./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_24-sound_lock_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a64c04c3-516b-46ae-b03f-e614ff02a072/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a64c04c3-516b-46ae-b03f-e614ff02a072/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a64c04c3-516b-46ae-b03f-e614ff02a072/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a64c04c3-516b-46ae-b03f-e614ff02a072/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_24-sound_lock_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a64c04c3-516b-46ae-b03f-e614ff02a072/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a64c04c3-516b-46ae-b03f-e614ff02a072/bin/uautomizer-verify-4GaUIPS5ZU --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 1eea0d699fc30cae440905f5eeea19b8e9e5d0b5cc249e9ffded8d356549b279 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:13:08,561 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:13:08,672 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a64c04c3-516b-46ae-b03f-e614ff02a072/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 22:13:08,678 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:13:08,679 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:13:08,716 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:13:08,719 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:13:08,719 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:13:08,720 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:13:08,721 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:13:08,721 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:13:08,722 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:13:08,722 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:13:08,724 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:13:08,725 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:13:08,725 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:13:08,726 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:13:08,726 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:13:08,726 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:13:08,726 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:13:08,727 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:13:08,730 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:13:08,731 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 22:13:08,731 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:13:08,731 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:13:08,732 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:13:08,732 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:13:08,732 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:13:08,733 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:13:08,733 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:13:08,734 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:13:08,734 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:13:08,735 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:13:08,735 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:13:08,735 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:13:08,735 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:13:08,736 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:13:08,736 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:13:08,736 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:13:08,736 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:13:08,737 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:13:08,737 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_a64c04c3-516b-46ae-b03f-e614ff02a072/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a64c04c3-516b-46ae-b03f-e614ff02a072/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1eea0d699fc30cae440905f5eeea19b8e9e5d0b5cc249e9ffded8d356549b279 [2024-10-31 22:13:09,038 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:13:09,067 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:13:09,070 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:13:09,071 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:13:09,072 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:13:09,073 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a64c04c3-516b-46ae-b03f-e614ff02a072/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/goblint-regression/28-race_reach_24-sound_lock_racing.i Unable to find full path for "g++" [2024-10-31 22:13:11,045 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:13:11,352 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:13:11,352 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a64c04c3-516b-46ae-b03f-e614ff02a072/sv-benchmarks/c/goblint-regression/28-race_reach_24-sound_lock_racing.i [2024-10-31 22:13:11,373 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a64c04c3-516b-46ae-b03f-e614ff02a072/bin/uautomizer-verify-4GaUIPS5ZU/data/4b76d7544/f3a8085080aa4198bd40ac3adf0f9cc4/FLAGbe117ff3f [2024-10-31 22:13:11,617 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a64c04c3-516b-46ae-b03f-e614ff02a072/bin/uautomizer-verify-4GaUIPS5ZU/data/4b76d7544/f3a8085080aa4198bd40ac3adf0f9cc4 [2024-10-31 22:13:11,620 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:13:11,622 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:13:11,624 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:13:11,624 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:13:11,630 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:13:11,631 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:13:11" (1/1) ... [2024-10-31 22:13:11,632 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3233f168 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:11, skipping insertion in model container [2024-10-31 22:13:11,633 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:13:11" (1/1) ... [2024-10-31 22:13:11,696 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:13:12,193 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:13:12,222 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:13:12,285 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:13:12,339 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:13:12,340 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:12 WrapperNode [2024-10-31 22:13:12,341 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:13:12,342 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:13:12,342 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:13:12,342 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:13:12,351 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:12" (1/1) ... [2024-10-31 22:13:12,371 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:12" (1/1) ... [2024-10-31 22:13:12,409 INFO L138 Inliner]: procedures = 171, calls = 42, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 105 [2024-10-31 22:13:12,409 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:13:12,410 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:13:12,411 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:13:12,411 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:13:12,421 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:12" (1/1) ... [2024-10-31 22:13:12,422 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:12" (1/1) ... [2024-10-31 22:13:12,426 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:12" (1/1) ... [2024-10-31 22:13:12,429 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:12" (1/1) ... [2024-10-31 22:13:12,440 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:12" (1/1) ... [2024-10-31 22:13:12,449 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:12" (1/1) ... [2024-10-31 22:13:12,455 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:12" (1/1) ... [2024-10-31 22:13:12,456 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:12" (1/1) ... [2024-10-31 22:13:12,459 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:13:12,463 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:13:12,467 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:13:12,467 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:13:12,468 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:12" (1/1) ... [2024-10-31 22:13:12,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:13:12,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a64c04c3-516b-46ae-b03f-e614ff02a072/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:13:12,509 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a64c04c3-516b-46ae-b03f-e614ff02a072/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:13:12,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a64c04c3-516b-46ae-b03f-e614ff02a072/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:13:12,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-31 22:13:12,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-31 22:13:12,549 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-31 22:13:12,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:13:12,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 22:13:12,549 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-31 22:13:12,549 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-31 22:13:12,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:13:12,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 22:13:12,550 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-31 22:13:12,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:13:12,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:13:12,552 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:13:12,827 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:13:12,829 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:13:13,144 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:13:13,144 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:13:13,190 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:13:13,191 INFO L316 CfgBuilder]: Removed 10 assume(true) statements. [2024-10-31 22:13:13,191 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:13:13 BoogieIcfgContainer [2024-10-31 22:13:13,192 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:13:13,194 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:13:13,194 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:13:13,198 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:13:13,198 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:13:11" (1/3) ... [2024-10-31 22:13:13,199 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70f6fffd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:13:13, skipping insertion in model container [2024-10-31 22:13:13,199 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:12" (2/3) ... [2024-10-31 22:13:13,200 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70f6fffd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:13:13, skipping insertion in model container [2024-10-31 22:13:13,200 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:13:13" (3/3) ... [2024-10-31 22:13:13,202 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_24-sound_lock_racing.i [2024-10-31 22:13:13,219 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:13:13,219 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2024-10-31 22:13:13,219 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:13:13,302 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-31 22:13:13,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 144 places, 155 transitions, 317 flow [2024-10-31 22:13:13,425 INFO L124 PetriNetUnfolderBase]: 20/214 cut-off events. [2024-10-31 22:13:13,426 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:13:13,432 INFO L83 FinitePrefix]: Finished finitePrefix Result has 219 conditions, 214 events. 20/214 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 621 event pairs, 0 based on Foata normal form. 0/181 useless extension candidates. Maximal degree in co-relation 109. Up to 4 conditions per place. [2024-10-31 22:13:13,433 INFO L82 GeneralOperation]: Start removeDead. Operand has 144 places, 155 transitions, 317 flow [2024-10-31 22:13:13,438 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 144 places, 155 transitions, 317 flow [2024-10-31 22:13:13,447 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:13:13,456 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;@230fa62b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:13:13,456 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-10-31 22:13:13,483 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:13:13,483 INFO L124 PetriNetUnfolderBase]: 3/61 cut-off events. [2024-10-31 22:13:13,483 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:13:13,484 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:13:13,484 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] [2024-10-31 22:13:13,485 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-10-31 22:13:13,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:13,493 INFO L85 PathProgramCache]: Analyzing trace with hash -778459379, now seen corresponding path program 1 times [2024-10-31 22:13:13,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:13,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245157963] [2024-10-31 22:13:13,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:13,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:13,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:14,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:14,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:14,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245157963] [2024-10-31 22:13:14,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245157963] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:13:14,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:13:14,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:13:14,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876147134] [2024-10-31 22:13:14,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:13:14,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:13:14,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:14,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:13:14,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:13:14,150 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 155 [2024-10-31 22:13:14,153 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 155 transitions, 317 flow. Second operand has 3 states, 3 states have (on average 126.0) internal successors, (378), 3 states have internal predecessors, (378), 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) [2024-10-31 22:13:14,154 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:13:14,154 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 155 [2024-10-31 22:13:14,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:13:14,367 INFO L124 PetriNetUnfolderBase]: 49/571 cut-off events. [2024-10-31 22:13:14,367 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-31 22:13:14,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 692 conditions, 571 events. 49/571 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2733 event pairs, 35 based on Foata normal form. 63/577 useless extension candidates. Maximal degree in co-relation 607. Up to 108 conditions per place. [2024-10-31 22:13:14,374 INFO L140 encePairwiseOnDemand]: 140/155 looper letters, 22 selfloop transitions, 2 changer transitions 0/147 dead transitions. [2024-10-31 22:13:14,374 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 147 transitions, 349 flow [2024-10-31 22:13:14,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:13:14,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:13:14,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 416 transitions. [2024-10-31 22:13:14,394 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8946236559139785 [2024-10-31 22:13:14,398 INFO L175 Difference]: Start difference. First operand has 144 places, 155 transitions, 317 flow. Second operand 3 states and 416 transitions. [2024-10-31 22:13:14,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 147 transitions, 349 flow [2024-10-31 22:13:14,405 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 147 transitions, 349 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:13:14,410 INFO L231 Difference]: Finished difference. Result has 145 places, 141 transitions, 297 flow [2024-10-31 22:13:14,414 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=289, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=297, PETRI_PLACES=145, PETRI_TRANSITIONS=141} [2024-10-31 22:13:14,418 INFO L277 CegarLoopForPetriNet]: 144 programPoint places, 1 predicate places. [2024-10-31 22:13:14,418 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 141 transitions, 297 flow [2024-10-31 22:13:14,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.0) internal successors, (378), 3 states have internal predecessors, (378), 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) [2024-10-31 22:13:14,419 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:13:14,419 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] [2024-10-31 22:13:14,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:13:14,420 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-10-31 22:13:14,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:14,421 INFO L85 PathProgramCache]: Analyzing trace with hash 235746507, now seen corresponding path program 1 times [2024-10-31 22:13:14,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:14,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096655326] [2024-10-31 22:13:14,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:14,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:14,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:15,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:15,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:15,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096655326] [2024-10-31 22:13:15,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096655326] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:13:15,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:13:15,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:13:15,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756609115] [2024-10-31 22:13:15,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:13:15,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:13:15,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:15,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:13:15,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:13:15,405 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 155 [2024-10-31 22:13:15,407 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 141 transitions, 297 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) [2024-10-31 22:13:15,407 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:13:15,407 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 155 [2024-10-31 22:13:15,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:13:15,679 INFO L124 PetriNetUnfolderBase]: 109/671 cut-off events. [2024-10-31 22:13:15,679 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-10-31 22:13:15,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 958 conditions, 671 events. 109/671 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 3789 event pairs, 7 based on Foata normal form. 0/618 useless extension candidates. Maximal degree in co-relation 859. Up to 181 conditions per place. [2024-10-31 22:13:15,687 INFO L140 encePairwiseOnDemand]: 149/155 looper letters, 48 selfloop transitions, 5 changer transitions 0/164 dead transitions. [2024-10-31 22:13:15,688 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 164 transitions, 449 flow [2024-10-31 22:13:15,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:13:15,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:13:15,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 726 transitions. [2024-10-31 22:13:15,691 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7806451612903226 [2024-10-31 22:13:15,696 INFO L175 Difference]: Start difference. First operand has 145 places, 141 transitions, 297 flow. Second operand 6 states and 726 transitions. [2024-10-31 22:13:15,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 164 transitions, 449 flow [2024-10-31 22:13:15,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 164 transitions, 445 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:13:15,702 INFO L231 Difference]: Finished difference. Result has 147 places, 140 transitions, 301 flow [2024-10-31 22:13:15,703 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=291, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=301, PETRI_PLACES=147, PETRI_TRANSITIONS=140} [2024-10-31 22:13:15,704 INFO L277 CegarLoopForPetriNet]: 144 programPoint places, 3 predicate places. [2024-10-31 22:13:15,704 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 140 transitions, 301 flow [2024-10-31 22:13:15,709 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) [2024-10-31 22:13:15,709 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:13:15,709 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] [2024-10-31 22:13:15,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:13:15,710 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-10-31 22:13:15,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:15,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1801427432, now seen corresponding path program 1 times [2024-10-31 22:13:15,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:15,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139511983] [2024-10-31 22:13:15,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:15,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:15,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:15,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:15,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:15,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139511983] [2024-10-31 22:13:15,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139511983] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:13:15,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:13:15,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:13:15,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989517371] [2024-10-31 22:13:15,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:13:15,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:13:15,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:15,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:13:15,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:13:15,839 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 155 [2024-10-31 22:13:15,840 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 140 transitions, 301 flow. Second operand has 3 states, 3 states have (on average 120.66666666666667) internal successors, (362), 3 states have internal predecessors, (362), 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) [2024-10-31 22:13:15,840 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:13:15,840 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 155 [2024-10-31 22:13:15,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:13:16,011 INFO L124 PetriNetUnfolderBase]: 92/803 cut-off events. [2024-10-31 22:13:16,012 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-10-31 22:13:16,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1039 conditions, 803 events. 92/803 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 4684 event pairs, 30 based on Foata normal form. 0/733 useless extension candidates. Maximal degree in co-relation 962. Up to 125 conditions per place. [2024-10-31 22:13:16,017 INFO L140 encePairwiseOnDemand]: 146/155 looper letters, 30 selfloop transitions, 6 changer transitions 0/153 dead transitions. [2024-10-31 22:13:16,017 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 153 transitions, 402 flow [2024-10-31 22:13:16,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:13:16,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:13:16,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 396 transitions. [2024-10-31 22:13:16,019 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8516129032258064 [2024-10-31 22:13:16,019 INFO L175 Difference]: Start difference. First operand has 147 places, 140 transitions, 301 flow. Second operand 3 states and 396 transitions. [2024-10-31 22:13:16,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 153 transitions, 402 flow [2024-10-31 22:13:16,021 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 153 transitions, 392 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:13:16,024 INFO L231 Difference]: Finished difference. Result has 144 places, 142 transitions, 329 flow [2024-10-31 22:13:16,024 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=287, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=329, PETRI_PLACES=144, PETRI_TRANSITIONS=142} [2024-10-31 22:13:16,025 INFO L277 CegarLoopForPetriNet]: 144 programPoint places, 0 predicate places. [2024-10-31 22:13:16,025 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 142 transitions, 329 flow [2024-10-31 22:13:16,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.66666666666667) internal successors, (362), 3 states have internal predecessors, (362), 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) [2024-10-31 22:13:16,026 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:13:16,026 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, 1, 1] [2024-10-31 22:13:16,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:13:16,027 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-10-31 22:13:16,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:16,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1816965716, now seen corresponding path program 1 times [2024-10-31 22:13:16,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:16,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339983153] [2024-10-31 22:13:16,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:16,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:16,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:16,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:16,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:16,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339983153] [2024-10-31 22:13:16,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339983153] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:13:16,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:13:16,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:13:16,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371993573] [2024-10-31 22:13:16,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:13:16,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:13:16,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:16,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:13:16,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:13:16,137 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 155 [2024-10-31 22:13:16,138 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 142 transitions, 329 flow. Second operand has 3 states, 3 states have (on average 123.33333333333333) internal successors, (370), 3 states have internal predecessors, (370), 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) [2024-10-31 22:13:16,139 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:13:16,139 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 155 [2024-10-31 22:13:16,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:13:16,318 INFO L124 PetriNetUnfolderBase]: 95/805 cut-off events. [2024-10-31 22:13:16,318 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2024-10-31 22:13:16,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1139 conditions, 805 events. 95/805 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 4778 event pairs, 60 based on Foata normal form. 0/736 useless extension candidates. Maximal degree in co-relation 1062. Up to 189 conditions per place. [2024-10-31 22:13:16,322 INFO L140 encePairwiseOnDemand]: 150/155 looper letters, 27 selfloop transitions, 4 changer transitions 0/149 dead transitions. [2024-10-31 22:13:16,322 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 149 transitions, 409 flow [2024-10-31 22:13:16,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:13:16,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:13:16,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 392 transitions. [2024-10-31 22:13:16,325 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.843010752688172 [2024-10-31 22:13:16,325 INFO L175 Difference]: Start difference. First operand has 144 places, 142 transitions, 329 flow. Second operand 3 states and 392 transitions. [2024-10-31 22:13:16,325 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 149 transitions, 409 flow [2024-10-31 22:13:16,329 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 149 transitions, 395 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:13:16,332 INFO L231 Difference]: Finished difference. Result has 146 places, 145 transitions, 349 flow [2024-10-31 22:13:16,332 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=317, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=349, PETRI_PLACES=146, PETRI_TRANSITIONS=145} [2024-10-31 22:13:16,334 INFO L277 CegarLoopForPetriNet]: 144 programPoint places, 2 predicate places. [2024-10-31 22:13:16,334 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 145 transitions, 349 flow [2024-10-31 22:13:16,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 123.33333333333333) internal successors, (370), 3 states have internal predecessors, (370), 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) [2024-10-31 22:13:16,335 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:13:16,336 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:13:16,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:13:16,337 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-10-31 22:13:16,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:16,339 INFO L85 PathProgramCache]: Analyzing trace with hash 517944477, now seen corresponding path program 1 times [2024-10-31 22:13:16,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:16,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295448795] [2024-10-31 22:13:16,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:16,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:16,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:13:16,377 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:13:16,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:13:16,425 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:13:16,425 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:13:16,427 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 12 remaining) [2024-10-31 22:13:16,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2024-10-31 22:13:16,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2024-10-31 22:13:16,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2024-10-31 22:13:16,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2024-10-31 22:13:16,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2024-10-31 22:13:16,431 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2024-10-31 22:13:16,431 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2024-10-31 22:13:16,431 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2024-10-31 22:13:16,431 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2024-10-31 22:13:16,431 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2024-10-31 22:13:16,432 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2024-10-31 22:13:16,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:13:16,432 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-10-31 22:13:16,435 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-31 22:13:16,435 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-31 22:13:16,466 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-31 22:13:16,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 188 places, 204 transitions, 424 flow [2024-10-31 22:13:16,525 INFO L124 PetriNetUnfolderBase]: 35/350 cut-off events. [2024-10-31 22:13:16,526 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-31 22:13:16,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 362 conditions, 350 events. 35/350 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1173 event pairs, 0 based on Foata normal form. 0/293 useless extension candidates. Maximal degree in co-relation 216. Up to 8 conditions per place. [2024-10-31 22:13:16,529 INFO L82 GeneralOperation]: Start removeDead. Operand has 188 places, 204 transitions, 424 flow [2024-10-31 22:13:16,534 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 188 places, 204 transitions, 424 flow [2024-10-31 22:13:16,537 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:13:16,541 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;@230fa62b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:13:16,542 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-10-31 22:13:16,550 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:13:16,551 INFO L124 PetriNetUnfolderBase]: 3/61 cut-off events. [2024-10-31 22:13:16,551 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:13:16,551 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:13:16,551 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] [2024-10-31 22:13:16,552 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-10-31 22:13:16,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:16,553 INFO L85 PathProgramCache]: Analyzing trace with hash 598020493, now seen corresponding path program 1 times [2024-10-31 22:13:16,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:16,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912612533] [2024-10-31 22:13:16,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:16,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:16,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:16,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:16,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:16,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912612533] [2024-10-31 22:13:16,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912612533] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:13:16,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:13:16,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:13:16,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56677464] [2024-10-31 22:13:16,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:13:16,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:13:16,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:16,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:13:16,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:13:16,651 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 204 [2024-10-31 22:13:16,652 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 204 transitions, 424 flow. Second operand has 3 states, 3 states have (on average 161.0) internal successors, (483), 3 states have internal predecessors, (483), 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) [2024-10-31 22:13:16,653 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:13:16,653 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 204 [2024-10-31 22:13:16,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:13:17,568 INFO L124 PetriNetUnfolderBase]: 789/4313 cut-off events. [2024-10-31 22:13:17,569 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2024-10-31 22:13:17,582 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5666 conditions, 4313 events. 789/4313 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 41133 event pairs, 348 based on Foata normal form. 749/4675 useless extension candidates. Maximal degree in co-relation 721. Up to 1303 conditions per place. [2024-10-31 22:13:17,602 INFO L140 encePairwiseOnDemand]: 183/204 looper letters, 31 selfloop transitions, 2 changer transitions 0/191 dead transitions. [2024-10-31 22:13:17,602 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 191 transitions, 464 flow [2024-10-31 22:13:17,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:13:17,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:13:17,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 536 transitions. [2024-10-31 22:13:17,604 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8758169934640523 [2024-10-31 22:13:17,604 INFO L175 Difference]: Start difference. First operand has 188 places, 204 transitions, 424 flow. Second operand 3 states and 536 transitions. [2024-10-31 22:13:17,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 191 transitions, 464 flow [2024-10-31 22:13:17,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 191 transitions, 464 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:13:17,609 INFO L231 Difference]: Finished difference. Result has 189 places, 185 transitions, 396 flow [2024-10-31 22:13:17,610 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=396, PETRI_PLACES=189, PETRI_TRANSITIONS=185} [2024-10-31 22:13:17,611 INFO L277 CegarLoopForPetriNet]: 188 programPoint places, 1 predicate places. [2024-10-31 22:13:17,612 INFO L471 AbstractCegarLoop]: Abstraction has has 189 places, 185 transitions, 396 flow [2024-10-31 22:13:17,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 161.0) internal successors, (483), 3 states have internal predecessors, (483), 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) [2024-10-31 22:13:17,613 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:13:17,614 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] [2024-10-31 22:13:17,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:13:17,614 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-10-31 22:13:17,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:17,615 INFO L85 PathProgramCache]: Analyzing trace with hash 182982859, now seen corresponding path program 1 times [2024-10-31 22:13:17,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:17,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153119642] [2024-10-31 22:13:17,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:17,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:17,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:18,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:18,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:18,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153119642] [2024-10-31 22:13:18,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153119642] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:13:18,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:13:18,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:13:18,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012502616] [2024-10-31 22:13:18,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:13:18,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:13:18,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:18,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:13:18,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:13:18,201 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 204 [2024-10-31 22:13:18,203 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 185 transitions, 396 flow. Second operand has 6 states, 6 states have (on average 148.5) internal successors, (891), 6 states have internal predecessors, (891), 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) [2024-10-31 22:13:18,203 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:13:18,204 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 204 [2024-10-31 22:13:18,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:13:19,524 INFO L124 PetriNetUnfolderBase]: 1719/5688 cut-off events. [2024-10-31 22:13:19,524 INFO L125 PetriNetUnfolderBase]: For 119/119 co-relation queries the response was YES. [2024-10-31 22:13:19,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8700 conditions, 5688 events. 1719/5688 cut-off events. For 119/119 co-relation queries the response was YES. Maximal size of possible extension queue 188. Compared 54074 event pairs, 222 based on Foata normal form. 0/5295 useless extension candidates. Maximal degree in co-relation 1233. Up to 2015 conditions per place. [2024-10-31 22:13:19,575 INFO L140 encePairwiseOnDemand]: 198/204 looper letters, 80 selfloop transitions, 6 changer transitions 0/232 dead transitions. [2024-10-31 22:13:19,575 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 232 transitions, 662 flow [2024-10-31 22:13:19,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:13:19,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:13:19,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 968 transitions. [2024-10-31 22:13:19,579 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7908496732026143 [2024-10-31 22:13:19,579 INFO L175 Difference]: Start difference. First operand has 189 places, 185 transitions, 396 flow. Second operand 6 states and 968 transitions. [2024-10-31 22:13:19,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 232 transitions, 662 flow [2024-10-31 22:13:19,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 232 transitions, 660 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:13:19,586 INFO L231 Difference]: Finished difference. Result has 192 places, 184 transitions, 404 flow [2024-10-31 22:13:19,587 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=392, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=404, PETRI_PLACES=192, PETRI_TRANSITIONS=184} [2024-10-31 22:13:19,587 INFO L277 CegarLoopForPetriNet]: 188 programPoint places, 4 predicate places. [2024-10-31 22:13:19,588 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 184 transitions, 404 flow [2024-10-31 22:13:19,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 148.5) internal successors, (891), 6 states have internal predecessors, (891), 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) [2024-10-31 22:13:19,589 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:13:19,589 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] [2024-10-31 22:13:19,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:13:19,590 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-10-31 22:13:19,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:19,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1648112099, now seen corresponding path program 1 times [2024-10-31 22:13:19,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:19,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756895364] [2024-10-31 22:13:19,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:19,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:19,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:19,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:19,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:19,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756895364] [2024-10-31 22:13:19,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756895364] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:13:19,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:13:19,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:13:19,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62995454] [2024-10-31 22:13:19,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:13:19,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:13:19,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:19,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:13:19,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:13:19,704 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 204 [2024-10-31 22:13:19,705 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 184 transitions, 404 flow. Second operand has 3 states, 3 states have (on average 147.66666666666666) internal successors, (443), 3 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:13:19,705 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:13:19,705 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 204 [2024-10-31 22:13:19,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:13:22,222 INFO L124 PetriNetUnfolderBase]: 3894/14611 cut-off events. [2024-10-31 22:13:22,222 INFO L125 PetriNetUnfolderBase]: For 238/238 co-relation queries the response was YES. [2024-10-31 22:13:22,272 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21162 conditions, 14611 events. 3894/14611 cut-off events. For 238/238 co-relation queries the response was YES. Maximal size of possible extension queue 385. Compared 164005 event pairs, 1530 based on Foata normal form. 0/13069 useless extension candidates. Maximal degree in co-relation 20044. Up to 3516 conditions per place. [2024-10-31 22:13:22,329 INFO L140 encePairwiseOnDemand]: 185/204 looper letters, 58 selfloop transitions, 14 changer transitions 0/217 dead transitions. [2024-10-31 22:13:22,329 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 217 transitions, 625 flow [2024-10-31 22:13:22,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:13:22,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:13:22,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 515 transitions. [2024-10-31 22:13:22,331 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8415032679738562 [2024-10-31 22:13:22,331 INFO L175 Difference]: Start difference. First operand has 192 places, 184 transitions, 404 flow. Second operand 3 states and 515 transitions. [2024-10-31 22:13:22,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 217 transitions, 625 flow [2024-10-31 22:13:22,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 217 transitions, 613 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:13:22,337 INFO L231 Difference]: Finished difference. Result has 191 places, 198 transitions, 514 flow [2024-10-31 22:13:22,337 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=392, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=514, PETRI_PLACES=191, PETRI_TRANSITIONS=198} [2024-10-31 22:13:22,338 INFO L277 CegarLoopForPetriNet]: 188 programPoint places, 3 predicate places. [2024-10-31 22:13:22,339 INFO L471 AbstractCegarLoop]: Abstraction has has 191 places, 198 transitions, 514 flow [2024-10-31 22:13:22,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 147.66666666666666) internal successors, (443), 3 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:13:22,339 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:13:22,339 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, 1, 1] [2024-10-31 22:13:22,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:13:22,340 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-10-31 22:13:22,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:22,340 INFO L85 PathProgramCache]: Analyzing trace with hash -368572323, now seen corresponding path program 1 times [2024-10-31 22:13:22,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:22,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243449811] [2024-10-31 22:13:22,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:22,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:22,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:22,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:22,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:22,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243449811] [2024-10-31 22:13:22,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243449811] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:13:22,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:13:22,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:13:22,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681167064] [2024-10-31 22:13:22,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:13:22,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:13:22,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:22,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:13:22,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:13:22,443 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 204 [2024-10-31 22:13:22,444 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 198 transitions, 514 flow. Second operand has 3 states, 3 states have (on average 154.33333333333334) internal successors, (463), 3 states have internal predecessors, (463), 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) [2024-10-31 22:13:22,444 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:13:22,444 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 204 [2024-10-31 22:13:22,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:13:25,292 INFO L124 PetriNetUnfolderBase]: 4021/16464 cut-off events. [2024-10-31 22:13:25,293 INFO L125 PetriNetUnfolderBase]: For 4445/4626 co-relation queries the response was YES. [2024-10-31 22:13:25,347 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27152 conditions, 16464 events. 4021/16464 cut-off events. For 4445/4626 co-relation queries the response was YES. Maximal size of possible extension queue 424. Compared 193929 event pairs, 2411 based on Foata normal form. 46/14965 useless extension candidates. Maximal degree in co-relation 13739. Up to 5498 conditions per place. [2024-10-31 22:13:25,406 INFO L140 encePairwiseOnDemand]: 195/204 looper letters, 52 selfloop transitions, 14 changer transitions 0/222 dead transitions. [2024-10-31 22:13:25,406 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 222 transitions, 732 flow [2024-10-31 22:13:25,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:13:25,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:13:25,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 509 transitions. [2024-10-31 22:13:25,408 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8316993464052288 [2024-10-31 22:13:25,408 INFO L175 Difference]: Start difference. First operand has 191 places, 198 transitions, 514 flow. Second operand 3 states and 509 transitions. [2024-10-31 22:13:25,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 222 transitions, 732 flow [2024-10-31 22:13:25,425 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 222 transitions, 694 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:13:25,428 INFO L231 Difference]: Finished difference. Result has 193 places, 210 transitions, 612 flow [2024-10-31 22:13:25,429 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=486, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=612, PETRI_PLACES=193, PETRI_TRANSITIONS=210} [2024-10-31 22:13:25,431 INFO L277 CegarLoopForPetriNet]: 188 programPoint places, 5 predicate places. [2024-10-31 22:13:25,432 INFO L471 AbstractCegarLoop]: Abstraction has has 193 places, 210 transitions, 612 flow [2024-10-31 22:13:25,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 154.33333333333334) internal successors, (463), 3 states have internal predecessors, (463), 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) [2024-10-31 22:13:25,433 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:13:25,433 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:13:25,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:13:25,433 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-10-31 22:13:25,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:25,434 INFO L85 PathProgramCache]: Analyzing trace with hash 556786939, now seen corresponding path program 1 times [2024-10-31 22:13:25,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:25,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307771554] [2024-10-31 22:13:25,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:25,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:25,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:25,545 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:25,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:25,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307771554] [2024-10-31 22:13:25,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307771554] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:13:25,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1329217287] [2024-10-31 22:13:25,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:25,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:13:25,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a64c04c3-516b-46ae-b03f-e614ff02a072/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:13:25,549 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a64c04c3-516b-46ae-b03f-e614ff02a072/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:13:25,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a64c04c3-516b-46ae-b03f-e614ff02a072/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:13:25,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:25,665 INFO L255 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:13:25,668 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:13:25,754 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:25,756 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:13:25,828 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:25,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1329217287] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:13:25,830 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:13:25,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-31 22:13:25,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551955464] [2024-10-31 22:13:25,830 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:13:25,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-31 22:13:25,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:25,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-31 22:13:25,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-31 22:13:25,942 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 204 [2024-10-31 22:13:25,945 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 210 transitions, 612 flow. Second operand has 10 states, 10 states have (on average 158.5) internal successors, (1585), 10 states have internal predecessors, (1585), 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) [2024-10-31 22:13:25,945 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:13:25,945 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 204 [2024-10-31 22:13:25,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:13:26,736 INFO L124 PetriNetUnfolderBase]: 806/4161 cut-off events. [2024-10-31 22:13:26,736 INFO L125 PetriNetUnfolderBase]: For 628/679 co-relation queries the response was YES. [2024-10-31 22:13:26,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6432 conditions, 4161 events. 806/4161 cut-off events. For 628/679 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 39610 event pairs, 47 based on Foata normal form. 110/3965 useless extension candidates. Maximal degree in co-relation 3055. Up to 470 conditions per place. [2024-10-31 22:13:26,760 INFO L140 encePairwiseOnDemand]: 199/204 looper letters, 72 selfloop transitions, 7 changer transitions 0/217 dead transitions. [2024-10-31 22:13:26,761 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 217 transitions, 738 flow [2024-10-31 22:13:26,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-31 22:13:26,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-31 22:13:26,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1485 transitions. [2024-10-31 22:13:26,765 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8088235294117647 [2024-10-31 22:13:26,765 INFO L175 Difference]: Start difference. First operand has 193 places, 210 transitions, 612 flow. Second operand 9 states and 1485 transitions. [2024-10-31 22:13:26,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 217 transitions, 738 flow [2024-10-31 22:13:26,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 217 transitions, 718 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:13:26,771 INFO L231 Difference]: Finished difference. Result has 156 places, 161 transitions, 462 flow [2024-10-31 22:13:26,772 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=444, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=462, PETRI_PLACES=156, PETRI_TRANSITIONS=161} [2024-10-31 22:13:26,772 INFO L277 CegarLoopForPetriNet]: 188 programPoint places, -32 predicate places. [2024-10-31 22:13:26,773 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 161 transitions, 462 flow [2024-10-31 22:13:26,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 158.5) internal successors, (1585), 10 states have internal predecessors, (1585), 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) [2024-10-31 22:13:26,774 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:13:26,774 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:13:26,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a64c04c3-516b-46ae-b03f-e614ff02a072/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-31 22:13:26,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a64c04c3-516b-46ae-b03f-e614ff02a072/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-31 22:13:26,976 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-10-31 22:13:26,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:26,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1630048700, now seen corresponding path program 1 times [2024-10-31 22:13:26,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:26,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628670104] [2024-10-31 22:13:26,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:26,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:27,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:27,047 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-31 22:13:27,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:27,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628670104] [2024-10-31 22:13:27,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628670104] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:13:27,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:13:27,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:13:27,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225565203] [2024-10-31 22:13:27,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:13:27,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:13:27,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:27,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:13:27,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:13:27,097 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 204 [2024-10-31 22:13:27,098 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 161 transitions, 462 flow. Second operand has 3 states, 3 states have (on average 154.66666666666666) internal successors, (464), 3 states have internal predecessors, (464), 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) [2024-10-31 22:13:27,098 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:13:27,099 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 204 [2024-10-31 22:13:27,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:13:27,316 INFO L124 PetriNetUnfolderBase]: 261/1302 cut-off events. [2024-10-31 22:13:27,316 INFO L125 PetriNetUnfolderBase]: For 448/469 co-relation queries the response was YES. [2024-10-31 22:13:27,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2347 conditions, 1302 events. 261/1302 cut-off events. For 448/469 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 8676 event pairs, 132 based on Foata normal form. 7/1216 useless extension candidates. Maximal degree in co-relation 2262. Up to 459 conditions per place. [2024-10-31 22:13:27,329 INFO L140 encePairwiseOnDemand]: 196/204 looper letters, 42 selfloop transitions, 12 changer transitions 0/175 dead transitions. [2024-10-31 22:13:27,329 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 175 transitions, 614 flow [2024-10-31 22:13:27,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:13:27,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:13:27,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 495 transitions. [2024-10-31 22:13:27,331 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8088235294117647 [2024-10-31 22:13:27,332 INFO L175 Difference]: Start difference. First operand has 156 places, 161 transitions, 462 flow. Second operand 3 states and 495 transitions. [2024-10-31 22:13:27,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 175 transitions, 614 flow [2024-10-31 22:13:27,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 175 transitions, 599 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-10-31 22:13:27,339 INFO L231 Difference]: Finished difference. Result has 155 places, 169 transitions, 545 flow [2024-10-31 22:13:27,340 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=447, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=545, PETRI_PLACES=155, PETRI_TRANSITIONS=169} [2024-10-31 22:13:27,341 INFO L277 CegarLoopForPetriNet]: 188 programPoint places, -33 predicate places. [2024-10-31 22:13:27,341 INFO L471 AbstractCegarLoop]: Abstraction has has 155 places, 169 transitions, 545 flow [2024-10-31 22:13:27,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 154.66666666666666) internal successors, (464), 3 states have internal predecessors, (464), 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) [2024-10-31 22:13:27,342 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:13:27,342 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:13:27,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-31 22:13:27,343 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-10-31 22:13:27,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:27,343 INFO L85 PathProgramCache]: Analyzing trace with hash -617759989, now seen corresponding path program 1 times [2024-10-31 22:13:27,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:27,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407394382] [2024-10-31 22:13:27,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:27,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:27,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:27,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:27,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:27,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407394382] [2024-10-31 22:13:27,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407394382] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:13:27,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:13:27,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:13:27,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468663700] [2024-10-31 22:13:27,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:13:27,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:13:27,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:27,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:13:27,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:13:27,440 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 204 [2024-10-31 22:13:27,441 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 169 transitions, 545 flow. Second operand has 3 states, 3 states have (on average 155.66666666666666) internal successors, (467), 3 states have internal predecessors, (467), 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) [2024-10-31 22:13:27,441 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:13:27,441 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 204 [2024-10-31 22:13:27,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:13:27,680 INFO L124 PetriNetUnfolderBase]: 292/1374 cut-off events. [2024-10-31 22:13:27,680 INFO L125 PetriNetUnfolderBase]: For 1085/1120 co-relation queries the response was YES. [2024-10-31 22:13:27,687 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2801 conditions, 1374 events. 292/1374 cut-off events. For 1085/1120 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 9372 event pairs, 134 based on Foata normal form. 9/1306 useless extension candidates. Maximal degree in co-relation 2719. Up to 501 conditions per place. [2024-10-31 22:13:27,693 INFO L140 encePairwiseOnDemand]: 196/204 looper letters, 49 selfloop transitions, 12 changer transitions 0/184 dead transitions. [2024-10-31 22:13:27,694 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 184 transitions, 734 flow [2024-10-31 22:13:27,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:13:27,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:13:27,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 496 transitions. [2024-10-31 22:13:27,696 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8104575163398693 [2024-10-31 22:13:27,696 INFO L175 Difference]: Start difference. First operand has 155 places, 169 transitions, 545 flow. Second operand 3 states and 496 transitions. [2024-10-31 22:13:27,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 184 transitions, 734 flow [2024-10-31 22:13:27,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 184 transitions, 706 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:13:27,702 INFO L231 Difference]: Finished difference. Result has 157 places, 177 transitions, 631 flow [2024-10-31 22:13:27,703 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=521, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=631, PETRI_PLACES=157, PETRI_TRANSITIONS=177} [2024-10-31 22:13:27,703 INFO L277 CegarLoopForPetriNet]: 188 programPoint places, -31 predicate places. [2024-10-31 22:13:27,703 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 177 transitions, 631 flow [2024-10-31 22:13:27,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 155.66666666666666) internal successors, (467), 3 states have internal predecessors, (467), 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) [2024-10-31 22:13:27,704 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:13:27,704 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:13:27,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-31 22:13:27,705 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-10-31 22:13:27,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:27,705 INFO L85 PathProgramCache]: Analyzing trace with hash -785800553, now seen corresponding path program 1 times [2024-10-31 22:13:27,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:27,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225747355] [2024-10-31 22:13:27,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:27,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:27,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:13:27,731 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:13:27,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:13:27,755 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:13:27,756 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:13:27,756 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 16 remaining) [2024-10-31 22:13:27,756 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (14 of 16 remaining) [2024-10-31 22:13:27,756 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 16 remaining) [2024-10-31 22:13:27,757 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (12 of 16 remaining) [2024-10-31 22:13:27,757 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 16 remaining) [2024-10-31 22:13:27,757 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (10 of 16 remaining) [2024-10-31 22:13:27,757 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 16 remaining) [2024-10-31 22:13:27,757 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 16 remaining) [2024-10-31 22:13:27,757 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 16 remaining) [2024-10-31 22:13:27,757 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 16 remaining) [2024-10-31 22:13:27,758 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 16 remaining) [2024-10-31 22:13:27,758 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 16 remaining) [2024-10-31 22:13:27,758 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 16 remaining) [2024-10-31 22:13:27,758 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 16 remaining) [2024-10-31 22:13:27,758 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 16 remaining) [2024-10-31 22:13:27,758 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 16 remaining) [2024-10-31 22:13:27,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-31 22:13:27,759 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:13:27,759 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-31 22:13:27,760 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-10-31 22:13:27,795 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-31 22:13:27,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 232 places, 253 transitions, 533 flow [2024-10-31 22:13:27,907 INFO L124 PetriNetUnfolderBase]: 55/531 cut-off events. [2024-10-31 22:13:27,907 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-10-31 22:13:27,914 INFO L83 FinitePrefix]: Finished finitePrefix Result has 556 conditions, 531 events. 55/531 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1984 event pairs, 1 based on Foata normal form. 0/444 useless extension candidates. Maximal degree in co-relation 358. Up to 16 conditions per place. [2024-10-31 22:13:27,914 INFO L82 GeneralOperation]: Start removeDead. Operand has 232 places, 253 transitions, 533 flow [2024-10-31 22:13:27,923 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 232 places, 253 transitions, 533 flow [2024-10-31 22:13:27,925 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:13:27,926 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;@230fa62b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:13:27,926 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-10-31 22:13:27,935 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:13:27,935 INFO L124 PetriNetUnfolderBase]: 3/61 cut-off events. [2024-10-31 22:13:27,935 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:13:27,936 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:13:27,936 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] [2024-10-31 22:13:27,936 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-10-31 22:13:27,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:27,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1041899757, now seen corresponding path program 1 times [2024-10-31 22:13:27,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:27,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611365426] [2024-10-31 22:13:27,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:27,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:27,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:28,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:28,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:28,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611365426] [2024-10-31 22:13:28,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611365426] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:13:28,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:13:28,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:13:28,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090554450] [2024-10-31 22:13:28,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:13:28,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:13:28,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:28,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:13:28,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:13:28,040 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 253 [2024-10-31 22:13:28,042 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 253 transitions, 533 flow. Second operand has 3 states, 3 states have (on average 196.0) internal successors, (588), 3 states have internal predecessors, (588), 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) [2024-10-31 22:13:28,042 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:13:28,042 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 253 [2024-10-31 22:13:28,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:13:33,781 INFO L124 PetriNetUnfolderBase]: 8949/35357 cut-off events. [2024-10-31 22:13:33,782 INFO L125 PetriNetUnfolderBase]: For 937/937 co-relation queries the response was YES. [2024-10-31 22:13:33,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48595 conditions, 35357 events. 8949/35357 cut-off events. For 937/937 co-relation queries the response was YES. Maximal size of possible extension queue 770. Compared 457962 event pairs, 8324 based on Foata normal form. 7648/39622 useless extension candidates. Maximal degree in co-relation 35526. Up to 12802 conditions per place. [2024-10-31 22:13:34,111 INFO L140 encePairwiseOnDemand]: 226/253 looper letters, 39 selfloop transitions, 2 changer transitions 0/234 dead transitions. [2024-10-31 22:13:34,111 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 234 transitions, 577 flow [2024-10-31 22:13:34,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:13:34,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:13:34,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 655 transitions. [2024-10-31 22:13:34,114 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8629776021080369 [2024-10-31 22:13:34,114 INFO L175 Difference]: Start difference. First operand has 232 places, 253 transitions, 533 flow. Second operand 3 states and 655 transitions. [2024-10-31 22:13:34,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 234 transitions, 577 flow [2024-10-31 22:13:34,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 234 transitions, 577 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:13:34,120 INFO L231 Difference]: Finished difference. Result has 233 places, 228 transitions, 493 flow [2024-10-31 22:13:34,120 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=253, PETRI_DIFFERENCE_MINUEND_FLOW=481, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=225, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=493, PETRI_PLACES=233, PETRI_TRANSITIONS=228} [2024-10-31 22:13:34,121 INFO L277 CegarLoopForPetriNet]: 232 programPoint places, 1 predicate places. [2024-10-31 22:13:34,121 INFO L471 AbstractCegarLoop]: Abstraction has has 233 places, 228 transitions, 493 flow [2024-10-31 22:13:34,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 196.0) internal successors, (588), 3 states have internal predecessors, (588), 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) [2024-10-31 22:13:34,122 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:13:34,122 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] [2024-10-31 22:13:34,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-31 22:13:34,122 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-10-31 22:13:34,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:34,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1549201355, now seen corresponding path program 1 times [2024-10-31 22:13:34,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:34,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525756014] [2024-10-31 22:13:34,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:34,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:34,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:34,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:34,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:34,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525756014] [2024-10-31 22:13:34,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525756014] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:13:34,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:13:34,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:13:34,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925289326] [2024-10-31 22:13:34,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:13:34,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:13:34,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:34,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:13:34,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:13:34,591 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 253 [2024-10-31 22:13:34,593 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 228 transitions, 493 flow. Second operand has 6 states, 6 states have (on average 183.5) internal successors, (1101), 6 states have internal predecessors, (1101), 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) [2024-10-31 22:13:34,593 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:13:34,593 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 253 [2024-10-31 22:13:34,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand