,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781216561] [2024-11-28 02:07:05,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:05,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:07:05,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:05,821 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:07:05,821 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:07:05,978 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 127 [2024-11-28 02:07:05,979 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 128 transitions, 323 flow. Second operand has 6 states, 6 states have (on average 95.5) internal successors, (573), 6 states have internal predecessors, (573), 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 02:07:05,979 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:05,979 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 127 [2024-11-28 02:07:05,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:07,160 INFO L124 PetriNetUnfolderBase]: 2018/6704 cut-off events. [2024-11-28 02:07:07,160 INFO L125 PetriNetUnfolderBase]: For 560/560 co-relation queries the response was YES. [2024-11-28 02:07:07,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10953 conditions, 6704 events. 2018/6704 cut-off events. For 560/560 co-relation queries the response was YES. Maximal size of possible extension queue 326. Compared 66859 event pairs, 917 based on Foata normal form. 0/6064 useless extension candidates. Maximal degree in co-relation 4991. Up to 2175 conditions per place. [2024-11-28 02:07:07,209 INFO L140 encePairwiseOnDemand]: 121/127 looper letters, 49 selfloop transitions, 5 changer transitions 0/151 dead transitions. [2024-11-28 02:07:07,209 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 151 transitions, 477 flow [2024-11-28 02:07:07,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:07:07,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 02:07:07,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 618 transitions. [2024-11-28 02:07:07,212 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8110236220472441 [2024-11-28 02:07:07,212 INFO L175 Difference]: Start difference. First operand has 138 places, 128 transitions, 323 flow. Second operand 6 states and 618 transitions. [2024-11-28 02:07:07,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 151 transitions, 477 flow [2024-11-28 02:07:07,222 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 151 transitions, 465 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-28 02:07:07,224 INFO L231 Difference]: Finished difference. Result has 135 places, 127 transitions, 319 flow [2024-11-28 02:07:07,224 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=309, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=319, PETRI_PLACES=135, PETRI_TRANSITIONS=127} [2024-11-28 02:07:07,224 INFO L279 CegarLoopForPetriNet]: 128 programPoint places, 7 predicate places. [2024-11-28 02:07:07,224 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 127 transitions, 319 flow [2024-11-28 02:07:07,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 95.5) internal successors, (573), 6 states have internal predecessors, (573), 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 02:07:07,225 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:07,225 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] [2024-11-28 02:07:07,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 02:07:07,225 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 02:07:07,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:07,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1690738483, now seen corresponding path program 1 times [2024-11-28 02:07:07,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:07,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774602019] [2024-11-28 02:07:07,226 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:07,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:07,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:07,261 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 02:07:07,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:07,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774602019] [2024-11-28 02:07:07,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774602019] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:07,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:07,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:07:07,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966385824] [2024-11-28 02:07:07,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:07,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:07:07,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:07,263 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:07:07,263 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:07:07,285 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 127 [2024-11-28 02:07:07,286 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 127 transitions, 319 flow. Second operand has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 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 02:07:07,286 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:07,286 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 127 [2024-11-28 02:07:07,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:08,415 INFO L124 PetriNetUnfolderBase]: 1740/6603 cut-off events. [2024-11-28 02:07:08,415 INFO L125 PetriNetUnfolderBase]: For 1634/2353 co-relation queries the response was YES. [2024-11-28 02:07:08,453 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10928 conditions, 6603 events. 1740/6603 cut-off events. For 1634/2353 co-relation queries the response was YES. Maximal size of possible extension queue 319. Compared 68633 event pairs, 967 based on Foata normal form. 10/5807 useless extension candidates. Maximal degree in co-relation 9146. Up to 2240 conditions per place. [2024-11-28 02:07:08,488 INFO L140 encePairwiseOnDemand]: 120/127 looper letters, 29 selfloop transitions, 9 changer transitions 0/142 dead transitions. [2024-11-28 02:07:08,488 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 142 transitions, 453 flow [2024-11-28 02:07:08,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:07:08,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:07:08,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 346 transitions. [2024-11-28 02:07:08,490 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9081364829396326 [2024-11-28 02:07:08,491 INFO L175 Difference]: Start difference. First operand has 135 places, 127 transitions, 319 flow. Second operand 3 states and 346 transitions. [2024-11-28 02:07:08,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 142 transitions, 453 flow [2024-11-28 02:07:08,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 142 transitions, 443 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 02:07:08,495 INFO L231 Difference]: Finished difference. Result has 134 places, 134 transitions, 385 flow [2024-11-28 02:07:08,496 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=309, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=385, PETRI_PLACES=134, PETRI_TRANSITIONS=134} [2024-11-28 02:07:08,497 INFO L279 CegarLoopForPetriNet]: 128 programPoint places, 6 predicate places. [2024-11-28 02:07:08,497 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 134 transitions, 385 flow [2024-11-28 02:07:08,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 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 02:07:08,497 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:08,498 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] [2024-11-28 02:07:08,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 02:07:08,498 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 02:07:08,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:08,499 INFO L85 PathProgramCache]: Analyzing trace with hash -473782499, now seen corresponding path program 1 times [2024-11-28 02:07:08,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:08,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536937074] [2024-11-28 02:07:08,500 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:08,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:08,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:08,989 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 02:07:08,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:08,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536937074] [2024-11-28 02:07:08,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536937074] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:08,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:08,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:07:08,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895475955] [2024-11-28 02:07:08,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:08,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:07:08,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:08,991 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:07:08,991 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:07:09,135 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 127 [2024-11-28 02:07:09,136 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 134 transitions, 385 flow. Second operand has 6 states, 6 states have (on average 98.16666666666667) internal successors, (589), 6 states have internal predecessors, (589), 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 02:07:09,136 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:09,136 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 127 [2024-11-28 02:07:09,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:10,624 INFO L124 PetriNetUnfolderBase]: 2874/10393 cut-off events. [2024-11-28 02:07:10,624 INFO L125 PetriNetUnfolderBase]: For 1726/2295 co-relation queries the response was YES. [2024-11-28 02:07:10,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17543 conditions, 10393 events. 2874/10393 cut-off events. For 1726/2295 co-relation queries the response was YES. Maximal size of possible extension queue 464. Compared 114851 event pairs, 1408 based on Foata normal form. 27/9249 useless extension candidates. Maximal degree in co-relation 13956. Up to 2157 conditions per place. [2024-11-28 02:07:10,712 INFO L140 encePairwiseOnDemand]: 121/127 looper letters, 46 selfloop transitions, 5 changer transitions 0/157 dead transitions. [2024-11-28 02:07:10,712 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 157 transitions, 533 flow [2024-11-28 02:07:10,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:07:10,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 02:07:10,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 628 transitions. [2024-11-28 02:07:10,714 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8241469816272966 [2024-11-28 02:07:10,715 INFO L175 Difference]: Start difference. First operand has 134 places, 134 transitions, 385 flow. Second operand 6 states and 628 transitions. [2024-11-28 02:07:10,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 157 transitions, 533 flow [2024-11-28 02:07:10,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 157 transitions, 515 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 02:07:10,730 INFO L231 Difference]: Finished difference. Result has 136 places, 133 transitions, 375 flow [2024-11-28 02:07:10,730 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=365, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=375, PETRI_PLACES=136, PETRI_TRANSITIONS=133} [2024-11-28 02:07:10,731 INFO L279 CegarLoopForPetriNet]: 128 programPoint places, 8 predicate places. [2024-11-28 02:07:10,731 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 133 transitions, 375 flow [2024-11-28 02:07:10,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 98.16666666666667) internal successors, (589), 6 states have internal predecessors, (589), 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 02:07:10,732 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:10,732 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] [2024-11-28 02:07:10,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 02:07:10,733 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 02:07:10,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:10,733 INFO L85 PathProgramCache]: Analyzing trace with hash 506774368, now seen corresponding path program 1 times [2024-11-28 02:07:10,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:10,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907099567] [2024-11-28 02:07:10,734 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:10,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:10,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:10,859 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 02:07:10,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:10,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907099567] [2024-11-28 02:07:10,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907099567] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:10,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:10,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:07:10,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164162170] [2024-11-28 02:07:10,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:10,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:07:10,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:10,861 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:07:10,861 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:07:11,044 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 127 [2024-11-28 02:07:11,045 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 133 transitions, 375 flow. Second operand has 6 states, 6 states have (on average 102.16666666666667) internal successors, (613), 6 states have internal predecessors, (613), 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 02:07:11,045 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:11,046 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 127 [2024-11-28 02:07:11,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:12,100 INFO L124 PetriNetUnfolderBase]: 1307/6235 cut-off events. [2024-11-28 02:07:12,100 INFO L125 PetriNetUnfolderBase]: For 994/1251 co-relation queries the response was YES. [2024-11-28 02:07:12,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10208 conditions, 6235 events. 1307/6235 cut-off events. For 994/1251 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 64527 event pairs, 664 based on Foata normal form. 65/5759 useless extension candidates. Maximal degree in co-relation 5448. Up to 1257 conditions per place. [2024-11-28 02:07:12,132 INFO L140 encePairwiseOnDemand]: 120/127 looper letters, 38 selfloop transitions, 6 changer transitions 0/152 dead transitions. [2024-11-28 02:07:12,132 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 152 transitions, 512 flow [2024-11-28 02:07:12,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:07:12,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 02:07:12,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 645 transitions. [2024-11-28 02:07:12,135 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8464566929133859 [2024-11-28 02:07:12,135 INFO L175 Difference]: Start difference. First operand has 136 places, 133 transitions, 375 flow. Second operand 6 states and 645 transitions. [2024-11-28 02:07:12,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 152 transitions, 512 flow [2024-11-28 02:07:12,139 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 152 transitions, 500 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 02:07:12,141 INFO L231 Difference]: Finished difference. Result has 138 places, 135 transitions, 391 flow [2024-11-28 02:07:12,141 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=365, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=391, PETRI_PLACES=138, PETRI_TRANSITIONS=135} [2024-11-28 02:07:12,142 INFO L279 CegarLoopForPetriNet]: 128 programPoint places, 10 predicate places. [2024-11-28 02:07:12,142 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 135 transitions, 391 flow [2024-11-28 02:07:12,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 102.16666666666667) internal successors, (613), 6 states have internal predecessors, (613), 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 02:07:12,142 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:12,143 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] [2024-11-28 02:07:12,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 02:07:12,143 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 02:07:12,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:12,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1435512803, now seen corresponding path program 1 times [2024-11-28 02:07:12,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:12,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283622199] [2024-11-28 02:07:12,144 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:12,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:12,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:12,186 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 02:07:12,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:12,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283622199] [2024-11-28 02:07:12,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283622199] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:12,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:12,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:07:12,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933344408] [2024-11-28 02:07:12,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:12,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:07:12,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:12,188 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:07:12,188 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:07:12,214 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 127 [2024-11-28 02:07:12,215 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 135 transitions, 391 flow. Second operand has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 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 02:07:12,215 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:12,215 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 127 [2024-11-28 02:07:12,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:12,941 INFO L124 PetriNetUnfolderBase]: 1088/4910 cut-off events. [2024-11-28 02:07:12,942 INFO L125 PetriNetUnfolderBase]: For 2489/2752 co-relation queries the response was YES. [2024-11-28 02:07:12,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9012 conditions, 4910 events. 1088/4910 cut-off events. For 2489/2752 co-relation queries the response was YES. Maximal size of possible extension queue 215. Compared 51317 event pairs, 589 based on Foata normal form. 8/4546 useless extension candidates. Maximal degree in co-relation 8255. Up to 1450 conditions per place. [2024-11-28 02:07:12,966 INFO L140 encePairwiseOnDemand]: 120/127 looper letters, 31 selfloop transitions, 13 changer transitions 0/151 dead transitions. [2024-11-28 02:07:12,967 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 151 transitions, 552 flow [2024-11-28 02:07:12,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:07:12,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:07:12,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 345 transitions. [2024-11-28 02:07:12,968 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.905511811023622 [2024-11-28 02:07:12,968 INFO L175 Difference]: Start difference. First operand has 138 places, 135 transitions, 391 flow. Second operand 3 states and 345 transitions. [2024-11-28 02:07:12,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 151 transitions, 552 flow [2024-11-28 02:07:12,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 151 transitions, 544 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 02:07:12,974 INFO L231 Difference]: Finished difference. Result has 139 places, 144 transitions, 501 flow [2024-11-28 02:07:12,974 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=383, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=501, PETRI_PLACES=139, PETRI_TRANSITIONS=144} [2024-11-28 02:07:12,975 INFO L279 CegarLoopForPetriNet]: 128 programPoint places, 11 predicate places. [2024-11-28 02:07:12,975 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 144 transitions, 501 flow [2024-11-28 02:07:12,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 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 02:07:12,975 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:12,976 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, 1] [2024-11-28 02:07:12,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 02:07:12,976 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 02:07:12,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:12,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1204425935, now seen corresponding path program 1 times [2024-11-28 02:07:12,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:12,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279704729] [2024-11-28 02:07:12,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:12,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:12,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:13,064 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 02:07:13,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:13,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279704729] [2024-11-28 02:07:13,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279704729] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:13,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:13,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:07:13,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420244892] [2024-11-28 02:07:13,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:13,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:07:13,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:13,065 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:07:13,066 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:07:13,079 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 127 [2024-11-28 02:07:13,080 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 144 transitions, 501 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 02:07:13,080 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:13,080 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 127 [2024-11-28 02:07:13,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:13,322 INFO L124 PetriNetUnfolderBase]: 117/1565 cut-off events. [2024-11-28 02:07:13,322 INFO L125 PetriNetUnfolderBase]: For 697/739 co-relation queries the response was YES. [2024-11-28 02:07:13,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2580 conditions, 1565 events. 117/1565 cut-off events. For 697/739 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 12786 event pairs, 43 based on Foata normal form. 21/1532 useless extension candidates. Maximal degree in co-relation 2091. Up to 144 conditions per place. [2024-11-28 02:07:13,330 INFO L140 encePairwiseOnDemand]: 121/127 looper letters, 12 selfloop transitions, 6 changer transitions 0/139 dead transitions. [2024-11-28 02:07:13,330 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 139 transitions, 474 flow [2024-11-28 02:07:13,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:07:13,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:07:13,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 354 transitions. [2024-11-28 02:07:13,332 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9291338582677166 [2024-11-28 02:07:13,332 INFO L175 Difference]: Start difference. First operand has 139 places, 144 transitions, 501 flow. Second operand 3 states and 354 transitions. [2024-11-28 02:07:13,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 139 transitions, 474 flow [2024-11-28 02:07:13,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 139 transitions, 460 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-28 02:07:13,338 INFO L231 Difference]: Finished difference. Result has 139 places, 134 transitions, 405 flow [2024-11-28 02:07:13,338 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=393, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=405, PETRI_PLACES=139, PETRI_TRANSITIONS=134} [2024-11-28 02:07:13,338 INFO L279 CegarLoopForPetriNet]: 128 programPoint places, 11 predicate places. [2024-11-28 02:07:13,339 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 134 transitions, 405 flow [2024-11-28 02:07:13,339 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 02:07:13,339 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:13,339 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-28 02:07:13,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 02:07:13,340 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 02:07:13,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:13,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1366035598, now seen corresponding path program 1 times [2024-11-28 02:07:13,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:13,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843205923] [2024-11-28 02:07:13,341 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:13,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:13,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:13,389 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 02:07:13,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:13,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843205923] [2024-11-28 02:07:13,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843205923] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:13,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:13,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:07:13,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598862390] [2024-11-28 02:07:13,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:13,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:07:13,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:13,391 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:07:13,391 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:07:13,412 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 127 [2024-11-28 02:07:13,413 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 134 transitions, 405 flow. Second operand has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 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 02:07:13,413 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:13,413 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 127 [2024-11-28 02:07:13,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:13,690 INFO L124 PetriNetUnfolderBase]: 203/1858 cut-off events. [2024-11-28 02:07:13,690 INFO L125 PetriNetUnfolderBase]: For 1335/1400 co-relation queries the response was YES. [2024-11-28 02:07:13,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3433 conditions, 1858 events. 203/1858 cut-off events. For 1335/1400 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 16316 event pairs, 134 based on Foata normal form. 3/1769 useless extension candidates. Maximal degree in co-relation 2878. Up to 435 conditions per place. [2024-11-28 02:07:13,698 INFO L140 encePairwiseOnDemand]: 122/127 looper letters, 25 selfloop transitions, 5 changer transitions 0/139 dead transitions. [2024-11-28 02:07:13,699 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 139 transitions, 487 flow [2024-11-28 02:07:13,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:07:13,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:07:13,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 338 transitions. [2024-11-28 02:07:13,700 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8871391076115486 [2024-11-28 02:07:13,701 INFO L175 Difference]: Start difference. First operand has 139 places, 134 transitions, 405 flow. Second operand 3 states and 338 transitions. [2024-11-28 02:07:13,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 139 transitions, 487 flow [2024-11-28 02:07:13,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 139 transitions, 481 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 02:07:13,705 INFO L231 Difference]: Finished difference. Result has 142 places, 137 transitions, 439 flow [2024-11-28 02:07:13,706 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=399, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=439, PETRI_PLACES=142, PETRI_TRANSITIONS=137} [2024-11-28 02:07:13,706 INFO L279 CegarLoopForPetriNet]: 128 programPoint places, 14 predicate places. [2024-11-28 02:07:13,706 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 137 transitions, 439 flow [2024-11-28 02:07:13,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 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 02:07:13,707 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:13,707 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 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 02:07:13,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-28 02:07:13,707 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-28 02:07:13,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:13,708 INFO L85 PathProgramCache]: Analyzing trace with hash 954290548, now seen corresponding path program 1 times [2024-11-28 02:07:13,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:13,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164339496] [2024-11-28 02:07:13,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:13,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:13,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:07:13,761 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:07:13,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:07:13,804 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 02:07:13,804 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 02:07:13,804 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2024-11-28 02:07:13,804 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2024-11-28 02:07:13,804 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2024-11-28 02:07:13,805 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 8 remaining) [2024-11-28 02:07:13,805 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2024-11-28 02:07:13,805 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2024-11-28 02:07:13,805 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2024-11-28 02:07:13,805 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2024-11-28 02:07:13,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-28 02:07:13,806 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:13,807 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 02:07:13,807 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-28 02:07:13,843 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-28 02:07:13,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 147 places, 145 transitions, 330 flow [2024-11-28 02:07:13,947 INFO L124 PetriNetUnfolderBase]: 43/592 cut-off events. [2024-11-28 02:07:13,947 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2024-11-28 02:07:13,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 643 conditions, 592 events. 43/592 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2105 event pairs, 6 based on Foata normal form. 0/508 useless extension candidates. Maximal degree in co-relation 370. Up to 32 conditions per place. [2024-11-28 02:07:13,949 INFO L82 GeneralOperation]: Start removeDead. Operand has 147 places, 145 transitions, 330 flow [2024-11-28 02:07:13,953 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 147 places, 145 transitions, 330 flow [2024-11-28 02:07:13,957 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:07:13,958 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;@5e6eb36f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:07:13,958 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-28 02:07:13,964 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 02:07:13,964 INFO L124 PetriNetUnfolderBase]: 3/48 cut-off events. [2024-11-28 02:07:13,964 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 02:07:13,964 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:13,965 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] [2024-11-28 02:07:13,965 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 02:07:13,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:13,966 INFO L85 PathProgramCache]: Analyzing trace with hash 857648252, now seen corresponding path program 1 times [2024-11-28 02:07:13,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:13,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921951996] [2024-11-28 02:07:13,966 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:13,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:13,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:13,994 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 02:07:13,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:13,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921951996] [2024-11-28 02:07:13,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921951996] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:13,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:13,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:07:13,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270675101] [2024-11-28 02:07:13,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:13,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:07:13,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:13,996 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:07:13,996 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:07:14,024 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 145 [2024-11-28 02:07:14,025 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 145 transitions, 330 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 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 02:07:14,025 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:14,025 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 145 [2024-11-28 02:07:14,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:16,990 INFO L124 PetriNetUnfolderBase]: 7859/23535 cut-off events. [2024-11-28 02:07:16,990 INFO L125 PetriNetUnfolderBase]: For 2606/2957 co-relation queries the response was YES. [2024-11-28 02:07:17,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35885 conditions, 23535 events. 7859/23535 cut-off events. For 2606/2957 co-relation queries the response was YES. Maximal size of possible extension queue 766. Compared 271580 event pairs, 4292 based on Foata normal form. 875/22190 useless extension candidates. Maximal degree in co-relation 28583. Up to 7653 conditions per place. [2024-11-28 02:07:17,110 INFO L140 encePairwiseOnDemand]: 135/145 looper letters, 30 selfloop transitions, 6 changer transitions 1/155 dead transitions. [2024-11-28 02:07:17,110 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 155 transitions, 422 flow [2024-11-28 02:07:17,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:07:17,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:07:17,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 397 transitions. [2024-11-28 02:07:17,112 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9126436781609195 [2024-11-28 02:07:17,112 INFO L175 Difference]: Start difference. First operand has 147 places, 145 transitions, 330 flow. Second operand 3 states and 397 transitions. [2024-11-28 02:07:17,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 155 transitions, 422 flow [2024-11-28 02:07:17,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 155 transitions, 422 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 02:07:17,118 INFO L231 Difference]: Finished difference. Result has 151 places, 146 transitions, 368 flow [2024-11-28 02:07:17,119 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=368, PETRI_PLACES=151, PETRI_TRANSITIONS=146} [2024-11-28 02:07:17,119 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 4 predicate places. [2024-11-28 02:07:17,119 INFO L471 AbstractCegarLoop]: Abstraction has has 151 places, 146 transitions, 368 flow [2024-11-28 02:07:17,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 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 02:07:17,120 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:17,120 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] [2024-11-28 02:07:17,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-28 02:07:17,120 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 02:07:17,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:17,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1394567106, now seen corresponding path program 1 times [2024-11-28 02:07:17,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:17,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016372809] [2024-11-28 02:07:17,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:17,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:17,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:17,195 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 02:07:17,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:17,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016372809] [2024-11-28 02:07:17,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016372809] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:17,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:17,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:07:17,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772106922] [2024-11-28 02:07:17,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:17,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:07:17,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:17,197 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:07:17,197 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:07:17,358 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 145 [2024-11-28 02:07:17,359 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 146 transitions, 368 flow. Second operand has 5 states, 5 states have (on average 116.4) internal successors, (582), 5 states have internal predecessors, (582), 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 02:07:17,359 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:17,359 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 145 [2024-11-28 02:07:17,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:21,048 INFO L124 PetriNetUnfolderBase]: 8820/32829 cut-off events. [2024-11-28 02:07:21,048 INFO L125 PetriNetUnfolderBase]: For 2371/2467 co-relation queries the response was YES. [2024-11-28 02:07:21,304 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49181 conditions, 32829 events. 8820/32829 cut-off events. For 2371/2467 co-relation queries the response was YES. Maximal size of possible extension queue 871. Compared 419202 event pairs, 5746 based on Foata normal form. 1/28525 useless extension candidates. Maximal degree in co-relation 27306. Up to 9926 conditions per place. [2024-11-28 02:07:21,407 INFO L140 encePairwiseOnDemand]: 137/145 looper letters, 28 selfloop transitions, 2 changer transitions 5/154 dead transitions. [2024-11-28 02:07:21,407 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 154 transitions, 454 flow [2024-11-28 02:07:21,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:07:21,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 02:07:21,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 726 transitions. [2024-11-28 02:07:21,410 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8344827586206897 [2024-11-28 02:07:21,410 INFO L175 Difference]: Start difference. First operand has 151 places, 146 transitions, 368 flow. Second operand 6 states and 726 transitions. [2024-11-28 02:07:21,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 154 transitions, 454 flow [2024-11-28 02:07:21,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 154 transitions, 442 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 02:07:21,504 INFO L231 Difference]: Finished difference. Result has 157 places, 147 transitions, 378 flow [2024-11-28 02:07:21,504 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=378, PETRI_PLACES=157, PETRI_TRANSITIONS=147} [2024-11-28 02:07:21,504 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 10 predicate places. [2024-11-28 02:07:21,504 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 147 transitions, 378 flow [2024-11-28 02:07:21,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 116.4) internal successors, (582), 5 states have internal predecessors, (582), 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 02:07:21,505 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:21,505 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] [2024-11-28 02:07:21,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-28 02:07:21,505 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 02:07:21,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:21,506 INFO L85 PathProgramCache]: Analyzing trace with hash -638874145, now seen corresponding path program 1 times [2024-11-28 02:07:21,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:21,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102255909] [2024-11-28 02:07:21,506 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:21,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:21,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:21,722 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 02:07:21,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:21,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102255909] [2024-11-28 02:07:21,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102255909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:21,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:21,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:07:21,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161134794] [2024-11-28 02:07:21,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:21,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:07:21,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:21,724 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:07:21,724 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:07:21,833 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 145 [2024-11-28 02:07:21,834 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 147 transitions, 378 flow. Second operand has 6 states, 6 states have (on average 109.5) internal successors, (657), 6 states have internal predecessors, (657), 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 02:07:21,834 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:21,834 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 145 [2024-11-28 02:07:21,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:26,674 INFO L124 PetriNetUnfolderBase]: 13637/36423 cut-off events. [2024-11-28 02:07:26,674 INFO L125 PetriNetUnfolderBase]: For 2952/2952 co-relation queries the response was YES. [2024-11-28 02:07:26,799 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60802 conditions, 36423 events. 13637/36423 cut-off events. For 2952/2952 co-relation queries the response was YES. Maximal size of possible extension queue 1438. Compared 434382 event pairs, 2788 based on Foata normal form. 0/32062 useless extension candidates. Maximal degree in co-relation 60497. Up to 13301 conditions per place. [2024-11-28 02:07:26,908 INFO L140 encePairwiseOnDemand]: 139/145 looper letters, 61 selfloop transitions, 5 changer transitions 0/178 dead transitions. [2024-11-28 02:07:26,908 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 178 transitions, 572 flow [2024-11-28 02:07:26,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:07:26,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 02:07:26,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 714 transitions. [2024-11-28 02:07:26,912 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8206896551724138 [2024-11-28 02:07:26,912 INFO L175 Difference]: Start difference. First operand has 157 places, 147 transitions, 378 flow. Second operand 6 states and 714 transitions. [2024-11-28 02:07:26,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 178 transitions, 572 flow [2024-11-28 02:07:26,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 178 transitions, 560 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-28 02:07:26,981 INFO L231 Difference]: Finished difference. Result has 154 places, 146 transitions, 374 flow [2024-11-28 02:07:26,981 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=374, PETRI_PLACES=154, PETRI_TRANSITIONS=146} [2024-11-28 02:07:26,982 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 7 predicate places. [2024-11-28 02:07:26,982 INFO L471 AbstractCegarLoop]: Abstraction has has 154 places, 146 transitions, 374 flow [2024-11-28 02:07:26,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 109.5) internal successors, (657), 6 states have internal predecessors, (657), 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 02:07:26,983 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:26,983 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] [2024-11-28 02:07:26,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-28 02:07:26,983 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 02:07:26,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:26,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1987218957, now seen corresponding path program 1 times [2024-11-28 02:07:26,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:26,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843054410] [2024-11-28 02:07:26,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:26,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:26,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:27,012 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 02:07:27,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:27,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843054410] [2024-11-28 02:07:27,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843054410] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:27,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:27,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:07:27,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326991608] [2024-11-28 02:07:27,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:27,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:07:27,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:27,014 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:07:27,014 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:07:27,040 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 145 [2024-11-28 02:07:27,040 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 146 transitions, 374 flow. Second operand has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 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 02:07:27,040 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:27,040 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 145 [2024-11-28 02:07:27,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:31,941 INFO L124 PetriNetUnfolderBase]: 13629/41376 cut-off events. [2024-11-28 02:07:31,941 INFO L125 PetriNetUnfolderBase]: For 10604/13048 co-relation queries the response was YES. [2024-11-28 02:07:32,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70776 conditions, 41376 events. 13629/41376 cut-off events. For 10604/13048 co-relation queries the response was YES. Maximal size of possible extension queue 1510. Compared 529725 event pairs, 7860 based on Foata normal form. 36/36602 useless extension candidates. Maximal degree in co-relation 58802. Up to 15880 conditions per place. [2024-11-28 02:07:32,203 INFO L140 encePairwiseOnDemand]: 137/145 looper letters, 39 selfloop transitions, 11 changer transitions 0/167 dead transitions. [2024-11-28 02:07:32,203 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 167 transitions, 560 flow [2024-11-28 02:07:32,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:07:32,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:07:32,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 395 transitions. [2024-11-28 02:07:32,208 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9080459770114943 [2024-11-28 02:07:32,208 INFO L175 Difference]: Start difference. First operand has 154 places, 146 transitions, 374 flow. Second operand 3 states and 395 transitions. [2024-11-28 02:07:32,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 167 transitions, 560 flow [2024-11-28 02:07:32,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 167 transitions, 550 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 02:07:32,217 INFO L231 Difference]: Finished difference. Result has 153 places, 155 transitions, 460 flow [2024-11-28 02:07:32,218 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=460, PETRI_PLACES=153, PETRI_TRANSITIONS=155} [2024-11-28 02:07:32,218 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 6 predicate places. [2024-11-28 02:07:32,218 INFO L471 AbstractCegarLoop]: Abstraction has has 153 places, 155 transitions, 460 flow [2024-11-28 02:07:32,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 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 02:07:32,219 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:32,219 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] [2024-11-28 02:07:32,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-28 02:07:32,219 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 02:07:32,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:32,220 INFO L85 PathProgramCache]: Analyzing trace with hash 389726334, now seen corresponding path program 1 times [2024-11-28 02:07:32,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:32,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963904939] [2024-11-28 02:07:32,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:32,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:32,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:32,542 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 02:07:32,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:32,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963904939] [2024-11-28 02:07:32,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963904939] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:32,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:32,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:07:32,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429163486] [2024-11-28 02:07:32,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:32,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:07:32,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:32,544 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:07:32,544 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:07:32,913 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 145 [2024-11-28 02:07:32,914 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 155 transitions, 460 flow. Second operand has 6 states, 6 states have (on average 112.16666666666667) internal successors, (673), 6 states have internal predecessors, (673), 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 02:07:32,915 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:32,915 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 145 [2024-11-28 02:07:32,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:38,663 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([600] L1023-4-->L1023-5: Formula: (= |v_#race~data~0_4| |v_threadThread3of4ForFork0_#t~nondet5_3|) InVars {threadThread3of4ForFork0_#t~nondet5=|v_threadThread3of4ForFork0_#t~nondet5_3|} OutVars{#race~data~0=|v_#race~data~0_4|, threadThread3of4ForFork0_#t~nondet5=|v_threadThread3of4ForFork0_#t~nondet5_3|} AuxVars[] AssignedVars[#race~data~0][152], [120#L1038-1true, Black: 157#(= |ULTIMATE.start_main_~i~0#1| 0), 132#L1024true, 172#true, 57#L1023-5true, Black: 174#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 146#true, 177#true, 147#true, Black: 152#(= |#race~data~0| 0), 45#L1022-3true, 144#true, 142#true]) [2024-11-28 02:07:38,663 INFO L294 olderBase$Statistics]: this new event has 150 ancestors and is cut-off event [2024-11-28 02:07:38,664 INFO L297 olderBase$Statistics]: existing Event has 106 ancestors and is cut-off event [2024-11-28 02:07:38,664 INFO L297 olderBase$Statistics]: existing Event has 106 ancestors and is cut-off event [2024-11-28 02:07:38,664 INFO L297 olderBase$Statistics]: existing Event has 150 ancestors and is cut-off event [2024-11-28 02:07:38,808 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([648] L1023-4-->L1023-5: Formula: (= |v_threadThread4of4ForFork0_#t~nondet5_3| |v_#race~data~0_4|) InVars {threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|} OutVars{threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|, #race~data~0=|v_#race~data~0_4|} AuxVars[] AssignedVars[#race~data~0][184], [120#L1038-1true, Black: 157#(= |ULTIMATE.start_main_~i~0#1| 0), 172#true, 148#true, 57#L1023-5true, Black: 174#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 146#true, 177#true, 25#L1023-5true, 143#true, Black: 152#(= |#race~data~0| 0), 98#L1023-6true, 142#true]) [2024-11-28 02:07:38,808 INFO L294 olderBase$Statistics]: this new event has 154 ancestors and is cut-off event [2024-11-28 02:07:38,808 INFO L297 olderBase$Statistics]: existing Event has 154 ancestors and is cut-off event [2024-11-28 02:07:38,808 INFO L297 olderBase$Statistics]: existing Event has 154 ancestors and is cut-off event [2024-11-28 02:07:38,809 INFO L297 olderBase$Statistics]: existing Event has 154 ancestors and is cut-off event [2024-11-28 02:07:38,872 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([600] L1023-4-->L1023-5: Formula: (= |v_#race~data~0_4| |v_threadThread3of4ForFork0_#t~nondet5_3|) InVars {threadThread3of4ForFork0_#t~nondet5=|v_threadThread3of4ForFork0_#t~nondet5_3|} OutVars{#race~data~0=|v_#race~data~0_4|, threadThread3of4ForFork0_#t~nondet5=|v_threadThread3of4ForFork0_#t~nondet5_3|} AuxVars[] AssignedVars[#race~data~0][152], [120#L1038-1true, 114#L1023-5true, Black: 157#(= |ULTIMATE.start_main_~i~0#1| 0), 172#true, 57#L1023-5true, Black: 174#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 146#true, 177#true, 147#true, Black: 152#(= |#race~data~0| 0), 22#threadErr0ASSERT_VIOLATIONDATA_RACEtrue, 144#true, 142#true]) [2024-11-28 02:07:38,872 INFO L294 olderBase$Statistics]: this new event has 154 ancestors and is cut-off event [2024-11-28 02:07:38,872 INFO L297 olderBase$Statistics]: existing Event has 110 ancestors and is cut-off event [2024-11-28 02:07:38,872 INFO L297 olderBase$Statistics]: existing Event has 110 ancestors and is cut-off event [2024-11-28 02:07:38,872 INFO L297 olderBase$Statistics]: existing Event has 154 ancestors and is cut-off event [2024-11-28 02:07:39,679 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([648] L1023-4-->L1023-5: Formula: (= |v_threadThread4of4ForFork0_#t~nondet5_3| |v_#race~data~0_4|) InVars {threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|} OutVars{threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|, #race~data~0=|v_#race~data~0_4|} AuxVars[] AssignedVars[#race~data~0][179], [120#L1038-1true, Black: 157#(= |ULTIMATE.start_main_~i~0#1| 0), 132#L1024true, 172#true, 148#true, 57#L1023-5true, Black: 174#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 146#true, 177#true, 25#L1023-5true, 143#true, Black: 152#(= |#race~data~0| 0), 142#true]) [2024-11-28 02:07:39,679 INFO L294 olderBase$Statistics]: this new event has 156 ancestors and is not cut-off event [2024-11-28 02:07:39,679 INFO L297 olderBase$Statistics]: existing Event has 156 ancestors and is not cut-off event [2024-11-28 02:07:39,679 INFO L297 olderBase$Statistics]: existing Event has 156 ancestors and is not cut-off event [2024-11-28 02:07:39,679 INFO L297 olderBase$Statistics]: existing Event has 156 ancestors and is not cut-off event [2024-11-28 02:07:40,126 INFO L124 PetriNetUnfolderBase]: 19998/58027 cut-off events. [2024-11-28 02:07:40,127 INFO L125 PetriNetUnfolderBase]: For 9604/13578 co-relation queries the response was YES. [2024-11-28 02:07:40,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100949 conditions, 58027 events. 19998/58027 cut-off events. For 9604/13578 co-relation queries the response was YES. Maximal size of possible extension queue 1947. Compared 760786 event pairs, 9798 based on Foata normal form. 80/50820 useless extension candidates. Maximal degree in co-relation 79527. Up to 12712 conditions per place. [2024-11-28 02:07:40,768 INFO L140 encePairwiseOnDemand]: 139/145 looper letters, 58 selfloop transitions, 5 changer transitions 0/186 dead transitions. [2024-11-28 02:07:40,769 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 186 transitions, 648 flow [2024-11-28 02:07:40,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:07:40,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 02:07:40,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 724 transitions. [2024-11-28 02:07:40,770 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.832183908045977 [2024-11-28 02:07:40,770 INFO L175 Difference]: Start difference. First operand has 153 places, 155 transitions, 460 flow. Second operand 6 states and 724 transitions. [2024-11-28 02:07:40,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 186 transitions, 648 flow [2024-11-28 02:07:40,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 186 transitions, 626 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 02:07:40,872 INFO L231 Difference]: Finished difference. Result has 155 places, 154 transitions, 446 flow [2024-11-28 02:07:40,873 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=436, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=446, PETRI_PLACES=155, PETRI_TRANSITIONS=154} [2024-11-28 02:07:40,873 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 8 predicate places. [2024-11-28 02:07:40,873 INFO L471 AbstractCegarLoop]: Abstraction has has 155 places, 154 transitions, 446 flow [2024-11-28 02:07:40,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 112.16666666666667) internal successors, (673), 6 states have internal predecessors, (673), 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 02:07:40,874 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:40,874 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] [2024-11-28 02:07:40,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-28 02:07:40,874 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 02:07:40,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:40,875 INFO L85 PathProgramCache]: Analyzing trace with hash -840743207, now seen corresponding path program 1 times [2024-11-28 02:07:40,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:40,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385625125] [2024-11-28 02:07:40,875 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:40,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:40,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:40,952 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 02:07:40,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:40,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385625125] [2024-11-28 02:07:40,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385625125] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:40,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:40,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:07:40,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389555588] [2024-11-28 02:07:40,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:40,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:07:40,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:40,956 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:07:40,956 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:07:41,066 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 145 [2024-11-28 02:07:41,067 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 154 transitions, 446 flow. Second operand has 6 states, 6 states have (on average 116.16666666666667) internal successors, (697), 6 states have internal predecessors, (697), 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 02:07:41,067 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:41,067 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 145 [2024-11-28 02:07:41,067 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:44,381 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([648] L1023-4-->L1023-5: Formula: (= |v_threadThread4of4ForFork0_#t~nondet5_3| |v_#race~data~0_4|) InVars {threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|} OutVars{threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|, #race~data~0=|v_#race~data~0_4|} AuxVars[] AssignedVars[#race~data~0][175], [120#L1038-1true, Black: 157#(= |ULTIMATE.start_main_~i~0#1| 0), 148#true, 187#(<= 1 |ULTIMATE.start_main_~threads_total~0#1|), 57#L1023-5true, Black: 174#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 146#true, 177#true, 25#L1023-5true, 143#true, Black: 152#(= |#race~data~0| 0), 98#L1023-6true, 142#true]) [2024-11-28 02:07:44,382 INFO L294 olderBase$Statistics]: this new event has 154 ancestors and is cut-off event [2024-11-28 02:07:44,382 INFO L297 olderBase$Statistics]: existing Event has 154 ancestors and is cut-off event [2024-11-28 02:07:44,382 INFO L297 olderBase$Statistics]: existing Event has 154 ancestors and is cut-off event [2024-11-28 02:07:44,382 INFO L297 olderBase$Statistics]: existing Event has 154 ancestors and is cut-off event [2024-11-28 02:07:44,876 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([648] L1023-4-->L1023-5: Formula: (= |v_threadThread4of4ForFork0_#t~nondet5_3| |v_#race~data~0_4|) InVars {threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|} OutVars{threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|, #race~data~0=|v_#race~data~0_4|} AuxVars[] AssignedVars[#race~data~0][174], [120#L1038-1true, 132#L1024true, Black: 157#(= |ULTIMATE.start_main_~i~0#1| 0), 148#true, 187#(<= 1 |ULTIMATE.start_main_~threads_total~0#1|), 57#L1023-5true, 146#true, Black: 174#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 177#true, 25#L1023-5true, 143#true, Black: 152#(= |#race~data~0| 0), 142#true]) [2024-11-28 02:07:44,876 INFO L294 olderBase$Statistics]: this new event has 156 ancestors and is not cut-off event [2024-11-28 02:07:44,876 INFO L297 olderBase$Statistics]: existing Event has 156 ancestors and is not cut-off event [2024-11-28 02:07:44,876 INFO L297 olderBase$Statistics]: existing Event has 156 ancestors and is not cut-off event [2024-11-28 02:07:44,876 INFO L297 olderBase$Statistics]: existing Event has 156 ancestors and is not cut-off event [2024-11-28 02:07:45,583 INFO L124 PetriNetUnfolderBase]: 10063/36474 cut-off events. [2024-11-28 02:07:45,583 INFO L125 PetriNetUnfolderBase]: For 6131/8102 co-relation queries the response was YES. [2024-11-28 02:07:45,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61443 conditions, 36474 events. 10063/36474 cut-off events. For 6131/8102 co-relation queries the response was YES. Maximal size of possible extension queue 1008. Compared 476470 event pairs, 4496 based on Foata normal form. 284/32609 useless extension candidates. Maximal degree in co-relation 31539. Up to 7614 conditions per place. [2024-11-28 02:07:45,790 INFO L140 encePairwiseOnDemand]: 138/145 looper letters, 47 selfloop transitions, 6 changer transitions 0/178 dead transitions. [2024-11-28 02:07:45,790 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 178 transitions, 614 flow [2024-11-28 02:07:45,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:07:45,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 02:07:45,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 738 transitions. [2024-11-28 02:07:45,791 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8482758620689655 [2024-11-28 02:07:45,791 INFO L175 Difference]: Start difference. First operand has 155 places, 154 transitions, 446 flow. Second operand 6 states and 738 transitions. [2024-11-28 02:07:45,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 178 transitions, 614 flow [2024-11-28 02:07:45,806 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 178 transitions, 602 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 02:07:45,807 INFO L231 Difference]: Finished difference. Result has 157 places, 156 transitions, 462 flow [2024-11-28 02:07:45,807 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=436, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=462, PETRI_PLACES=157, PETRI_TRANSITIONS=156} [2024-11-28 02:07:45,808 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 10 predicate places. [2024-11-28 02:07:45,808 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 156 transitions, 462 flow [2024-11-28 02:07:45,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 116.16666666666667) internal successors, (697), 6 states have internal predecessors, (697), 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 02:07:45,808 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:45,808 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] [2024-11-28 02:07:45,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-28 02:07:45,809 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 02:07:45,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:45,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1049327838, now seen corresponding path program 1 times [2024-11-28 02:07:45,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:45,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535898522] [2024-11-28 02:07:45,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:45,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:45,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:45,843 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 02:07:45,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:45,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535898522] [2024-11-28 02:07:45,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535898522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:45,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:45,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:07:45,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041722568] [2024-11-28 02:07:45,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:45,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:07:45,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:45,845 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:07:45,845 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:07:45,877 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 145 [2024-11-28 02:07:45,878 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 156 transitions, 462 flow. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 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 02:07:45,878 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:45,878 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 145 [2024-11-28 02:07:45,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:50,904 INFO L124 PetriNetUnfolderBase]: 11741/40880 cut-off events. [2024-11-28 02:07:50,904 INFO L125 PetriNetUnfolderBase]: For 22576/25612 co-relation queries the response was YES. [2024-11-28 02:07:51,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76769 conditions, 40880 events. 11741/40880 cut-off events. For 22576/25612 co-relation queries the response was YES. Maximal size of possible extension queue 1526. Compared 557841 event pairs, 6051 based on Foata normal form. 47/36752 useless extension candidates. Maximal degree in co-relation 29536. Up to 13416 conditions per place. [2024-11-28 02:07:51,432 INFO L140 encePairwiseOnDemand]: 137/145 looper letters, 43 selfloop transitions, 18 changer transitions 0/181 dead transitions. [2024-11-28 02:07:51,432 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 181 transitions, 707 flow [2024-11-28 02:07:51,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:07:51,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:07:51,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 394 transitions. [2024-11-28 02:07:51,433 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9057471264367816 [2024-11-28 02:07:51,433 INFO L175 Difference]: Start difference. First operand has 157 places, 156 transitions, 462 flow. Second operand 3 states and 394 transitions. [2024-11-28 02:07:51,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 181 transitions, 707 flow [2024-11-28 02:07:51,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 181 transitions, 699 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 02:07:51,442 INFO L231 Difference]: Finished difference. Result has 158 places, 170 transitions, 632 flow [2024-11-28 02:07:51,442 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=632, PETRI_PLACES=158, PETRI_TRANSITIONS=170} [2024-11-28 02:07:51,442 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 11 predicate places. [2024-11-28 02:07:51,442 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 170 transitions, 632 flow [2024-11-28 02:07:51,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 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 02:07:51,442 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:51,443 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, 1] [2024-11-28 02:07:51,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-28 02:07:51,443 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 02:07:51,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:51,443 INFO L85 PathProgramCache]: Analyzing trace with hash -2080877742, now seen corresponding path program 1 times [2024-11-28 02:07:51,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:51,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419321484] [2024-11-28 02:07:51,444 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:51,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:51,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:51,512 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 02:07:51,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:51,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419321484] [2024-11-28 02:07:51,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419321484] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:51,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:51,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:07:51,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128791969] [2024-11-28 02:07:51,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:51,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:07:51,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:51,513 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:07:51,514 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:07:51,524 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 145 [2024-11-28 02:07:51,525 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 170 transitions, 632 flow. Second operand has 3 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 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 02:07:51,525 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:51,525 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 145 [2024-11-28 02:07:51,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:52,289 INFO L124 PetriNetUnfolderBase]: 688/6745 cut-off events. [2024-11-28 02:07:52,289 INFO L125 PetriNetUnfolderBase]: For 3177/3615 co-relation queries the response was YES. [2024-11-28 02:07:52,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11139 conditions, 6745 events. 688/6745 cut-off events. For 3177/3615 co-relation queries the response was YES. Maximal size of possible extension queue 262. Compared 77267 event pairs, 149 based on Foata normal form. 177/6537 useless extension candidates. Maximal degree in co-relation 4490. Up to 662 conditions per place. [2024-11-28 02:07:52,321 INFO L140 encePairwiseOnDemand]: 137/145 looper letters, 16 selfloop transitions, 8 changer transitions 0/160 dead transitions. [2024-11-28 02:07:52,321 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 160 transitions, 565 flow [2024-11-28 02:07:52,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:07:52,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:07:52,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 403 transitions. [2024-11-28 02:07:52,322 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9264367816091954 [2024-11-28 02:07:52,322 INFO L175 Difference]: Start difference. First operand has 158 places, 170 transitions, 632 flow. Second operand 3 states and 403 transitions. [2024-11-28 02:07:52,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 160 transitions, 565 flow [2024-11-28 02:07:52,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 160 transitions, 551 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-28 02:07:52,329 INFO L231 Difference]: Finished difference. Result has 158 places, 153 transitions, 472 flow [2024-11-28 02:07:52,329 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=456, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=472, PETRI_PLACES=158, PETRI_TRANSITIONS=153} [2024-11-28 02:07:52,330 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 11 predicate places. [2024-11-28 02:07:52,330 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 153 transitions, 472 flow [2024-11-28 02:07:52,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 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 02:07:52,330 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:52,331 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-28 02:07:52,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-28 02:07:52,331 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 02:07:52,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:52,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1229790306, now seen corresponding path program 1 times [2024-11-28 02:07:52,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:52,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076339800] [2024-11-28 02:07:52,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:52,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:52,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:52,374 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 02:07:52,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:52,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076339800] [2024-11-28 02:07:52,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076339800] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:52,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:52,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:07:52,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903648874] [2024-11-28 02:07:52,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:52,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:07:52,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:52,376 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:07:52,376 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:07:52,401 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 145 [2024-11-28 02:07:52,401 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 153 transitions, 472 flow. Second operand has 3 states, 3 states have (on average 119.33333333333333) internal successors, (358), 3 states have internal predecessors, (358), 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 02:07:52,402 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:52,402 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 145 [2024-11-28 02:07:52,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:53,481 INFO L124 PetriNetUnfolderBase]: 1120/7987 cut-off events. [2024-11-28 02:07:53,481 INFO L125 PetriNetUnfolderBase]: For 6522/6641 co-relation queries the response was YES. [2024-11-28 02:07:53,498 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15239 conditions, 7987 events. 1120/7987 cut-off events. For 6522/6641 co-relation queries the response was YES. Maximal size of possible extension queue 336. Compared 95798 event pairs, 661 based on Foata normal form. 4/7478 useless extension candidates. Maximal degree in co-relation 11999. Up to 2068 conditions per place. [2024-11-28 02:07:53,509 INFO L140 encePairwiseOnDemand]: 140/145 looper letters, 33 selfloop transitions, 5 changer transitions 0/160 dead transitions. [2024-11-28 02:07:53,509 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 160 transitions, 586 flow [2024-11-28 02:07:53,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:07:53,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:07:53,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 384 transitions. [2024-11-28 02:07:53,510 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8827586206896552 [2024-11-28 02:07:53,510 INFO L175 Difference]: Start difference. First operand has 158 places, 153 transitions, 472 flow. Second operand 3 states and 384 transitions. [2024-11-28 02:07:53,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 160 transitions, 586 flow [2024-11-28 02:07:53,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 160 transitions, 578 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 02:07:53,515 INFO L231 Difference]: Finished difference. Result has 161 places, 156 transitions, 504 flow [2024-11-28 02:07:53,515 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=464, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=504, PETRI_PLACES=161, PETRI_TRANSITIONS=156} [2024-11-28 02:07:53,516 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 14 predicate places. [2024-11-28 02:07:53,516 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 156 transitions, 504 flow [2024-11-28 02:07:53,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.33333333333333) internal successors, (358), 3 states have internal predecessors, (358), 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 02:07:53,516 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:53,517 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:07:53,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-28 02:07:53,517 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 02:07:53,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:53,518 INFO L85 PathProgramCache]: Analyzing trace with hash -650764659, now seen corresponding path program 1 times [2024-11-28 02:07:53,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:53,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325602269] [2024-11-28 02:07:53,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:53,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:53,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:53,564 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 02:07:53,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:53,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325602269] [2024-11-28 02:07:53,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325602269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:53,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:53,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:07:53,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567328041] [2024-11-28 02:07:53,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:53,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:07:53,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:53,566 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:07:53,566 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:07:53,591 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 145 [2024-11-28 02:07:53,592 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 156 transitions, 504 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 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 02:07:53,592 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:53,592 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 145 [2024-11-28 02:07:53,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:54,565 INFO L124 PetriNetUnfolderBase]: 1121/8023 cut-off events. [2024-11-28 02:07:54,566 INFO L125 PetriNetUnfolderBase]: For 8714/8866 co-relation queries the response was YES. [2024-11-28 02:07:54,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15946 conditions, 8023 events. 1121/8023 cut-off events. For 8714/8866 co-relation queries the response was YES. Maximal size of possible extension queue 355. Compared 96523 event pairs, 707 based on Foata normal form. 4/7570 useless extension candidates. Maximal degree in co-relation 12796. Up to 2095 conditions per place. [2024-11-28 02:07:54,597 INFO L140 encePairwiseOnDemand]: 140/145 looper letters, 33 selfloop transitions, 5 changer transitions 0/162 dead transitions. [2024-11-28 02:07:54,597 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 162 transitions, 609 flow [2024-11-28 02:07:54,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:07:54,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:07:54,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 383 transitions. [2024-11-28 02:07:54,598 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8804597701149425 [2024-11-28 02:07:54,598 INFO L175 Difference]: Start difference. First operand has 161 places, 156 transitions, 504 flow. Second operand 3 states and 383 transitions. [2024-11-28 02:07:54,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 162 transitions, 609 flow [2024-11-28 02:07:54,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 162 transitions, 595 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-28 02:07:54,605 INFO L231 Difference]: Finished difference. Result has 163 places, 159 transitions, 532 flow [2024-11-28 02:07:54,605 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=532, PETRI_PLACES=163, PETRI_TRANSITIONS=159} [2024-11-28 02:07:54,605 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 16 predicate places. [2024-11-28 02:07:54,605 INFO L471 AbstractCegarLoop]: Abstraction has has 163 places, 159 transitions, 532 flow [2024-11-28 02:07:54,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 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 02:07:54,605 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:54,605 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:54,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-28 02:07:54,606 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 02:07:54,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:54,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1850972391, now seen corresponding path program 1 times [2024-11-28 02:07:54,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:54,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720250807] [2024-11-28 02:07:54,607 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:54,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:54,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:54,841 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 02:07:54,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:54,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720250807] [2024-11-28 02:07:54,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720250807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:54,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:54,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 02:07:54,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575936056] [2024-11-28 02:07:54,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:54,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 02:07:54,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:54,842 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 02:07:54,842 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:07:55,074 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 145 [2024-11-28 02:07:55,076 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 159 transitions, 532 flow. Second operand has 9 states, 9 states have (on average 111.88888888888889) internal successors, (1007), 9 states have internal predecessors, (1007), 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 02:07:55,076 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:55,076 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 145 [2024-11-28 02:07:55,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:56,917 INFO L124 PetriNetUnfolderBase]: 2205/9526 cut-off events. [2024-11-28 02:07:56,917 INFO L125 PetriNetUnfolderBase]: For 4861/5006 co-relation queries the response was YES. [2024-11-28 02:07:56,948 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18114 conditions, 9526 events. 2205/9526 cut-off events. For 4861/5006 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 99121 event pairs, 426 based on Foata normal form. 110/9416 useless extension candidates. Maximal degree in co-relation 8701. Up to 1508 conditions per place. [2024-11-28 02:07:56,964 INFO L140 encePairwiseOnDemand]: 131/145 looper letters, 82 selfloop transitions, 15 changer transitions 21/241 dead transitions. [2024-11-28 02:07:56,965 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 241 transitions, 1017 flow [2024-11-28 02:07:56,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 02:07:56,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-28 02:07:56,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1536 transitions. [2024-11-28 02:07:56,968 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8148541114058355 [2024-11-28 02:07:56,968 INFO L175 Difference]: Start difference. First operand has 163 places, 159 transitions, 532 flow. Second operand 13 states and 1536 transitions. [2024-11-28 02:07:56,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 241 transitions, 1017 flow [2024-11-28 02:07:56,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 241 transitions, 1001 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-28 02:07:56,981 INFO L231 Difference]: Finished difference. Result has 182 places, 166 transitions, 608 flow [2024-11-28 02:07:56,981 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=516, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=608, PETRI_PLACES=182, PETRI_TRANSITIONS=166} [2024-11-28 02:07:56,982 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 35 predicate places. [2024-11-28 02:07:56,982 INFO L471 AbstractCegarLoop]: Abstraction has has 182 places, 166 transitions, 608 flow [2024-11-28 02:07:56,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 111.88888888888889) internal successors, (1007), 9 states have internal predecessors, (1007), 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 02:07:56,982 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:56,982 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 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 02:07:56,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-28 02:07:56,982 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-28 02:07:56,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:56,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1119326703, now seen corresponding path program 1 times [2024-11-28 02:07:56,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:56,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512007068] [2024-11-28 02:07:56,983 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:56,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:57,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:07:57,018 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:07:57,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:07:57,048 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 02:07:57,048 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 02:07:57,049 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2024-11-28 02:07:57,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2024-11-28 02:07:57,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2024-11-28 02:07:57,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2024-11-28 02:07:57,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2024-11-28 02:07:57,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2024-11-28 02:07:57,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2024-11-28 02:07:57,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2024-11-28 02:07:57,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2024-11-28 02:07:57,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-28 02:07:57,050 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:57,050 WARN L246 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 02:07:57,050 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2024-11-28 02:07:57,079 INFO L143 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2024-11-28 02:07:57,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 166 places, 163 transitions, 381 flow [2024-11-28 02:07:57,258 INFO L124 PetriNetUnfolderBase]: 93/1046 cut-off events. [2024-11-28 02:07:57,259 INFO L125 PetriNetUnfolderBase]: For 110/110 co-relation queries the response was YES. [2024-11-28 02:07:57,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1152 conditions, 1046 events. 93/1046 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 4868 event pairs, 23 based on Foata normal form. 0/894 useless extension candidates. Maximal degree in co-relation 637. Up to 80 conditions per place. [2024-11-28 02:07:57,261 INFO L82 GeneralOperation]: Start removeDead. Operand has 166 places, 163 transitions, 381 flow [2024-11-28 02:07:57,266 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 166 places, 163 transitions, 381 flow [2024-11-28 02:07:57,267 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:07:57,267 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;@5e6eb36f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:07:57,267 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-11-28 02:07:57,272 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 02:07:57,273 INFO L124 PetriNetUnfolderBase]: 3/48 cut-off events. [2024-11-28 02:07:57,273 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 02:07:57,273 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:57,274 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] [2024-11-28 02:07:57,274 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-28 02:07:57,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:57,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1649981732, now seen corresponding path program 1 times [2024-11-28 02:07:57,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:57,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851248513] [2024-11-28 02:07:57,276 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:57,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:57,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:57,294 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 02:07:57,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:57,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851248513] [2024-11-28 02:07:57,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851248513] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:57,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:57,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:07:57,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951738731] [2024-11-28 02:07:57,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:57,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:07:57,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:57,296 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:07:57,297 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:07:57,322 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 163 [2024-11-28 02:07:57,323 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 163 transitions, 381 flow. Second operand has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 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 02:07:57,323 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:57,323 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 163 [2024-11-28 02:07:57,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand