./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 a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd871089-c821-431f-896f-397ad6f4a44b/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd871089-c821-431f-896f-397ad6f4a44b/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd871089-c821-431f-896f-397ad6f4a44b/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd871089-c821-431f-896f-397ad6f4a44b/bin/uautomizer-verify-jihMAELWvX/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_cd871089-c821-431f-896f-397ad6f4a44b/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd871089-c821-431f-896f-397ad6f4a44b/bin/uautomizer-verify-jihMAELWvX --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 0.2.5-dev-a016563 [2024-11-08 17:56:39,270 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:56:39,371 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd871089-c821-431f-896f-397ad6f4a44b/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-08 17:56:39,377 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:56:39,377 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:56:39,421 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:56:39,422 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:56:39,422 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:56:39,423 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:56:39,423 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:56:39,424 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:56:39,425 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:56:39,425 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:56:39,426 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:56:39,426 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:56:39,427 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:56:39,427 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:56:39,427 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:56:39,428 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:56:39,428 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:56:39,429 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:56:39,429 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:56:39,430 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-08 17:56:39,430 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:56:39,431 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 17:56:39,431 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:56:39,432 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:56:39,432 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:56:39,433 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:56:39,433 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:56:39,433 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:56:39,434 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:56:39,434 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:56:39,435 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:56:39,435 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:56:39,435 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:56:39,436 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:56:39,436 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:56:39,437 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:56:39,437 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:56:39,437 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:56:39,438 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd871089-c821-431f-896f-397ad6f4a44b/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd871089-c821-431f-896f-397ad6f4a44b/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e281184c6e6629633efbcea3a2283a3a54dcfd040e15fa389b71c86937ccbf2b [2024-11-08 17:56:39,779 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:56:39,815 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:56:39,820 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:56:39,823 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:56:39,823 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:56:39,825 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd871089-c821-431f-896f-397ad6f4a44b/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic.i Unable to find full path for "g++" [2024-11-08 17:56:42,131 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:56:42,586 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:56:42,587 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd871089-c821-431f-896f-397ad6f4a44b/sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic.i [2024-11-08 17:56:42,611 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd871089-c821-431f-896f-397ad6f4a44b/bin/uautomizer-verify-jihMAELWvX/data/156559924/8099e303a9c841d885dff91143a28409/FLAG034501a88 [2024-11-08 17:56:42,752 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd871089-c821-431f-896f-397ad6f4a44b/bin/uautomizer-verify-jihMAELWvX/data/156559924/8099e303a9c841d885dff91143a28409 [2024-11-08 17:56:42,755 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:56:42,757 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:56:42,759 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:56:42,760 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:56:42,769 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:56:42,770 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:56:42" (1/1) ... [2024-11-08 17:56:42,775 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@479aa6b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:56:42, skipping insertion in model container [2024-11-08 17:56:42,775 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:56:42" (1/1) ... [2024-11-08 17:56:42,850 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:56:43,544 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:56:43,568 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:56:43,644 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:56:43,737 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:56:43,738 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:56:43 WrapperNode [2024-11-08 17:56:43,739 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:56:43,740 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:56:43,740 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:56:43,741 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:56:43,752 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:56:43" (1/1) ... [2024-11-08 17:56:43,778 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:56:43" (1/1) ... [2024-11-08 17:56:43,818 INFO L138 Inliner]: procedures = 265, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 65 [2024-11-08 17:56:43,818 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:56:43,819 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:56:43,819 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:56:43,820 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:56:43,834 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:56:43" (1/1) ... [2024-11-08 17:56:43,834 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:56:43" (1/1) ... [2024-11-08 17:56:43,843 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:56:43" (1/1) ... [2024-11-08 17:56:43,846 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:56:43" (1/1) ... [2024-11-08 17:56:43,857 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:56:43" (1/1) ... [2024-11-08 17:56:43,861 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:56:43" (1/1) ... [2024-11-08 17:56:43,863 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:56:43" (1/1) ... [2024-11-08 17:56:43,864 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:56:43" (1/1) ... [2024-11-08 17:56:43,868 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:56:43,869 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:56:43,869 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:56:43,869 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:56:43,870 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:56:43" (1/1) ... [2024-11-08 17:56:43,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:56:43,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd871089-c821-431f-896f-397ad6f4a44b/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:56:43,920 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd871089-c821-431f-896f-397ad6f4a44b/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:56:43,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd871089-c821-431f-896f-397ad6f4a44b/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:56:43,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 17:56:43,973 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 17:56:43,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-08 17:56:43,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-08 17:56:43,977 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 17:56:43,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 17:56:43,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:56:43,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 17:56:43,978 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-11-08 17:56:43,978 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-11-08 17:56:43,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:56:43,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:56:43,980 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 17:56:44,206 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:56:44,210 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:56:44,534 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 17:56:44,535 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:56:44,572 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:56:44,572 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 17:56:44,573 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:56:44 BoogieIcfgContainer [2024-11-08 17:56:44,573 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:56:44,576 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:56:44,576 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:56:44,583 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:56:44,584 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:56:42" (1/3) ... [2024-11-08 17:56:44,585 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b4ebd91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:56:44, skipping insertion in model container [2024-11-08 17:56:44,585 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:56:43" (2/3) ... [2024-11-08 17:56:44,586 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b4ebd91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:56:44, skipping insertion in model container [2024-11-08 17:56:44,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:56:44" (3/3) ... [2024-11-08 17:56:44,588 INFO L112 eAbstractionObserver]: Analyzing ICFG thread-join-array-dynamic.i [2024-11-08 17:56:44,612 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:56:44,612 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-08 17:56:44,612 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 17:56:44,679 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-08 17:56:44,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 92 places, 93 transitions, 193 flow [2024-11-08 17:56:44,808 INFO L124 PetriNetUnfolderBase]: 6/129 cut-off events. [2024-11-08 17:56:44,808 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 17:56:44,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 134 conditions, 129 events. 6/129 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 216 event pairs, 0 based on Foata normal form. 0/113 useless extension candidates. Maximal degree in co-relation 64. Up to 4 conditions per place. [2024-11-08 17:56:44,814 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 93 transitions, 193 flow [2024-11-08 17:56:44,820 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 92 places, 93 transitions, 193 flow [2024-11-08 17:56:44,840 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:56:44,850 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;@5b86ef14, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:56:44,872 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-08 17:56:44,888 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 17:56:44,888 INFO L124 PetriNetUnfolderBase]: 3/48 cut-off events. [2024-11-08 17:56:44,888 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 17:56:44,888 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:56:44,889 INFO L204 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] [2024-11-08 17:56:44,890 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)] === [2024-11-08 17:56:44,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:56:44,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1412889626, now seen corresponding path program 1 times [2024-11-08 17:56:44,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:56:44,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527997920] [2024-11-08 17:56:44,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:56:44,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:56:45,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:56:45,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:56:45,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:56:45,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527997920] [2024-11-08 17:56:45,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527997920] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:56:45,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:56:45,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:56:45,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971688321] [2024-11-08 17:56:45,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:56:45,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:56:45,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:56:45,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:56:45,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:56:45,338 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 93 [2024-11-08 17:56:45,341 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 93 transitions, 193 flow. Second operand has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 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) [2024-11-08 17:56:45,342 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:56:45,342 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 93 [2024-11-08 17:56:45,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:56:45,454 INFO L124 PetriNetUnfolderBase]: 12/171 cut-off events. [2024-11-08 17:56:45,459 INFO L125 PetriNetUnfolderBase]: For 4/7 co-relation queries the response was YES. [2024-11-08 17:56:45,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 205 conditions, 171 events. 12/171 cut-off events. For 4/7 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 433 event pairs, 1 based on Foata normal form. 1/151 useless extension candidates. Maximal degree in co-relation 126. Up to 16 conditions per place. [2024-11-08 17:56:45,462 INFO L140 encePairwiseOnDemand]: 88/93 looper letters, 8 selfloop transitions, 3 changer transitions 2/96 dead transitions. [2024-11-08 17:56:45,462 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 96 transitions, 223 flow [2024-11-08 17:56:45,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:56:45,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:56:45,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 266 transitions. [2024-11-08 17:56:45,484 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.953405017921147 [2024-11-08 17:56:45,487 INFO L175 Difference]: Start difference. First operand has 92 places, 93 transitions, 193 flow. Second operand 3 states and 266 transitions. [2024-11-08 17:56:45,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 96 transitions, 223 flow [2024-11-08 17:56:45,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 96 transitions, 223 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 17:56:45,498 INFO L231 Difference]: Finished difference. Result has 96 places, 93 transitions, 211 flow [2024-11-08 17:56:45,505 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=211, PETRI_PLACES=96, PETRI_TRANSITIONS=93} [2024-11-08 17:56:45,511 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 4 predicate places. [2024-11-08 17:56:45,512 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 93 transitions, 211 flow [2024-11-08 17:56:45,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 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) [2024-11-08 17:56:45,512 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:56:45,513 INFO L204 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] [2024-11-08 17:56:45,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:56:45,513 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)] === [2024-11-08 17:56:45,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:56:45,514 INFO L85 PathProgramCache]: Analyzing trace with hash 784575455, now seen corresponding path program 1 times [2024-11-08 17:56:45,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:56:45,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137598023] [2024-11-08 17:56:45,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:56:45,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:56:45,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:56:45,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:56:45,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:56:45,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137598023] [2024-11-08 17:56:45,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137598023] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:56:45,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:56:45,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:56:45,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526318057] [2024-11-08 17:56:45,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:56:45,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:56:45,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:56:45,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:56:45,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:56:46,059 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 93 [2024-11-08 17:56:46,060 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 93 transitions, 211 flow. Second operand has 5 states, 5 states have (on average 76.6) internal successors, (383), 5 states have internal predecessors, (383), 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) [2024-11-08 17:56:46,063 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:56:46,064 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 93 [2024-11-08 17:56:46,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:56:46,214 INFO L124 PetriNetUnfolderBase]: 27/254 cut-off events. [2024-11-08 17:56:46,214 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-08 17:56:46,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 354 conditions, 254 events. 27/254 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 902 event pairs, 1 based on Foata normal form. 1/238 useless extension candidates. Maximal degree in co-relation 252. Up to 58 conditions per place. [2024-11-08 17:56:46,217 INFO L140 encePairwiseOnDemand]: 84/93 looper letters, 17 selfloop transitions, 2 changer transitions 6/101 dead transitions. [2024-11-08 17:56:46,217 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 101 transitions, 277 flow [2024-11-08 17:56:46,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:56:46,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:56:46,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 476 transitions. [2024-11-08 17:56:46,222 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8530465949820788 [2024-11-08 17:56:46,222 INFO L175 Difference]: Start difference. First operand has 96 places, 93 transitions, 211 flow. Second operand 6 states and 476 transitions. [2024-11-08 17:56:46,222 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 101 transitions, 277 flow [2024-11-08 17:56:46,224 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 101 transitions, 271 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 17:56:46,227 INFO L231 Difference]: Finished difference. Result has 102 places, 93 transitions, 225 flow [2024-11-08 17:56:46,227 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=225, PETRI_PLACES=102, PETRI_TRANSITIONS=93} [2024-11-08 17:56:46,228 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 10 predicate places. [2024-11-08 17:56:46,229 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 93 transitions, 225 flow [2024-11-08 17:56:46,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 76.6) internal successors, (383), 5 states have internal predecessors, (383), 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) [2024-11-08 17:56:46,230 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:56:46,230 INFO L204 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] [2024-11-08 17:56:46,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 17:56:46,231 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)] === [2024-11-08 17:56:46,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:56:46,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1159940498, now seen corresponding path program 1 times [2024-11-08 17:56:46,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:56:46,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599745475] [2024-11-08 17:56:46,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:56:46,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:56:46,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:56:46,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:56:46,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:56:46,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599745475] [2024-11-08 17:56:46,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599745475] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:56:46,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:56:46,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:56:46,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507635671] [2024-11-08 17:56:46,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:56:46,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:56:46,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:56:46,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:56:46,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:56:47,080 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 93 [2024-11-08 17:56:47,081 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 93 transitions, 225 flow. Second operand has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 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) [2024-11-08 17:56:47,081 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:56:47,081 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 93 [2024-11-08 17:56:47,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:56:47,223 INFO L124 PetriNetUnfolderBase]: 37/257 cut-off events. [2024-11-08 17:56:47,223 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-11-08 17:56:47,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 410 conditions, 257 events. 37/257 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1053 event pairs, 11 based on Foata normal form. 0/241 useless extension candidates. Maximal degree in co-relation 311. Up to 61 conditions per place. [2024-11-08 17:56:47,227 INFO L140 encePairwiseOnDemand]: 87/93 looper letters, 24 selfloop transitions, 5 changer transitions 0/100 dead transitions. [2024-11-08 17:56:47,227 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 100 transitions, 297 flow [2024-11-08 17:56:47,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:56:47,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:56:47,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 450 transitions. [2024-11-08 17:56:47,234 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8064516129032258 [2024-11-08 17:56:47,234 INFO L175 Difference]: Start difference. First operand has 102 places, 93 transitions, 225 flow. Second operand 6 states and 450 transitions. [2024-11-08 17:56:47,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 100 transitions, 297 flow [2024-11-08 17:56:47,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 100 transitions, 283 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-11-08 17:56:47,244 INFO L231 Difference]: Finished difference. Result has 98 places, 92 transitions, 219 flow [2024-11-08 17:56:47,245 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=209, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=219, PETRI_PLACES=98, PETRI_TRANSITIONS=92} [2024-11-08 17:56:47,246 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 6 predicate places. [2024-11-08 17:56:47,246 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 92 transitions, 219 flow [2024-11-08 17:56:47,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 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) [2024-11-08 17:56:47,248 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:56:47,249 INFO L204 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] [2024-11-08 17:56:47,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 17:56:47,249 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-08 17:56:47,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:56:47,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1129985790, now seen corresponding path program 1 times [2024-11-08 17:56:47,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:56:47,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179944177] [2024-11-08 17:56:47,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:56:47,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:56:47,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:56:47,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:56:47,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:56:47,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179944177] [2024-11-08 17:56:47,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179944177] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:56:47,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:56:47,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:56:47,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530706331] [2024-11-08 17:56:47,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:56:47,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:56:47,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:56:47,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:56:47,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:56:47,368 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 93 [2024-11-08 17:56:47,369 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 92 transitions, 219 flow. Second operand has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 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) [2024-11-08 17:56:47,369 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:56:47,369 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 93 [2024-11-08 17:56:47,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:56:47,423 INFO L124 PetriNetUnfolderBase]: 8/176 cut-off events. [2024-11-08 17:56:47,424 INFO L125 PetriNetUnfolderBase]: For 18/31 co-relation queries the response was YES. [2024-11-08 17:56:47,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 246 conditions, 176 events. 8/176 cut-off events. For 18/31 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 489 event pairs, 3 based on Foata normal form. 1/163 useless extension candidates. Maximal degree in co-relation 182. Up to 25 conditions per place. [2024-11-08 17:56:47,426 INFO L140 encePairwiseOnDemand]: 88/93 looper letters, 8 selfloop transitions, 4 changer transitions 3/95 dead transitions. [2024-11-08 17:56:47,426 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 95 transitions, 255 flow [2024-11-08 17:56:47,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:56:47,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:56:47,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 260 transitions. [2024-11-08 17:56:47,428 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.931899641577061 [2024-11-08 17:56:47,428 INFO L175 Difference]: Start difference. First operand has 98 places, 92 transitions, 219 flow. Second operand 3 states and 260 transitions. [2024-11-08 17:56:47,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 95 transitions, 255 flow [2024-11-08 17:56:47,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 95 transitions, 245 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 17:56:47,433 INFO L231 Difference]: Finished difference. Result has 97 places, 92 transitions, 231 flow [2024-11-08 17:56:47,435 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=209, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=231, PETRI_PLACES=97, PETRI_TRANSITIONS=92} [2024-11-08 17:56:47,436 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 5 predicate places. [2024-11-08 17:56:47,437 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 92 transitions, 231 flow [2024-11-08 17:56:47,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 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) [2024-11-08 17:56:47,438 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:56:47,438 INFO L204 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] [2024-11-08 17:56:47,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 17:56:47,439 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)] === [2024-11-08 17:56:47,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:56:47,441 INFO L85 PathProgramCache]: Analyzing trace with hash 720555243, now seen corresponding path program 1 times [2024-11-08 17:56:47,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:56:47,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131203587] [2024-11-08 17:56:47,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:56:47,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:56:47,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:56:47,956 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 17:56:47,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:56:47,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131203587] [2024-11-08 17:56:47,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131203587] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:56:47,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:56:47,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:56:47,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767340473] [2024-11-08 17:56:47,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:56:47,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:56:47,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:56:47,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:56:47,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:56:48,159 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 93 [2024-11-08 17:56:48,160 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 92 transitions, 231 flow. Second operand has 6 states, 6 states have (on average 74.16666666666667) internal successors, (445), 6 states have internal predecessors, (445), 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) [2024-11-08 17:56:48,160 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:56:48,160 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 93 [2024-11-08 17:56:48,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:56:48,254 INFO L124 PetriNetUnfolderBase]: 28/289 cut-off events. [2024-11-08 17:56:48,254 INFO L125 PetriNetUnfolderBase]: For 52/55 co-relation queries the response was YES. [2024-11-08 17:56:48,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 466 conditions, 289 events. 28/289 cut-off events. For 52/55 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1242 event pairs, 15 based on Foata normal form. 0/278 useless extension candidates. Maximal degree in co-relation 375. Up to 55 conditions per place. [2024-11-08 17:56:48,256 INFO L140 encePairwiseOnDemand]: 87/93 looper letters, 12 selfloop transitions, 0 changer transitions 20/99 dead transitions. [2024-11-08 17:56:48,257 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 99 transitions, 299 flow [2024-11-08 17:56:48,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:56:48,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:56:48,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 460 transitions. [2024-11-08 17:56:48,259 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8243727598566308 [2024-11-08 17:56:48,260 INFO L175 Difference]: Start difference. First operand has 97 places, 92 transitions, 231 flow. Second operand 6 states and 460 transitions. [2024-11-08 17:56:48,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 99 transitions, 299 flow [2024-11-08 17:56:48,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 99 transitions, 291 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 17:56:48,264 INFO L231 Difference]: Finished difference. Result has 99 places, 79 transitions, 194 flow [2024-11-08 17:56:48,265 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=221, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=194, PETRI_PLACES=99, PETRI_TRANSITIONS=79} [2024-11-08 17:56:48,266 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 7 predicate places. [2024-11-08 17:56:48,266 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 79 transitions, 194 flow [2024-11-08 17:56:48,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 74.16666666666667) internal successors, (445), 6 states have internal predecessors, (445), 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) [2024-11-08 17:56:48,267 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:56:48,267 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-11-08 17:56:48,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 17:56:48,268 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)] === [2024-11-08 17:56:48,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:56:48,269 INFO L85 PathProgramCache]: Analyzing trace with hash 711923915, now seen corresponding path program 1 times [2024-11-08 17:56:48,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:56:48,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644905383] [2024-11-08 17:56:48,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:56:48,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:56:48,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:56:48,298 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:56:48,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:56:48,345 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 17:56:48,345 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 17:56:48,347 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2024-11-08 17:56:48,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (4 of 6 remaining) [2024-11-08 17:56:48,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (3 of 6 remaining) [2024-11-08 17:56:48,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (2 of 6 remaining) [2024-11-08 17:56:48,354 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 6 remaining) [2024-11-08 17:56:48,357 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 6 remaining) [2024-11-08 17:56:48,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 17:56:48,358 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-08 17:56:48,365 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 17:56:48,365 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-08 17:56:48,398 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-08 17:56:48,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 111 places, 111 transitions, 238 flow [2024-11-08 17:56:48,443 INFO L124 PetriNetUnfolderBase]: 11/219 cut-off events. [2024-11-08 17:56:48,444 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-08 17:56:48,445 INFO L83 FinitePrefix]: Finished finitePrefix Result has 231 conditions, 219 events. 11/219 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 454 event pairs, 0 based on Foata normal form. 0/191 useless extension candidates. Maximal degree in co-relation 131. Up to 8 conditions per place. [2024-11-08 17:56:48,445 INFO L82 GeneralOperation]: Start removeDead. Operand has 111 places, 111 transitions, 238 flow [2024-11-08 17:56:48,448 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 111 places, 111 transitions, 238 flow [2024-11-08 17:56:48,449 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:56:48,453 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;@5b86ef14, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:56:48,453 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-08 17:56:48,463 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 17:56:48,464 INFO L124 PetriNetUnfolderBase]: 3/48 cut-off events. [2024-11-08 17:56:48,464 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 17:56:48,464 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:56:48,464 INFO L204 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] [2024-11-08 17:56:48,465 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)] === [2024-11-08 17:56:48,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:56:48,466 INFO L85 PathProgramCache]: Analyzing trace with hash 495724538, now seen corresponding path program 1 times [2024-11-08 17:56:48,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:56:48,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299505499] [2024-11-08 17:56:48,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:56:48,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:56:48,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:56:48,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:56:48,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:56:48,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299505499] [2024-11-08 17:56:48,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299505499] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:56:48,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:56:48,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:56:48,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559504833] [2024-11-08 17:56:48,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:56:48,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:56:48,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:56:48,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:56:48,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:56:48,543 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 111 [2024-11-08 17:56:48,544 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 111 transitions, 238 flow. Second operand has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:56:48,544 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:56:48,544 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 111 [2024-11-08 17:56:48,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:56:48,726 INFO L124 PetriNetUnfolderBase]: 129/751 cut-off events. [2024-11-08 17:56:48,727 INFO L125 PetriNetUnfolderBase]: For 70/96 co-relation queries the response was YES. [2024-11-08 17:56:48,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1023 conditions, 751 events. 129/751 cut-off events. For 70/96 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 4290 event pairs, 50 based on Foata normal form. 1/657 useless extension candidates. Maximal degree in co-relation 761. Up to 139 conditions per place. [2024-11-08 17:56:48,733 INFO L140 encePairwiseOnDemand]: 105/111 looper letters, 16 selfloop transitions, 4 changer transitions 1/117 dead transitions. [2024-11-08 17:56:48,733 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 117 transitions, 290 flow [2024-11-08 17:56:48,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:56:48,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:56:48,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 313 transitions. [2024-11-08 17:56:48,735 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.93993993993994 [2024-11-08 17:56:48,735 INFO L175 Difference]: Start difference. First operand has 111 places, 111 transitions, 238 flow. Second operand 3 states and 313 transitions. [2024-11-08 17:56:48,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 117 transitions, 290 flow [2024-11-08 17:56:48,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 117 transitions, 290 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 17:56:48,739 INFO L231 Difference]: Finished difference. Result has 115 places, 112 transitions, 264 flow [2024-11-08 17:56:48,740 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=264, PETRI_PLACES=115, PETRI_TRANSITIONS=112} [2024-11-08 17:56:48,740 INFO L277 CegarLoopForPetriNet]: 111 programPoint places, 4 predicate places. [2024-11-08 17:56:48,741 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 112 transitions, 264 flow [2024-11-08 17:56:48,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:56:48,741 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:56:48,741 INFO L204 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] [2024-11-08 17:56:48,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 17:56:48,742 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)] === [2024-11-08 17:56:48,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:56:48,742 INFO L85 PathProgramCache]: Analyzing trace with hash 2101486222, now seen corresponding path program 1 times [2024-11-08 17:56:48,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:56:48,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217825664] [2024-11-08 17:56:48,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:56:48,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:56:48,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:56:48,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:56:48,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:56:48,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217825664] [2024-11-08 17:56:48,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217825664] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:56:48,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:56:48,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:56:48,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807592253] [2024-11-08 17:56:48,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:56:48,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:56:48,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:56:48,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:56:48,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:56:49,011 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 111 [2024-11-08 17:56:49,013 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 112 transitions, 264 flow. Second operand has 5 states, 5 states have (on average 90.6) internal successors, (453), 5 states have internal predecessors, (453), 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) [2024-11-08 17:56:49,013 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:56:49,013 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 111 [2024-11-08 17:56:49,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:56:49,331 INFO L124 PetriNetUnfolderBase]: 220/1333 cut-off events. [2024-11-08 17:56:49,331 INFO L125 PetriNetUnfolderBase]: For 71/71 co-relation queries the response was YES. [2024-11-08 17:56:49,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1882 conditions, 1333 events. 220/1333 cut-off events. For 71/71 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 9699 event pairs, 84 based on Foata normal form. 1/1212 useless extension candidates. Maximal degree in co-relation 1274. Up to 347 conditions per place. [2024-11-08 17:56:49,342 INFO L140 encePairwiseOnDemand]: 102/111 looper letters, 22 selfloop transitions, 2 changer transitions 6/121 dead transitions. [2024-11-08 17:56:49,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 121 transitions, 342 flow [2024-11-08 17:56:49,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:56:49,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:56:49,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 565 transitions. [2024-11-08 17:56:49,345 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8483483483483484 [2024-11-08 17:56:49,345 INFO L175 Difference]: Start difference. First operand has 115 places, 112 transitions, 264 flow. Second operand 6 states and 565 transitions. [2024-11-08 17:56:49,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 121 transitions, 342 flow [2024-11-08 17:56:49,350 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 121 transitions, 334 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 17:56:49,353 INFO L231 Difference]: Finished difference. Result has 121 places, 113 transitions, 280 flow [2024-11-08 17:56:49,353 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=280, PETRI_PLACES=121, PETRI_TRANSITIONS=113} [2024-11-08 17:56:49,354 INFO L277 CegarLoopForPetriNet]: 111 programPoint places, 10 predicate places. [2024-11-08 17:56:49,354 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 113 transitions, 280 flow [2024-11-08 17:56:49,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 90.6) internal successors, (453), 5 states have internal predecessors, (453), 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) [2024-11-08 17:56:49,355 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:56:49,355 INFO L204 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] [2024-11-08 17:56:49,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 17:56:49,355 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)] === [2024-11-08 17:56:49,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:56:49,356 INFO L85 PathProgramCache]: Analyzing trace with hash 156970269, now seen corresponding path program 1 times [2024-11-08 17:56:49,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:56:49,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451397574] [2024-11-08 17:56:49,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:56:49,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:56:49,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:56:49,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:56:49,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:56:49,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451397574] [2024-11-08 17:56:49,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451397574] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:56:49,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:56:49,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:56:49,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274718980] [2024-11-08 17:56:49,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:56:49,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:56:49,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:56:49,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:56:49,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:56:49,944 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 111 [2024-11-08 17:56:49,945 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 113 transitions, 280 flow. Second operand has 6 states, 6 states have (on average 85.5) internal successors, (513), 6 states have internal predecessors, (513), 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) [2024-11-08 17:56:49,945 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:56:49,945 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 111 [2024-11-08 17:56:49,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:56:50,349 INFO L124 PetriNetUnfolderBase]: 329/1345 cut-off events. [2024-11-08 17:56:50,349 INFO L125 PetriNetUnfolderBase]: For 97/97 co-relation queries the response was YES. [2024-11-08 17:56:50,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2160 conditions, 1345 events. 329/1345 cut-off events. For 97/97 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 9999 event pairs, 130 based on Foata normal form. 0/1228 useless extension candidates. Maximal degree in co-relation 999. Up to 371 conditions per place. [2024-11-08 17:56:50,363 INFO L140 encePairwiseOnDemand]: 105/111 looper letters, 37 selfloop transitions, 5 changer transitions 0/128 dead transitions. [2024-11-08 17:56:50,363 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 128 transitions, 394 flow [2024-11-08 17:56:50,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:56:50,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:56:50,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 546 transitions. [2024-11-08 17:56:50,366 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8198198198198198 [2024-11-08 17:56:50,366 INFO L175 Difference]: Start difference. First operand has 121 places, 113 transitions, 280 flow. Second operand 6 states and 546 transitions. [2024-11-08 17:56:50,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 128 transitions, 394 flow [2024-11-08 17:56:50,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 128 transitions, 382 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-08 17:56:50,372 INFO L231 Difference]: Finished difference. Result has 118 places, 112 transitions, 276 flow [2024-11-08 17:56:50,373 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=113, 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=276, PETRI_PLACES=118, PETRI_TRANSITIONS=112} [2024-11-08 17:56:50,375 INFO L277 CegarLoopForPetriNet]: 111 programPoint places, 7 predicate places. [2024-11-08 17:56:50,376 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 112 transitions, 276 flow [2024-11-08 17:56:50,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 85.5) internal successors, (513), 6 states have internal predecessors, (513), 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) [2024-11-08 17:56:50,377 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:56:50,377 INFO L204 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] [2024-11-08 17:56:50,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 17:56:50,379 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-08 17:56:50,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:56:50,380 INFO L85 PathProgramCache]: Analyzing trace with hash -257255359, now seen corresponding path program 1 times [2024-11-08 17:56:50,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:56:50,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327796486] [2024-11-08 17:56:50,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:56:50,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:56:50,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:56:50,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:56:50,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:56:50,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327796486] [2024-11-08 17:56:50,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327796486] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:56:50,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:56:50,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:56:50,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001627971] [2024-11-08 17:56:50,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:56:50,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:56:50,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:56:50,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:56:50,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:56:50,463 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 111 [2024-11-08 17:56:50,464 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 112 transitions, 276 flow. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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) [2024-11-08 17:56:50,464 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:56:50,464 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 111 [2024-11-08 17:56:50,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:56:50,662 INFO L124 PetriNetUnfolderBase]: 176/1020 cut-off events. [2024-11-08 17:56:50,662 INFO L125 PetriNetUnfolderBase]: For 192/346 co-relation queries the response was YES. [2024-11-08 17:56:50,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1592 conditions, 1020 events. 176/1020 cut-off events. For 192/346 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 7305 event pairs, 88 based on Foata normal form. 3/898 useless extension candidates. Maximal degree in co-relation 1298. Up to 269 conditions per place. [2024-11-08 17:56:50,703 INFO L140 encePairwiseOnDemand]: 105/111 looper letters, 19 selfloop transitions, 7 changer transitions 0/121 dead transitions. [2024-11-08 17:56:50,703 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 121 transitions, 360 flow [2024-11-08 17:56:50,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:56:50,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:56:50,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 309 transitions. [2024-11-08 17:56:50,705 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9279279279279279 [2024-11-08 17:56:50,705 INFO L175 Difference]: Start difference. First operand has 118 places, 112 transitions, 276 flow. Second operand 3 states and 309 transitions. [2024-11-08 17:56:50,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 121 transitions, 360 flow [2024-11-08 17:56:50,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 121 transitions, 350 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 17:56:50,709 INFO L231 Difference]: Finished difference. Result has 117 places, 117 transitions, 322 flow [2024-11-08 17:56:50,710 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=322, PETRI_PLACES=117, PETRI_TRANSITIONS=117} [2024-11-08 17:56:50,711 INFO L277 CegarLoopForPetriNet]: 111 programPoint places, 6 predicate places. [2024-11-08 17:56:50,712 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 117 transitions, 322 flow [2024-11-08 17:56:50,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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) [2024-11-08 17:56:50,712 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:56:50,713 INFO L204 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] [2024-11-08 17:56:50,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 17:56:50,713 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)] === [2024-11-08 17:56:50,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:56:50,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1413458774, now seen corresponding path program 1 times [2024-11-08 17:56:50,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:56:50,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254116144] [2024-11-08 17:56:50,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:56:50,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:56:50,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:56:51,179 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 17:56:51,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:56:51,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254116144] [2024-11-08 17:56:51,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254116144] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:56:51,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:56:51,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:56:51,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554332789] [2024-11-08 17:56:51,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:56:51,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:56:51,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:56:51,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:56:51,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:56:51,356 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 111 [2024-11-08 17:56:51,357 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 117 transitions, 322 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) [2024-11-08 17:56:51,357 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:56:51,357 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 111 [2024-11-08 17:56:51,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:56:51,763 INFO L124 PetriNetUnfolderBase]: 366/1854 cut-off events. [2024-11-08 17:56:51,764 INFO L125 PetriNetUnfolderBase]: For 306/353 co-relation queries the response was YES. [2024-11-08 17:56:51,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3035 conditions, 1854 events. 366/1854 cut-off events. For 306/353 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 15602 event pairs, 180 based on Foata normal form. 3/1692 useless extension candidates. Maximal degree in co-relation 2437. Up to 362 conditions per place. [2024-11-08 17:56:51,781 INFO L140 encePairwiseOnDemand]: 105/111 looper letters, 34 selfloop transitions, 5 changer transitions 0/132 dead transitions. [2024-11-08 17:56:51,781 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 132 transitions, 430 flow [2024-11-08 17:56:51,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:56:51,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:56:51,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 556 transitions. [2024-11-08 17:56:51,783 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8348348348348348 [2024-11-08 17:56:51,784 INFO L175 Difference]: Start difference. First operand has 117 places, 117 transitions, 322 flow. Second operand 6 states and 556 transitions. [2024-11-08 17:56:51,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 132 transitions, 430 flow [2024-11-08 17:56:51,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 132 transitions, 416 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 17:56:51,790 INFO L231 Difference]: Finished difference. Result has 119 places, 116 transitions, 316 flow [2024-11-08 17:56:51,791 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=316, PETRI_PLACES=119, PETRI_TRANSITIONS=116} [2024-11-08 17:56:51,793 INFO L277 CegarLoopForPetriNet]: 111 programPoint places, 8 predicate places. [2024-11-08 17:56:51,793 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 116 transitions, 316 flow [2024-11-08 17:56:51,794 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) [2024-11-08 17:56:51,794 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:56:51,794 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:56:51,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 17:56:51,795 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-08 17:56:51,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:56:51,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1517999513, now seen corresponding path program 1 times [2024-11-08 17:56:51,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:56:51,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441749558] [2024-11-08 17:56:51,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:56:51,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:56:51,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:56:51,977 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:56:51,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:56:51,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441749558] [2024-11-08 17:56:51,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441749558] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:56:51,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1876122452] [2024-11-08 17:56:51,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:56:51,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:56:51,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd871089-c821-431f-896f-397ad6f4a44b/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:56:51,981 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd871089-c821-431f-896f-397ad6f4a44b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:56:51,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd871089-c821-431f-896f-397ad6f4a44b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 17:56:52,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:56:52,096 INFO L255 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 17:56:52,099 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:56:52,248 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:56:52,248 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:56:52,345 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:56:52,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1876122452] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:56:52,348 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:56:52,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2024-11-08 17:56:52,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430314985] [2024-11-08 17:56:52,349 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:56:52,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:56:52,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:56:52,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:56:52,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:56:52,673 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 111 [2024-11-08 17:56:52,674 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 116 transitions, 316 flow. Second operand has 9 states, 9 states have (on average 87.44444444444444) internal successors, (787), 9 states have internal predecessors, (787), 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) [2024-11-08 17:56:52,675 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:56:52,675 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 111 [2024-11-08 17:56:52,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:56:53,000 INFO L124 PetriNetUnfolderBase]: 214/1162 cut-off events. [2024-11-08 17:56:53,000 INFO L125 PetriNetUnfolderBase]: For 147/174 co-relation queries the response was YES. [2024-11-08 17:56:53,005 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1914 conditions, 1162 events. 214/1162 cut-off events. For 147/174 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 8046 event pairs, 64 based on Foata normal form. 0/1078 useless extension candidates. Maximal degree in co-relation 1204. Up to 190 conditions per place. [2024-11-08 17:56:53,010 INFO L140 encePairwiseOnDemand]: 99/111 looper letters, 31 selfloop transitions, 10 changer transitions 9/139 dead transitions. [2024-11-08 17:56:53,010 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 139 transitions, 466 flow [2024-11-08 17:56:53,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 17:56:53,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-08 17:56:53,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 733 transitions. [2024-11-08 17:56:53,013 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8254504504504504 [2024-11-08 17:56:53,013 INFO L175 Difference]: Start difference. First operand has 119 places, 116 transitions, 316 flow. Second operand 8 states and 733 transitions. [2024-11-08 17:56:53,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 139 transitions, 466 flow [2024-11-08 17:56:53,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 139 transitions, 454 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 17:56:53,018 INFO L231 Difference]: Finished difference. Result has 124 places, 116 transitions, 340 flow [2024-11-08 17:56:53,019 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=340, PETRI_PLACES=124, PETRI_TRANSITIONS=116} [2024-11-08 17:56:53,019 INFO L277 CegarLoopForPetriNet]: 111 programPoint places, 13 predicate places. [2024-11-08 17:56:53,020 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 116 transitions, 340 flow [2024-11-08 17:56:53,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 87.44444444444444) internal successors, (787), 9 states have internal predecessors, (787), 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) [2024-11-08 17:56:53,021 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:56:53,022 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-11-08 17:56:53,047 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd871089-c821-431f-896f-397ad6f4a44b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 17:56:53,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd871089-c821-431f-896f-397ad6f4a44b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-08 17:56:53,228 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-08 17:56:53,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:56:53,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1361887092, now seen corresponding path program 1 times [2024-11-08 17:56:53,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:56:53,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807621832] [2024-11-08 17:56:53,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:56:53,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:56:53,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:56:53,320 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 17:56:53,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:56:53,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807621832] [2024-11-08 17:56:53,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807621832] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:56:53,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:56:53,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:56:53,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632386689] [2024-11-08 17:56:53,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:56:53,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:56:53,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:56:53,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:56:53,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:56:53,346 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 111 [2024-11-08 17:56:53,347 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 116 transitions, 340 flow. Second operand has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:56:53,347 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:56:53,347 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 111 [2024-11-08 17:56:53,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:56:53,491 INFO L124 PetriNetUnfolderBase]: 58/648 cut-off events. [2024-11-08 17:56:53,491 INFO L125 PetriNetUnfolderBase]: For 236/361 co-relation queries the response was YES. [2024-11-08 17:56:53,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1089 conditions, 648 events. 58/648 cut-off events. For 236/361 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 3920 event pairs, 30 based on Foata normal form. 3/626 useless extension candidates. Maximal degree in co-relation 953. Up to 119 conditions per place. [2024-11-08 17:56:53,498 INFO L140 encePairwiseOnDemand]: 105/111 looper letters, 19 selfloop transitions, 7 changer transitions 1/123 dead transitions. [2024-11-08 17:56:53,498 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 123 transitions, 417 flow [2024-11-08 17:56:53,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:56:53,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:56:53,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 308 transitions. [2024-11-08 17:56:53,500 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.924924924924925 [2024-11-08 17:56:53,501 INFO L175 Difference]: Start difference. First operand has 124 places, 116 transitions, 340 flow. Second operand 3 states and 308 transitions. [2024-11-08 17:56:53,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 123 transitions, 417 flow [2024-11-08 17:56:53,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 123 transitions, 410 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-08 17:56:53,505 INFO L231 Difference]: Finished difference. Result has 125 places, 119 transitions, 383 flow [2024-11-08 17:56:53,505 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=333, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=383, PETRI_PLACES=125, PETRI_TRANSITIONS=119} [2024-11-08 17:56:53,507 INFO L277 CegarLoopForPetriNet]: 111 programPoint places, 14 predicate places. [2024-11-08 17:56:53,507 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 119 transitions, 383 flow [2024-11-08 17:56:53,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:56:53,508 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:56:53,508 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-11-08 17:56:53,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 17:56:53,509 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-08 17:56:53,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:56:53,509 INFO L85 PathProgramCache]: Analyzing trace with hash -737329408, now seen corresponding path program 1 times [2024-11-08 17:56:53,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:56:53,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777478226] [2024-11-08 17:56:53,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:56:53,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:56:53,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:56:53,664 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 17:56:53,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:56:53,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777478226] [2024-11-08 17:56:53,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777478226] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:56:53,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:56:53,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:56:53,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509172195] [2024-11-08 17:56:53,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:56:53,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:56:53,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:56:53,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:56:53,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:56:53,685 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 111 [2024-11-08 17:56:53,686 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 119 transitions, 383 flow. Second operand has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 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) [2024-11-08 17:56:53,686 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:56:53,686 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 111 [2024-11-08 17:56:53,687 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:56:53,799 INFO L124 PetriNetUnfolderBase]: 14/369 cut-off events. [2024-11-08 17:56:53,799 INFO L125 PetriNetUnfolderBase]: For 124/136 co-relation queries the response was YES. [2024-11-08 17:56:53,802 INFO L83 FinitePrefix]: Finished finitePrefix Result has 602 conditions, 369 events. 14/369 cut-off events. For 124/136 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1577 event pairs, 5 based on Foata normal form. 3/370 useless extension candidates. Maximal degree in co-relation 468. Up to 25 conditions per place. [2024-11-08 17:56:53,803 INFO L140 encePairwiseOnDemand]: 107/111 looper letters, 8 selfloop transitions, 4 changer transitions 5/120 dead transitions. [2024-11-08 17:56:53,803 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 120 transitions, 404 flow [2024-11-08 17:56:53,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:56:53,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:56:53,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 317 transitions. [2024-11-08 17:56:53,806 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9519519519519519 [2024-11-08 17:56:53,806 INFO L175 Difference]: Start difference. First operand has 125 places, 119 transitions, 383 flow. Second operand 3 states and 317 transitions. [2024-11-08 17:56:53,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 120 transitions, 404 flow [2024-11-08 17:56:53,809 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 120 transitions, 392 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-08 17:56:53,812 INFO L231 Difference]: Finished difference. Result has 125 places, 112 transitions, 338 flow [2024-11-08 17:56:53,812 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=351, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=338, PETRI_PLACES=125, PETRI_TRANSITIONS=112} [2024-11-08 17:56:53,813 INFO L277 CegarLoopForPetriNet]: 111 programPoint places, 14 predicate places. [2024-11-08 17:56:53,813 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 112 transitions, 338 flow [2024-11-08 17:56:53,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 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) [2024-11-08 17:56:53,814 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:56:53,815 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 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] [2024-11-08 17:56:53,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 17:56:53,815 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-08 17:56:53,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:56:53,816 INFO L85 PathProgramCache]: Analyzing trace with hash 391179152, now seen corresponding path program 1 times [2024-11-08 17:56:53,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:56:53,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441318674] [2024-11-08 17:56:53,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:56:53,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:56:53,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:56:53,857 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:56:53,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:56:53,894 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 17:56:53,894 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 17:56:53,895 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2024-11-08 17:56:53,895 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2024-11-08 17:56:53,895 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 7 remaining) [2024-11-08 17:56:53,896 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2024-11-08 17:56:53,896 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2024-11-08 17:56:53,896 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2024-11-08 17:56:53,897 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2024-11-08 17:56:53,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 17:56:53,897 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:56:53,898 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 17:56:53,898 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-08 17:56:53,933 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-08 17:56:53,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 130 places, 129 transitions, 285 flow [2024-11-08 17:56:53,999 INFO L124 PetriNetUnfolderBase]: 21/362 cut-off events. [2024-11-08 17:56:54,000 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-08 17:56:54,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 387 conditions, 362 events. 21/362 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 976 event pairs, 1 based on Foata normal form. 0/314 useless extension candidates. Maximal degree in co-relation 227. Up to 16 conditions per place. [2024-11-08 17:56:54,002 INFO L82 GeneralOperation]: Start removeDead. Operand has 130 places, 129 transitions, 285 flow [2024-11-08 17:56:54,005 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 130 places, 129 transitions, 285 flow [2024-11-08 17:56:54,007 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:56:54,008 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;@5b86ef14, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:56:54,008 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-08 17:56:54,014 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 17:56:54,015 INFO L124 PetriNetUnfolderBase]: 3/48 cut-off events. [2024-11-08 17:56:54,015 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 17:56:54,015 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:56:54,015 INFO L204 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] [2024-11-08 17:56:54,015 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)] === [2024-11-08 17:56:54,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:56:54,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1963132390, now seen corresponding path program 1 times [2024-11-08 17:56:54,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:56:54,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533096415] [2024-11-08 17:56:54,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:56:54,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:56:54,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:56:54,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:56:54,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:56:54,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533096415] [2024-11-08 17:56:54,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533096415] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:56:54,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:56:54,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:56:54,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834438900] [2024-11-08 17:56:54,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:56:54,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:56:54,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:56:54,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:56:54,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:56:54,074 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 129 [2024-11-08 17:56:54,075 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 129 transitions, 285 flow. Second operand has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 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) [2024-11-08 17:56:54,075 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:56:54,075 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 129 [2024-11-08 17:56:54,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:56:54,852 INFO L124 PetriNetUnfolderBase]: 1107/4094 cut-off events. [2024-11-08 17:56:54,852 INFO L125 PetriNetUnfolderBase]: For 368/492 co-relation queries the response was YES. [2024-11-08 17:56:54,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6009 conditions, 4094 events. 1107/4094 cut-off events. For 368/492 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 36467 event pairs, 542 based on Foata normal form. 1/3616 useless extension candidates. Maximal degree in co-relation 4704. Up to 1110 conditions per place. [2024-11-08 17:56:54,894 INFO L140 encePairwiseOnDemand]: 122/129 looper letters, 23 selfloop transitions, 5 changer transitions 1/138 dead transitions. [2024-11-08 17:56:54,895 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 138 transitions, 359 flow [2024-11-08 17:56:54,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:56:54,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:56:54,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 360 transitions. [2024-11-08 17:56:54,897 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9302325581395349 [2024-11-08 17:56:54,897 INFO L175 Difference]: Start difference. First operand has 130 places, 129 transitions, 285 flow. Second operand 3 states and 360 transitions. [2024-11-08 17:56:54,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 138 transitions, 359 flow [2024-11-08 17:56:54,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 138 transitions, 359 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 17:56:54,902 INFO L231 Difference]: Finished difference. Result has 134 places, 131 transitions, 319 flow [2024-11-08 17:56:54,903 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=283, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=319, PETRI_PLACES=134, PETRI_TRANSITIONS=131} [2024-11-08 17:56:54,904 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 4 predicate places. [2024-11-08 17:56:54,904 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 131 transitions, 319 flow [2024-11-08 17:56:54,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 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) [2024-11-08 17:56:54,905 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:56:54,905 INFO L204 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] [2024-11-08 17:56:54,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 17:56:54,905 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)] === [2024-11-08 17:56:54,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:56:54,906 INFO L85 PathProgramCache]: Analyzing trace with hash 962105551, now seen corresponding path program 1 times [2024-11-08 17:56:54,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:56:54,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924546719] [2024-11-08 17:56:54,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:56:54,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:56:54,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:56:54,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:56:54,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:56:54,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924546719] [2024-11-08 17:56:54,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924546719] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:56:54,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:56:54,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:56:54,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63968116] [2024-11-08 17:56:54,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:56:54,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:56:54,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:56:54,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:56:54,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:56:55,127 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 129 [2024-11-08 17:56:55,128 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 131 transitions, 319 flow. Second operand has 5 states, 5 states have (on average 104.6) internal successors, (523), 5 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:56:55,128 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:56:55,128 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 129 [2024-11-08 17:56:55,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:56:56,542 INFO L124 PetriNetUnfolderBase]: 1513/6890 cut-off events. [2024-11-08 17:56:56,542 INFO L125 PetriNetUnfolderBase]: For 408/416 co-relation queries the response was YES. [2024-11-08 17:56:56,582 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9984 conditions, 6890 events. 1513/6890 cut-off events. For 408/416 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 70148 event pairs, 845 based on Foata normal form. 1/6099 useless extension candidates. Maximal degree in co-relation 6339. Up to 1944 conditions per place. [2024-11-08 17:56:56,631 INFO L140 encePairwiseOnDemand]: 120/129 looper letters, 26 selfloop transitions, 2 changer transitions 6/140 dead transitions. [2024-11-08 17:56:56,632 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 140 transitions, 405 flow [2024-11-08 17:56:56,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:56:56,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:56:56,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 653 transitions. [2024-11-08 17:56:56,639 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8436692506459949 [2024-11-08 17:56:56,640 INFO L175 Difference]: Start difference. First operand has 134 places, 131 transitions, 319 flow. Second operand 6 states and 653 transitions. [2024-11-08 17:56:56,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 140 transitions, 405 flow [2024-11-08 17:56:56,659 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 140 transitions, 395 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 17:56:56,662 INFO L231 Difference]: Finished difference. Result has 140 places, 132 transitions, 333 flow [2024-11-08 17:56:56,662 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=309, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=333, PETRI_PLACES=140, PETRI_TRANSITIONS=132} [2024-11-08 17:56:56,663 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 10 predicate places. [2024-11-08 17:56:56,663 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 132 transitions, 333 flow [2024-11-08 17:56:56,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 104.6) internal successors, (523), 5 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:56:56,664 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:56:56,664 INFO L204 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] [2024-11-08 17:56:56,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 17:56:56,665 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)] === [2024-11-08 17:56:56,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:56:56,666 INFO L85 PathProgramCache]: Analyzing trace with hash -982410402, now seen corresponding path program 1 times [2024-11-08 17:56:56,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:56:56,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637955435] [2024-11-08 17:56:56,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:56:56,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:56:56,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:56:57,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:56:57,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:56:57,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637955435] [2024-11-08 17:56:57,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637955435] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:56:57,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:56:57,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:56:57,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401581112] [2024-11-08 17:56:57,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:56:57,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:56:57,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:56:57,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:56:57,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:56:57,297 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 129 [2024-11-08 17:56:57,298 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 132 transitions, 333 flow. Second operand has 6 states, 6 states have (on average 99.5) internal successors, (597), 6 states have internal predecessors, (597), 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) [2024-11-08 17:56:57,299 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:56:57,299 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 129 [2024-11-08 17:56:57,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:56:58,886 INFO L124 PetriNetUnfolderBase]: 2271/7141 cut-off events. [2024-11-08 17:56:58,887 INFO L125 PetriNetUnfolderBase]: For 538/538 co-relation queries the response was YES. [2024-11-08 17:56:58,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11603 conditions, 7141 events. 2271/7141 cut-off events. For 538/538 co-relation queries the response was YES. Maximal size of possible extension queue 333. Compared 69774 event pairs, 433 based on Foata normal form. 0/6340 useless extension candidates. Maximal degree in co-relation 11286. Up to 2246 conditions per place. [2024-11-08 17:56:58,962 INFO L140 encePairwiseOnDemand]: 123/129 looper letters, 49 selfloop transitions, 5 changer transitions 0/155 dead transitions. [2024-11-08 17:56:58,962 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 155 transitions, 487 flow [2024-11-08 17:56:58,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:56:58,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:56:58,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 642 transitions. [2024-11-08 17:56:58,965 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8294573643410853 [2024-11-08 17:56:58,965 INFO L175 Difference]: Start difference. First operand has 140 places, 132 transitions, 333 flow. Second operand 6 states and 642 transitions. [2024-11-08 17:56:58,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 155 transitions, 487 flow [2024-11-08 17:56:58,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 155 transitions, 475 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-08 17:56:58,980 INFO L231 Difference]: Finished difference. Result has 137 places, 131 transitions, 329 flow [2024-11-08 17:56:58,981 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=319, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=329, PETRI_PLACES=137, PETRI_TRANSITIONS=131} [2024-11-08 17:56:58,981 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 7 predicate places. [2024-11-08 17:56:58,982 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 131 transitions, 329 flow [2024-11-08 17:56:58,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 99.5) internal successors, (597), 6 states have internal predecessors, (597), 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) [2024-11-08 17:56:58,982 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:56:58,982 INFO L204 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] [2024-11-08 17:56:58,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 17:56:58,983 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-08 17:56:58,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:56:58,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1846602738, now seen corresponding path program 1 times [2024-11-08 17:56:58,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:56:58,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863089161] [2024-11-08 17:56:58,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:56:58,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:56:58,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:56:59,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:56:59,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:56:59,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863089161] [2024-11-08 17:56:59,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863089161] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:56:59,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:56:59,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:56:59,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443764208] [2024-11-08 17:56:59,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:56:59,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:56:59,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:56:59,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:56:59,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:56:59,051 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 129 [2024-11-08 17:56:59,051 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 131 transitions, 329 flow. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 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) [2024-11-08 17:56:59,051 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:56:59,051 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 129 [2024-11-08 17:56:59,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:57:00,281 INFO L124 PetriNetUnfolderBase]: 1818/7094 cut-off events. [2024-11-08 17:57:00,282 INFO L125 PetriNetUnfolderBase]: For 1649/2525 co-relation queries the response was YES. [2024-11-08 17:57:00,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11472 conditions, 7094 events. 1818/7094 cut-off events. For 1649/2525 co-relation queries the response was YES. Maximal size of possible extension queue 326. Compared 74200 event pairs, 852 based on Foata normal form. 13/6131 useless extension candidates. Maximal degree in co-relation 4538. Up to 2242 conditions per place. [2024-11-08 17:57:00,360 INFO L140 encePairwiseOnDemand]: 122/129 looper letters, 29 selfloop transitions, 9 changer transitions 0/146 dead transitions. [2024-11-08 17:57:00,360 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 146 transitions, 463 flow [2024-11-08 17:57:00,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:57:00,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:57:00,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 358 transitions. [2024-11-08 17:57:00,362 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9250645994832042 [2024-11-08 17:57:00,362 INFO L175 Difference]: Start difference. First operand has 137 places, 131 transitions, 329 flow. Second operand 3 states and 358 transitions. [2024-11-08 17:57:00,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 146 transitions, 463 flow [2024-11-08 17:57:00,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 146 transitions, 453 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 17:57:00,367 INFO L231 Difference]: Finished difference. Result has 136 places, 138 transitions, 395 flow [2024-11-08 17:57:00,367 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=319, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=395, PETRI_PLACES=136, PETRI_TRANSITIONS=138} [2024-11-08 17:57:00,368 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 6 predicate places. [2024-11-08 17:57:00,368 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 138 transitions, 395 flow [2024-11-08 17:57:00,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 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) [2024-11-08 17:57:00,369 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:57:00,369 INFO L204 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] [2024-11-08 17:57:00,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 17:57:00,369 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)] === [2024-11-08 17:57:00,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:57:00,370 INFO L85 PathProgramCache]: Analyzing trace with hash -958289989, now seen corresponding path program 1 times [2024-11-08 17:57:00,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:57:00,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969835589] [2024-11-08 17:57:00,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:57:00,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:57:00,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:57:00,854 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 17:57:00,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:57:00,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969835589] [2024-11-08 17:57:00,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969835589] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:57:00,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:57:00,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:57:00,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620803657] [2024-11-08 17:57:00,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:57:00,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:57:00,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:57:00,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:57:00,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:57:01,044 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 129 [2024-11-08 17:57:01,045 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 138 transitions, 395 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) [2024-11-08 17:57:01,046 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:57:01,046 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 129 [2024-11-08 17:57:01,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:57:02,831 INFO L124 PetriNetUnfolderBase]: 2900/10416 cut-off events. [2024-11-08 17:57:02,831 INFO L125 PetriNetUnfolderBase]: For 1681/2232 co-relation queries the response was YES. [2024-11-08 17:57:02,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17569 conditions, 10416 events. 2900/10416 cut-off events. For 1681/2232 co-relation queries the response was YES. Maximal size of possible extension queue 461. Compared 114900 event pairs, 1407 based on Foata normal form. 17/9255 useless extension candidates. Maximal degree in co-relation 13954. Up to 2157 conditions per place. [2024-11-08 17:57:02,948 INFO L140 encePairwiseOnDemand]: 123/129 looper letters, 46 selfloop transitions, 5 changer transitions 0/161 dead transitions. [2024-11-08 17:57:02,948 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 161 transitions, 543 flow [2024-11-08 17:57:02,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:57:02,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:57:02,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 652 transitions. [2024-11-08 17:57:02,951 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8423772609819121 [2024-11-08 17:57:02,952 INFO L175 Difference]: Start difference. First operand has 136 places, 138 transitions, 395 flow. Second operand 6 states and 652 transitions. [2024-11-08 17:57:02,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 161 transitions, 543 flow [2024-11-08 17:57:02,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 161 transitions, 525 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 17:57:02,970 INFO L231 Difference]: Finished difference. Result has 138 places, 137 transitions, 385 flow [2024-11-08 17:57:02,970 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=375, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=385, PETRI_PLACES=138, PETRI_TRANSITIONS=137} [2024-11-08 17:57:02,971 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 8 predicate places. [2024-11-08 17:57:02,971 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 137 transitions, 385 flow [2024-11-08 17:57:02,972 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) [2024-11-08 17:57:02,972 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:57:02,972 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:57:02,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 17:57:02,973 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-08 17:57:02,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:57:02,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1656456617, now seen corresponding path program 1 times [2024-11-08 17:57:02,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:57:02,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277254490] [2024-11-08 17:57:02,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:57:02,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:57:02,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:57:03,242 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:57:03,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:57:03,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277254490] [2024-11-08 17:57:03,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277254490] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:57:03,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2071182968] [2024-11-08 17:57:03,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:57:03,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:57:03,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd871089-c821-431f-896f-397ad6f4a44b/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:57:03,245 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd871089-c821-431f-896f-397ad6f4a44b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:57:03,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd871089-c821-431f-896f-397ad6f4a44b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 17:57:03,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:57:03,380 INFO L255 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 17:57:03,382 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:57:03,464 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:57:03,464 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:57:03,540 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:57:03,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2071182968] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:57:03,540 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:57:03,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2024-11-08 17:57:03,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952063199] [2024-11-08 17:57:03,541 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:57:03,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:57:03,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:57:03,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:57:03,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:57:03,780 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 129 [2024-11-08 17:57:03,782 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 137 transitions, 385 flow. Second operand has 9 states, 9 states have (on average 101.44444444444444) internal successors, (913), 9 states have internal predecessors, (913), 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) [2024-11-08 17:57:03,782 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:57:03,782 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 129 [2024-11-08 17:57:03,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:57:04,942 INFO L124 PetriNetUnfolderBase]: 1810/7229 cut-off events. [2024-11-08 17:57:04,942 INFO L125 PetriNetUnfolderBase]: For 1039/1296 co-relation queries the response was YES. [2024-11-08 17:57:04,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12197 conditions, 7229 events. 1810/7229 cut-off events. For 1039/1296 co-relation queries the response was YES. Maximal size of possible extension queue 240. Compared 73649 event pairs, 705 based on Foata normal form. 1/6505 useless extension candidates. Maximal degree in co-relation 6514. Up to 1225 conditions per place. [2024-11-08 17:57:05,000 INFO L140 encePairwiseOnDemand]: 117/129 looper letters, 52 selfloop transitions, 11 changer transitions 0/170 dead transitions. [2024-11-08 17:57:05,000 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 170 transitions, 588 flow [2024-11-08 17:57:05,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 17:57:05,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-08 17:57:05,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 858 transitions. [2024-11-08 17:57:05,005 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8313953488372093 [2024-11-08 17:57:05,005 INFO L175 Difference]: Start difference. First operand has 138 places, 137 transitions, 385 flow. Second operand 8 states and 858 transitions. [2024-11-08 17:57:05,005 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 170 transitions, 588 flow [2024-11-08 17:57:05,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 170 transitions, 576 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 17:57:05,015 INFO L231 Difference]: Finished difference. Result has 143 places, 139 transitions, 420 flow [2024-11-08 17:57:05,015 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=373, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=420, PETRI_PLACES=143, PETRI_TRANSITIONS=139} [2024-11-08 17:57:05,016 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 13 predicate places. [2024-11-08 17:57:05,016 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 139 transitions, 420 flow [2024-11-08 17:57:05,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 101.44444444444444) internal successors, (913), 9 states have internal predecessors, (913), 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) [2024-11-08 17:57:05,017 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:57:05,017 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-11-08 17:57:05,043 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd871089-c821-431f-896f-397ad6f4a44b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 17:57:05,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd871089-c821-431f-896f-397ad6f4a44b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:57:05,222 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-08 17:57:05,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:57:05,223 INFO L85 PathProgramCache]: Analyzing trace with hash 367052013, now seen corresponding path program 1 times [2024-11-08 17:57:05,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:57:05,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405031932] [2024-11-08 17:57:05,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:57:05,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:57:05,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:57:05,288 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 17:57:05,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:57:05,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405031932] [2024-11-08 17:57:05,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405031932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:57:05,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:57:05,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:57:05,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623240453] [2024-11-08 17:57:05,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:57:05,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:57:05,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:57:05,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:57:05,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:57:05,321 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 129 [2024-11-08 17:57:05,322 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 139 transitions, 420 flow. Second operand has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 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) [2024-11-08 17:57:05,322 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:57:05,322 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 129 [2024-11-08 17:57:05,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:57:06,387 INFO L124 PetriNetUnfolderBase]: 1091/4996 cut-off events. [2024-11-08 17:57:06,387 INFO L125 PetriNetUnfolderBase]: For 2508/2777 co-relation queries the response was YES. [2024-11-08 17:57:06,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9397 conditions, 4996 events. 1091/4996 cut-off events. For 2508/2777 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 52450 event pairs, 589 based on Foata normal form. 8/4629 useless extension candidates. Maximal degree in co-relation 8562. Up to 1450 conditions per place. [2024-11-08 17:57:06,458 INFO L140 encePairwiseOnDemand]: 122/129 looper letters, 31 selfloop transitions, 13 changer transitions 0/155 dead transitions. [2024-11-08 17:57:06,459 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 155 transitions, 581 flow [2024-11-08 17:57:06,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:57:06,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:57:06,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 357 transitions. [2024-11-08 17:57:06,461 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9224806201550387 [2024-11-08 17:57:06,462 INFO L175 Difference]: Start difference. First operand has 143 places, 139 transitions, 420 flow. Second operand 3 states and 357 transitions. [2024-11-08 17:57:06,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 155 transitions, 581 flow [2024-11-08 17:57:06,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 155 transitions, 574 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-08 17:57:06,473 INFO L231 Difference]: Finished difference. Result has 144 places, 148 transitions, 531 flow [2024-11-08 17:57:06,474 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=413, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=531, PETRI_PLACES=144, PETRI_TRANSITIONS=148} [2024-11-08 17:57:06,474 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 14 predicate places. [2024-11-08 17:57:06,475 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 148 transitions, 531 flow [2024-11-08 17:57:06,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 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) [2024-11-08 17:57:06,475 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:57:06,476 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-11-08 17:57:06,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-08 17:57:06,476 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-08 17:57:06,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:57:06,477 INFO L85 PathProgramCache]: Analyzing trace with hash 474870529, now seen corresponding path program 1 times [2024-11-08 17:57:06,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:57:06,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390973508] [2024-11-08 17:57:06,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:57:06,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:57:06,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:57:06,617 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 17:57:06,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:57:06,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390973508] [2024-11-08 17:57:06,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390973508] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:57:06,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:57:06,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:57:06,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110578946] [2024-11-08 17:57:06,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:57:06,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:57:06,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:57:06,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:57:06,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:57:06,635 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 129 [2024-11-08 17:57:06,636 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 148 transitions, 531 flow. Second operand has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 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) [2024-11-08 17:57:06,636 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:57:06,636 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 129 [2024-11-08 17:57:06,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:57:06,966 INFO L124 PetriNetUnfolderBase]: 130/1716 cut-off events. [2024-11-08 17:57:06,967 INFO L125 PetriNetUnfolderBase]: For 728/819 co-relation queries the response was YES. [2024-11-08 17:57:06,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2898 conditions, 1716 events. 130/1716 cut-off events. For 728/819 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 14101 event pairs, 20 based on Foata normal form. 21/1669 useless extension candidates. Maximal degree in co-relation 1150. Up to 142 conditions per place. [2024-11-08 17:57:06,980 INFO L140 encePairwiseOnDemand]: 123/129 looper letters, 12 selfloop transitions, 6 changer transitions 0/143 dead transitions. [2024-11-08 17:57:06,980 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 143 transitions, 504 flow [2024-11-08 17:57:06,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:57:06,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:57:06,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 366 transitions. [2024-11-08 17:57:06,983 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9457364341085271 [2024-11-08 17:57:06,984 INFO L175 Difference]: Start difference. First operand has 144 places, 148 transitions, 531 flow. Second operand 3 states and 366 transitions. [2024-11-08 17:57:06,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 143 transitions, 504 flow [2024-11-08 17:57:06,988 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 143 transitions, 490 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-08 17:57:06,990 INFO L231 Difference]: Finished difference. Result has 144 places, 138 transitions, 435 flow [2024-11-08 17:57:06,991 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=423, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=435, PETRI_PLACES=144, PETRI_TRANSITIONS=138} [2024-11-08 17:57:06,991 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 14 predicate places. [2024-11-08 17:57:06,992 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 138 transitions, 435 flow [2024-11-08 17:57:06,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 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) [2024-11-08 17:57:06,992 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:57:06,992 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 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] [2024-11-08 17:57:06,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-08 17:57:06,993 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-08 17:57:06,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:57:06,994 INFO L85 PathProgramCache]: Analyzing trace with hash 391774791, now seen corresponding path program 1 times [2024-11-08 17:57:06,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:57:06,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846991941] [2024-11-08 17:57:06,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:57:06,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:57:07,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:57:07,065 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-08 17:57:07,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:57:07,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846991941] [2024-11-08 17:57:07,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846991941] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:57:07,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:57:07,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:57:07,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519054573] [2024-11-08 17:57:07,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:57:07,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:57:07,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:57:07,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:57:07,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:57:07,094 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 129 [2024-11-08 17:57:07,095 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 138 transitions, 435 flow. Second operand has 3 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 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) [2024-11-08 17:57:07,095 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:57:07,095 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 129 [2024-11-08 17:57:07,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:57:07,440 INFO L124 PetriNetUnfolderBase]: 206/1882 cut-off events. [2024-11-08 17:57:07,440 INFO L125 PetriNetUnfolderBase]: For 1306/1371 co-relation queries the response was YES. [2024-11-08 17:57:07,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3599 conditions, 1882 events. 206/1882 cut-off events. For 1306/1371 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 16489 event pairs, 134 based on Foata normal form. 3/1792 useless extension candidates. Maximal degree in co-relation 2994. Up to 435 conditions per place. [2024-11-08 17:57:07,453 INFO L140 encePairwiseOnDemand]: 124/129 looper letters, 25 selfloop transitions, 5 changer transitions 0/143 dead transitions. [2024-11-08 17:57:07,453 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 143 transitions, 517 flow [2024-11-08 17:57:07,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:57:07,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:57:07,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 350 transitions. [2024-11-08 17:57:07,455 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9043927648578811 [2024-11-08 17:57:07,455 INFO L175 Difference]: Start difference. First operand has 144 places, 138 transitions, 435 flow. Second operand 3 states and 350 transitions. [2024-11-08 17:57:07,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 143 transitions, 517 flow [2024-11-08 17:57:07,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 143 transitions, 511 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 17:57:07,462 INFO L231 Difference]: Finished difference. Result has 147 places, 141 transitions, 469 flow [2024-11-08 17:57:07,462 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=429, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=469, PETRI_PLACES=147, PETRI_TRANSITIONS=141} [2024-11-08 17:57:07,463 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 17 predicate places. [2024-11-08 17:57:07,463 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 141 transitions, 469 flow [2024-11-08 17:57:07,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 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) [2024-11-08 17:57:07,463 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:57:07,464 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 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] [2024-11-08 17:57:07,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-08 17:57:07,464 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)] === [2024-11-08 17:57:07,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:57:07,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1854015030, now seen corresponding path program 1 times [2024-11-08 17:57:07,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:57:07,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848471475] [2024-11-08 17:57:07,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:57:07,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:57:07,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:57:07,506 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:57:07,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:57:07,536 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 17:57:07,536 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 17:57:07,536 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2024-11-08 17:57:07,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2024-11-08 17:57:07,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2024-11-08 17:57:07,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 8 remaining) [2024-11-08 17:57:07,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2024-11-08 17:57:07,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2024-11-08 17:57:07,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2024-11-08 17:57:07,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2024-11-08 17:57:07,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-08 17:57:07,538 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:57:07,538 WARN L244 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 17:57:07,538 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-08 17:57:07,567 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-08 17:57:07,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 149 places, 147 transitions, 334 flow [2024-11-08 17:57:07,673 INFO L124 PetriNetUnfolderBase]: 43/613 cut-off events. [2024-11-08 17:57:07,674 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2024-11-08 17:57:07,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 664 conditions, 613 events. 43/613 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2183 event pairs, 6 based on Foata normal form. 0/529 useless extension candidates. Maximal degree in co-relation 382. Up to 32 conditions per place. [2024-11-08 17:57:07,677 INFO L82 GeneralOperation]: Start removeDead. Operand has 149 places, 147 transitions, 334 flow [2024-11-08 17:57:07,681 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 149 places, 147 transitions, 334 flow [2024-11-08 17:57:07,682 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:57:07,682 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;@5b86ef14, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:57:07,683 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-08 17:57:07,686 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 17:57:07,686 INFO L124 PetriNetUnfolderBase]: 3/48 cut-off events. [2024-11-08 17:57:07,687 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 17:57:07,687 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:57:07,687 INFO L204 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] [2024-11-08 17:57:07,687 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)] === [2024-11-08 17:57:07,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:57:07,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1668713862, now seen corresponding path program 1 times [2024-11-08 17:57:07,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:57:07,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224405411] [2024-11-08 17:57:07,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:57:07,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:57:07,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:57:07,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:57:07,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:57:07,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224405411] [2024-11-08 17:57:07,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224405411] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:57:07,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:57:07,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:57:07,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582128105] [2024-11-08 17:57:07,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:57:07,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:57:07,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:57:07,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:57:07,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:57:07,744 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 147 [2024-11-08 17:57:07,744 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 147 transitions, 334 flow. Second operand has 3 states, 3 states have (on average 123.66666666666667) internal successors, (371), 3 states have internal predecessors, (371), 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) [2024-11-08 17:57:07,745 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:57:07,745 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 147 [2024-11-08 17:57:07,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:57:11,698 INFO L124 PetriNetUnfolderBase]: 8021/23859 cut-off events. [2024-11-08 17:57:11,698 INFO L125 PetriNetUnfolderBase]: For 2330/2768 co-relation queries the response was YES. [2024-11-08 17:57:11,806 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36209 conditions, 23859 events. 8021/23859 cut-off events. For 2330/2768 co-relation queries the response was YES. Maximal size of possible extension queue 762. Compared 272725 event pairs, 4292 based on Foata normal form. 1/21466 useless extension candidates. Maximal degree in co-relation 28835. Up to 7653 conditions per place. [2024-11-08 17:57:12,224 INFO L140 encePairwiseOnDemand]: 139/147 looper letters, 30 selfloop transitions, 6 changer transitions 1/159 dead transitions. [2024-11-08 17:57:12,224 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 159 transitions, 430 flow [2024-11-08 17:57:12,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:57:12,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:57:12,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 407 transitions. [2024-11-08 17:57:12,227 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9229024943310657 [2024-11-08 17:57:12,227 INFO L175 Difference]: Start difference. First operand has 149 places, 147 transitions, 334 flow. Second operand 3 states and 407 transitions. [2024-11-08 17:57:12,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 159 transitions, 430 flow [2024-11-08 17:57:12,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 159 transitions, 430 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 17:57:12,232 INFO L231 Difference]: Finished difference. Result has 153 places, 150 transitions, 376 flow [2024-11-08 17:57:12,232 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=376, PETRI_PLACES=153, PETRI_TRANSITIONS=150} [2024-11-08 17:57:12,233 INFO L277 CegarLoopForPetriNet]: 149 programPoint places, 4 predicate places. [2024-11-08 17:57:12,233 INFO L471 AbstractCegarLoop]: Abstraction has has 153 places, 150 transitions, 376 flow [2024-11-08 17:57:12,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 123.66666666666667) internal successors, (371), 3 states have internal predecessors, (371), 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) [2024-11-08 17:57:12,234 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:57:12,234 INFO L204 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] [2024-11-08 17:57:12,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-08 17:57:12,234 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)] === [2024-11-08 17:57:12,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:57:12,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1661400738, now seen corresponding path program 1 times [2024-11-08 17:57:12,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:57:12,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217611125] [2024-11-08 17:57:12,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:57:12,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:57:12,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:57:12,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:57:12,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:57:12,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217611125] [2024-11-08 17:57:12,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217611125] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:57:12,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:57:12,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:57:12,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235362584] [2024-11-08 17:57:12,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:57:12,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:57:12,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:57:12,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:57:12,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:57:12,465 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 147 [2024-11-08 17:57:12,466 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 150 transitions, 376 flow. Second operand has 5 states, 5 states have (on average 118.6) internal successors, (593), 5 states have internal predecessors, (593), 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) [2024-11-08 17:57:12,467 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:57:12,467 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 147 [2024-11-08 17:57:12,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:57:18,694 INFO L124 PetriNetUnfolderBase]: 10545/37205 cut-off events. [2024-11-08 17:57:18,695 INFO L125 PetriNetUnfolderBase]: For 2596/2684 co-relation queries the response was YES. [2024-11-08 17:57:18,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55766 conditions, 37205 events. 10545/37205 cut-off events. For 2596/2684 co-relation queries the response was YES. Maximal size of possible extension queue 951. Compared 474786 event pairs, 8381 based on Foata normal form. 1/32980 useless extension candidates. Maximal degree in co-relation 34774. Up to 12143 conditions per place. [2024-11-08 17:57:19,012 INFO L140 encePairwiseOnDemand]: 138/147 looper letters, 30 selfloop transitions, 2 changer transitions 6/159 dead transitions. [2024-11-08 17:57:19,012 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 159 transitions, 470 flow [2024-11-08 17:57:19,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:57:19,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:57:19,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 741 transitions. [2024-11-08 17:57:19,015 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8401360544217688 [2024-11-08 17:57:19,015 INFO L175 Difference]: Start difference. First operand has 153 places, 150 transitions, 376 flow. Second operand 6 states and 741 transitions. [2024-11-08 17:57:19,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 159 transitions, 470 flow [2024-11-08 17:57:19,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 159 transitions, 458 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 17:57:19,093 INFO L231 Difference]: Finished difference. Result has 159 places, 151 transitions, 388 flow [2024-11-08 17:57:19,093 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=388, PETRI_PLACES=159, PETRI_TRANSITIONS=151} [2024-11-08 17:57:19,093 INFO L277 CegarLoopForPetriNet]: 149 programPoint places, 10 predicate places. [2024-11-08 17:57:19,093 INFO L471 AbstractCegarLoop]: Abstraction has has 159 places, 151 transitions, 388 flow [2024-11-08 17:57:19,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 118.6) internal successors, (593), 5 states have internal predecessors, (593), 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) [2024-11-08 17:57:19,094 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:57:19,094 INFO L204 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] [2024-11-08 17:57:19,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-08 17:57:19,094 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)] === [2024-11-08 17:57:19,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:57:19,094 INFO L85 PathProgramCache]: Analyzing trace with hash -283115215, now seen corresponding path program 1 times [2024-11-08 17:57:19,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:57:19,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326002934] [2024-11-08 17:57:19,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:57:19,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:57:19,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:57:19,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:57:19,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:57:19,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326002934] [2024-11-08 17:57:19,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326002934] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:57:19,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:57:19,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:57:19,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770367543] [2024-11-08 17:57:19,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:57:19,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:57:19,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:57:19,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:57:19,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:57:19,625 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 147 [2024-11-08 17:57:19,626 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 151 transitions, 388 flow. Second operand has 6 states, 6 states have (on average 113.5) internal successors, (681), 6 states have internal predecessors, (681), 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) [2024-11-08 17:57:19,627 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:57:19,627 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 147 [2024-11-08 17:57:19,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:57:26,311 INFO L124 PetriNetUnfolderBase]: 13133/36322 cut-off events. [2024-11-08 17:57:26,311 INFO L125 PetriNetUnfolderBase]: For 3229/3233 co-relation queries the response was YES. [2024-11-08 17:57:26,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59357 conditions, 36322 events. 13133/36322 cut-off events. For 3229/3233 co-relation queries the response was YES. Maximal size of possible extension queue 1425. Compared 436397 event pairs, 6023 based on Foata normal form. 0/32287 useless extension candidates. Maximal degree in co-relation 27046. Up to 12817 conditions per place. [2024-11-08 17:57:26,653 INFO L140 encePairwiseOnDemand]: 141/147 looper letters, 61 selfloop transitions, 5 changer transitions 0/182 dead transitions. [2024-11-08 17:57:26,653 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 182 transitions, 582 flow [2024-11-08 17:57:26,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:57:26,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:57:26,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 738 transitions. [2024-11-08 17:57:26,656 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8367346938775511 [2024-11-08 17:57:26,656 INFO L175 Difference]: Start difference. First operand has 159 places, 151 transitions, 388 flow. Second operand 6 states and 738 transitions. [2024-11-08 17:57:26,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 182 transitions, 582 flow [2024-11-08 17:57:26,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 182 transitions, 570 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-08 17:57:26,699 INFO L231 Difference]: Finished difference. Result has 156 places, 150 transitions, 384 flow [2024-11-08 17:57:26,699 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=374, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=384, PETRI_PLACES=156, PETRI_TRANSITIONS=150} [2024-11-08 17:57:26,700 INFO L277 CegarLoopForPetriNet]: 149 programPoint places, 7 predicate places. [2024-11-08 17:57:26,700 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 150 transitions, 384 flow [2024-11-08 17:57:26,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 113.5) internal successors, (681), 6 states have internal predecessors, (681), 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) [2024-11-08 17:57:26,700 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:57:26,701 INFO L204 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] [2024-11-08 17:57:26,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-08 17:57:26,701 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-08 17:57:26,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:57:26,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1410657221, now seen corresponding path program 1 times [2024-11-08 17:57:26,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:57:26,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993155703] [2024-11-08 17:57:26,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:57:26,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:57:26,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:57:26,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:57:26,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:57:26,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993155703] [2024-11-08 17:57:26,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993155703] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:57:26,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:57:26,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:57:26,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555878791] [2024-11-08 17:57:26,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:57:26,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:57:26,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:57:26,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:57:26,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:57:26,775 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 147 [2024-11-08 17:57:26,776 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 150 transitions, 384 flow. Second operand has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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) [2024-11-08 17:57:26,776 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:57:26,777 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 147 [2024-11-08 17:57:26,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:57:33,825 INFO L124 PetriNetUnfolderBase]: 14037/43650 cut-off events. [2024-11-08 17:57:33,825 INFO L125 PetriNetUnfolderBase]: For 11269/15349 co-relation queries the response was YES. [2024-11-08 17:57:34,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73331 conditions, 43650 events. 14037/43650 cut-off events. For 11269/15349 co-relation queries the response was YES. Maximal size of possible extension queue 1500. Compared 564241 event pairs, 7220 based on Foata normal form. 42/38088 useless extension candidates. Maximal degree in co-relation 28423. Up to 15978 conditions per place. [2024-11-08 17:57:34,209 INFO L140 encePairwiseOnDemand]: 139/147 looper letters, 39 selfloop transitions, 11 changer transitions 0/171 dead transitions. [2024-11-08 17:57:34,209 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 171 transitions, 570 flow [2024-11-08 17:57:34,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:57:34,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:57:34,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 407 transitions. [2024-11-08 17:57:34,211 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9229024943310657 [2024-11-08 17:57:34,211 INFO L175 Difference]: Start difference. First operand has 156 places, 150 transitions, 384 flow. Second operand 3 states and 407 transitions. [2024-11-08 17:57:34,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 171 transitions, 570 flow [2024-11-08 17:57:34,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 171 transitions, 560 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 17:57:34,218 INFO L231 Difference]: Finished difference. Result has 155 places, 159 transitions, 470 flow [2024-11-08 17:57:34,218 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=374, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=470, PETRI_PLACES=155, PETRI_TRANSITIONS=159} [2024-11-08 17:57:34,219 INFO L277 CegarLoopForPetriNet]: 149 programPoint places, 6 predicate places. [2024-11-08 17:57:34,219 INFO L471 AbstractCegarLoop]: Abstraction has has 155 places, 159 transitions, 470 flow [2024-11-08 17:57:34,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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) [2024-11-08 17:57:34,219 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:57:34,219 INFO L204 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] [2024-11-08 17:57:34,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-08 17:57:34,220 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)] === [2024-11-08 17:57:34,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:57:34,220 INFO L85 PathProgramCache]: Analyzing trace with hash 2086061598, now seen corresponding path program 1 times [2024-11-08 17:57:34,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:57:34,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386975080] [2024-11-08 17:57:34,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:57:34,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:57:34,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:57:34,591 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 17:57:34,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:57:34,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386975080] [2024-11-08 17:57:34,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386975080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:57:34,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:57:34,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:57:34,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948383416] [2024-11-08 17:57:34,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:57:34,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:57:34,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:57:34,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:57:34,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:57:34,752 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 147 [2024-11-08 17:57:34,754 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 159 transitions, 470 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) [2024-11-08 17:57:34,754 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:57:34,754 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 147 [2024-11-08 17:57:34,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:57:42,173 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([608] 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][155], [59#L1023-5true, Black: 159#(= |ULTIMATE.start_main_~i~0#1| 0), 122#L1038-1true, 148#true, 134#L1024true, 149#true, 174#true, 146#true, Black: 176#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 179#true, 46#L1022-3true, Black: 154#(= |#race~data~0| 0), 144#true]) [2024-11-08 17:57:42,173 INFO L294 olderBase$Statistics]: this new event has 155 ancestors and is cut-off event [2024-11-08 17:57:42,173 INFO L297 olderBase$Statistics]: existing Event has 109 ancestors and is cut-off event [2024-11-08 17:57:42,173 INFO L297 olderBase$Statistics]: existing Event has 155 ancestors and is cut-off event [2024-11-08 17:57:42,173 INFO L297 olderBase$Statistics]: existing Event has 109 ancestors and is cut-off event [2024-11-08 17:57:42,372 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([656] L1023-4-->L1023-5: Formula: (= |v_threadThread4of4ForFork0_#t~nondet5_3| |v_#race~data~0_4|) InVars {threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|} OutVars{threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|, #race~data~0=|v_#race~data~0_4|} AuxVars[] AssignedVars[#race~data~0][188], [59#L1023-5true, Black: 159#(= |ULTIMATE.start_main_~i~0#1| 0), 122#L1038-1true, 145#true, 100#L1023-6true, 148#true, 174#true, 150#true, Black: 176#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 25#L1023-5true, 179#true, Black: 154#(= |#race~data~0| 0), 144#true]) [2024-11-08 17:57:42,373 INFO L294 olderBase$Statistics]: this new event has 159 ancestors and is cut-off event [2024-11-08 17:57:42,373 INFO L297 olderBase$Statistics]: existing Event has 159 ancestors and is cut-off event [2024-11-08 17:57:42,373 INFO L297 olderBase$Statistics]: existing Event has 159 ancestors and is cut-off event [2024-11-08 17:57:42,373 INFO L297 olderBase$Statistics]: existing Event has 159 ancestors and is cut-off event [2024-11-08 17:57:42,481 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([608] 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][155], [59#L1023-5true, Black: 159#(= |ULTIMATE.start_main_~i~0#1| 0), 122#L1038-1true, 148#true, 149#true, 174#true, 146#true, Black: 176#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 116#L1023-5true, 179#true, 22#threadErr0ASSERT_VIOLATIONDATA_RACEtrue, Black: 154#(= |#race~data~0| 0), 144#true]) [2024-11-08 17:57:42,481 INFO L294 olderBase$Statistics]: this new event has 159 ancestors and is cut-off event [2024-11-08 17:57:42,481 INFO L297 olderBase$Statistics]: existing Event has 113 ancestors and is cut-off event [2024-11-08 17:57:42,481 INFO L297 olderBase$Statistics]: existing Event has 113 ancestors and is cut-off event [2024-11-08 17:57:42,481 INFO L297 olderBase$Statistics]: existing Event has 159 ancestors and is cut-off event [2024-11-08 17:57:43,472 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([656] L1023-4-->L1023-5: Formula: (= |v_threadThread4of4ForFork0_#t~nondet5_3| |v_#race~data~0_4|) InVars {threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|} OutVars{threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|, #race~data~0=|v_#race~data~0_4|} AuxVars[] AssignedVars[#race~data~0][183], [59#L1023-5true, Black: 159#(= |ULTIMATE.start_main_~i~0#1| 0), 122#L1038-1true, 145#true, 148#true, 134#L1024true, 174#true, 150#true, Black: 176#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 25#L1023-5true, 179#true, Black: 154#(= |#race~data~0| 0), 144#true]) [2024-11-08 17:57:43,473 INFO L294 olderBase$Statistics]: this new event has 161 ancestors and is not cut-off event [2024-11-08 17:57:43,473 INFO L297 olderBase$Statistics]: existing Event has 161 ancestors and is not cut-off event [2024-11-08 17:57:43,473 INFO L297 olderBase$Statistics]: existing Event has 161 ancestors and is not cut-off event [2024-11-08 17:57:43,473 INFO L297 olderBase$Statistics]: existing Event has 161 ancestors and is not cut-off event [2024-11-08 17:57:44,298 INFO L124 PetriNetUnfolderBase]: 20129/58469 cut-off events. [2024-11-08 17:57:44,298 INFO L125 PetriNetUnfolderBase]: For 9185/12671 co-relation queries the response was YES. [2024-11-08 17:57:44,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101400 conditions, 58469 events. 20129/58469 cut-off events. For 9185/12671 co-relation queries the response was YES. Maximal size of possible extension queue 1975. Compared 765869 event pairs, 9682 based on Foata normal form. 139/51308 useless extension candidates. Maximal degree in co-relation 79842. Up to 12713 conditions per place. [2024-11-08 17:57:44,972 INFO L140 encePairwiseOnDemand]: 141/147 looper letters, 58 selfloop transitions, 5 changer transitions 0/190 dead transitions. [2024-11-08 17:57:44,973 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 190 transitions, 658 flow [2024-11-08 17:57:44,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:57:44,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:57:44,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 748 transitions. [2024-11-08 17:57:44,976 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8480725623582767 [2024-11-08 17:57:44,976 INFO L175 Difference]: Start difference. First operand has 155 places, 159 transitions, 470 flow. Second operand 6 states and 748 transitions. [2024-11-08 17:57:44,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 190 transitions, 658 flow [2024-11-08 17:57:45,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 190 transitions, 636 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 17:57:45,099 INFO L231 Difference]: Finished difference. Result has 157 places, 158 transitions, 456 flow [2024-11-08 17:57:45,100 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=446, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=456, PETRI_PLACES=157, PETRI_TRANSITIONS=158} [2024-11-08 17:57:45,100 INFO L277 CegarLoopForPetriNet]: 149 programPoint places, 8 predicate places. [2024-11-08 17:57:45,100 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 158 transitions, 456 flow [2024-11-08 17:57:45,101 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) [2024-11-08 17:57:45,101 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:57:45,101 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:57:45,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-08 17:57:45,102 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-08 17:57:45,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:57:45,102 INFO L85 PathProgramCache]: Analyzing trace with hash 734557591, now seen corresponding path program 1 times [2024-11-08 17:57:45,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:57:45,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511292572] [2024-11-08 17:57:45,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:57:45,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:57:45,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:57:45,220 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:57:45,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:57:45,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511292572] [2024-11-08 17:57:45,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511292572] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:57:45,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [932904477] [2024-11-08 17:57:45,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:57:45,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:57:45,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd871089-c821-431f-896f-397ad6f4a44b/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:57:45,224 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd871089-c821-431f-896f-397ad6f4a44b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:57:45,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd871089-c821-431f-896f-397ad6f4a44b/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 17:57:45,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:57:45,368 INFO L255 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 17:57:45,371 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:57:45,462 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:57:45,463 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:57:45,539 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:57:45,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [932904477] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:57:45,540 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:57:45,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2024-11-08 17:57:45,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830244868] [2024-11-08 17:57:45,541 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:57:45,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:57:45,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:57:45,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:57:45,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:57:46,165 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 147 [2024-11-08 17:57:46,167 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 158 transitions, 456 flow. Second operand has 9 states, 9 states have (on average 115.44444444444444) internal successors, (1039), 9 states have internal predecessors, (1039), 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) [2024-11-08 17:57:46,167 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:57:46,168 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 147 [2024-11-08 17:57:46,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:57:50,995 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([656] 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][197], [189#(<= 1 |ULTIMATE.start_main_~threads_total~0#1|), 59#L1023-5true, Black: 159#(= |ULTIMATE.start_main_~i~0#1| 0), 122#L1038-1true, 145#true, 100#L1023-6true, 148#true, 150#true, Black: 176#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 25#L1023-5true, 179#true, Black: 154#(= |#race~data~0| 0), 144#true]) [2024-11-08 17:57:50,995 INFO L294 olderBase$Statistics]: this new event has 159 ancestors and is cut-off event [2024-11-08 17:57:50,995 INFO L297 olderBase$Statistics]: existing Event has 159 ancestors and is cut-off event [2024-11-08 17:57:50,995 INFO L297 olderBase$Statistics]: existing Event has 159 ancestors and is cut-off event [2024-11-08 17:57:50,995 INFO L297 olderBase$Statistics]: existing Event has 159 ancestors and is cut-off event [2024-11-08 17:57:52,428 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([656] L1023-4-->L1023-5: Formula: (= |v_threadThread4of4ForFork0_#t~nondet5_3| |v_#race~data~0_4|) InVars {threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|} OutVars{threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|, #race~data~0=|v_#race~data~0_4|} AuxVars[] AssignedVars[#race~data~0][195], [189#(<= 1 |ULTIMATE.start_main_~threads_total~0#1|), 59#L1023-5true, Black: 159#(= |ULTIMATE.start_main_~i~0#1| 0), 145#true, 122#L1038-1true, 148#true, 134#L1024true, 150#true, Black: 176#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 25#L1023-5true, 179#true, Black: 154#(= |#race~data~0| 0), 144#true]) [2024-11-08 17:57:52,429 INFO L294 olderBase$Statistics]: this new event has 161 ancestors and is not cut-off event [2024-11-08 17:57:52,429 INFO L297 olderBase$Statistics]: existing Event has 161 ancestors and is not cut-off event [2024-11-08 17:57:52,429 INFO L297 olderBase$Statistics]: existing Event has 161 ancestors and is not cut-off event [2024-11-08 17:57:52,429 INFO L297 olderBase$Statistics]: existing Event has 161 ancestors and is not cut-off event [2024-11-08 17:57:53,466 INFO L124 PetriNetUnfolderBase]: 13395/42458 cut-off events. [2024-11-08 17:57:53,467 INFO L125 PetriNetUnfolderBase]: For 6410/8371 co-relation queries the response was YES. [2024-11-08 17:57:53,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73514 conditions, 42458 events. 13395/42458 cut-off events. For 6410/8371 co-relation queries the response was YES. Maximal size of possible extension queue 1172. Compared 539383 event pairs, 5345 based on Foata normal form. 15/37100 useless extension candidates. Maximal degree in co-relation 37152. Up to 7302 conditions per place.