/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/goblint-regression/09-regions_26-alloc_region_rc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 17:45:48,380 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 17:45:48,467 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-25 17:45:48,472 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 17:45:48,473 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 17:45:48,507 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 17:45:48,508 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 17:45:48,508 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 17:45:48,509 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 17:45:48,512 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 17:45:48,513 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 17:45:48,513 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 17:45:48,513 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 17:45:48,514 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 17:45:48,514 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 17:45:48,515 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 17:45:48,515 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 17:45:48,515 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 17:45:48,515 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 17:45:48,515 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 17:45:48,516 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 17:45:48,517 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 17:45:48,517 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 17:45:48,517 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 17:45:48,518 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 17:45:48,518 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 17:45:48,518 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 17:45:48,518 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 17:45:48,518 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 17:45:48,519 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 17:45:48,519 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 17:45:48,520 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 17:45:48,520 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 17:45:48,520 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 17:45:48,520 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 17:45:48,520 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 17:45:48,787 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 17:45:48,809 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 17:45:48,811 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 17:45:48,812 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 17:45:48,814 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 17:45:48,815 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/09-regions_26-alloc_region_rc.i [2023-08-25 17:45:50,005 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 17:45:50,312 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 17:45:50,313 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/09-regions_26-alloc_region_rc.i [2023-08-25 17:45:50,343 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/153a445f4/8983b066dc5142bdb60a1d7147f83436/FLAG35c35d778 [2023-08-25 17:45:50,356 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/153a445f4/8983b066dc5142bdb60a1d7147f83436 [2023-08-25 17:45:50,358 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 17:45:50,359 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 17:45:50,360 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 17:45:50,360 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 17:45:50,362 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 17:45:50,363 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:45:50" (1/1) ... [2023-08-25 17:45:50,363 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71a4d902 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:45:50, skipping insertion in model container [2023-08-25 17:45:50,364 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:45:50" (1/1) ... [2023-08-25 17:45:50,401 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 17:45:50,932 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 17:45:50,948 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 17:45:50,971 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 17:45:50,973 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 17:45:50,987 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [1044] [2023-08-25 17:45:51,022 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 17:45:51,106 INFO L206 MainTranslator]: Completed translation [2023-08-25 17:45:51,107 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:45:51 WrapperNode [2023-08-25 17:45:51,107 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 17:45:51,108 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 17:45:51,108 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 17:45:51,108 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 17:45:51,114 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:45:51" (1/1) ... [2023-08-25 17:45:51,152 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:45:51" (1/1) ... [2023-08-25 17:45:51,200 INFO L138 Inliner]: procedures = 370, calls = 46, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 236 [2023-08-25 17:45:51,201 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 17:45:51,203 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 17:45:51,204 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 17:45:51,204 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 17:45:51,211 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:45:51" (1/1) ... [2023-08-25 17:45:51,211 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:45:51" (1/1) ... [2023-08-25 17:45:51,228 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:45:51" (1/1) ... [2023-08-25 17:45:51,228 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:45:51" (1/1) ... [2023-08-25 17:45:51,265 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:45:51" (1/1) ... [2023-08-25 17:45:51,276 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:45:51" (1/1) ... [2023-08-25 17:45:51,278 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:45:51" (1/1) ... [2023-08-25 17:45:51,280 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:45:51" (1/1) ... [2023-08-25 17:45:51,283 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 17:45:51,284 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 17:45:51,284 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 17:45:51,284 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 17:45:51,297 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:45:51" (1/1) ... [2023-08-25 17:45:51,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 17:45:51,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 17:45:51,334 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-25 17:45:51,385 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-25 17:45:51,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 17:45:51,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-25 17:45:51,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 17:45:51,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-08-25 17:45:51,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 17:45:51,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 17:45:51,404 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 17:45:51,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-25 17:45:51,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 17:45:51,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-25 17:45:51,405 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-25 17:45:51,405 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-25 17:45:51,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 17:45:51,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 17:45:51,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 17:45:51,408 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 17:45:51,576 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 17:45:51,578 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 17:45:51,925 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 17:45:51,933 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 17:45:51,933 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-08-25 17:45:51,935 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:45:51 BoogieIcfgContainer [2023-08-25 17:45:51,935 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 17:45:51,937 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 17:45:51,937 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 17:45:51,940 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 17:45:51,940 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 05:45:50" (1/3) ... [2023-08-25 17:45:51,945 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56b0cf6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:45:51, skipping insertion in model container [2023-08-25 17:45:51,945 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:45:51" (2/3) ... [2023-08-25 17:45:51,946 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56b0cf6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:45:51, skipping insertion in model container [2023-08-25 17:45:51,946 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:45:51" (3/3) ... [2023-08-25 17:45:51,947 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_26-alloc_region_rc.i [2023-08-25 17:45:51,965 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 17:45:51,965 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2023-08-25 17:45:51,966 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 17:45:52,062 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 17:45:52,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 264 places, 262 transitions, 529 flow [2023-08-25 17:45:52,213 INFO L124 PetriNetUnfolderBase]: 2/261 cut-off events. [2023-08-25 17:45:52,214 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:45:52,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 265 conditions, 261 events. 2/261 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 247 event pairs, 0 based on Foata normal form. 0/239 useless extension candidates. Maximal degree in co-relation 192. Up to 2 conditions per place. [2023-08-25 17:45:52,218 INFO L82 GeneralOperation]: Start removeDead. Operand has 264 places, 262 transitions, 529 flow [2023-08-25 17:45:52,230 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 263 places, 261 transitions, 525 flow [2023-08-25 17:45:52,234 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 17:45:52,246 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 263 places, 261 transitions, 525 flow [2023-08-25 17:45:52,250 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 263 places, 261 transitions, 525 flow [2023-08-25 17:45:52,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 263 places, 261 transitions, 525 flow [2023-08-25 17:45:52,348 INFO L124 PetriNetUnfolderBase]: 2/261 cut-off events. [2023-08-25 17:45:52,348 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:45:52,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 265 conditions, 261 events. 2/261 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 247 event pairs, 0 based on Foata normal form. 0/239 useless extension candidates. Maximal degree in co-relation 192. Up to 2 conditions per place. [2023-08-25 17:45:52,360 INFO L119 LiptonReduction]: Number of co-enabled transitions 18144 [2023-08-25 17:46:07,842 WARN L234 SmtUtils]: Spent 7.22s on a formula simplification. DAG size of input: 125 DAG size of output: 120 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 17:46:16,521 WARN L234 SmtUtils]: Spent 6.48s on a formula simplification. DAG size of input: 125 DAG size of output: 120 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 17:46:28,465 WARN L234 SmtUtils]: Spent 9.46s on a formula simplification that was a NOOP. DAG size: 182 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 17:46:34,959 WARN L234 SmtUtils]: Spent 6.49s on a formula simplification that was a NOOP. DAG size: 164 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 17:46:44,798 WARN L234 SmtUtils]: Spent 9.84s on a formula simplification that was a NOOP. DAG size: 182 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 17:46:50,996 WARN L234 SmtUtils]: Spent 6.19s on a formula simplification that was a NOOP. DAG size: 164 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 17:46:56,319 WARN L234 SmtUtils]: Spent 5.31s on a formula simplification. DAG size of input: 216 DAG size of output: 214 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 17:47:05,988 INFO L134 LiptonReduction]: Checked pairs total: 144406 [2023-08-25 17:47:05,989 INFO L136 LiptonReduction]: Total number of compositions: 148 [2023-08-25 17:47:06,007 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 17:47:06,013 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@78cbf8a3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 17:47:06,013 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2023-08-25 17:47:06,014 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 17:47:06,014 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 17:47:06,014 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:47:06,015 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:47:06,015 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 17:47:06,015 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-25 17:47:06,020 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:47:06,020 INFO L85 PathProgramCache]: Analyzing trace with hash 796, now seen corresponding path program 1 times [2023-08-25 17:47:06,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:47:06,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665609057] [2023-08-25 17:47:06,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:47:06,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:47:06,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:47:06,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:47:06,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:47:06,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665609057] [2023-08-25 17:47:06,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665609057] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:47:06,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:47:06,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 17:47:06,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646824559] [2023-08-25 17:47:06,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:47:06,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 17:47:06,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:47:06,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 17:47:06,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 17:47:06,171 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 260 out of 410 [2023-08-25 17:47:06,175 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 132 transitions, 267 flow. Second operand has 2 states, 2 states have (on average 260.5) internal successors, (521), 2 states have internal predecessors, (521), 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) [2023-08-25 17:47:06,175 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:47:06,175 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 260 of 410 [2023-08-25 17:47:06,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:47:06,471 INFO L124 PetriNetUnfolderBase]: 379/1728 cut-off events. [2023-08-25 17:47:06,471 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:47:06,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2512 conditions, 1728 events. 379/1728 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 11594 event pairs, 360 based on Foata normal form. 19/1664 useless extension candidates. Maximal degree in co-relation 2503. Up to 780 conditions per place. [2023-08-25 17:47:06,483 INFO L140 encePairwiseOnDemand]: 405/410 looper letters, 41 selfloop transitions, 0 changer transitions 0/127 dead transitions. [2023-08-25 17:47:06,483 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 127 transitions, 339 flow [2023-08-25 17:47:06,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 17:47:06,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 17:47:06,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 566 transitions. [2023-08-25 17:47:06,503 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6902439024390243 [2023-08-25 17:47:06,504 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 566 transitions. [2023-08-25 17:47:06,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 566 transitions. [2023-08-25 17:47:06,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:47:06,509 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 566 transitions. [2023-08-25 17:47:06,514 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 283.0) internal successors, (566), 2 states have internal predecessors, (566), 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) [2023-08-25 17:47:06,520 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 410.0) internal successors, (1230), 3 states have internal predecessors, (1230), 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) [2023-08-25 17:47:06,520 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 410.0) internal successors, (1230), 3 states have internal predecessors, (1230), 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) [2023-08-25 17:47:06,522 INFO L175 Difference]: Start difference. First operand has 134 places, 132 transitions, 267 flow. Second operand 2 states and 566 transitions. [2023-08-25 17:47:06,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 127 transitions, 339 flow [2023-08-25 17:47:06,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 127 transitions, 338 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 17:47:06,528 INFO L231 Difference]: Finished difference. Result has 130 places, 127 transitions, 256 flow [2023-08-25 17:47:06,530 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=256, PETRI_PLACES=130, PETRI_TRANSITIONS=127} [2023-08-25 17:47:06,533 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, -4 predicate places. [2023-08-25 17:47:06,533 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 127 transitions, 256 flow [2023-08-25 17:47:06,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 260.5) internal successors, (521), 2 states have internal predecessors, (521), 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) [2023-08-25 17:47:06,534 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:47:06,534 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:47:06,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 17:47:06,534 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-25 17:47:06,535 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:47:06,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1766698446, now seen corresponding path program 1 times [2023-08-25 17:47:06,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:47:06,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479412550] [2023-08-25 17:47:06,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:47:06,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:47:06,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:47:07,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:47:07,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:47:07,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479412550] [2023-08-25 17:47:07,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479412550] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:47:07,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:47:07,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 17:47:07,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664629857] [2023-08-25 17:47:07,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:47:07,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:47:07,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:47:07,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:47:07,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:47:07,304 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 410 [2023-08-25 17:47:07,305 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 127 transitions, 256 flow. Second operand has 6 states, 6 states have (on average 135.5) internal successors, (813), 6 states have internal predecessors, (813), 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) [2023-08-25 17:47:07,305 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:47:07,305 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 410 [2023-08-25 17:47:07,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:47:08,960 INFO L124 PetriNetUnfolderBase]: 3570/7519 cut-off events. [2023-08-25 17:47:08,961 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:47:08,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14728 conditions, 7519 events. 3570/7519 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 44649 event pairs, 2986 based on Foata normal form. 0/6497 useless extension candidates. Maximal degree in co-relation 14725. Up to 6837 conditions per place. [2023-08-25 17:47:08,998 INFO L140 encePairwiseOnDemand]: 368/410 looper letters, 229 selfloop transitions, 149 changer transitions 0/387 dead transitions. [2023-08-25 17:47:08,998 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 387 transitions, 1532 flow [2023-08-25 17:47:08,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 17:47:08,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 17:47:09,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1183 transitions. [2023-08-25 17:47:09,002 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48089430894308943 [2023-08-25 17:47:09,002 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1183 transitions. [2023-08-25 17:47:09,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1183 transitions. [2023-08-25 17:47:09,003 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:47:09,003 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1183 transitions. [2023-08-25 17:47:09,006 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 197.16666666666666) internal successors, (1183), 6 states have internal predecessors, (1183), 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) [2023-08-25 17:47:09,011 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 410.0) internal successors, (2870), 7 states have internal predecessors, (2870), 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) [2023-08-25 17:47:09,012 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 410.0) internal successors, (2870), 7 states have internal predecessors, (2870), 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) [2023-08-25 17:47:09,013 INFO L175 Difference]: Start difference. First operand has 130 places, 127 transitions, 256 flow. Second operand 6 states and 1183 transitions. [2023-08-25 17:47:09,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 387 transitions, 1532 flow [2023-08-25 17:47:09,019 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 387 transitions, 1532 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 17:47:09,024 INFO L231 Difference]: Finished difference. Result has 139 places, 275 transitions, 1084 flow [2023-08-25 17:47:09,025 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1084, PETRI_PLACES=139, PETRI_TRANSITIONS=275} [2023-08-25 17:47:09,025 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 5 predicate places. [2023-08-25 17:47:09,026 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 275 transitions, 1084 flow [2023-08-25 17:47:09,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 135.5) internal successors, (813), 6 states have internal predecessors, (813), 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) [2023-08-25 17:47:09,026 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:47:09,026 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:47:09,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 17:47:09,027 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-25 17:47:09,027 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:47:09,027 INFO L85 PathProgramCache]: Analyzing trace with hash 917157654, now seen corresponding path program 1 times [2023-08-25 17:47:09,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:47:09,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418241814] [2023-08-25 17:47:09,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:47:09,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:47:09,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:47:09,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:47:09,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:47:09,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418241814] [2023-08-25 17:47:09,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418241814] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:47:09,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:47:09,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 17:47:09,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204820364] [2023-08-25 17:47:09,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:47:09,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:47:09,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:47:09,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:47:09,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:47:09,370 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 410 [2023-08-25 17:47:09,371 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 275 transitions, 1084 flow. Second operand has 6 states, 6 states have (on average 129.5) internal successors, (777), 6 states have internal predecessors, (777), 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) [2023-08-25 17:47:09,371 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:47:09,371 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 410 [2023-08-25 17:47:09,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:47:10,748 INFO L124 PetriNetUnfolderBase]: 3818/8038 cut-off events. [2023-08-25 17:47:10,749 INFO L125 PetriNetUnfolderBase]: For 1459/1459 co-relation queries the response was YES. [2023-08-25 17:47:10,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19006 conditions, 8038 events. 3818/8038 cut-off events. For 1459/1459 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 48149 event pairs, 2925 based on Foata normal form. 0/6985 useless extension candidates. Maximal degree in co-relation 18998. Up to 7399 conditions per place. [2023-08-25 17:47:10,792 INFO L140 encePairwiseOnDemand]: 376/410 looper letters, 358 selfloop transitions, 121 changer transitions 0/487 dead transitions. [2023-08-25 17:47:10,792 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 487 transitions, 2524 flow [2023-08-25 17:47:10,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 17:47:10,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 17:47:10,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1100 transitions. [2023-08-25 17:47:10,795 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44715447154471544 [2023-08-25 17:47:10,795 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1100 transitions. [2023-08-25 17:47:10,796 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1100 transitions. [2023-08-25 17:47:10,796 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:47:10,796 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1100 transitions. [2023-08-25 17:47:10,799 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 183.33333333333334) internal successors, (1100), 6 states have internal predecessors, (1100), 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) [2023-08-25 17:47:10,802 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 410.0) internal successors, (2870), 7 states have internal predecessors, (2870), 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) [2023-08-25 17:47:10,804 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 410.0) internal successors, (2870), 7 states have internal predecessors, (2870), 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) [2023-08-25 17:47:10,804 INFO L175 Difference]: Start difference. First operand has 139 places, 275 transitions, 1084 flow. Second operand 6 states and 1100 transitions. [2023-08-25 17:47:10,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 487 transitions, 2524 flow [2023-08-25 17:47:10,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 487 transitions, 2524 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 17:47:10,820 INFO L231 Difference]: Finished difference. Result has 148 places, 391 transitions, 1790 flow [2023-08-25 17:47:10,820 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=1084, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1790, PETRI_PLACES=148, PETRI_TRANSITIONS=391} [2023-08-25 17:47:10,821 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 14 predicate places. [2023-08-25 17:47:10,821 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 391 transitions, 1790 flow [2023-08-25 17:47:10,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 129.5) internal successors, (777), 6 states have internal predecessors, (777), 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) [2023-08-25 17:47:10,822 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:47:10,822 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:47:10,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 17:47:10,822 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-25 17:47:10,823 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:47:10,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1255662643, now seen corresponding path program 1 times [2023-08-25 17:47:10,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:47:10,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972920770] [2023-08-25 17:47:10,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:47:10,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:47:10,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:47:11,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:47:11,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:47:11,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972920770] [2023-08-25 17:47:11,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972920770] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:47:11,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:47:11,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-25 17:47:11,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219584144] [2023-08-25 17:47:11,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:47:11,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 17:47:11,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:47:11,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 17:47:11,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-08-25 17:47:11,294 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 410 [2023-08-25 17:47:11,295 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 391 transitions, 1790 flow. Second operand has 11 states, 11 states have (on average 107.0909090909091) internal successors, (1178), 11 states have internal predecessors, (1178), 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) [2023-08-25 17:47:11,295 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:47:11,295 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 410 [2023-08-25 17:47:11,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:47:16,102 INFO L124 PetriNetUnfolderBase]: 12808/26487 cut-off events. [2023-08-25 17:47:16,102 INFO L125 PetriNetUnfolderBase]: For 11188/11190 co-relation queries the response was YES. [2023-08-25 17:47:16,179 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73391 conditions, 26487 events. 12808/26487 cut-off events. For 11188/11190 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 211489 event pairs, 1503 based on Foata normal form. 2/23058 useless extension candidates. Maximal degree in co-relation 73378. Up to 7964 conditions per place. [2023-08-25 17:47:16,277 INFO L140 encePairwiseOnDemand]: 370/410 looper letters, 1632 selfloop transitions, 168 changer transitions 4/1809 dead transitions. [2023-08-25 17:47:16,278 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 1809 transitions, 11555 flow [2023-08-25 17:47:16,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-08-25 17:47:16,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-08-25 17:47:16,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3038 transitions. [2023-08-25 17:47:16,286 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3704878048780488 [2023-08-25 17:47:16,286 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 3038 transitions. [2023-08-25 17:47:16,286 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 3038 transitions. [2023-08-25 17:47:16,288 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:47:16,288 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 3038 transitions. [2023-08-25 17:47:16,295 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 151.9) internal successors, (3038), 20 states have internal predecessors, (3038), 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) [2023-08-25 17:47:16,307 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 410.0) internal successors, (8610), 21 states have internal predecessors, (8610), 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) [2023-08-25 17:47:16,309 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 410.0) internal successors, (8610), 21 states have internal predecessors, (8610), 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) [2023-08-25 17:47:16,309 INFO L175 Difference]: Start difference. First operand has 148 places, 391 transitions, 1790 flow. Second operand 20 states and 3038 transitions. [2023-08-25 17:47:16,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 1809 transitions, 11555 flow [2023-08-25 17:47:16,417 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 1809 transitions, 11381 flow, removed 87 selfloop flow, removed 0 redundant places. [2023-08-25 17:47:16,435 INFO L231 Difference]: Finished difference. Result has 185 places, 559 transitions, 3560 flow [2023-08-25 17:47:16,436 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=1760, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=391, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=247, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=3560, PETRI_PLACES=185, PETRI_TRANSITIONS=559} [2023-08-25 17:47:16,438 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 51 predicate places. [2023-08-25 17:47:16,438 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 559 transitions, 3560 flow [2023-08-25 17:47:16,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 107.0909090909091) internal successors, (1178), 11 states have internal predecessors, (1178), 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) [2023-08-25 17:47:16,438 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:47:16,439 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:47:16,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 17:47:16,439 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-25 17:47:16,440 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:47:16,440 INFO L85 PathProgramCache]: Analyzing trace with hash -920409819, now seen corresponding path program 2 times [2023-08-25 17:47:16,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:47:16,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254647338] [2023-08-25 17:47:16,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:47:16,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:47:16,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:47:16,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:47:16,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:47:16,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254647338] [2023-08-25 17:47:16,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254647338] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:47:16,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:47:16,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-25 17:47:16,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371083075] [2023-08-25 17:47:16,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:47:16,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 17:47:16,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:47:16,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 17:47:16,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-08-25 17:47:16,936 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 410 [2023-08-25 17:47:16,937 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 559 transitions, 3560 flow. Second operand has 11 states, 11 states have (on average 107.0909090909091) internal successors, (1178), 11 states have internal predecessors, (1178), 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) [2023-08-25 17:47:16,937 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:47:16,937 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 410 [2023-08-25 17:47:16,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:47:23,234 INFO L124 PetriNetUnfolderBase]: 16610/34424 cut-off events. [2023-08-25 17:47:23,234 INFO L125 PetriNetUnfolderBase]: For 30637/30637 co-relation queries the response was YES. [2023-08-25 17:47:23,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102680 conditions, 34424 events. 16610/34424 cut-off events. For 30637/30637 co-relation queries the response was YES. Maximal size of possible extension queue 354. Compared 287747 event pairs, 2538 based on Foata normal form. 0/30246 useless extension candidates. Maximal degree in co-relation 102648. Up to 19688 conditions per place. [2023-08-25 17:47:23,490 INFO L140 encePairwiseOnDemand]: 368/410 looper letters, 1201 selfloop transitions, 206 changer transitions 4/1416 dead transitions. [2023-08-25 17:47:23,490 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 1416 transitions, 10291 flow [2023-08-25 17:47:23,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-08-25 17:47:23,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-08-25 17:47:23,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3239 transitions. [2023-08-25 17:47:23,501 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.34347826086956523 [2023-08-25 17:47:23,501 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 3239 transitions. [2023-08-25 17:47:23,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 3239 transitions. [2023-08-25 17:47:23,503 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:47:23,503 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 3239 transitions. [2023-08-25 17:47:23,508 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 140.82608695652175) internal successors, (3239), 23 states have internal predecessors, (3239), 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) [2023-08-25 17:47:23,520 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 410.0) internal successors, (9840), 24 states have internal predecessors, (9840), 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) [2023-08-25 17:47:23,524 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 410.0) internal successors, (9840), 24 states have internal predecessors, (9840), 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) [2023-08-25 17:47:23,524 INFO L175 Difference]: Start difference. First operand has 185 places, 559 transitions, 3560 flow. Second operand 23 states and 3239 transitions. [2023-08-25 17:47:23,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 1416 transitions, 10291 flow [2023-08-25 17:47:23,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 1416 transitions, 10291 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 17:47:23,791 INFO L231 Difference]: Finished difference. Result has 225 places, 749 transitions, 6039 flow [2023-08-25 17:47:23,792 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=3560, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=559, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=396, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=6039, PETRI_PLACES=225, PETRI_TRANSITIONS=749} [2023-08-25 17:47:23,794 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 91 predicate places. [2023-08-25 17:47:23,795 INFO L495 AbstractCegarLoop]: Abstraction has has 225 places, 749 transitions, 6039 flow [2023-08-25 17:47:23,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 107.0909090909091) internal successors, (1178), 11 states have internal predecessors, (1178), 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) [2023-08-25 17:47:23,795 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:47:23,796 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:47:23,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 17:47:23,799 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-25 17:47:23,799 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:47:23,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1530874218, now seen corresponding path program 1 times [2023-08-25 17:47:23,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:47:23,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843078711] [2023-08-25 17:47:23,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:47:23,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:47:23,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:47:24,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:47:24,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:47:24,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843078711] [2023-08-25 17:47:24,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843078711] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:47:24,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:47:24,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-25 17:47:24,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221176781] [2023-08-25 17:47:24,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:47:24,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 17:47:24,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:47:24,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 17:47:24,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-25 17:47:24,387 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 410 [2023-08-25 17:47:24,389 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 749 transitions, 6039 flow. Second operand has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 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) [2023-08-25 17:47:24,389 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:47:24,389 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 410 [2023-08-25 17:47:24,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:47:31,793 INFO L124 PetriNetUnfolderBase]: 16626/34440 cut-off events. [2023-08-25 17:47:31,793 INFO L125 PetriNetUnfolderBase]: For 54299/54315 co-relation queries the response was YES. [2023-08-25 17:47:31,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109108 conditions, 34440 events. 16626/34440 cut-off events. For 54299/54315 co-relation queries the response was YES. Maximal size of possible extension queue 356. Compared 281491 event pairs, 10064 based on Foata normal form. 16/30260 useless extension candidates. Maximal degree in co-relation 109057. Up to 23283 conditions per place. [2023-08-25 17:47:32,113 INFO L140 encePairwiseOnDemand]: 370/410 looper letters, 785 selfloop transitions, 196 changer transitions 2/988 dead transitions. [2023-08-25 17:47:32,115 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 988 transitions, 9096 flow [2023-08-25 17:47:32,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-25 17:47:32,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-25 17:47:32,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1497 transitions. [2023-08-25 17:47:32,119 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3651219512195122 [2023-08-25 17:47:32,119 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1497 transitions. [2023-08-25 17:47:32,119 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1497 transitions. [2023-08-25 17:47:32,120 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:47:32,120 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1497 transitions. [2023-08-25 17:47:32,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 149.7) internal successors, (1497), 10 states have internal predecessors, (1497), 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) [2023-08-25 17:47:32,127 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 410.0) internal successors, (4510), 11 states have internal predecessors, (4510), 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) [2023-08-25 17:47:32,128 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 410.0) internal successors, (4510), 11 states have internal predecessors, (4510), 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) [2023-08-25 17:47:32,128 INFO L175 Difference]: Start difference. First operand has 225 places, 749 transitions, 6039 flow. Second operand 10 states and 1497 transitions. [2023-08-25 17:47:32,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 988 transitions, 9096 flow [2023-08-25 17:47:32,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 988 transitions, 8648 flow, removed 224 selfloop flow, removed 0 redundant places. [2023-08-25 17:47:32,661 INFO L231 Difference]: Finished difference. Result has 237 places, 756 transitions, 6121 flow [2023-08-25 17:47:32,662 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=5625, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=749, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=189, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=555, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=6121, PETRI_PLACES=237, PETRI_TRANSITIONS=756} [2023-08-25 17:47:32,662 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 103 predicate places. [2023-08-25 17:47:32,662 INFO L495 AbstractCegarLoop]: Abstraction has has 237 places, 756 transitions, 6121 flow [2023-08-25 17:47:32,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 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) [2023-08-25 17:47:32,663 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:47:32,663 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:47:32,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 17:47:32,663 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-25 17:47:32,664 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:47:32,664 INFO L85 PathProgramCache]: Analyzing trace with hash 471163734, now seen corresponding path program 2 times [2023-08-25 17:47:32,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:47:32,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590359364] [2023-08-25 17:47:32,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:47:32,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:47:32,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:47:33,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:47:33,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:47:33,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590359364] [2023-08-25 17:47:33,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590359364] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:47:33,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:47:33,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-25 17:47:33,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891788200] [2023-08-25 17:47:33,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:47:33,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 17:47:33,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:47:33,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 17:47:33,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-08-25 17:47:33,053 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 410 [2023-08-25 17:47:33,054 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 756 transitions, 6121 flow. Second operand has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 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) [2023-08-25 17:47:33,054 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:47:33,055 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 410 [2023-08-25 17:47:33,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:47:41,726 INFO L124 PetriNetUnfolderBase]: 17957/36992 cut-off events. [2023-08-25 17:47:41,726 INFO L125 PetriNetUnfolderBase]: For 58111/58111 co-relation queries the response was YES. [2023-08-25 17:47:42,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119450 conditions, 36992 events. 17957/36992 cut-off events. For 58111/58111 co-relation queries the response was YES. Maximal size of possible extension queue 383. Compared 308130 event pairs, 5554 based on Foata normal form. 0/32437 useless extension candidates. Maximal degree in co-relation 119395. Up to 27638 conditions per place. [2023-08-25 17:47:42,158 INFO L140 encePairwiseOnDemand]: 378/410 looper letters, 1468 selfloop transitions, 145 changer transitions 4/1622 dead transitions. [2023-08-25 17:47:42,158 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 1622 transitions, 14218 flow [2023-08-25 17:47:42,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-25 17:47:42,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-25 17:47:42,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2026 transitions. [2023-08-25 17:47:42,170 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4117886178861789 [2023-08-25 17:47:42,170 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2026 transitions. [2023-08-25 17:47:42,170 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2026 transitions. [2023-08-25 17:47:42,171 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:47:42,171 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2026 transitions. [2023-08-25 17:47:42,175 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 168.83333333333334) internal successors, (2026), 12 states have internal predecessors, (2026), 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) [2023-08-25 17:47:42,182 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 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) [2023-08-25 17:47:42,183 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 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) [2023-08-25 17:47:42,184 INFO L175 Difference]: Start difference. First operand has 237 places, 756 transitions, 6121 flow. Second operand 12 states and 2026 transitions. [2023-08-25 17:47:42,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 1622 transitions, 14218 flow [2023-08-25 17:47:42,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 1622 transitions, 13632 flow, removed 1 selfloop flow, removed 6 redundant places. [2023-08-25 17:47:42,748 INFO L231 Difference]: Finished difference. Result has 249 places, 875 transitions, 7242 flow [2023-08-25 17:47:42,749 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=5773, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=756, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=616, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=7242, PETRI_PLACES=249, PETRI_TRANSITIONS=875} [2023-08-25 17:47:42,749 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 115 predicate places. [2023-08-25 17:47:42,750 INFO L495 AbstractCegarLoop]: Abstraction has has 249 places, 875 transitions, 7242 flow [2023-08-25 17:47:42,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 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) [2023-08-25 17:47:42,750 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:47:42,750 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:47:42,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 17:47:42,751 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-25 17:47:42,751 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:47:42,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1945509048, now seen corresponding path program 3 times [2023-08-25 17:47:42,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:47:42,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778338701] [2023-08-25 17:47:42,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:47:42,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:47:42,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:47:43,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:47:43,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:47:43,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778338701] [2023-08-25 17:47:43,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778338701] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:47:43,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:47:43,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-25 17:47:43,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907669539] [2023-08-25 17:47:43,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:47:43,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 17:47:43,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:47:43,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 17:47:43,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-08-25 17:47:43,266 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 410 [2023-08-25 17:47:43,267 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 875 transitions, 7242 flow. Second operand has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 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) [2023-08-25 17:47:43,267 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:47:43,267 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 410 [2023-08-25 17:47:43,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:47:52,878 INFO L124 PetriNetUnfolderBase]: 19347/39947 cut-off events. [2023-08-25 17:47:52,878 INFO L125 PetriNetUnfolderBase]: For 73111/73115 co-relation queries the response was YES. [2023-08-25 17:47:53,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132039 conditions, 39947 events. 19347/39947 cut-off events. For 73111/73115 co-relation queries the response was YES. Maximal size of possible extension queue 408. Compared 336871 event pairs, 4995 based on Foata normal form. 4/34995 useless extension candidates. Maximal degree in co-relation 131977. Up to 15333 conditions per place. [2023-08-25 17:47:53,363 INFO L140 encePairwiseOnDemand]: 370/410 looper letters, 1361 selfloop transitions, 277 changer transitions 4/1647 dead transitions. [2023-08-25 17:47:53,363 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 1647 transitions, 14902 flow [2023-08-25 17:47:53,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-25 17:47:53,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-25 17:47:53,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1983 transitions. [2023-08-25 17:47:53,368 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4030487804878049 [2023-08-25 17:47:53,368 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1983 transitions. [2023-08-25 17:47:53,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1983 transitions. [2023-08-25 17:47:53,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:47:53,370 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1983 transitions. [2023-08-25 17:47:53,374 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 165.25) internal successors, (1983), 12 states have internal predecessors, (1983), 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) [2023-08-25 17:47:53,380 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 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) [2023-08-25 17:47:53,382 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 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) [2023-08-25 17:47:53,382 INFO L175 Difference]: Start difference. First operand has 249 places, 875 transitions, 7242 flow. Second operand 12 states and 1983 transitions. [2023-08-25 17:47:53,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 1647 transitions, 14902 flow [2023-08-25 17:47:54,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 1647 transitions, 14851 flow, removed 16 selfloop flow, removed 1 redundant places. [2023-08-25 17:47:54,154 INFO L231 Difference]: Finished difference. Result has 266 places, 1004 transitions, 9524 flow [2023-08-25 17:47:54,155 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=7199, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=875, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=148, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=601, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=9524, PETRI_PLACES=266, PETRI_TRANSITIONS=1004} [2023-08-25 17:47:54,155 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 132 predicate places. [2023-08-25 17:47:54,155 INFO L495 AbstractCegarLoop]: Abstraction has has 266 places, 1004 transitions, 9524 flow [2023-08-25 17:47:54,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 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) [2023-08-25 17:47:54,156 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:47:54,156 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:47:54,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 17:47:54,157 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-25 17:47:54,157 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:47:54,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1284896658, now seen corresponding path program 4 times [2023-08-25 17:47:54,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:47:54,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401621907] [2023-08-25 17:47:54,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:47:54,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:47:54,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:47:54,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:47:54,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:47:54,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401621907] [2023-08-25 17:47:54,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401621907] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:47:54,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:47:54,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-25 17:47:54,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324163769] [2023-08-25 17:47:54,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:47:54,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 17:47:54,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:47:54,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 17:47:54,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-08-25 17:47:54,661 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 410 [2023-08-25 17:47:54,662 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 1004 transitions, 9524 flow. Second operand has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 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) [2023-08-25 17:47:54,662 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:47:54,662 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 410 [2023-08-25 17:47:54,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:48:05,234 INFO L124 PetriNetUnfolderBase]: 19383/39996 cut-off events. [2023-08-25 17:48:05,234 INFO L125 PetriNetUnfolderBase]: For 85202/85226 co-relation queries the response was YES. [2023-08-25 17:48:05,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136951 conditions, 39996 events. 19383/39996 cut-off events. For 85202/85226 co-relation queries the response was YES. Maximal size of possible extension queue 407. Compared 332389 event pairs, 12071 based on Foata normal form. 24/35052 useless extension candidates. Maximal degree in co-relation 136882. Up to 23297 conditions per place. [2023-08-25 17:48:05,757 INFO L140 encePairwiseOnDemand]: 370/410 looper letters, 832 selfloop transitions, 429 changer transitions 2/1268 dead transitions. [2023-08-25 17:48:05,757 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 1268 transitions, 13419 flow [2023-08-25 17:48:05,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-25 17:48:05,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-25 17:48:05,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1723 transitions. [2023-08-25 17:48:05,762 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.35020325203252034 [2023-08-25 17:48:05,762 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1723 transitions. [2023-08-25 17:48:05,762 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1723 transitions. [2023-08-25 17:48:05,763 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:48:05,763 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1723 transitions. [2023-08-25 17:48:05,766 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 143.58333333333334) internal successors, (1723), 12 states have internal predecessors, (1723), 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) [2023-08-25 17:48:05,771 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 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) [2023-08-25 17:48:05,772 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 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) [2023-08-25 17:48:05,772 INFO L175 Difference]: Start difference. First operand has 266 places, 1004 transitions, 9524 flow. Second operand 12 states and 1723 transitions. [2023-08-25 17:48:05,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 277 places, 1268 transitions, 13419 flow [2023-08-25 17:48:06,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 1268 transitions, 13342 flow, removed 31 selfloop flow, removed 1 redundant places. [2023-08-25 17:48:06,523 INFO L231 Difference]: Finished difference. Result has 282 places, 1021 transitions, 10743 flow [2023-08-25 17:48:06,524 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=9450, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1004, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=412, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=581, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=10743, PETRI_PLACES=282, PETRI_TRANSITIONS=1021} [2023-08-25 17:48:06,525 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 148 predicate places. [2023-08-25 17:48:06,525 INFO L495 AbstractCegarLoop]: Abstraction has has 282 places, 1021 transitions, 10743 flow [2023-08-25 17:48:06,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 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) [2023-08-25 17:48:06,526 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:48:06,526 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:48:06,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 17:48:06,526 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-25 17:48:06,530 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:48:06,530 INFO L85 PathProgramCache]: Analyzing trace with hash 182703382, now seen corresponding path program 5 times [2023-08-25 17:48:06,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:48:06,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102613917] [2023-08-25 17:48:06,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:48:06,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:48:06,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:48:06,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:48:06,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:48:06,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102613917] [2023-08-25 17:48:06,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102613917] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:48:06,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:48:06,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-25 17:48:06,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108351165] [2023-08-25 17:48:06,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:48:06,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 17:48:06,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:48:06,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 17:48:06,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-08-25 17:48:06,863 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 410 [2023-08-25 17:48:06,864 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 1021 transitions, 10743 flow. Second operand has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 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) [2023-08-25 17:48:06,864 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:48:06,864 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 410 [2023-08-25 17:48:06,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:48:17,925 INFO L124 PetriNetUnfolderBase]: 19455/40158 cut-off events. [2023-08-25 17:48:17,925 INFO L125 PetriNetUnfolderBase]: For 99139/99143 co-relation queries the response was YES. [2023-08-25 17:48:18,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142409 conditions, 40158 events. 19455/40158 cut-off events. For 99139/99143 co-relation queries the response was YES. Maximal size of possible extension queue 407. Compared 340769 event pairs, 2650 based on Foata normal form. 4/35201 useless extension candidates. Maximal degree in co-relation 142334. Up to 19683 conditions per place. [2023-08-25 17:48:18,449 INFO L140 encePairwiseOnDemand]: 377/410 looper letters, 1501 selfloop transitions, 178 changer transitions 4/1688 dead transitions. [2023-08-25 17:48:18,450 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 1688 transitions, 17996 flow [2023-08-25 17:48:18,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-25 17:48:18,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-25 17:48:18,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2171 transitions. [2023-08-25 17:48:18,454 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3782229965156794 [2023-08-25 17:48:18,454 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2171 transitions. [2023-08-25 17:48:18,454 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2171 transitions. [2023-08-25 17:48:18,454 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:48:18,454 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2171 transitions. [2023-08-25 17:48:18,458 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 155.07142857142858) internal successors, (2171), 14 states have internal predecessors, (2171), 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) [2023-08-25 17:48:18,464 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 410.0) internal successors, (6150), 15 states have internal predecessors, (6150), 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) [2023-08-25 17:48:18,465 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 410.0) internal successors, (6150), 15 states have internal predecessors, (6150), 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) [2023-08-25 17:48:18,465 INFO L175 Difference]: Start difference. First operand has 282 places, 1021 transitions, 10743 flow. Second operand 14 states and 2171 transitions. [2023-08-25 17:48:18,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 1688 transitions, 17996 flow [2023-08-25 17:48:19,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 290 places, 1688 transitions, 17114 flow, removed 32 selfloop flow, removed 5 redundant places. [2023-08-25 17:48:19,355 INFO L231 Difference]: Finished difference. Result has 295 places, 1130 transitions, 12013 flow [2023-08-25 17:48:19,356 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=10035, PETRI_DIFFERENCE_MINUEND_PLACES=277, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1021, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=846, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=12013, PETRI_PLACES=295, PETRI_TRANSITIONS=1130} [2023-08-25 17:48:19,357 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 161 predicate places. [2023-08-25 17:48:19,357 INFO L495 AbstractCegarLoop]: Abstraction has has 295 places, 1130 transitions, 12013 flow [2023-08-25 17:48:19,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 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) [2023-08-25 17:48:19,358 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:48:19,358 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:48:19,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 17:48:19,358 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-25 17:48:19,358 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:48:19,358 INFO L85 PathProgramCache]: Analyzing trace with hash -494380147, now seen corresponding path program 3 times [2023-08-25 17:48:19,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:48:19,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719354318] [2023-08-25 17:48:19,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:48:19,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:48:19,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:48:19,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:48:19,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:48:19,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719354318] [2023-08-25 17:48:19,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719354318] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:48:19,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:48:19,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-25 17:48:19,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553395705] [2023-08-25 17:48:19,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:48:19,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 17:48:19,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:48:19,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 17:48:19,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-08-25 17:48:19,686 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 410 [2023-08-25 17:48:19,687 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 1130 transitions, 12013 flow. Second operand has 11 states, 11 states have (on average 107.0909090909091) internal successors, (1178), 11 states have internal predecessors, (1178), 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) [2023-08-25 17:48:19,687 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:48:19,688 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 410 [2023-08-25 17:48:19,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:48:32,529 INFO L124 PetriNetUnfolderBase]: 19437/40008 cut-off events. [2023-08-25 17:48:32,530 INFO L125 PetriNetUnfolderBase]: For 122456/122462 co-relation queries the response was YES. [2023-08-25 17:48:32,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144878 conditions, 40008 events. 19437/40008 cut-off events. For 122456/122462 co-relation queries the response was YES. Maximal size of possible extension queue 408. Compared 338546 event pairs, 4549 based on Foata normal form. 6/35075 useless extension candidates. Maximal degree in co-relation 144798. Up to 28861 conditions per place. [2023-08-25 17:48:33,056 INFO L140 encePairwiseOnDemand]: 362/410 looper letters, 1387 selfloop transitions, 670 changer transitions 4/2066 dead transitions. [2023-08-25 17:48:33,057 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 326 places, 2066 transitions, 21389 flow [2023-08-25 17:48:33,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-08-25 17:48:33,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2023-08-25 17:48:33,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 4526 transitions. [2023-08-25 17:48:33,065 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.34496951219512195 [2023-08-25 17:48:33,065 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 4526 transitions. [2023-08-25 17:48:33,065 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 4526 transitions. [2023-08-25 17:48:33,066 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:48:33,066 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 4526 transitions. [2023-08-25 17:48:33,073 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 141.4375) internal successors, (4526), 32 states have internal predecessors, (4526), 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) [2023-08-25 17:48:33,086 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 410.0) internal successors, (13530), 33 states have internal predecessors, (13530), 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) [2023-08-25 17:48:33,088 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 410.0) internal successors, (13530), 33 states have internal predecessors, (13530), 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) [2023-08-25 17:48:33,089 INFO L175 Difference]: Start difference. First operand has 295 places, 1130 transitions, 12013 flow. Second operand 32 states and 4526 transitions. [2023-08-25 17:48:33,089 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 326 places, 2066 transitions, 21389 flow [2023-08-25 17:48:34,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 2066 transitions, 20873 flow, removed 182 selfloop flow, removed 7 redundant places. [2023-08-25 17:48:34,173 INFO L231 Difference]: Finished difference. Result has 327 places, 1324 transitions, 15581 flow [2023-08-25 17:48:34,174 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=11609, PETRI_DIFFERENCE_MINUEND_PLACES=288, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=476, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=621, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=15581, PETRI_PLACES=327, PETRI_TRANSITIONS=1324} [2023-08-25 17:48:34,174 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 193 predicate places. [2023-08-25 17:48:34,175 INFO L495 AbstractCegarLoop]: Abstraction has has 327 places, 1324 transitions, 15581 flow [2023-08-25 17:48:34,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 107.0909090909091) internal successors, (1178), 11 states have internal predecessors, (1178), 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) [2023-08-25 17:48:34,175 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:48:34,175 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:48:34,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-25 17:48:34,175 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-25 17:48:34,176 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:48:34,176 INFO L85 PathProgramCache]: Analyzing trace with hash 895307170, now seen corresponding path program 6 times [2023-08-25 17:48:34,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:48:34,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286229341] [2023-08-25 17:48:34,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:48:34,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:48:34,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:48:34,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:48:34,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:48:34,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286229341] [2023-08-25 17:48:34,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286229341] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:48:34,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:48:34,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-25 17:48:34,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735985825] [2023-08-25 17:48:34,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:48:34,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 17:48:34,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:48:34,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 17:48:34,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-08-25 17:48:34,532 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 410 [2023-08-25 17:48:34,533 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 1324 transitions, 15581 flow. Second operand has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 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) [2023-08-25 17:48:34,533 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:48:34,533 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 410 [2023-08-25 17:48:34,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:48:46,598 INFO L124 PetriNetUnfolderBase]: 19458/40158 cut-off events. [2023-08-25 17:48:46,598 INFO L125 PetriNetUnfolderBase]: For 140393/140421 co-relation queries the response was YES. [2023-08-25 17:48:47,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150659 conditions, 40158 events. 19458/40158 cut-off events. For 140393/140421 co-relation queries the response was YES. Maximal size of possible extension queue 407. Compared 333742 event pairs, 12019 based on Foata normal form. 28/35228 useless extension candidates. Maximal degree in co-relation 150571. Up to 23490 conditions per place. [2023-08-25 17:48:47,389 INFO L140 encePairwiseOnDemand]: 370/410 looper letters, 968 selfloop transitions, 541 changer transitions 2/1516 dead transitions. [2023-08-25 17:48:47,390 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 1516 transitions, 19846 flow [2023-08-25 17:48:47,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-25 17:48:47,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-25 17:48:47,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1402 transitions. [2023-08-25 17:48:47,392 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.34195121951219515 [2023-08-25 17:48:47,392 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1402 transitions. [2023-08-25 17:48:47,392 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1402 transitions. [2023-08-25 17:48:47,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:48:47,393 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1402 transitions. [2023-08-25 17:48:47,395 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 140.2) internal successors, (1402), 10 states have internal predecessors, (1402), 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) [2023-08-25 17:48:47,398 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 410.0) internal successors, (4510), 11 states have internal predecessors, (4510), 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) [2023-08-25 17:48:47,398 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 410.0) internal successors, (4510), 11 states have internal predecessors, (4510), 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) [2023-08-25 17:48:47,398 INFO L175 Difference]: Start difference. First operand has 327 places, 1324 transitions, 15581 flow. Second operand 10 states and 1402 transitions. [2023-08-25 17:48:47,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 1516 transitions, 19846 flow [2023-08-25 17:48:48,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 1516 transitions, 18933 flow, removed 409 selfloop flow, removed 4 redundant places. [2023-08-25 17:48:48,924 INFO L231 Difference]: Finished difference. Result has 337 places, 1336 transitions, 16396 flow [2023-08-25 17:48:48,925 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=14732, PETRI_DIFFERENCE_MINUEND_PLACES=323, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1324, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=530, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=788, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=16396, PETRI_PLACES=337, PETRI_TRANSITIONS=1336} [2023-08-25 17:48:48,925 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 203 predicate places. [2023-08-25 17:48:48,926 INFO L495 AbstractCegarLoop]: Abstraction has has 337 places, 1336 transitions, 16396 flow [2023-08-25 17:48:48,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 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) [2023-08-25 17:48:48,926 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:48:48,926 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:48:48,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-25 17:48:48,926 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-25 17:48:48,927 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:48:48,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1045145788, now seen corresponding path program 7 times [2023-08-25 17:48:48,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:48:48,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640911465] [2023-08-25 17:48:48,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:48:48,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:48:48,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:48:49,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:48:49,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:48:49,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640911465] [2023-08-25 17:48:49,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640911465] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:48:49,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:48:49,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-25 17:48:49,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824530130] [2023-08-25 17:48:49,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:48:49,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 17:48:49,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:48:49,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 17:48:49,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-08-25 17:48:49,247 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 410 [2023-08-25 17:48:49,248 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 1336 transitions, 16396 flow. Second operand has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 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) [2023-08-25 17:48:49,248 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:48:49,248 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 410 [2023-08-25 17:48:49,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:49:01,444 INFO L124 PetriNetUnfolderBase]: 19605/40511 cut-off events. [2023-08-25 17:49:01,444 INFO L125 PetriNetUnfolderBase]: For 133428/133436 co-relation queries the response was YES. [2023-08-25 17:49:01,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152833 conditions, 40511 events. 19605/40511 cut-off events. For 133428/133436 co-relation queries the response was YES. Maximal size of possible extension queue 410. Compared 343483 event pairs, 3297 based on Foata normal form. 8/35550 useless extension candidates. Maximal degree in co-relation 152739. Up to 19647 conditions per place. [2023-08-25 17:49:02,052 INFO L140 encePairwiseOnDemand]: 369/410 looper letters, 1611 selfloop transitions, 226 changer transitions 4/1846 dead transitions. [2023-08-25 17:49:02,053 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 348 places, 1846 transitions, 23455 flow [2023-08-25 17:49:02,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-25 17:49:02,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-25 17:49:02,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1818 transitions. [2023-08-25 17:49:02,055 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3695121951219512 [2023-08-25 17:49:02,055 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1818 transitions. [2023-08-25 17:49:02,055 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1818 transitions. [2023-08-25 17:49:02,055 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:49:02,055 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1818 transitions. [2023-08-25 17:49:02,057 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 151.5) internal successors, (1818), 12 states have internal predecessors, (1818), 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) [2023-08-25 17:49:02,059 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 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) [2023-08-25 17:49:02,060 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 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) [2023-08-25 17:49:02,060 INFO L175 Difference]: Start difference. First operand has 337 places, 1336 transitions, 16396 flow. Second operand 12 states and 1818 transitions. [2023-08-25 17:49:02,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 348 places, 1846 transitions, 23455 flow [2023-08-25 17:49:03,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 343 places, 1846 transitions, 22484 flow, removed 34 selfloop flow, removed 5 redundant places. [2023-08-25 17:49:03,476 INFO L231 Difference]: Finished difference. Result has 349 places, 1386 transitions, 17037 flow [2023-08-25 17:49:03,477 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=15482, PETRI_DIFFERENCE_MINUEND_PLACES=332, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1336, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=178, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=17037, PETRI_PLACES=349, PETRI_TRANSITIONS=1386} [2023-08-25 17:49:03,478 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 215 predicate places. [2023-08-25 17:49:03,478 INFO L495 AbstractCegarLoop]: Abstraction has has 349 places, 1386 transitions, 17037 flow [2023-08-25 17:49:03,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 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) [2023-08-25 17:49:03,478 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:49:03,478 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:49:03,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-25 17:49:03,479 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-25 17:49:03,479 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:49:03,479 INFO L85 PathProgramCache]: Analyzing trace with hash -2009927556, now seen corresponding path program 8 times [2023-08-25 17:49:03,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:49:03,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740547870] [2023-08-25 17:49:03,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:49:03,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:49:03,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:49:03,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:49:03,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:49:03,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740547870] [2023-08-25 17:49:03,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740547870] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:49:03,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:49:03,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-25 17:49:03,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549635496] [2023-08-25 17:49:03,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:49:03,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 17:49:03,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:49:03,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 17:49:03,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-08-25 17:49:03,792 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 410 [2023-08-25 17:49:03,793 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 1386 transitions, 17037 flow. Second operand has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 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) [2023-08-25 17:49:03,793 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:49:03,793 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 410 [2023-08-25 17:49:03,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:49:16,839 INFO L124 PetriNetUnfolderBase]: 19680/40642 cut-off events. [2023-08-25 17:49:16,839 INFO L125 PetriNetUnfolderBase]: For 175463/175471 co-relation queries the response was YES. [2023-08-25 17:49:17,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156528 conditions, 40642 events. 19680/40642 cut-off events. For 175463/175471 co-relation queries the response was YES. Maximal size of possible extension queue 409. Compared 342893 event pairs, 5335 based on Foata normal form. 27/35964 useless extension candidates. Maximal degree in co-relation 156429. Up to 15885 conditions per place. [2023-08-25 17:49:17,708 INFO L140 encePairwiseOnDemand]: 378/410 looper letters, 2247 selfloop transitions, 176 changer transitions 6/2434 dead transitions. [2023-08-25 17:49:17,708 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 362 places, 2434 transitions, 29582 flow [2023-08-25 17:49:17,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-25 17:49:17,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-25 17:49:17,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2387 transitions. [2023-08-25 17:49:17,711 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41585365853658535 [2023-08-25 17:49:17,711 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2387 transitions. [2023-08-25 17:49:17,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2387 transitions. [2023-08-25 17:49:17,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:49:17,712 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2387 transitions. [2023-08-25 17:49:17,714 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 170.5) internal successors, (2387), 14 states have internal predecessors, (2387), 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) [2023-08-25 17:49:17,717 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 410.0) internal successors, (6150), 15 states have internal predecessors, (6150), 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) [2023-08-25 17:49:17,717 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 410.0) internal successors, (6150), 15 states have internal predecessors, (6150), 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) [2023-08-25 17:49:17,717 INFO L175 Difference]: Start difference. First operand has 349 places, 1386 transitions, 17037 flow. Second operand 14 states and 2387 transitions. [2023-08-25 17:49:17,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 362 places, 2434 transitions, 29582 flow [2023-08-25 17:49:19,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 359 places, 2434 transitions, 29267 flow, removed 116 selfloop flow, removed 3 redundant places. [2023-08-25 17:49:19,317 INFO L231 Difference]: Finished difference. Result has 366 places, 1497 transitions, 19161 flow [2023-08-25 17:49:19,318 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=16722, PETRI_DIFFERENCE_MINUEND_PLACES=346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1386, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=19161, PETRI_PLACES=366, PETRI_TRANSITIONS=1497} [2023-08-25 17:49:19,319 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 232 predicate places. [2023-08-25 17:49:19,319 INFO L495 AbstractCegarLoop]: Abstraction has has 366 places, 1497 transitions, 19161 flow [2023-08-25 17:49:19,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 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) [2023-08-25 17:49:19,319 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:49:19,319 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:49:19,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-25 17:49:19,319 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-25 17:49:19,320 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:49:19,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1952860698, now seen corresponding path program 9 times [2023-08-25 17:49:19,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:49:19,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672889109] [2023-08-25 17:49:19,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:49:19,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:49:19,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:49:19,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:49:19,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:49:19,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672889109] [2023-08-25 17:49:19,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672889109] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:49:19,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:49:19,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-25 17:49:19,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465883968] [2023-08-25 17:49:19,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:49:19,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 17:49:19,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:49:19,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 17:49:19,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-08-25 17:49:19,642 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 410 [2023-08-25 17:49:19,642 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 366 places, 1497 transitions, 19161 flow. Second operand has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 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) [2023-08-25 17:49:19,643 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:49:19,643 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 410 [2023-08-25 17:49:19,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:49:34,501 INFO L124 PetriNetUnfolderBase]: 19715/40729 cut-off events. [2023-08-25 17:49:34,501 INFO L125 PetriNetUnfolderBase]: For 216512/216524 co-relation queries the response was YES. [2023-08-25 17:49:35,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161055 conditions, 40729 events. 19715/40729 cut-off events. For 216512/216524 co-relation queries the response was YES. Maximal size of possible extension queue 408. Compared 342915 event pairs, 6066 based on Foata normal form. 31/36051 useless extension candidates. Maximal degree in co-relation 160949. Up to 15885 conditions per place. [2023-08-25 17:49:35,474 INFO L140 encePairwiseOnDemand]: 370/410 looper letters, 1747 selfloop transitions, 411 changer transitions 4/2167 dead transitions. [2023-08-25 17:49:35,475 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 378 places, 2167 transitions, 27990 flow [2023-08-25 17:49:35,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-25 17:49:35,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-25 17:49:35,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2104 transitions. [2023-08-25 17:49:35,477 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3947467166979362 [2023-08-25 17:49:35,477 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2104 transitions. [2023-08-25 17:49:35,477 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2104 transitions. [2023-08-25 17:49:35,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:49:35,477 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2104 transitions. [2023-08-25 17:49:35,479 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 161.84615384615384) internal successors, (2104), 13 states have internal predecessors, (2104), 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) [2023-08-25 17:49:35,483 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 410.0) internal successors, (5740), 14 states have internal predecessors, (5740), 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) [2023-08-25 17:49:35,483 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 410.0) internal successors, (5740), 14 states have internal predecessors, (5740), 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) [2023-08-25 17:49:35,483 INFO L175 Difference]: Start difference. First operand has 366 places, 1497 transitions, 19161 flow. Second operand 13 states and 2104 transitions. [2023-08-25 17:49:35,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 378 places, 2167 transitions, 27990 flow [2023-08-25 17:49:37,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 374 places, 2167 transitions, 27493 flow, removed 205 selfloop flow, removed 4 redundant places. [2023-08-25 17:49:37,371 INFO L231 Difference]: Finished difference. Result has 378 places, 1510 transitions, 19985 flow [2023-08-25 17:49:37,372 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=18670, PETRI_DIFFERENCE_MINUEND_PLACES=362, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1497, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=398, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1089, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=19985, PETRI_PLACES=378, PETRI_TRANSITIONS=1510} [2023-08-25 17:49:37,372 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 244 predicate places. [2023-08-25 17:49:37,373 INFO L495 AbstractCegarLoop]: Abstraction has has 378 places, 1510 transitions, 19985 flow [2023-08-25 17:49:37,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 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) [2023-08-25 17:49:37,373 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:49:37,373 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:49:37,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-25 17:49:37,373 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-25 17:49:37,373 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:49:37,373 INFO L85 PathProgramCache]: Analyzing trace with hash 337311342, now seen corresponding path program 10 times [2023-08-25 17:49:37,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:49:37,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961202495] [2023-08-25 17:49:37,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:49:37,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:49:37,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:49:37,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:49:37,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:49:37,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961202495] [2023-08-25 17:49:37,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961202495] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:49:37,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:49:37,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-25 17:49:37,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790243127] [2023-08-25 17:49:37,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:49:37,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 17:49:37,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:49:37,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 17:49:37,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-08-25 17:49:37,677 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 410 [2023-08-25 17:49:37,677 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 378 places, 1510 transitions, 19985 flow. Second operand has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 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) [2023-08-25 17:49:37,677 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:49:37,678 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 410 [2023-08-25 17:49:37,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:49:50,961 INFO L124 PetriNetUnfolderBase]: 19768/40778 cut-off events. [2023-08-25 17:49:50,961 INFO L125 PetriNetUnfolderBase]: For 238655/238687 co-relation queries the response was YES. [2023-08-25 17:49:51,799 INFO L83 FinitePrefix]: Finished finitePrefix Result has 164555 conditions, 40778 events. 19768/40778 cut-off events. For 238655/238687 co-relation queries the response was YES. Maximal size of possible extension queue 407. Compared 339093 event pairs, 12043 based on Foata normal form. 50/36102 useless extension candidates. Maximal degree in co-relation 164445. Up to 23794 conditions per place. [2023-08-25 17:49:51,911 INFO L140 encePairwiseOnDemand]: 370/410 looper letters, 1080 selfloop transitions, 680 changer transitions 2/1767 dead transitions. [2023-08-25 17:49:51,911 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 387 places, 1767 transitions, 25788 flow [2023-08-25 17:49:51,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-25 17:49:51,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-25 17:49:51,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1396 transitions. [2023-08-25 17:49:51,913 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3404878048780488 [2023-08-25 17:49:51,914 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1396 transitions. [2023-08-25 17:49:51,914 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1396 transitions. [2023-08-25 17:49:51,914 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:49:51,914 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1396 transitions. [2023-08-25 17:49:51,916 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 139.6) internal successors, (1396), 10 states have internal predecessors, (1396), 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) [2023-08-25 17:49:51,918 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 410.0) internal successors, (4510), 11 states have internal predecessors, (4510), 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) [2023-08-25 17:49:51,919 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 410.0) internal successors, (4510), 11 states have internal predecessors, (4510), 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) [2023-08-25 17:49:51,919 INFO L175 Difference]: Start difference. First operand has 378 places, 1510 transitions, 19985 flow. Second operand 10 states and 1396 transitions. [2023-08-25 17:49:51,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 387 places, 1767 transitions, 25788 flow [2023-08-25 17:49:53,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 1767 transitions, 25024 flow, removed 72 selfloop flow, removed 7 redundant places. [2023-08-25 17:49:53,687 INFO L231 Difference]: Finished difference. Result has 386 places, 1545 transitions, 22075 flow [2023-08-25 17:49:53,688 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=19223, PETRI_DIFFERENCE_MINUEND_PLACES=371, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1510, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=649, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=837, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=22075, PETRI_PLACES=386, PETRI_TRANSITIONS=1545} [2023-08-25 17:49:53,688 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 252 predicate places. [2023-08-25 17:49:53,689 INFO L495 AbstractCegarLoop]: Abstraction has has 386 places, 1545 transitions, 22075 flow [2023-08-25 17:49:53,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 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) [2023-08-25 17:49:53,689 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:49:53,689 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:49:53,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-25 17:49:53,689 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-25 17:49:53,690 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:49:53,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1186330089, now seen corresponding path program 4 times [2023-08-25 17:49:53,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:49:53,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910185852] [2023-08-25 17:49:53,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:49:53,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:49:53,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:49:53,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:49:53,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:49:53,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910185852] [2023-08-25 17:49:53,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910185852] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:49:53,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:49:53,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-25 17:49:53,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623263900] [2023-08-25 17:49:53,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:49:53,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 17:49:53,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:49:53,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 17:49:53,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-08-25 17:49:53,973 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 410 [2023-08-25 17:49:53,974 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 386 places, 1545 transitions, 22075 flow. Second operand has 11 states, 11 states have (on average 107.0909090909091) internal successors, (1178), 11 states have internal predecessors, (1178), 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) [2023-08-25 17:49:53,974 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:49:53,974 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 410 [2023-08-25 17:49:53,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:50:08,595 INFO L124 PetriNetUnfolderBase]: 19745/40771 cut-off events. [2023-08-25 17:50:08,595 INFO L125 PetriNetUnfolderBase]: For 264356/264356 co-relation queries the response was YES. [2023-08-25 17:50:09,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167487 conditions, 40771 events. 19745/40771 cut-off events. For 264356/264356 co-relation queries the response was YES. Maximal size of possible extension queue 408. Compared 343521 event pairs, 5346 based on Foata normal form. 0/36083 useless extension candidates. Maximal degree in co-relation 167371. Up to 15991 conditions per place. [2023-08-25 17:50:09,372 INFO L140 encePairwiseOnDemand]: 370/410 looper letters, 2296 selfloop transitions, 227 changer transitions 6/2534 dead transitions. [2023-08-25 17:50:09,372 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 407 places, 2534 transitions, 34192 flow [2023-08-25 17:50:09,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-08-25 17:50:09,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-08-25 17:50:09,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3335 transitions. [2023-08-25 17:50:09,376 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3697339246119734 [2023-08-25 17:50:09,376 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 3335 transitions. [2023-08-25 17:50:09,376 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 3335 transitions. [2023-08-25 17:50:09,377 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:50:09,377 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 3335 transitions. [2023-08-25 17:50:09,381 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 151.5909090909091) internal successors, (3335), 22 states have internal predecessors, (3335), 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) [2023-08-25 17:50:09,386 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 410.0) internal successors, (9430), 23 states have internal predecessors, (9430), 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) [2023-08-25 17:50:09,387 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 410.0) internal successors, (9430), 23 states have internal predecessors, (9430), 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) [2023-08-25 17:50:09,387 INFO L175 Difference]: Start difference. First operand has 386 places, 1545 transitions, 22075 flow. Second operand 22 states and 3335 transitions. [2023-08-25 17:50:09,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 407 places, 2534 transitions, 34192 flow [2023-08-25 17:50:11,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 407 places, 2534 transitions, 33554 flow, removed 319 selfloop flow, removed 0 redundant places. [2023-08-25 17:50:11,902 INFO L231 Difference]: Finished difference. Result has 421 places, 1697 transitions, 24721 flow [2023-08-25 17:50:11,903 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=21657, PETRI_DIFFERENCE_MINUEND_PLACES=386, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1545, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1329, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=24721, PETRI_PLACES=421, PETRI_TRANSITIONS=1697} [2023-08-25 17:50:11,903 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 287 predicate places. [2023-08-25 17:50:11,904 INFO L495 AbstractCegarLoop]: Abstraction has has 421 places, 1697 transitions, 24721 flow [2023-08-25 17:50:11,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 107.0909090909091) internal successors, (1178), 11 states have internal predecessors, (1178), 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) [2023-08-25 17:50:11,904 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:50:11,904 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:50:11,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-25 17:50:11,904 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-25 17:50:11,905 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:50:11,905 INFO L85 PathProgramCache]: Analyzing trace with hash 187460550, now seen corresponding path program 11 times [2023-08-25 17:50:11,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:50:11,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157527707] [2023-08-25 17:50:11,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:50:11,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:50:11,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:50:12,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:50:12,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:50:12,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157527707] [2023-08-25 17:50:12,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157527707] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:50:12,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:50:12,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-25 17:50:12,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612036271] [2023-08-25 17:50:12,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:50:12,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 17:50:12,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:50:12,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 17:50:12,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-08-25 17:50:12,205 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 410 [2023-08-25 17:50:12,206 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 421 places, 1697 transitions, 24721 flow. Second operand has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 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) [2023-08-25 17:50:12,206 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:50:12,206 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 410 [2023-08-25 17:50:12,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:50:27,700 INFO L124 PetriNetUnfolderBase]: 19779/40800 cut-off events. [2023-08-25 17:50:27,700 INFO L125 PetriNetUnfolderBase]: For 253854/253862 co-relation queries the response was YES. [2023-08-25 17:50:28,465 INFO L83 FinitePrefix]: Finished finitePrefix Result has 169366 conditions, 40800 events. 19779/40800 cut-off events. For 253854/253862 co-relation queries the response was YES. Maximal size of possible extension queue 409. Compared 344488 event pairs, 4144 based on Foata normal form. 26/36133 useless extension candidates. Maximal degree in co-relation 169235. Up to 19821 conditions per place. [2023-08-25 17:50:28,579 INFO L140 encePairwiseOnDemand]: 369/410 looper letters, 1924 selfloop transitions, 232 changer transitions 4/2165 dead transitions. [2023-08-25 17:50:28,579 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 432 places, 2165 transitions, 32037 flow [2023-08-25 17:50:28,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-25 17:50:28,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-25 17:50:28,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1851 transitions. [2023-08-25 17:50:28,582 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37621951219512195 [2023-08-25 17:50:28,582 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1851 transitions. [2023-08-25 17:50:28,582 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1851 transitions. [2023-08-25 17:50:28,582 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:50:28,582 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1851 transitions. [2023-08-25 17:50:28,584 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 154.25) internal successors, (1851), 12 states have internal predecessors, (1851), 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) [2023-08-25 17:50:28,588 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 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) [2023-08-25 17:50:28,588 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 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) [2023-08-25 17:50:28,588 INFO L175 Difference]: Start difference. First operand has 421 places, 1697 transitions, 24721 flow. Second operand 12 states and 1851 transitions. [2023-08-25 17:50:28,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 432 places, 2165 transitions, 32037 flow [2023-08-25 17:50:31,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 2165 transitions, 31145 flow, removed 354 selfloop flow, removed 8 redundant places. [2023-08-25 17:50:31,140 INFO L231 Difference]: Finished difference. Result has 429 places, 1719 transitions, 24951 flow [2023-08-25 17:50:31,141 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=23833, PETRI_DIFFERENCE_MINUEND_PLACES=413, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1697, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=211, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1469, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=24951, PETRI_PLACES=429, PETRI_TRANSITIONS=1719} [2023-08-25 17:50:31,141 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 295 predicate places. [2023-08-25 17:50:31,141 INFO L495 AbstractCegarLoop]: Abstraction has has 429 places, 1719 transitions, 24951 flow [2023-08-25 17:50:31,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 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) [2023-08-25 17:50:31,142 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:50:31,142 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:50:31,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-25 17:50:31,142 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-25 17:50:31,142 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:50:31,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1147485150, now seen corresponding path program 12 times [2023-08-25 17:50:31,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:50:31,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722886335] [2023-08-25 17:50:31,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:50:31,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:50:31,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:50:31,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:50:31,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:50:31,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722886335] [2023-08-25 17:50:31,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722886335] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:50:31,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:50:31,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-25 17:50:31,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958719235] [2023-08-25 17:50:31,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:50:31,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 17:50:31,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:50:31,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 17:50:31,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-08-25 17:50:31,434 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 410 [2023-08-25 17:50:31,435 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 1719 transitions, 24951 flow. Second operand has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 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) [2023-08-25 17:50:31,435 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:50:31,435 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 410 [2023-08-25 17:50:31,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:50:46,776 INFO L124 PetriNetUnfolderBase]: 19832/40920 cut-off events. [2023-08-25 17:50:46,777 INFO L125 PetriNetUnfolderBase]: For 257113/257125 co-relation queries the response was YES. [2023-08-25 17:50:47,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 170214 conditions, 40920 events. 19832/40920 cut-off events. For 257113/257125 co-relation queries the response was YES. Maximal size of possible extension queue 409. Compared 345538 event pairs, 5078 based on Foata normal form. 30/36258 useless extension candidates. Maximal degree in co-relation 170079. Up to 16059 conditions per place. [2023-08-25 17:50:47,735 INFO L140 encePairwiseOnDemand]: 370/410 looper letters, 1814 selfloop transitions, 440 changer transitions 4/2263 dead transitions. [2023-08-25 17:50:47,736 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 2263 transitions, 33299 flow [2023-08-25 17:50:47,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-25 17:50:47,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-25 17:50:47,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1882 transitions. [2023-08-25 17:50:47,738 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.382520325203252 [2023-08-25 17:50:47,738 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1882 transitions. [2023-08-25 17:50:47,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1882 transitions. [2023-08-25 17:50:47,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:50:47,738 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1882 transitions. [2023-08-25 17:50:47,740 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 156.83333333333334) internal successors, (1882), 12 states have internal predecessors, (1882), 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) [2023-08-25 17:50:47,743 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 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) [2023-08-25 17:50:47,743 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 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) [2023-08-25 17:50:47,743 INFO L175 Difference]: Start difference. First operand has 429 places, 1719 transitions, 24951 flow. Second operand 12 states and 1882 transitions. [2023-08-25 17:50:47,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 2263 transitions, 33299 flow [2023-08-25 17:50:50,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 436 places, 2263 transitions, 32927 flow, removed 122 selfloop flow, removed 4 redundant places. [2023-08-25 17:50:50,720 INFO L231 Difference]: Finished difference. Result has 441 places, 1752 transitions, 26762 flow [2023-08-25 17:50:50,721 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=24579, PETRI_DIFFERENCE_MINUEND_PLACES=425, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1719, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=410, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1285, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=26762, PETRI_PLACES=441, PETRI_TRANSITIONS=1752} [2023-08-25 17:50:50,722 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 307 predicate places. [2023-08-25 17:50:50,722 INFO L495 AbstractCegarLoop]: Abstraction has has 441 places, 1752 transitions, 26762 flow [2023-08-25 17:50:50,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 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) [2023-08-25 17:50:50,722 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:50:50,722 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:50:50,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-25 17:50:50,722 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-25 17:50:50,723 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:50:50,723 INFO L85 PathProgramCache]: Analyzing trace with hash -2005001128, now seen corresponding path program 13 times [2023-08-25 17:50:50,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:50:50,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48391281] [2023-08-25 17:50:50,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:50:50,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:50:50,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:50:51,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:50:51,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:50:51,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48391281] [2023-08-25 17:50:51,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48391281] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:50:51,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:50:51,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-25 17:50:51,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617303697] [2023-08-25 17:50:51,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:50:51,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 17:50:51,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:50:51,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 17:50:51,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-08-25 17:50:51,011 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 410 [2023-08-25 17:50:51,012 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 1752 transitions, 26762 flow. Second operand has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 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) [2023-08-25 17:50:51,012 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:50:51,012 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 410 [2023-08-25 17:50:51,012 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:51:07,405 INFO L124 PetriNetUnfolderBase]: 19814/40800 cut-off events. [2023-08-25 17:51:07,406 INFO L125 PetriNetUnfolderBase]: For 281788/281800 co-relation queries the response was YES. [2023-08-25 17:51:08,276 INFO L83 FinitePrefix]: Finished finitePrefix Result has 172640 conditions, 40800 events. 19814/40800 cut-off events. For 281788/281800 co-relation queries the response was YES. Maximal size of possible extension queue 408. Compared 341800 event pairs, 6076 based on Foata normal form. 30/36138 useless extension candidates. Maximal degree in co-relation 172500. Up to 16059 conditions per place. [2023-08-25 17:51:08,390 INFO L140 encePairwiseOnDemand]: 370/410 looper letters, 1857 selfloop transitions, 454 changer transitions 4/2320 dead transitions. [2023-08-25 17:51:08,391 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 2320 transitions, 34700 flow [2023-08-25 17:51:08,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-25 17:51:08,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-25 17:51:08,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2223 transitions. [2023-08-25 17:51:08,393 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3872822299651568 [2023-08-25 17:51:08,393 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2223 transitions. [2023-08-25 17:51:08,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2223 transitions. [2023-08-25 17:51:08,394 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:51:08,394 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2223 transitions. [2023-08-25 17:51:08,396 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 158.78571428571428) internal successors, (2223), 14 states have internal predecessors, (2223), 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) [2023-08-25 17:51:08,400 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 410.0) internal successors, (6150), 15 states have internal predecessors, (6150), 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) [2023-08-25 17:51:08,401 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 410.0) internal successors, (6150), 15 states have internal predecessors, (6150), 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) [2023-08-25 17:51:08,401 INFO L175 Difference]: Start difference. First operand has 441 places, 1752 transitions, 26762 flow. Second operand 14 states and 2223 transitions. [2023-08-25 17:51:08,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 2320 transitions, 34700 flow [2023-08-25 17:51:11,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 450 places, 2320 transitions, 33773 flow, removed 240 selfloop flow, removed 4 redundant places. [2023-08-25 17:51:11,608 INFO L231 Difference]: Finished difference. Result has 456 places, 1771 transitions, 27626 flow [2023-08-25 17:51:11,609 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=25898, PETRI_DIFFERENCE_MINUEND_PLACES=437, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1752, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=436, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1302, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=27626, PETRI_PLACES=456, PETRI_TRANSITIONS=1771} [2023-08-25 17:51:11,609 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 322 predicate places. [2023-08-25 17:51:11,610 INFO L495 AbstractCegarLoop]: Abstraction has has 456 places, 1771 transitions, 27626 flow [2023-08-25 17:51:11,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 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) [2023-08-25 17:51:11,610 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:51:11,610 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:51:11,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-25 17:51:11,610 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-25 17:51:11,610 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:51:11,610 INFO L85 PathProgramCache]: Analyzing trace with hash -149475660, now seen corresponding path program 14 times [2023-08-25 17:51:11,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:51:11,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762248029] [2023-08-25 17:51:11,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:51:11,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:51:11,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:51:11,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:51:11,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:51:11,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762248029] [2023-08-25 17:51:11,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762248029] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:51:11,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:51:11,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-25 17:51:11,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918647789] [2023-08-25 17:51:11,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:51:11,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 17:51:11,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:51:11,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 17:51:11,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-08-25 17:51:11,892 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 410 [2023-08-25 17:51:11,893 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 1771 transitions, 27626 flow. Second operand has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 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) [2023-08-25 17:51:11,893 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:51:11,893 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 410 [2023-08-25 17:51:11,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:51:27,841 INFO L124 PetriNetUnfolderBase]: 19796/40872 cut-off events. [2023-08-25 17:51:27,841 INFO L125 PetriNetUnfolderBase]: For 288458/288466 co-relation queries the response was YES. [2023-08-25 17:51:28,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 174142 conditions, 40872 events. 19796/40872 cut-off events. For 288458/288466 co-relation queries the response was YES. Maximal size of possible extension queue 407. Compared 344308 event pairs, 5214 based on Foata normal form. 26/36205 useless extension candidates. Maximal degree in co-relation 173996. Up to 19891 conditions per place. [2023-08-25 17:51:28,902 INFO L140 encePairwiseOnDemand]: 369/410 looper letters, 1996 selfloop transitions, 236 changer transitions 4/2241 dead transitions. [2023-08-25 17:51:28,903 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 468 places, 2241 transitions, 34768 flow [2023-08-25 17:51:28,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-25 17:51:28,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-25 17:51:28,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2036 transitions. [2023-08-25 17:51:28,905 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3819887429643527 [2023-08-25 17:51:28,905 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2036 transitions. [2023-08-25 17:51:28,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2036 transitions. [2023-08-25 17:51:28,905 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:51:28,905 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2036 transitions. [2023-08-25 17:51:28,907 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 156.6153846153846) internal successors, (2036), 13 states have internal predecessors, (2036), 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) [2023-08-25 17:51:28,910 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 410.0) internal successors, (5740), 14 states have internal predecessors, (5740), 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) [2023-08-25 17:51:28,911 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 410.0) internal successors, (5740), 14 states have internal predecessors, (5740), 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) [2023-08-25 17:51:28,911 INFO L175 Difference]: Start difference. First operand has 456 places, 1771 transitions, 27626 flow. Second operand 13 states and 2036 transitions. [2023-08-25 17:51:28,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 468 places, 2241 transitions, 34768 flow [2023-08-25 17:51:32,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 463 places, 2241 transitions, 34302 flow, removed 136 selfloop flow, removed 5 redundant places. [2023-08-25 17:51:32,437 INFO L231 Difference]: Finished difference. Result has 468 places, 1785 transitions, 28138 flow [2023-08-25 17:51:32,438 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=27180, PETRI_DIFFERENCE_MINUEND_PLACES=451, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1771, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=224, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1538, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=28138, PETRI_PLACES=468, PETRI_TRANSITIONS=1785} [2023-08-25 17:51:32,438 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 334 predicate places. [2023-08-25 17:51:32,439 INFO L495 AbstractCegarLoop]: Abstraction has has 468 places, 1785 transitions, 28138 flow [2023-08-25 17:51:32,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 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) [2023-08-25 17:51:32,439 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:51:32,439 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:51:32,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-25 17:51:32,439 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-25 17:51:32,440 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:51:32,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1239595030, now seen corresponding path program 15 times [2023-08-25 17:51:32,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:51:32,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855963085] [2023-08-25 17:51:32,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:51:32,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:51:32,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:51:32,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:51:32,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:51:32,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855963085] [2023-08-25 17:51:32,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855963085] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:51:32,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:51:32,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-25 17:51:32,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799439520] [2023-08-25 17:51:32,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:51:32,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 17:51:32,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:51:32,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 17:51:32,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-08-25 17:51:32,845 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 410 [2023-08-25 17:51:32,845 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 468 places, 1785 transitions, 28138 flow. Second operand has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 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) [2023-08-25 17:51:32,846 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:51:32,846 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 410 [2023-08-25 17:51:32,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand