./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-array-int-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d0437f-6312-42c6-a6d6-b2ae76e45976/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d0437f-6312-42c6-a6d6-b2ae76e45976/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_85d0437f-6312-42c6-a6d6-b2ae76e45976/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d0437f-6312-42c6-a6d6-b2ae76e45976/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-array-int-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d0437f-6312-42c6-a6d6-b2ae76e45976/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_85d0437f-6312-42c6-a6d6-b2ae76e45976/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 5bb11505151393f96d52a572beff0352326876d897656a8082ae272a8f39e0b4 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:16:16,012 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:16:16,107 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d0437f-6312-42c6-a6d6-b2ae76e45976/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 22:16:16,114 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:16:16,116 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:16:16,152 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:16:16,155 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:16:16,155 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:16:16,157 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:16:16,158 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:16:16,160 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:16:16,160 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:16:16,161 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:16:16,161 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:16:16,162 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:16:16,162 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:16:16,162 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:16:16,163 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:16:16,163 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:16:16,168 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:16:16,168 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:16:16,169 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:16:16,169 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 22:16:16,170 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:16:16,170 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:16:16,170 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:16:16,171 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:16:16,171 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:16:16,172 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:16:16,172 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:16:16,172 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:16:16,173 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:16:16,176 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:16:16,176 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:16:16,176 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:16:16,176 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:16:16,177 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:16:16,177 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:16:16,177 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:16:16,177 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:16:16,177 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:16:16,180 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_85d0437f-6312-42c6-a6d6-b2ae76e45976/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d0437f-6312-42c6-a6d6-b2ae76e45976/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5bb11505151393f96d52a572beff0352326876d897656a8082ae272a8f39e0b4 [2024-10-31 22:16:16,484 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:16:16,517 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:16:16,520 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:16:16,521 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:16:16,522 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:16:16,523 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d0437f-6312-42c6-a6d6-b2ae76e45976/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/weaver/chl-array-int-trans.wvr.c Unable to find full path for "g++" [2024-10-31 22:16:18,466 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:16:18,702 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:16:18,703 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d0437f-6312-42c6-a6d6-b2ae76e45976/sv-benchmarks/c/weaver/chl-array-int-trans.wvr.c [2024-10-31 22:16:18,713 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d0437f-6312-42c6-a6d6-b2ae76e45976/bin/uautomizer-verify-4GaUIPS5ZU/data/b85cfec93/f7b87da0074b4c0cbd0d2a3cdc4bbe69/FLAGa3f1c3c42 [2024-10-31 22:16:18,734 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d0437f-6312-42c6-a6d6-b2ae76e45976/bin/uautomizer-verify-4GaUIPS5ZU/data/b85cfec93/f7b87da0074b4c0cbd0d2a3cdc4bbe69 [2024-10-31 22:16:18,736 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:16:18,738 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:16:18,739 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:16:18,740 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:16:18,746 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:16:18,747 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:16:18" (1/1) ... [2024-10-31 22:16:18,748 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@327d2d1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:18, skipping insertion in model container [2024-10-31 22:16:18,748 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:16:18" (1/1) ... [2024-10-31 22:16:18,775 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:16:19,026 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:16:19,035 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:16:19,077 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:16:19,097 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:16:19,098 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:19 WrapperNode [2024-10-31 22:16:19,098 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:16:19,099 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:16:19,099 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:16:19,099 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:16:19,106 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:19" (1/1) ... [2024-10-31 22:16:19,120 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:19" (1/1) ... [2024-10-31 22:16:19,177 INFO L138 Inliner]: procedures = 25, calls = 35, calls flagged for inlining = 14, calls inlined = 22, statements flattened = 484 [2024-10-31 22:16:19,177 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:16:19,178 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:16:19,178 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:16:19,178 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:16:19,188 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:19" (1/1) ... [2024-10-31 22:16:19,189 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:19" (1/1) ... [2024-10-31 22:16:19,197 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:19" (1/1) ... [2024-10-31 22:16:19,197 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:19" (1/1) ... [2024-10-31 22:16:19,235 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:19" (1/1) ... [2024-10-31 22:16:19,246 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:19" (1/1) ... [2024-10-31 22:16:19,249 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:19" (1/1) ... [2024-10-31 22:16:19,256 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:19" (1/1) ... [2024-10-31 22:16:19,268 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:16:19,272 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:16:19,272 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:16:19,272 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:16:19,273 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:19" (1/1) ... [2024-10-31 22:16:19,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:16:19,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d0437f-6312-42c6-a6d6-b2ae76e45976/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:19,327 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d0437f-6312-42c6-a6d6-b2ae76e45976/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:19,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d0437f-6312-42c6-a6d6-b2ae76e45976/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:16:19,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:16:19,372 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-31 22:16:19,372 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-31 22:16:19,373 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-31 22:16:19,373 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-31 22:16:19,373 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-31 22:16:19,373 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-31 22:16:19,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 22:16:19,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-31 22:16:19,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-31 22:16:19,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:16:19,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:16:19,376 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-31 22:16:19,380 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 22:16:19,565 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:16:19,568 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:16:20,771 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:16:20,771 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:16:20,798 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:16:20,798 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-10-31 22:16:20,799 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:16:20 BoogieIcfgContainer [2024-10-31 22:16:20,799 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:16:20,801 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:16:20,801 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:16:20,805 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:16:20,805 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:16:18" (1/3) ... [2024-10-31 22:16:20,806 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51224ca8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:16:20, skipping insertion in model container [2024-10-31 22:16:20,806 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:19" (2/3) ... [2024-10-31 22:16:20,806 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51224ca8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:16:20, skipping insertion in model container [2024-10-31 22:16:20,806 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:16:20" (3/3) ... [2024-10-31 22:16:20,808 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-array-int-trans.wvr.c [2024-10-31 22:16:20,829 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:16:20,829 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 57 error locations. [2024-10-31 22:16:20,830 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:16:21,062 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-31 22:16:21,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 599 places, 622 transitions, 1265 flow [2024-10-31 22:16:21,525 INFO L124 PetriNetUnfolderBase]: 33/619 cut-off events. [2024-10-31 22:16:21,526 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-31 22:16:21,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 632 conditions, 619 events. 33/619 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1465 event pairs, 0 based on Foata normal form. 0/529 useless extension candidates. Maximal degree in co-relation 467. Up to 3 conditions per place. [2024-10-31 22:16:21,549 INFO L82 GeneralOperation]: Start removeDead. Operand has 599 places, 622 transitions, 1265 flow [2024-10-31 22:16:21,571 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 577 places, 598 transitions, 1214 flow [2024-10-31 22:16:21,594 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:16:21,602 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;@13be0931, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:16:21,602 INFO L334 AbstractCegarLoop]: Starting to check reachability of 102 error locations. [2024-10-31 22:16:21,607 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:16:21,610 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2024-10-31 22:16:21,611 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:16:21,611 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:16:21,612 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] [2024-10-31 22:16:21,612 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 98 more)] === [2024-10-31 22:16:21,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:21,618 INFO L85 PathProgramCache]: Analyzing trace with hash 832723251, now seen corresponding path program 1 times [2024-10-31 22:16:21,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:21,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294848090] [2024-10-31 22:16:21,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:21,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:21,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:21,911 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 22:16:21,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:21,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294848090] [2024-10-31 22:16:21,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294848090] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:21,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:21,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:16:21,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755896973] [2024-10-31 22:16:21,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:21,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:16:21,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:21,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:16:21,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:16:22,038 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 584 out of 622 [2024-10-31 22:16:22,047 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 577 places, 598 transitions, 1214 flow. Second operand has 3 states, 3 states have (on average 585.3333333333334) internal successors, (1756), 3 states have internal predecessors, (1756), 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 22:16:22,047 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:16:22,047 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 584 of 622 [2024-10-31 22:16:22,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:16:22,500 INFO L124 PetriNetUnfolderBase]: 37/1035 cut-off events. [2024-10-31 22:16:22,500 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-10-31 22:16:22,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1101 conditions, 1035 events. 37/1035 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4609 event pairs, 12 based on Foata normal form. 34/910 useless extension candidates. Maximal degree in co-relation 832. Up to 39 conditions per place. [2024-10-31 22:16:22,526 INFO L140 encePairwiseOnDemand]: 601/622 looper letters, 14 selfloop transitions, 2 changer transitions 6/579 dead transitions. [2024-10-31 22:16:22,527 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 578 places, 579 transitions, 1208 flow [2024-10-31 22:16:22,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:16:22,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:16:22,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1787 transitions. [2024-10-31 22:16:22,554 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9576634512325831 [2024-10-31 22:16:22,557 INFO L175 Difference]: Start difference. First operand has 577 places, 598 transitions, 1214 flow. Second operand 3 states and 1787 transitions. [2024-10-31 22:16:22,558 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 578 places, 579 transitions, 1208 flow [2024-10-31 22:16:22,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 572 places, 579 transitions, 1196 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-10-31 22:16:22,584 INFO L231 Difference]: Finished difference. Result has 572 places, 573 transitions, 1156 flow [2024-10-31 22:16:22,587 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=622, PETRI_DIFFERENCE_MINUEND_FLOW=1164, PETRI_DIFFERENCE_MINUEND_PLACES=570, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=579, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=577, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1156, PETRI_PLACES=572, PETRI_TRANSITIONS=573} [2024-10-31 22:16:22,592 INFO L277 CegarLoopForPetriNet]: 577 programPoint places, -5 predicate places. [2024-10-31 22:16:22,592 INFO L471 AbstractCegarLoop]: Abstraction has has 572 places, 573 transitions, 1156 flow [2024-10-31 22:16:22,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 585.3333333333334) internal successors, (1756), 3 states have internal predecessors, (1756), 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 22:16:22,593 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:16:22,594 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:16:22,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:16:22,595 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 98 more)] === [2024-10-31 22:16:22,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:22,596 INFO L85 PathProgramCache]: Analyzing trace with hash -2142416312, now seen corresponding path program 1 times [2024-10-31 22:16:22,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:22,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012005530] [2024-10-31 22:16:22,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:22,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:22,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:22,688 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 22:16:22,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:22,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012005530] [2024-10-31 22:16:22,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012005530] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:22,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:22,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:16:22,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141649084] [2024-10-31 22:16:22,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:22,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:16:22,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:22,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:16:22,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:16:22,744 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 584 out of 622 [2024-10-31 22:16:22,747 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 572 places, 573 transitions, 1156 flow. Second operand has 3 states, 3 states have (on average 585.3333333333334) internal successors, (1756), 3 states have internal predecessors, (1756), 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 22:16:22,747 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:16:22,748 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 584 of 622 [2024-10-31 22:16:22,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:16:23,267 INFO L124 PetriNetUnfolderBase]: 57/1460 cut-off events. [2024-10-31 22:16:23,267 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-31 22:16:23,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1530 conditions, 1460 events. 57/1460 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 8136 event pairs, 20 based on Foata normal form. 0/1233 useless extension candidates. Maximal degree in co-relation 1496. Up to 51 conditions per place. [2024-10-31 22:16:23,300 INFO L140 encePairwiseOnDemand]: 619/622 looper letters, 14 selfloop transitions, 2 changer transitions 0/572 dead transitions. [2024-10-31 22:16:23,300 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 567 places, 572 transitions, 1186 flow [2024-10-31 22:16:23,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:16:23,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:16:23,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1769 transitions. [2024-10-31 22:16:23,304 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9480171489817792 [2024-10-31 22:16:23,304 INFO L175 Difference]: Start difference. First operand has 572 places, 573 transitions, 1156 flow. Second operand 3 states and 1769 transitions. [2024-10-31 22:16:23,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 567 places, 572 transitions, 1186 flow [2024-10-31 22:16:23,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 565 places, 572 transitions, 1182 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:16:23,315 INFO L231 Difference]: Finished difference. Result has 565 places, 572 transitions, 1154 flow [2024-10-31 22:16:23,316 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=622, PETRI_DIFFERENCE_MINUEND_FLOW=1150, PETRI_DIFFERENCE_MINUEND_PLACES=563, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=572, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=570, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1154, PETRI_PLACES=565, PETRI_TRANSITIONS=572} [2024-10-31 22:16:23,317 INFO L277 CegarLoopForPetriNet]: 577 programPoint places, -12 predicate places. [2024-10-31 22:16:23,317 INFO L471 AbstractCegarLoop]: Abstraction has has 565 places, 572 transitions, 1154 flow [2024-10-31 22:16:23,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 585.3333333333334) internal successors, (1756), 3 states have internal predecessors, (1756), 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 22:16:23,318 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:16:23,319 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] [2024-10-31 22:16:23,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:16:23,319 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 98 more)] === [2024-10-31 22:16:23,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:23,320 INFO L85 PathProgramCache]: Analyzing trace with hash 963352904, now seen corresponding path program 1 times [2024-10-31 22:16:23,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:23,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7506114] [2024-10-31 22:16:23,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:23,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:23,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:23,421 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 22:16:23,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:23,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7506114] [2024-10-31 22:16:23,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7506114] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:23,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:23,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:16:23,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483080579] [2024-10-31 22:16:23,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:23,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:16:23,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:23,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:16:23,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:16:23,495 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 584 out of 622 [2024-10-31 22:16:23,498 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 565 places, 572 transitions, 1154 flow. Second operand has 3 states, 3 states have (on average 585.3333333333334) internal successors, (1756), 3 states have internal predecessors, (1756), 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 22:16:23,498 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:16:23,498 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 584 of 622 [2024-10-31 22:16:23,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:16:23,936 INFO L124 PetriNetUnfolderBase]: 57/1447 cut-off events. [2024-10-31 22:16:23,936 INFO L125 PetriNetUnfolderBase]: For 13/16 co-relation queries the response was YES. [2024-10-31 22:16:23,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1509 conditions, 1447 events. 57/1447 cut-off events. For 13/16 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 7709 event pairs, 20 based on Foata normal form. 0/1226 useless extension candidates. Maximal degree in co-relation 1467. Up to 51 conditions per place. [2024-10-31 22:16:23,980 INFO L140 encePairwiseOnDemand]: 619/622 looper letters, 14 selfloop transitions, 2 changer transitions 0/571 dead transitions. [2024-10-31 22:16:23,980 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 566 places, 571 transitions, 1184 flow [2024-10-31 22:16:23,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:16:23,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:16:23,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1769 transitions. [2024-10-31 22:16:24,039 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9480171489817792 [2024-10-31 22:16:24,039 INFO L175 Difference]: Start difference. First operand has 565 places, 572 transitions, 1154 flow. Second operand 3 states and 1769 transitions. [2024-10-31 22:16:24,039 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 566 places, 571 transitions, 1184 flow [2024-10-31 22:16:24,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 564 places, 571 transitions, 1180 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:16:24,051 INFO L231 Difference]: Finished difference. Result has 564 places, 571 transitions, 1152 flow [2024-10-31 22:16:24,052 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=622, PETRI_DIFFERENCE_MINUEND_FLOW=1148, PETRI_DIFFERENCE_MINUEND_PLACES=562, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=571, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=569, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1152, PETRI_PLACES=564, PETRI_TRANSITIONS=571} [2024-10-31 22:16:24,053 INFO L277 CegarLoopForPetriNet]: 577 programPoint places, -13 predicate places. [2024-10-31 22:16:24,053 INFO L471 AbstractCegarLoop]: Abstraction has has 564 places, 571 transitions, 1152 flow [2024-10-31 22:16:24,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 585.3333333333334) internal successors, (1756), 3 states have internal predecessors, (1756), 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 22:16:24,057 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:16:24,058 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 22:16:24,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:16:24,058 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 98 more)] === [2024-10-31 22:16:24,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:24,059 INFO L85 PathProgramCache]: Analyzing trace with hash -29914970, now seen corresponding path program 1 times [2024-10-31 22:16:24,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:24,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900870770] [2024-10-31 22:16:24,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:24,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:24,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:24,119 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 22:16:24,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:24,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900870770] [2024-10-31 22:16:24,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900870770] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:24,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:24,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:16:24,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747187489] [2024-10-31 22:16:24,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:24,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:16:24,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:24,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:16:24,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:16:24,163 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 580 out of 622 [2024-10-31 22:16:24,166 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 564 places, 571 transitions, 1152 flow. Second operand has 3 states, 3 states have (on average 581.0) internal successors, (1743), 3 states have internal predecessors, (1743), 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 22:16:24,166 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:16:24,166 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 580 of 622 [2024-10-31 22:16:24,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:16:24,771 INFO L124 PetriNetUnfolderBase]: 69/1462 cut-off events. [2024-10-31 22:16:24,772 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-10-31 22:16:24,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1559 conditions, 1462 events. 69/1462 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 8299 event pairs, 32 based on Foata normal form. 0/1253 useless extension candidates. Maximal degree in co-relation 1509. Up to 80 conditions per place. [2024-10-31 22:16:24,816 INFO L140 encePairwiseOnDemand]: 616/622 looper letters, 16 selfloop transitions, 1 changer transitions 0/566 dead transitions. [2024-10-31 22:16:24,817 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 561 places, 566 transitions, 1176 flow [2024-10-31 22:16:24,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:16:24,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:16:24,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1762 transitions. [2024-10-31 22:16:24,822 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9442658092175777 [2024-10-31 22:16:24,822 INFO L175 Difference]: Start difference. First operand has 564 places, 571 transitions, 1152 flow. Second operand 3 states and 1762 transitions. [2024-10-31 22:16:24,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 561 places, 566 transitions, 1176 flow [2024-10-31 22:16:24,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 559 places, 566 transitions, 1172 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:16:24,836 INFO L231 Difference]: Finished difference. Result has 559 places, 566 transitions, 1140 flow [2024-10-31 22:16:24,837 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=622, PETRI_DIFFERENCE_MINUEND_FLOW=1138, PETRI_DIFFERENCE_MINUEND_PLACES=557, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=566, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=565, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1140, PETRI_PLACES=559, PETRI_TRANSITIONS=566} [2024-10-31 22:16:24,841 INFO L277 CegarLoopForPetriNet]: 577 programPoint places, -18 predicate places. [2024-10-31 22:16:24,841 INFO L471 AbstractCegarLoop]: Abstraction has has 559 places, 566 transitions, 1140 flow [2024-10-31 22:16:24,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 581.0) internal successors, (1743), 3 states have internal predecessors, (1743), 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 22:16:24,842 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:16:24,843 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 22:16:24,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:16:24,843 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 98 more)] === [2024-10-31 22:16:24,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:24,844 INFO L85 PathProgramCache]: Analyzing trace with hash -48097060, now seen corresponding path program 1 times [2024-10-31 22:16:24,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:24,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61987005] [2024-10-31 22:16:24,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:24,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:24,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:25,569 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 22:16:25,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:25,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61987005] [2024-10-31 22:16:25,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61987005] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:25,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:25,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:16:25,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343367989] [2024-10-31 22:16:25,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:25,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:16:25,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:25,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:16:25,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:16:26,521 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 506 out of 622 [2024-10-31 22:16:26,526 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 559 places, 566 transitions, 1140 flow. Second operand has 6 states, 6 states have (on average 507.5) internal successors, (3045), 6 states have internal predecessors, (3045), 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 22:16:26,526 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:16:26,526 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 506 of 622 [2024-10-31 22:16:26,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:16:39,100 INFO L124 PetriNetUnfolderBase]: 12108/56067 cut-off events. [2024-10-31 22:16:39,104 INFO L125 PetriNetUnfolderBase]: For 899/901 co-relation queries the response was YES. [2024-10-31 22:16:39,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73548 conditions, 56067 events. 12108/56067 cut-off events. For 899/901 co-relation queries the response was YES. Maximal size of possible extension queue 1068. Compared 783483 event pairs, 10080 based on Foata normal form. 0/48897 useless extension candidates. Maximal degree in co-relation 73499. Up to 17156 conditions per place. [2024-10-31 22:16:39,724 INFO L140 encePairwiseOnDemand]: 604/622 looper letters, 78 selfloop transitions, 15 changer transitions 0/563 dead transitions. [2024-10-31 22:16:39,724 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 561 places, 563 transitions, 1320 flow [2024-10-31 22:16:39,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:16:39,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:16:39,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3132 transitions. [2024-10-31 22:16:39,731 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8392282958199357 [2024-10-31 22:16:39,731 INFO L175 Difference]: Start difference. First operand has 559 places, 566 transitions, 1140 flow. Second operand 6 states and 3132 transitions. [2024-10-31 22:16:39,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 561 places, 563 transitions, 1320 flow [2024-10-31 22:16:39,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 560 places, 563 transitions, 1319 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:16:39,742 INFO L231 Difference]: Finished difference. Result has 560 places, 563 transitions, 1163 flow [2024-10-31 22:16:39,743 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=622, PETRI_DIFFERENCE_MINUEND_FLOW=1133, PETRI_DIFFERENCE_MINUEND_PLACES=555, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=563, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=548, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1163, PETRI_PLACES=560, PETRI_TRANSITIONS=563} [2024-10-31 22:16:39,746 INFO L277 CegarLoopForPetriNet]: 577 programPoint places, -17 predicate places. [2024-10-31 22:16:39,746 INFO L471 AbstractCegarLoop]: Abstraction has has 560 places, 563 transitions, 1163 flow [2024-10-31 22:16:39,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 507.5) internal successors, (3045), 6 states have internal predecessors, (3045), 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 22:16:39,748 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:16:39,750 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 22:16:39,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:16:39,750 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 98 more)] === [2024-10-31 22:16:39,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:39,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1074588689, now seen corresponding path program 1 times [2024-10-31 22:16:39,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:39,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548017907] [2024-10-31 22:16:39,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:39,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:39,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:39,812 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 22:16:39,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:39,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548017907] [2024-10-31 22:16:39,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548017907] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:39,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:39,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:16:39,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156810571] [2024-10-31 22:16:39,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:39,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:16:39,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:39,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:16:39,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:16:39,853 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 585 out of 622 [2024-10-31 22:16:39,856 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 560 places, 563 transitions, 1163 flow. Second operand has 3 states, 3 states have (on average 586.3333333333334) internal successors, (1759), 3 states have internal predecessors, (1759), 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 22:16:39,856 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:16:39,856 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 585 of 622 [2024-10-31 22:16:39,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:16:40,075 INFO L124 PetriNetUnfolderBase]: 37/1040 cut-off events. [2024-10-31 22:16:40,076 INFO L125 PetriNetUnfolderBase]: For 3/5 co-relation queries the response was YES. [2024-10-31 22:16:40,085 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1105 conditions, 1040 events. 37/1040 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 4525 event pairs, 12 based on Foata normal form. 0/901 useless extension candidates. Maximal degree in co-relation 1057. Up to 38 conditions per place. [2024-10-31 22:16:40,093 INFO L140 encePairwiseOnDemand]: 619/622 looper letters, 13 selfloop transitions, 2 changer transitions 0/562 dead transitions. [2024-10-31 22:16:40,093 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 561 places, 562 transitions, 1191 flow [2024-10-31 22:16:40,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:16:40,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:16:40,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1771 transitions. [2024-10-31 22:16:40,098 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9490889603429796 [2024-10-31 22:16:40,098 INFO L175 Difference]: Start difference. First operand has 560 places, 563 transitions, 1163 flow. Second operand 3 states and 1771 transitions. [2024-10-31 22:16:40,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 561 places, 562 transitions, 1191 flow [2024-10-31 22:16:40,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 556 places, 562 transitions, 1161 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:16:40,109 INFO L231 Difference]: Finished difference. Result has 556 places, 562 transitions, 1135 flow [2024-10-31 22:16:40,110 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=622, PETRI_DIFFERENCE_MINUEND_FLOW=1131, PETRI_DIFFERENCE_MINUEND_PLACES=554, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=562, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=560, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1135, PETRI_PLACES=556, PETRI_TRANSITIONS=562} [2024-10-31 22:16:40,111 INFO L277 CegarLoopForPetriNet]: 577 programPoint places, -21 predicate places. [2024-10-31 22:16:40,111 INFO L471 AbstractCegarLoop]: Abstraction has has 556 places, 562 transitions, 1135 flow [2024-10-31 22:16:40,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 586.3333333333334) internal successors, (1759), 3 states have internal predecessors, (1759), 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 22:16:40,113 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:16:40,113 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, 1, 1, 1, 1] [2024-10-31 22:16:40,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:16:40,113 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 98 more)] === [2024-10-31 22:16:40,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:40,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1452556130, now seen corresponding path program 1 times [2024-10-31 22:16:40,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:40,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636502988] [2024-10-31 22:16:40,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:40,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:40,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:40,156 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 22:16:40,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:40,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636502988] [2024-10-31 22:16:40,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636502988] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:40,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:40,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:16:40,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915134806] [2024-10-31 22:16:40,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:40,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:16:40,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:40,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:16:40,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:16:40,185 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 580 out of 622 [2024-10-31 22:16:40,188 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 556 places, 562 transitions, 1135 flow. Second operand has 3 states, 3 states have (on average 581.0) internal successors, (1743), 3 states have internal predecessors, (1743), 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 22:16:40,188 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:16:40,188 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 580 of 622 [2024-10-31 22:16:40,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:16:40,938 INFO L124 PetriNetUnfolderBase]: 137/2474 cut-off events. [2024-10-31 22:16:40,938 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-10-31 22:16:40,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2653 conditions, 2474 events. 137/2474 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 18314 event pairs, 64 based on Foata normal form. 0/2120 useless extension candidates. Maximal degree in co-relation 2603. Up to 141 conditions per place. [2024-10-31 22:16:41,006 INFO L140 encePairwiseOnDemand]: 616/622 looper letters, 16 selfloop transitions, 1 changer transitions 0/557 dead transitions. [2024-10-31 22:16:41,006 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 553 places, 557 transitions, 1159 flow [2024-10-31 22:16:41,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:16:41,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:16:41,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1762 transitions. [2024-10-31 22:16:41,011 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9442658092175777 [2024-10-31 22:16:41,012 INFO L175 Difference]: Start difference. First operand has 556 places, 562 transitions, 1135 flow. Second operand 3 states and 1762 transitions. [2024-10-31 22:16:41,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 553 places, 557 transitions, 1159 flow [2024-10-31 22:16:41,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 551 places, 557 transitions, 1155 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:16:41,024 INFO L231 Difference]: Finished difference. Result has 551 places, 557 transitions, 1123 flow [2024-10-31 22:16:41,025 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=622, PETRI_DIFFERENCE_MINUEND_FLOW=1121, PETRI_DIFFERENCE_MINUEND_PLACES=549, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=557, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=556, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1123, PETRI_PLACES=551, PETRI_TRANSITIONS=557} [2024-10-31 22:16:41,026 INFO L277 CegarLoopForPetriNet]: 577 programPoint places, -26 predicate places. [2024-10-31 22:16:41,027 INFO L471 AbstractCegarLoop]: Abstraction has has 551 places, 557 transitions, 1123 flow [2024-10-31 22:16:41,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 581.0) internal successors, (1743), 3 states have internal predecessors, (1743), 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 22:16:41,028 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:16:41,028 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:16:41,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:16:41,029 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 98 more)] === [2024-10-31 22:16:41,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:41,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1158170288, now seen corresponding path program 1 times [2024-10-31 22:16:41,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:41,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417663078] [2024-10-31 22:16:41,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:41,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:41,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:41,124 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 22:16:41,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:41,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417663078] [2024-10-31 22:16:41,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417663078] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:41,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:41,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:16:41,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131942419] [2024-10-31 22:16:41,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:41,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:16:41,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:41,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:16:41,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:16:41,168 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 585 out of 622 [2024-10-31 22:16:41,172 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 551 places, 557 transitions, 1123 flow. Second operand has 3 states, 3 states have (on average 586.3333333333334) internal successors, (1759), 3 states have internal predecessors, (1759), 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 22:16:41,172 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:16:41,172 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 585 of 622 [2024-10-31 22:16:41,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:16:41,639 INFO L124 PetriNetUnfolderBase]: 63/1714 cut-off events. [2024-10-31 22:16:41,640 INFO L125 PetriNetUnfolderBase]: For 3/5 co-relation queries the response was YES. [2024-10-31 22:16:41,664 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1783 conditions, 1714 events. 63/1714 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 9432 event pairs, 20 based on Foata normal form. 0/1476 useless extension candidates. Maximal degree in co-relation 1733. Up to 50 conditions per place. [2024-10-31 22:16:41,676 INFO L140 encePairwiseOnDemand]: 619/622 looper letters, 13 selfloop transitions, 2 changer transitions 0/556 dead transitions. [2024-10-31 22:16:41,676 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 552 places, 556 transitions, 1151 flow [2024-10-31 22:16:41,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:16:41,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:16:41,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1771 transitions. [2024-10-31 22:16:41,682 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9490889603429796 [2024-10-31 22:16:41,682 INFO L175 Difference]: Start difference. First operand has 551 places, 557 transitions, 1123 flow. Second operand 3 states and 1771 transitions. [2024-10-31 22:16:41,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 552 places, 556 transitions, 1151 flow [2024-10-31 22:16:41,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 551 places, 556 transitions, 1150 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:16:41,695 INFO L231 Difference]: Finished difference. Result has 551 places, 556 transitions, 1124 flow [2024-10-31 22:16:41,696 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=622, PETRI_DIFFERENCE_MINUEND_FLOW=1120, PETRI_DIFFERENCE_MINUEND_PLACES=549, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=556, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=554, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1124, PETRI_PLACES=551, PETRI_TRANSITIONS=556} [2024-10-31 22:16:41,697 INFO L277 CegarLoopForPetriNet]: 577 programPoint places, -26 predicate places. [2024-10-31 22:16:41,697 INFO L471 AbstractCegarLoop]: Abstraction has has 551 places, 556 transitions, 1124 flow [2024-10-31 22:16:41,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 586.3333333333334) internal successors, (1759), 3 states have internal predecessors, (1759), 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 22:16:41,699 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:16:41,699 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:16:41,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:16:41,700 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 98 more)] === [2024-10-31 22:16:41,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:41,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1654529695, now seen corresponding path program 1 times [2024-10-31 22:16:41,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:41,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399234542] [2024-10-31 22:16:41,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:41,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:41,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:41,767 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 22:16:41,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:41,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399234542] [2024-10-31 22:16:41,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399234542] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:41,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:41,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:16:41,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28802413] [2024-10-31 22:16:41,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:41,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:16:41,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:41,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:16:41,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:16:41,806 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 580 out of 622 [2024-10-31 22:16:41,810 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 551 places, 556 transitions, 1124 flow. Second operand has 3 states, 3 states have (on average 581.0) internal successors, (1743), 3 states have internal predecessors, (1743), 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 22:16:41,810 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:16:41,810 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 580 of 622 [2024-10-31 22:16:41,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:16:42,488 INFO L124 PetriNetUnfolderBase]: 137/2434 cut-off events. [2024-10-31 22:16:42,488 INFO L125 PetriNetUnfolderBase]: For 35/39 co-relation queries the response was YES. [2024-10-31 22:16:42,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2590 conditions, 2434 events. 137/2434 cut-off events. For 35/39 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 17650 event pairs, 64 based on Foata normal form. 0/2105 useless extension candidates. Maximal degree in co-relation 2540. Up to 141 conditions per place. [2024-10-31 22:16:42,548 INFO L140 encePairwiseOnDemand]: 616/622 looper letters, 16 selfloop transitions, 1 changer transitions 0/551 dead transitions. [2024-10-31 22:16:42,548 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 548 places, 551 transitions, 1148 flow [2024-10-31 22:16:42,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:16:42,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:16:42,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1762 transitions. [2024-10-31 22:16:42,552 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9442658092175777 [2024-10-31 22:16:42,552 INFO L175 Difference]: Start difference. First operand has 551 places, 556 transitions, 1124 flow. Second operand 3 states and 1762 transitions. [2024-10-31 22:16:42,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 548 places, 551 transitions, 1148 flow [2024-10-31 22:16:42,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 546 places, 551 transitions, 1144 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:16:42,562 INFO L231 Difference]: Finished difference. Result has 546 places, 551 transitions, 1112 flow [2024-10-31 22:16:42,563 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=622, PETRI_DIFFERENCE_MINUEND_FLOW=1110, PETRI_DIFFERENCE_MINUEND_PLACES=544, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=551, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=550, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1112, PETRI_PLACES=546, PETRI_TRANSITIONS=551} [2024-10-31 22:16:42,564 INFO L277 CegarLoopForPetriNet]: 577 programPoint places, -31 predicate places. [2024-10-31 22:16:42,564 INFO L471 AbstractCegarLoop]: Abstraction has has 546 places, 551 transitions, 1112 flow [2024-10-31 22:16:42,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 581.0) internal successors, (1743), 3 states have internal predecessors, (1743), 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 22:16:42,566 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:16:42,566 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:16:42,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:16:42,566 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 98 more)] === [2024-10-31 22:16:42,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:42,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1674852287, now seen corresponding path program 1 times [2024-10-31 22:16:42,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:42,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068619465] [2024-10-31 22:16:42,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:42,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:42,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:42,646 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 22:16:42,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:42,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068619465] [2024-10-31 22:16:42,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068619465] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:42,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:42,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:16:42,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213556472] [2024-10-31 22:16:42,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:42,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:16:42,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:42,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:16:42,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:16:42,690 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 585 out of 622 [2024-10-31 22:16:42,693 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 546 places, 551 transitions, 1112 flow. Second operand has 3 states, 3 states have (on average 586.3333333333334) internal successors, (1759), 3 states have internal predecessors, (1759), 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 22:16:42,693 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:16:42,693 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 585 of 622 [2024-10-31 22:16:42,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:16:42,925 INFO L124 PetriNetUnfolderBase]: 39/802 cut-off events. [2024-10-31 22:16:42,925 INFO L125 PetriNetUnfolderBase]: For 9/11 co-relation queries the response was YES. [2024-10-31 22:16:42,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 864 conditions, 802 events. 39/802 cut-off events. For 9/11 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2949 event pairs, 20 based on Foata normal form. 0/716 useless extension candidates. Maximal degree in co-relation 814. Up to 50 conditions per place. [2024-10-31 22:16:42,948 INFO L140 encePairwiseOnDemand]: 619/622 looper letters, 13 selfloop transitions, 2 changer transitions 0/550 dead transitions. [2024-10-31 22:16:42,952 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 547 places, 550 transitions, 1140 flow [2024-10-31 22:16:42,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:16:42,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:16:42,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1771 transitions. [2024-10-31 22:16:42,962 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9490889603429796 [2024-10-31 22:16:42,962 INFO L175 Difference]: Start difference. First operand has 546 places, 551 transitions, 1112 flow. Second operand 3 states and 1771 transitions. [2024-10-31 22:16:42,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 547 places, 550 transitions, 1140 flow [2024-10-31 22:16:42,971 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 546 places, 550 transitions, 1139 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:16:42,985 INFO L231 Difference]: Finished difference. Result has 546 places, 550 transitions, 1113 flow [2024-10-31 22:16:42,990 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=622, PETRI_DIFFERENCE_MINUEND_FLOW=1109, PETRI_DIFFERENCE_MINUEND_PLACES=544, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=550, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=548, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1113, PETRI_PLACES=546, PETRI_TRANSITIONS=550} [2024-10-31 22:16:42,991 INFO L277 CegarLoopForPetriNet]: 577 programPoint places, -31 predicate places. [2024-10-31 22:16:42,992 INFO L471 AbstractCegarLoop]: Abstraction has has 546 places, 550 transitions, 1113 flow [2024-10-31 22:16:42,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 586.3333333333334) internal successors, (1759), 3 states have internal predecessors, (1759), 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 22:16:42,998 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:16:42,998 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:16:42,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 22:16:42,998 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 98 more)] === [2024-10-31 22:16:42,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:42,999 INFO L85 PathProgramCache]: Analyzing trace with hash 721720402, now seen corresponding path program 1 times [2024-10-31 22:16:42,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:42,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142890243] [2024-10-31 22:16:42,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:43,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:43,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:43,080 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 22:16:43,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:43,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142890243] [2024-10-31 22:16:43,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142890243] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:43,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:43,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:16:43,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305982699] [2024-10-31 22:16:43,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:43,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:16:43,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:43,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:16:43,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:16:43,102 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 589 out of 622 [2024-10-31 22:16:43,105 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 546 places, 550 transitions, 1113 flow. Second operand has 3 states, 3 states have (on average 590.3333333333334) internal successors, (1771), 3 states have internal predecessors, (1771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:43,105 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:16:43,105 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 589 of 622 [2024-10-31 22:16:43,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:16:43,446 INFO L124 PetriNetUnfolderBase]: 35/982 cut-off events. [2024-10-31 22:16:43,446 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:16:43,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1035 conditions, 982 events. 35/982 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 4310 event pairs, 6 based on Foata normal form. 0/871 useless extension candidates. Maximal degree in co-relation 986. Up to 23 conditions per place. [2024-10-31 22:16:43,469 INFO L140 encePairwiseOnDemand]: 619/622 looper letters, 12 selfloop transitions, 2 changer transitions 0/551 dead transitions. [2024-10-31 22:16:43,469 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 547 places, 551 transitions, 1145 flow [2024-10-31 22:16:43,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:16:43,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:16:43,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1782 transitions. [2024-10-31 22:16:43,476 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.954983922829582 [2024-10-31 22:16:43,476 INFO L175 Difference]: Start difference. First operand has 546 places, 550 transitions, 1113 flow. Second operand 3 states and 1782 transitions. [2024-10-31 22:16:43,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 547 places, 551 transitions, 1145 flow [2024-10-31 22:16:43,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 545 places, 551 transitions, 1141 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:16:43,489 INFO L231 Difference]: Finished difference. Result has 545 places, 549 transitions, 1111 flow [2024-10-31 22:16:43,490 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=622, PETRI_DIFFERENCE_MINUEND_FLOW=1107, PETRI_DIFFERENCE_MINUEND_PLACES=543, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=549, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=547, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1111, PETRI_PLACES=545, PETRI_TRANSITIONS=549} [2024-10-31 22:16:43,491 INFO L277 CegarLoopForPetriNet]: 577 programPoint places, -32 predicate places. [2024-10-31 22:16:43,491 INFO L471 AbstractCegarLoop]: Abstraction has has 545 places, 549 transitions, 1111 flow [2024-10-31 22:16:43,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 590.3333333333334) internal successors, (1771), 3 states have internal predecessors, (1771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:43,493 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:16:43,494 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:16:43,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-31 22:16:43,494 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 98 more)] === [2024-10-31 22:16:43,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:43,495 INFO L85 PathProgramCache]: Analyzing trace with hash 199116120, now seen corresponding path program 1 times [2024-10-31 22:16:43,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:43,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442162367] [2024-10-31 22:16:43,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:43,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:43,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:43,595 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 22:16:43,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:43,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442162367] [2024-10-31 22:16:43,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442162367] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:43,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:43,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:16:43,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886340292] [2024-10-31 22:16:43,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:43,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:16:43,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:43,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:16:43,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:16:43,622 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 589 out of 622 [2024-10-31 22:16:43,625 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 545 places, 549 transitions, 1111 flow. Second operand has 3 states, 3 states have (on average 590.6666666666666) internal successors, (1772), 3 states have internal predecessors, (1772), 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 22:16:43,625 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:16:43,626 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 589 of 622 [2024-10-31 22:16:43,626 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:16:43,963 INFO L124 PetriNetUnfolderBase]: 32/868 cut-off events. [2024-10-31 22:16:43,964 INFO L125 PetriNetUnfolderBase]: For 7/13 co-relation queries the response was YES. [2024-10-31 22:16:43,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 916 conditions, 868 events. 32/868 cut-off events. For 7/13 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3353 event pairs, 6 based on Foata normal form. 1/776 useless extension candidates. Maximal degree in co-relation 867. Up to 23 conditions per place. [2024-10-31 22:16:43,987 INFO L140 encePairwiseOnDemand]: 619/622 looper letters, 12 selfloop transitions, 2 changer transitions 0/550 dead transitions. [2024-10-31 22:16:43,988 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 546 places, 550 transitions, 1143 flow [2024-10-31 22:16:43,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:16:43,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:16:43,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1782 transitions. [2024-10-31 22:16:43,994 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.954983922829582 [2024-10-31 22:16:43,994 INFO L175 Difference]: Start difference. First operand has 545 places, 549 transitions, 1111 flow. Second operand 3 states and 1782 transitions. [2024-10-31 22:16:43,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 546 places, 550 transitions, 1143 flow [2024-10-31 22:16:43,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 544 places, 550 transitions, 1139 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:16:44,007 INFO L231 Difference]: Finished difference. Result has 544 places, 548 transitions, 1109 flow [2024-10-31 22:16:44,008 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=622, PETRI_DIFFERENCE_MINUEND_FLOW=1105, PETRI_DIFFERENCE_MINUEND_PLACES=542, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=548, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=546, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1109, PETRI_PLACES=544, PETRI_TRANSITIONS=548} [2024-10-31 22:16:44,010 INFO L277 CegarLoopForPetriNet]: 577 programPoint places, -33 predicate places. [2024-10-31 22:16:44,011 INFO L471 AbstractCegarLoop]: Abstraction has has 544 places, 548 transitions, 1109 flow [2024-10-31 22:16:44,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 590.6666666666666) internal successors, (1772), 3 states have internal predecessors, (1772), 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 22:16:44,012 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:16:44,013 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:16:44,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-31 22:16:44,013 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 98 more)] === [2024-10-31 22:16:44,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:44,016 INFO L85 PathProgramCache]: Analyzing trace with hash -935044885, now seen corresponding path program 1 times [2024-10-31 22:16:44,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:44,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616574434] [2024-10-31 22:16:44,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:44,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:44,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:44,106 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 22:16:44,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:44,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616574434] [2024-10-31 22:16:44,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616574434] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:44,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:44,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:16:44,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614958829] [2024-10-31 22:16:44,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:44,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:16:44,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:44,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:16:44,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:16:44,130 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 588 out of 622 [2024-10-31 22:16:44,134 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 544 places, 548 transitions, 1109 flow. Second operand has 3 states, 3 states have (on average 589.6666666666666) internal successors, (1769), 3 states have internal predecessors, (1769), 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 22:16:44,134 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:16:44,134 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 588 of 622 [2024-10-31 22:16:44,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:16:44,477 INFO L124 PetriNetUnfolderBase]: 41/983 cut-off events. [2024-10-31 22:16:44,477 INFO L125 PetriNetUnfolderBase]: For 2/18 co-relation queries the response was YES. [2024-10-31 22:16:44,486 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1063 conditions, 983 events. 41/983 cut-off events. For 2/18 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 4257 event pairs, 12 based on Foata normal form. 1/872 useless extension candidates. Maximal degree in co-relation 1014. Up to 39 conditions per place. [2024-10-31 22:16:44,490 INFO L140 encePairwiseOnDemand]: 618/622 looper letters, 14 selfloop transitions, 3 changer transitions 0/551 dead transitions. [2024-10-31 22:16:44,490 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 546 places, 551 transitions, 1151 flow [2024-10-31 22:16:44,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:16:44,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:16:44,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1782 transitions. [2024-10-31 22:16:44,496 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.954983922829582 [2024-10-31 22:16:44,496 INFO L175 Difference]: Start difference. First operand has 544 places, 548 transitions, 1109 flow. Second operand 3 states and 1782 transitions. [2024-10-31 22:16:44,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 546 places, 551 transitions, 1151 flow [2024-10-31 22:16:44,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 544 places, 551 transitions, 1147 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:16:44,511 INFO L231 Difference]: Finished difference. Result has 546 places, 549 transitions, 1123 flow [2024-10-31 22:16:44,512 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=622, PETRI_DIFFERENCE_MINUEND_FLOW=1105, PETRI_DIFFERENCE_MINUEND_PLACES=542, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=548, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=545, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1123, PETRI_PLACES=546, PETRI_TRANSITIONS=549} [2024-10-31 22:16:44,513 INFO L277 CegarLoopForPetriNet]: 577 programPoint places, -31 predicate places. [2024-10-31 22:16:44,513 INFO L471 AbstractCegarLoop]: Abstraction has has 546 places, 549 transitions, 1123 flow [2024-10-31 22:16:44,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 589.6666666666666) internal successors, (1769), 3 states have internal predecessors, (1769), 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 22:16:44,515 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:16:44,515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:16:44,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-31 22:16:44,516 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread3Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 98 more)] === [2024-10-31 22:16:44,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:44,517 INFO L85 PathProgramCache]: Analyzing trace with hash 671881940, now seen corresponding path program 1 times [2024-10-31 22:16:44,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:44,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74575496] [2024-10-31 22:16:44,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:44,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:44,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:44,612 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 22:16:44,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:44,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74575496] [2024-10-31 22:16:44,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74575496] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:44,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:44,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:16:44,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801278498] [2024-10-31 22:16:44,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:44,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:16:44,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:44,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:16:44,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:16:44,635 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 589 out of 622 [2024-10-31 22:16:44,639 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 546 places, 549 transitions, 1123 flow. Second operand has 3 states, 3 states have (on average 591.0) internal successors, (1773), 3 states have internal predecessors, (1773), 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 22:16:44,639 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:16:44,639 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 589 of 622 [2024-10-31 22:16:44,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:16:44,881 INFO L124 PetriNetUnfolderBase]: 29/758 cut-off events. [2024-10-31 22:16:44,882 INFO L125 PetriNetUnfolderBase]: For 13/15 co-relation queries the response was YES. [2024-10-31 22:16:44,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 808 conditions, 758 events. 29/758 cut-off events. For 13/15 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2547 event pairs, 6 based on Foata normal form. 0/684 useless extension candidates. Maximal degree in co-relation 758. Up to 23 conditions per place. [2024-10-31 22:16:44,890 INFO L140 encePairwiseOnDemand]: 619/622 looper letters, 12 selfloop transitions, 2 changer transitions 0/550 dead transitions. [2024-10-31 22:16:44,891 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 547 places, 550 transitions, 1155 flow [2024-10-31 22:16:44,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:16:44,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:16:44,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1782 transitions. [2024-10-31 22:16:44,896 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.954983922829582 [2024-10-31 22:16:44,896 INFO L175 Difference]: Start difference. First operand has 546 places, 549 transitions, 1123 flow. Second operand 3 states and 1782 transitions. [2024-10-31 22:16:44,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 547 places, 550 transitions, 1155 flow [2024-10-31 22:16:44,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 545 places, 550 transitions, 1149 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:16:44,910 INFO L231 Difference]: Finished difference. Result has 545 places, 548 transitions, 1119 flow [2024-10-31 22:16:44,912 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=622, PETRI_DIFFERENCE_MINUEND_FLOW=1115, PETRI_DIFFERENCE_MINUEND_PLACES=543, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=548, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=546, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1119, PETRI_PLACES=545, PETRI_TRANSITIONS=548} [2024-10-31 22:16:44,913 INFO L277 CegarLoopForPetriNet]: 577 programPoint places, -32 predicate places. [2024-10-31 22:16:44,914 INFO L471 AbstractCegarLoop]: Abstraction has has 545 places, 548 transitions, 1119 flow [2024-10-31 22:16:44,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 591.0) internal successors, (1773), 3 states have internal predecessors, (1773), 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 22:16:44,915 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:16:44,916 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:16:44,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-31 22:16:44,916 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 98 more)] === [2024-10-31 22:16:44,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:44,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1955873248, now seen corresponding path program 1 times [2024-10-31 22:16:44,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:44,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457518646] [2024-10-31 22:16:44,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:44,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:44,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:45,018 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 22:16:45,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:45,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457518646] [2024-10-31 22:16:45,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457518646] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:45,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:45,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:16:45,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294725782] [2024-10-31 22:16:45,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:45,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:16:45,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:45,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:16:45,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:16:45,044 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 583 out of 622 [2024-10-31 22:16:45,047 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 545 places, 548 transitions, 1119 flow. Second operand has 3 states, 3 states have (on average 584.3333333333334) internal successors, (1753), 3 states have internal predecessors, (1753), 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 22:16:45,047 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:16:45,047 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 583 of 622 [2024-10-31 22:16:45,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:16:45,689 INFO L124 PetriNetUnfolderBase]: 86/1557 cut-off events. [2024-10-31 22:16:45,690 INFO L125 PetriNetUnfolderBase]: For 18/20 co-relation queries the response was YES. [2024-10-31 22:16:45,724 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1708 conditions, 1557 events. 86/1557 cut-off events. For 18/20 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 9007 event pairs, 12 based on Foata normal form. 0/1385 useless extension candidates. Maximal degree in co-relation 1658. Up to 99 conditions per place. [2024-10-31 22:16:45,737 INFO L140 encePairwiseOnDemand]: 616/622 looper letters, 20 selfloop transitions, 2 changer transitions 0/551 dead transitions. [2024-10-31 22:16:45,737 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 543 places, 551 transitions, 1174 flow [2024-10-31 22:16:45,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:16:45,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:16:45,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1775 transitions. [2024-10-31 22:16:45,743 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9512325830653805 [2024-10-31 22:16:45,743 INFO L175 Difference]: Start difference. First operand has 545 places, 548 transitions, 1119 flow. Second operand 3 states and 1775 transitions. [2024-10-31 22:16:45,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 543 places, 551 transitions, 1174 flow [2024-10-31 22:16:45,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 541 places, 551 transitions, 1170 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:16:45,756 INFO L231 Difference]: Finished difference. Result has 542 places, 546 transitions, 1121 flow [2024-10-31 22:16:45,757 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=622, PETRI_DIFFERENCE_MINUEND_FLOW=1107, PETRI_DIFFERENCE_MINUEND_PLACES=539, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=544, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=542, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1121, PETRI_PLACES=542, PETRI_TRANSITIONS=546} [2024-10-31 22:16:45,758 INFO L277 CegarLoopForPetriNet]: 577 programPoint places, -35 predicate places. [2024-10-31 22:16:45,758 INFO L471 AbstractCegarLoop]: Abstraction has has 542 places, 546 transitions, 1121 flow [2024-10-31 22:16:45,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 584.3333333333334) internal successors, (1753), 3 states have internal predecessors, (1753), 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 22:16:45,759 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:16:45,760 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:16:45,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-31 22:16:45,760 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 98 more)] === [2024-10-31 22:16:45,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:45,761 INFO L85 PathProgramCache]: Analyzing trace with hash 529790360, now seen corresponding path program 1 times [2024-10-31 22:16:45,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:45,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097907657] [2024-10-31 22:16:45,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:45,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:45,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:45,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:16:45,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:45,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097907657] [2024-10-31 22:16:45,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097907657] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:45,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:45,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:16:45,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931383338] [2024-10-31 22:16:45,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:45,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:16:45,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:45,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:16:45,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:16:45,857 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 588 out of 622 [2024-10-31 22:16:45,860 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 542 places, 546 transitions, 1121 flow. Second operand has 3 states, 3 states have (on average 590.0) internal successors, (1770), 3 states have internal predecessors, (1770), 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 22:16:45,861 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:16:45,861 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 588 of 622 [2024-10-31 22:16:45,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:16:46,385 INFO L124 PetriNetUnfolderBase]: 65/1229 cut-off events. [2024-10-31 22:16:46,385 INFO L125 PetriNetUnfolderBase]: For 22/85 co-relation queries the response was YES. [2024-10-31 22:16:46,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1348 conditions, 1229 events. 65/1229 cut-off events. For 22/85 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 6338 event pairs, 18 based on Foata normal form. 2/1092 useless extension candidates. Maximal degree in co-relation 1298. Up to 57 conditions per place. [2024-10-31 22:16:46,426 INFO L140 encePairwiseOnDemand]: 618/622 looper letters, 14 selfloop transitions, 3 changer transitions 0/549 dead transitions. [2024-10-31 22:16:46,426 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 544 places, 549 transitions, 1163 flow [2024-10-31 22:16:46,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:16:46,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:16:46,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1782 transitions. [2024-10-31 22:16:46,432 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.954983922829582 [2024-10-31 22:16:46,432 INFO L175 Difference]: Start difference. First operand has 542 places, 546 transitions, 1121 flow. Second operand 3 states and 1782 transitions. [2024-10-31 22:16:46,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 544 places, 549 transitions, 1163 flow [2024-10-31 22:16:46,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 544 places, 549 transitions, 1163 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:16:46,445 INFO L231 Difference]: Finished difference. Result has 546 places, 547 transitions, 1139 flow [2024-10-31 22:16:46,446 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=622, PETRI_DIFFERENCE_MINUEND_FLOW=1121, PETRI_DIFFERENCE_MINUEND_PLACES=542, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=546, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=543, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1139, PETRI_PLACES=546, PETRI_TRANSITIONS=547} [2024-10-31 22:16:46,446 INFO L277 CegarLoopForPetriNet]: 577 programPoint places, -31 predicate places. [2024-10-31 22:16:46,447 INFO L471 AbstractCegarLoop]: Abstraction has has 546 places, 547 transitions, 1139 flow [2024-10-31 22:16:46,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 590.0) internal successors, (1770), 3 states have internal predecessors, (1770), 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 22:16:46,449 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:16:46,449 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:16:46,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-31 22:16:46,450 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 98 more)] === [2024-10-31 22:16:46,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:46,450 INFO L85 PathProgramCache]: Analyzing trace with hash -299923418, now seen corresponding path program 1 times [2024-10-31 22:16:46,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:46,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488294705] [2024-10-31 22:16:46,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:46,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:46,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:46,539 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 22:16:46,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:46,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488294705] [2024-10-31 22:16:46,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488294705] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:46,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:46,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:16:46,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195521110] [2024-10-31 22:16:46,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:46,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:16:46,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:46,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:16:46,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:16:46,569 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 583 out of 622 [2024-10-31 22:16:46,576 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 546 places, 547 transitions, 1139 flow. Second operand has 3 states, 3 states have (on average 584.6666666666666) internal successors, (1754), 3 states have internal predecessors, (1754), 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 22:16:46,576 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:16:46,576 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 583 of 622 [2024-10-31 22:16:46,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand