/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_03-list2_rc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 17:30:10,287 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 17:30:10,370 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 17:30:10,375 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 17:30:10,375 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 17:30:10,408 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 17:30:10,409 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 17:30:10,413 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 17:30:10,414 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 17:30:10,417 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 17:30:10,417 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 17:30:10,418 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 17:30:10,418 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 17:30:10,419 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 17:30:10,419 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 17:30:10,419 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 17:30:10,420 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 17:30:10,420 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 17:30:10,420 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 17:30:10,420 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 17:30:10,420 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 17:30:10,421 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 17:30:10,421 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 17:30:10,422 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 17:30:10,422 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 17:30:10,422 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 17:30:10,422 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 17:30:10,423 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 17:30:10,423 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 17:30:10,423 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 17:30:10,424 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 17:30:10,424 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 17:30:10,424 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 17:30:10,424 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 17:30:10,424 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 17:30:10,425 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 17:30:10,744 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 17:30:10,769 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 17:30:10,771 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 17:30:10,772 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 17:30:10,772 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 17:30:10,773 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/09-regions_03-list2_rc.i [2023-08-25 17:30:12,015 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 17:30:12,267 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 17:30:12,267 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/09-regions_03-list2_rc.i [2023-08-25 17:30:12,284 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3aca169e4/2d504757486245828f44818126013396/FLAGc55048e28 [2023-08-25 17:30:12,311 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3aca169e4/2d504757486245828f44818126013396 [2023-08-25 17:30:12,313 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 17:30:12,314 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 17:30:12,315 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 17:30:12,315 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 17:30:12,318 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 17:30:12,318 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:30:12" (1/1) ... [2023-08-25 17:30:12,319 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7259754e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:30:12, skipping insertion in model container [2023-08-25 17:30:12,319 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:30:12" (1/1) ... [2023-08-25 17:30:12,373 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 17:30:12,924 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 17:30:12,942 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 17:30:12,964 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 17:30:12,965 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 17:30:12,981 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [1044] [2023-08-25 17:30:13,012 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 17:30:13,097 INFO L206 MainTranslator]: Completed translation [2023-08-25 17:30:13,098 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:30:13 WrapperNode [2023-08-25 17:30:13,098 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 17:30:13,099 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 17:30:13,099 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 17:30:13,100 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 17:30:13,105 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:30:13" (1/1) ... [2023-08-25 17:30:13,134 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:30:13" (1/1) ... [2023-08-25 17:30:13,174 INFO L138 Inliner]: procedures = 368, calls = 43, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 174 [2023-08-25 17:30:13,174 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 17:30:13,175 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 17:30:13,175 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 17:30:13,175 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 17:30:13,185 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:30:13" (1/1) ... [2023-08-25 17:30:13,185 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:30:13" (1/1) ... [2023-08-25 17:30:13,189 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:30:13" (1/1) ... [2023-08-25 17:30:13,190 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:30:13" (1/1) ... [2023-08-25 17:30:13,206 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:30:13" (1/1) ... [2023-08-25 17:30:13,208 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:30:13" (1/1) ... [2023-08-25 17:30:13,211 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:30:13" (1/1) ... [2023-08-25 17:30:13,212 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:30:13" (1/1) ... [2023-08-25 17:30:13,216 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 17:30:13,217 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 17:30:13,217 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 17:30:13,217 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 17:30:13,218 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:30:13" (1/1) ... [2023-08-25 17:30:13,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 17:30:13,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 17:30:13,262 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 17:30:13,266 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 17:30:13,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 17:30:13,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-25 17:30:13,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 17:30:13,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 17:30:13,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 17:30:13,292 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 17:30:13,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-25 17:30:13,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 17:30:13,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-25 17:30:13,293 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-25 17:30:13,293 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-25 17:30:13,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 17:30:13,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 17:30:13,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 17:30:13,294 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 17:30:13,413 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 17:30:13,415 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 17:30:13,768 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 17:30:13,776 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 17:30:13,776 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 17:30:13,778 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:30:13 BoogieIcfgContainer [2023-08-25 17:30:13,778 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 17:30:13,780 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 17:30:13,780 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 17:30:13,782 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 17:30:13,782 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 05:30:12" (1/3) ... [2023-08-25 17:30:13,783 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75e69f23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:30:13, skipping insertion in model container [2023-08-25 17:30:13,783 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:30:13" (2/3) ... [2023-08-25 17:30:13,783 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75e69f23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:30:13, skipping insertion in model container [2023-08-25 17:30:13,784 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:30:13" (3/3) ... [2023-08-25 17:30:13,785 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_03-list2_rc.i [2023-08-25 17:30:13,796 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 17:30:13,796 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2023-08-25 17:30:13,796 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 17:30:13,868 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 17:30:13,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 271 places, 267 transitions, 539 flow [2023-08-25 17:30:14,021 INFO L124 PetriNetUnfolderBase]: 0/266 cut-off events. [2023-08-25 17:30:14,021 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:30:14,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 270 conditions, 266 events. 0/266 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 153 event pairs, 0 based on Foata normal form. 0/238 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-25 17:30:14,024 INFO L82 GeneralOperation]: Start removeDead. Operand has 271 places, 267 transitions, 539 flow [2023-08-25 17:30:14,037 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 270 places, 266 transitions, 535 flow [2023-08-25 17:30:14,040 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 17:30:14,050 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 270 places, 266 transitions, 535 flow [2023-08-25 17:30:14,052 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 270 places, 266 transitions, 535 flow [2023-08-25 17:30:14,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 270 places, 266 transitions, 535 flow [2023-08-25 17:30:14,111 INFO L124 PetriNetUnfolderBase]: 0/266 cut-off events. [2023-08-25 17:30:14,111 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:30:14,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 270 conditions, 266 events. 0/266 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 153 event pairs, 0 based on Foata normal form. 0/238 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-25 17:30:14,118 INFO L119 LiptonReduction]: Number of co-enabled transitions 7590 [2023-08-25 17:30:33,371 WARN L234 SmtUtils]: Spent 8.07s on a formula simplification. DAG size of input: 141 DAG size of output: 139 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 17:30:45,846 WARN L234 SmtUtils]: Spent 9.10s on a formula simplification. DAG size of input: 141 DAG size of output: 139 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 17:31:05,139 WARN L234 SmtUtils]: Spent 7.08s on a formula simplification that was a NOOP. DAG size: 175 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 17:31:11,914 WARN L234 SmtUtils]: Spent 6.77s on a formula simplification that was a NOOP. DAG size: 169 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 17:31:18,401 WARN L234 SmtUtils]: Spent 6.48s on a formula simplification that was a NOOP. DAG size: 175 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 17:31:25,295 WARN L234 SmtUtils]: Spent 6.89s on a formula simplification that was a NOOP. DAG size: 169 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 17:31:48,570 WARN L234 SmtUtils]: Spent 23.25s on a formula simplification that was a NOOP. DAG size: 281 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 17:32:00,685 WARN L234 SmtUtils]: Spent 9.05s on a formula simplification that was a NOOP. DAG size: 281 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 17:32:18,034 WARN L234 SmtUtils]: Spent 17.34s on a formula simplification that was a NOOP. DAG size: 253 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 17:33:16,116 WARN L234 SmtUtils]: Spent 58.06s on a formula simplification that was a NOOP. DAG size: 363 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 17:34:10,382 WARN L234 SmtUtils]: Spent 54.26s on a formula simplification that was a NOOP. DAG size: 329 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 17:36:06,114 WARN L234 SmtUtils]: Spent 1.93m on a formula simplification that was a NOOP. DAG size: 363 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 17:36:19,359 WARN L234 SmtUtils]: Spent 13.24s on a formula simplification that was a NOOP. DAG size: 329 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 17:36:19,368 INFO L134 LiptonReduction]: Checked pairs total: 81588 [2023-08-25 17:36:19,368 INFO L136 LiptonReduction]: Total number of compositions: 227 [2023-08-25 17:36:19,380 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 17:36:19,384 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;@54454360, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 17:36:19,385 INFO L358 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2023-08-25 17:36:19,386 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 17:36:19,386 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 17:36:19,386 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:36:19,386 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:36:19,387 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 17:36:19,387 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-25 17:36:19,391 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:36:19,391 INFO L85 PathProgramCache]: Analyzing trace with hash 852, now seen corresponding path program 1 times [2023-08-25 17:36:19,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:36:19,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566905437] [2023-08-25 17:36:19,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:36:19,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:36:19,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:36:19,482 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 17:36:19,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:36:19,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566905437] [2023-08-25 17:36:19,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566905437] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:36:19,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:36:19,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 17:36:19,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14015223] [2023-08-25 17:36:19,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:36:19,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 17:36:19,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:36:19,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 17:36:19,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 17:36:19,522 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 494 [2023-08-25 17:36:19,527 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 102 transitions, 207 flow. Second operand has 2 states, 2 states have (on average 266.5) internal successors, (533), 2 states have internal predecessors, (533), 0 states have call successors, (0), 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 17:36:19,527 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:36:19,527 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 494 [2023-08-25 17:36:19,528 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:36:19,939 INFO L124 PetriNetUnfolderBase]: 140/714 cut-off events. [2023-08-25 17:36:19,939 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:36:19,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1025 conditions, 714 events. 140/714 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 4052 event pairs, 140 based on Foata normal form. 0/664 useless extension candidates. Maximal degree in co-relation 1016. Up to 307 conditions per place. [2023-08-25 17:36:19,950 INFO L140 encePairwiseOnDemand]: 480/494 looper letters, 26 selfloop transitions, 0 changer transitions 0/88 dead transitions. [2023-08-25 17:36:19,951 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 88 transitions, 231 flow [2023-08-25 17:36:19,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 17:36:19,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 17:36:19,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 572 transitions. [2023-08-25 17:36:19,971 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5789473684210527 [2023-08-25 17:36:19,971 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 572 transitions. [2023-08-25 17:36:19,972 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 572 transitions. [2023-08-25 17:36:19,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:36:19,975 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 572 transitions. [2023-08-25 17:36:19,980 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 286.0) internal successors, (572), 2 states have internal predecessors, (572), 0 states have call successors, (0), 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 17:36:19,988 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 494.0) internal successors, (1482), 3 states have internal predecessors, (1482), 0 states have call successors, (0), 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 17:36:19,989 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 494.0) internal successors, (1482), 3 states have internal predecessors, (1482), 0 states have call successors, (0), 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 17:36:19,990 INFO L175 Difference]: Start difference. First operand has 106 places, 102 transitions, 207 flow. Second operand 2 states and 572 transitions. [2023-08-25 17:36:19,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 88 transitions, 231 flow [2023-08-25 17:36:19,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 88 transitions, 230 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 17:36:19,995 INFO L231 Difference]: Finished difference. Result has 92 places, 88 transitions, 178 flow [2023-08-25 17:36:19,997 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=178, PETRI_PLACES=92, PETRI_TRANSITIONS=88} [2023-08-25 17:36:20,000 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, -14 predicate places. [2023-08-25 17:36:20,000 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 88 transitions, 178 flow [2023-08-25 17:36:20,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 266.5) internal successors, (533), 2 states have internal predecessors, (533), 0 states have call successors, (0), 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 17:36:20,001 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:36:20,001 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-25 17:36:20,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 17:36:20,002 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-25 17:36:20,002 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:36:20,002 INFO L85 PathProgramCache]: Analyzing trace with hash 816673469, now seen corresponding path program 1 times [2023-08-25 17:36:20,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:36:20,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375711153] [2023-08-25 17:36:20,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:36:20,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:36:20,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:36:20,317 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 17:36:20,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:36:20,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375711153] [2023-08-25 17:36:20,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375711153] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:36:20,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:36:20,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 17:36:20,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049533833] [2023-08-25 17:36:20,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:36:20,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 17:36:20,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:36:20,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 17:36:20,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 17:36:20,322 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 251 out of 494 [2023-08-25 17:36:20,323 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 88 transitions, 178 flow. Second operand has 3 states, 3 states have (on average 252.66666666666666) internal successors, (758), 3 states have internal predecessors, (758), 0 states have call successors, (0), 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 17:36:20,323 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:36:20,323 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 251 of 494 [2023-08-25 17:36:20,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:36:20,805 INFO L124 PetriNetUnfolderBase]: 154/764 cut-off events. [2023-08-25 17:36:20,805 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:36:20,806 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1104 conditions, 764 events. 154/764 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 4378 event pairs, 154 based on Foata normal form. 0/716 useless extension candidates. Maximal degree in co-relation 1101. Up to 335 conditions per place. [2023-08-25 17:36:20,809 INFO L140 encePairwiseOnDemand]: 491/494 looper letters, 26 selfloop transitions, 1 changer transitions 0/86 dead transitions. [2023-08-25 17:36:20,809 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 86 transitions, 228 flow [2023-08-25 17:36:20,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 17:36:20,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 17:36:20,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 782 transitions. [2023-08-25 17:36:20,812 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5276653171390013 [2023-08-25 17:36:20,812 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 782 transitions. [2023-08-25 17:36:20,812 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 782 transitions. [2023-08-25 17:36:20,813 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:36:20,813 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 782 transitions. [2023-08-25 17:36:20,815 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 260.6666666666667) internal successors, (782), 3 states have internal predecessors, (782), 0 states have call successors, (0), 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 17:36:20,818 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 494.0) internal successors, (1976), 4 states have internal predecessors, (1976), 0 states have call successors, (0), 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 17:36:20,819 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 494.0) internal successors, (1976), 4 states have internal predecessors, (1976), 0 states have call successors, (0), 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 17:36:20,819 INFO L175 Difference]: Start difference. First operand has 92 places, 88 transitions, 178 flow. Second operand 3 states and 782 transitions. [2023-08-25 17:36:20,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 86 transitions, 228 flow [2023-08-25 17:36:20,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 86 transitions, 228 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 17:36:20,821 INFO L231 Difference]: Finished difference. Result has 92 places, 86 transitions, 176 flow [2023-08-25 17:36:20,821 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=176, PETRI_PLACES=92, PETRI_TRANSITIONS=86} [2023-08-25 17:36:20,822 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, -14 predicate places. [2023-08-25 17:36:20,822 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 86 transitions, 176 flow [2023-08-25 17:36:20,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 252.66666666666666) internal successors, (758), 3 states have internal predecessors, (758), 0 states have call successors, (0), 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 17:36:20,823 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:36:20,823 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:36:20,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 17:36:20,824 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-25 17:36:20,824 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:36:20,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1139645560, now seen corresponding path program 1 times [2023-08-25 17:36:20,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:36:20,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816023312] [2023-08-25 17:36:20,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:36:20,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:36:20,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:36:21,536 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 17:36:21,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:36:21,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816023312] [2023-08-25 17:36:21,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816023312] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:36:21,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:36:21,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 17:36:21,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998496007] [2023-08-25 17:36:21,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:36:21,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:36:21,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:36:21,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:36:21,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:36:21,542 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 494 [2023-08-25 17:36:21,543 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 86 transitions, 176 flow. Second operand has 6 states, 6 states have (on average 153.66666666666666) internal successors, (922), 6 states have internal predecessors, (922), 0 states have call successors, (0), 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 17:36:21,543 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:36:21,543 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 494 [2023-08-25 17:36:21,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:36:23,279 INFO L124 PetriNetUnfolderBase]: 1961/4393 cut-off events. [2023-08-25 17:36:23,279 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:36:23,285 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8451 conditions, 4393 events. 1961/4393 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 27998 event pairs, 301 based on Foata normal form. 0/3811 useless extension candidates. Maximal degree in co-relation 8447. Up to 1992 conditions per place. [2023-08-25 17:36:23,304 INFO L140 encePairwiseOnDemand]: 475/494 looper letters, 211 selfloop transitions, 38 changer transitions 0/259 dead transitions. [2023-08-25 17:36:23,304 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 259 transitions, 1020 flow [2023-08-25 17:36:23,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 17:36:23,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 17:36:23,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1163 transitions. [2023-08-25 17:36:23,308 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3923751686909582 [2023-08-25 17:36:23,308 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1163 transitions. [2023-08-25 17:36:23,308 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1163 transitions. [2023-08-25 17:36:23,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:36:23,309 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1163 transitions. [2023-08-25 17:36:23,312 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 193.83333333333334) internal successors, (1163), 6 states have internal predecessors, (1163), 0 states have call successors, (0), 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 17:36:23,317 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 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 17:36:23,319 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 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 17:36:23,319 INFO L175 Difference]: Start difference. First operand has 92 places, 86 transitions, 176 flow. Second operand 6 states and 1163 transitions. [2023-08-25 17:36:23,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 259 transitions, 1020 flow [2023-08-25 17:36:23,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 259 transitions, 1019 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 17:36:23,326 INFO L231 Difference]: Finished difference. Result has 100 places, 122 transitions, 433 flow [2023-08-25 17:36:23,327 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=173, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=433, PETRI_PLACES=100, PETRI_TRANSITIONS=122} [2023-08-25 17:36:23,328 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, -6 predicate places. [2023-08-25 17:36:23,328 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 122 transitions, 433 flow [2023-08-25 17:36:23,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 153.66666666666666) internal successors, (922), 6 states have internal predecessors, (922), 0 states have call successors, (0), 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 17:36:23,329 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:36:23,329 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:36:23,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 17:36:23,329 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-25 17:36:23,331 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:36:23,331 INFO L85 PathProgramCache]: Analyzing trace with hash 2128750545, now seen corresponding path program 1 times [2023-08-25 17:36:23,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:36:23,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820873188] [2023-08-25 17:36:23,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:36:23,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:36:23,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:36:23,833 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 17:36:23,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:36:23,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820873188] [2023-08-25 17:36:23,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820873188] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:36:23,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:36:23,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 17:36:23,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713623942] [2023-08-25 17:36:23,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:36:23,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:36:23,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:36:23,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:36:23,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:36:23,837 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 494 [2023-08-25 17:36:23,838 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 122 transitions, 433 flow. Second operand has 6 states, 6 states have (on average 156.5) internal successors, (939), 6 states have internal predecessors, (939), 0 states have call successors, (0), 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 17:36:23,838 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:36:23,838 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 494 [2023-08-25 17:36:23,838 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:36:26,095 INFO L124 PetriNetUnfolderBase]: 1890/4147 cut-off events. [2023-08-25 17:36:26,096 INFO L125 PetriNetUnfolderBase]: For 1092/1095 co-relation queries the response was YES. [2023-08-25 17:36:26,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9360 conditions, 4147 events. 1890/4147 cut-off events. For 1092/1095 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 25140 event pairs, 1313 based on Foata normal form. 0/3628 useless extension candidates. Maximal degree in co-relation 9352. Up to 3554 conditions per place. [2023-08-25 17:36:26,118 INFO L140 encePairwiseOnDemand]: 488/494 looper letters, 221 selfloop transitions, 5 changer transitions 0/237 dead transitions. [2023-08-25 17:36:26,118 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 237 transitions, 1155 flow [2023-08-25 17:36:26,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 17:36:26,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 17:36:26,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1114 transitions. [2023-08-25 17:36:26,123 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3758434547908232 [2023-08-25 17:36:26,123 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1114 transitions. [2023-08-25 17:36:26,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1114 transitions. [2023-08-25 17:36:26,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:36:26,124 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1114 transitions. [2023-08-25 17:36:26,126 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 185.66666666666666) internal successors, (1114), 6 states have internal predecessors, (1114), 0 states have call successors, (0), 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 17:36:26,131 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 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 17:36:26,132 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 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 17:36:26,132 INFO L175 Difference]: Start difference. First operand has 100 places, 122 transitions, 433 flow. Second operand 6 states and 1114 transitions. [2023-08-25 17:36:26,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 237 transitions, 1155 flow [2023-08-25 17:36:26,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 237 transitions, 1155 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 17:36:26,143 INFO L231 Difference]: Finished difference. Result has 104 places, 121 transitions, 441 flow [2023-08-25 17:36:26,144 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=431, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=441, PETRI_PLACES=104, PETRI_TRANSITIONS=121} [2023-08-25 17:36:26,145 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, -2 predicate places. [2023-08-25 17:36:26,146 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 121 transitions, 441 flow [2023-08-25 17:36:26,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 156.5) internal successors, (939), 6 states have internal predecessors, (939), 0 states have call successors, (0), 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 17:36:26,146 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:36:26,146 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:36:26,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 17:36:26,147 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-25 17:36:26,148 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:36:26,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1720171372, now seen corresponding path program 1 times [2023-08-25 17:36:26,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:36:26,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664700734] [2023-08-25 17:36:26,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:36:26,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:36:26,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:36:26,671 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 17:36:26,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:36:26,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664700734] [2023-08-25 17:36:26,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664700734] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:36:26,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:36:26,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 17:36:26,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665701943] [2023-08-25 17:36:26,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:36:26,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:36:26,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:36:26,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:36:26,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:36:26,683 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 494 [2023-08-25 17:36:26,684 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 121 transitions, 441 flow. Second operand has 6 states, 6 states have (on average 151.5) internal successors, (909), 6 states have internal predecessors, (909), 0 states have call successors, (0), 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 17:36:26,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:36:26,684 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 494 [2023-08-25 17:36:26,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:36:28,541 INFO L124 PetriNetUnfolderBase]: 2223/5102 cut-off events. [2023-08-25 17:36:28,541 INFO L125 PetriNetUnfolderBase]: For 1379/1382 co-relation queries the response was YES. [2023-08-25 17:36:28,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11243 conditions, 5102 events. 2223/5102 cut-off events. For 1379/1382 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 34629 event pairs, 461 based on Foata normal form. 0/4549 useless extension candidates. Maximal degree in co-relation 11234. Up to 2505 conditions per place. [2023-08-25 17:36:28,567 INFO L140 encePairwiseOnDemand]: 473/494 looper letters, 247 selfloop transitions, 71 changer transitions 0/329 dead transitions. [2023-08-25 17:36:28,567 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 329 transitions, 1749 flow [2023-08-25 17:36:28,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 17:36:28,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 17:36:28,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1149 transitions. [2023-08-25 17:36:28,571 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3876518218623482 [2023-08-25 17:36:28,572 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1149 transitions. [2023-08-25 17:36:28,572 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1149 transitions. [2023-08-25 17:36:28,572 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:36:28,573 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1149 transitions. [2023-08-25 17:36:28,576 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 191.5) internal successors, (1149), 6 states have internal predecessors, (1149), 0 states have call successors, (0), 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 17:36:28,582 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 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 17:36:28,583 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 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 17:36:28,583 INFO L175 Difference]: Start difference. First operand has 104 places, 121 transitions, 441 flow. Second operand 6 states and 1149 transitions. [2023-08-25 17:36:28,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 329 transitions, 1749 flow [2023-08-25 17:36:28,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 329 transitions, 1699 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-25 17:36:28,593 INFO L231 Difference]: Finished difference. Result has 109 places, 190 transitions, 1089 flow [2023-08-25 17:36:28,593 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=431, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1089, PETRI_PLACES=109, PETRI_TRANSITIONS=190} [2023-08-25 17:36:28,595 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 3 predicate places. [2023-08-25 17:36:28,596 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 190 transitions, 1089 flow [2023-08-25 17:36:28,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 151.5) internal successors, (909), 6 states have internal predecessors, (909), 0 states have call successors, (0), 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 17:36:28,596 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:36:28,596 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:36:28,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 17:36:28,597 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-25 17:36:28,597 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:36:28,597 INFO L85 PathProgramCache]: Analyzing trace with hash 485984485, now seen corresponding path program 1 times [2023-08-25 17:36:28,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:36:28,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440923108] [2023-08-25 17:36:28,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:36:28,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:36:28,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:36:29,109 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 17:36:29,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:36:29,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440923108] [2023-08-25 17:36:29,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440923108] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:36:29,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:36:29,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 17:36:29,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28750530] [2023-08-25 17:36:29,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:36:29,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:36:29,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:36:29,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:36:29,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:36:29,111 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 494 [2023-08-25 17:36:29,112 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 190 transitions, 1089 flow. Second operand has 6 states, 6 states have (on average 155.5) internal successors, (933), 6 states have internal predecessors, (933), 0 states have call successors, (0), 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 17:36:29,112 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:36:29,112 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 494 [2023-08-25 17:36:29,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:36:31,141 INFO L124 PetriNetUnfolderBase]: 2340/5196 cut-off events. [2023-08-25 17:36:31,142 INFO L125 PetriNetUnfolderBase]: For 3663/3666 co-relation queries the response was YES. [2023-08-25 17:36:31,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14243 conditions, 5196 events. 2340/5196 cut-off events. For 3663/3666 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 33938 event pairs, 1417 based on Foata normal form. 0/4799 useless extension candidates. Maximal degree in co-relation 14230. Up to 4650 conditions per place. [2023-08-25 17:36:31,174 INFO L140 encePairwiseOnDemand]: 472/494 looper letters, 230 selfloop transitions, 79 changer transitions 0/320 dead transitions. [2023-08-25 17:36:31,174 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 320 transitions, 2215 flow [2023-08-25 17:36:31,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 17:36:31,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 17:36:31,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1110 transitions. [2023-08-25 17:36:31,178 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37449392712550605 [2023-08-25 17:36:31,178 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1110 transitions. [2023-08-25 17:36:31,178 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1110 transitions. [2023-08-25 17:36:31,179 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:36:31,179 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1110 transitions. [2023-08-25 17:36:31,181 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 185.0) internal successors, (1110), 6 states have internal predecessors, (1110), 0 states have call successors, (0), 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 17:36:31,185 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 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 17:36:31,186 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 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 17:36:31,186 INFO L175 Difference]: Start difference. First operand has 109 places, 190 transitions, 1089 flow. Second operand 6 states and 1110 transitions. [2023-08-25 17:36:31,186 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 320 transitions, 2215 flow [2023-08-25 17:36:31,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 320 transitions, 2215 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 17:36:31,199 INFO L231 Difference]: Finished difference. Result has 118 places, 264 transitions, 1705 flow [2023-08-25 17:36:31,199 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=1089, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1705, PETRI_PLACES=118, PETRI_TRANSITIONS=264} [2023-08-25 17:36:31,201 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 12 predicate places. [2023-08-25 17:36:31,201 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 264 transitions, 1705 flow [2023-08-25 17:36:31,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 155.5) internal successors, (933), 6 states have internal predecessors, (933), 0 states have call successors, (0), 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 17:36:31,202 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:36:31,202 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:36:31,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 17:36:31,202 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-25 17:36:31,202 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:36:31,202 INFO L85 PathProgramCache]: Analyzing trace with hash -196459402, now seen corresponding path program 1 times [2023-08-25 17:36:31,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:36:31,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93985570] [2023-08-25 17:36:31,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:36:31,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:36:31,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:36:31,288 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 17:36:31,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:36:31,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93985570] [2023-08-25 17:36:31,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93985570] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:36:31,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:36:31,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 17:36:31,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156036775] [2023-08-25 17:36:31,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:36:31,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 17:36:31,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:36:31,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 17:36:31,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 17:36:31,291 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 251 out of 494 [2023-08-25 17:36:31,292 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 264 transitions, 1705 flow. Second operand has 3 states, 3 states have (on average 254.0) internal successors, (762), 3 states have internal predecessors, (762), 0 states have call successors, (0), 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 17:36:31,292 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:36:31,292 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 251 of 494 [2023-08-25 17:36:31,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:36:31,838 INFO L124 PetriNetUnfolderBase]: 729/2736 cut-off events. [2023-08-25 17:36:31,838 INFO L125 PetriNetUnfolderBase]: For 2230/2297 co-relation queries the response was YES. [2023-08-25 17:36:31,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7165 conditions, 2736 events. 729/2736 cut-off events. For 2230/2297 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 20753 event pairs, 268 based on Foata normal form. 8/2615 useless extension candidates. Maximal degree in co-relation 7147. Up to 1113 conditions per place. [2023-08-25 17:36:31,853 INFO L140 encePairwiseOnDemand]: 491/494 looper letters, 49 selfloop transitions, 1 changer transitions 0/262 dead transitions. [2023-08-25 17:36:31,854 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 262 transitions, 1801 flow [2023-08-25 17:36:31,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 17:36:31,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 17:36:31,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 784 transitions. [2023-08-25 17:36:31,856 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5290148448043185 [2023-08-25 17:36:31,856 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 784 transitions. [2023-08-25 17:36:31,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 784 transitions. [2023-08-25 17:36:31,857 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:36:31,857 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 784 transitions. [2023-08-25 17:36:31,858 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 261.3333333333333) internal successors, (784), 3 states have internal predecessors, (784), 0 states have call successors, (0), 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 17:36:31,861 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 494.0) internal successors, (1976), 4 states have internal predecessors, (1976), 0 states have call successors, (0), 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 17:36:31,861 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 494.0) internal successors, (1976), 4 states have internal predecessors, (1976), 0 states have call successors, (0), 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 17:36:31,861 INFO L175 Difference]: Start difference. First operand has 118 places, 264 transitions, 1705 flow. Second operand 3 states and 784 transitions. [2023-08-25 17:36:31,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 262 transitions, 1801 flow [2023-08-25 17:36:31,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 262 transitions, 1729 flow, removed 36 selfloop flow, removed 0 redundant places. [2023-08-25 17:36:31,881 INFO L231 Difference]: Finished difference. Result has 118 places, 262 transitions, 1631 flow [2023-08-25 17:36:31,882 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=1629, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1631, PETRI_PLACES=118, PETRI_TRANSITIONS=262} [2023-08-25 17:36:31,882 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 12 predicate places. [2023-08-25 17:36:31,882 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 262 transitions, 1631 flow [2023-08-25 17:36:31,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 254.0) internal successors, (762), 3 states have internal predecessors, (762), 0 states have call successors, (0), 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 17:36:31,883 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:36:31,883 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:36:31,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 17:36:31,883 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-25 17:36:31,884 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:36:31,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1183061363, now seen corresponding path program 1 times [2023-08-25 17:36:31,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:36:31,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446352213] [2023-08-25 17:36:31,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:36:31,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:36:31,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:36:32,056 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 17:36:32,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:36:32,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446352213] [2023-08-25 17:36:32,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446352213] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:36:32,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:36:32,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 17:36:32,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576768362] [2023-08-25 17:36:32,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:36:32,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 17:36:32,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:36:32,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 17:36:32,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 17:36:32,059 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 494 [2023-08-25 17:36:32,059 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 262 transitions, 1631 flow. Second operand has 3 states, 3 states have (on average 255.33333333333334) internal successors, (766), 3 states have internal predecessors, (766), 0 states have call successors, (0), 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 17:36:32,059 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:36:32,059 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 494 [2023-08-25 17:36:32,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:36:32,880 INFO L124 PetriNetUnfolderBase]: 433/1602 cut-off events. [2023-08-25 17:36:32,880 INFO L125 PetriNetUnfolderBase]: For 1290/1311 co-relation queries the response was YES. [2023-08-25 17:36:32,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4242 conditions, 1602 events. 433/1602 cut-off events. For 1290/1311 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 10821 event pairs, 115 based on Foata normal form. 14/1552 useless extension candidates. Maximal degree in co-relation 4223. Up to 420 conditions per place. [2023-08-25 17:36:32,886 INFO L140 encePairwiseOnDemand]: 488/494 looper letters, 79 selfloop transitions, 6 changer transitions 0/237 dead transitions. [2023-08-25 17:36:32,886 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 237 transitions, 1517 flow [2023-08-25 17:36:32,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 17:36:32,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 17:36:32,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 812 transitions. [2023-08-25 17:36:32,889 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5479082321187584 [2023-08-25 17:36:32,889 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 812 transitions. [2023-08-25 17:36:32,889 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 812 transitions. [2023-08-25 17:36:32,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:36:32,889 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 812 transitions. [2023-08-25 17:36:32,891 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 270.6666666666667) internal successors, (812), 3 states have internal predecessors, (812), 0 states have call successors, (0), 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 17:36:32,893 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 494.0) internal successors, (1976), 4 states have internal predecessors, (1976), 0 states have call successors, (0), 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 17:36:32,894 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 494.0) internal successors, (1976), 4 states have internal predecessors, (1976), 0 states have call successors, (0), 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 17:36:32,894 INFO L175 Difference]: Start difference. First operand has 118 places, 262 transitions, 1631 flow. Second operand 3 states and 812 transitions. [2023-08-25 17:36:32,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 237 transitions, 1517 flow [2023-08-25 17:36:32,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 237 transitions, 1458 flow, removed 29 selfloop flow, removed 1 redundant places. [2023-08-25 17:36:32,904 INFO L231 Difference]: Finished difference. Result has 120 places, 206 transitions, 1170 flow [2023-08-25 17:36:32,905 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=1136, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1170, PETRI_PLACES=120, PETRI_TRANSITIONS=206} [2023-08-25 17:36:32,906 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 14 predicate places. [2023-08-25 17:36:32,908 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 206 transitions, 1170 flow [2023-08-25 17:36:32,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 255.33333333333334) internal successors, (766), 3 states have internal predecessors, (766), 0 states have call successors, (0), 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 17:36:32,908 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:36:32,908 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:36:32,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 17:36:32,910 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-25 17:36:32,910 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:36:32,910 INFO L85 PathProgramCache]: Analyzing trace with hash 393010943, now seen corresponding path program 1 times [2023-08-25 17:36:32,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:36:32,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076759981] [2023-08-25 17:36:32,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:36:32,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:36:32,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:36:33,426 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 17:36:33,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:36:33,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076759981] [2023-08-25 17:36:33,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076759981] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:36:33,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:36:33,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 17:36:33,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766630186] [2023-08-25 17:36:33,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:36:33,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:36:33,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:36:33,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:36:33,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:36:33,429 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 494 [2023-08-25 17:36:33,430 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 206 transitions, 1170 flow. Second operand has 6 states, 6 states have (on average 155.66666666666666) internal successors, (934), 6 states have internal predecessors, (934), 0 states have call successors, (0), 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 17:36:33,430 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:36:33,430 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 494 [2023-08-25 17:36:33,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:36:35,986 INFO L124 PetriNetUnfolderBase]: 1640/3660 cut-off events. [2023-08-25 17:36:35,986 INFO L125 PetriNetUnfolderBase]: For 3260/3260 co-relation queries the response was YES. [2023-08-25 17:36:35,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11256 conditions, 3660 events. 1640/3660 cut-off events. For 3260/3260 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 22967 event pairs, 352 based on Foata normal form. 69/3543 useless extension candidates. Maximal degree in co-relation 11236. Up to 1619 conditions per place. [2023-08-25 17:36:36,000 INFO L140 encePairwiseOnDemand]: 475/494 looper letters, 382 selfloop transitions, 121 changer transitions 9/521 dead transitions. [2023-08-25 17:36:36,001 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 521 transitions, 3813 flow [2023-08-25 17:36:36,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 17:36:36,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 17:36:36,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1220 transitions. [2023-08-25 17:36:36,004 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4116059379217274 [2023-08-25 17:36:36,004 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1220 transitions. [2023-08-25 17:36:36,004 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1220 transitions. [2023-08-25 17:36:36,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:36:36,005 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1220 transitions. [2023-08-25 17:36:36,007 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 203.33333333333334) internal successors, (1220), 6 states have internal predecessors, (1220), 0 states have call successors, (0), 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 17:36:36,010 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 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 17:36:36,011 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 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 17:36:36,011 INFO L175 Difference]: Start difference. First operand has 120 places, 206 transitions, 1170 flow. Second operand 6 states and 1220 transitions. [2023-08-25 17:36:36,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 521 transitions, 3813 flow [2023-08-25 17:36:36,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 521 transitions, 3798 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 17:36:36,032 INFO L231 Difference]: Finished difference. Result has 128 places, 305 transitions, 2513 flow [2023-08-25 17:36:36,033 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=1162, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2513, PETRI_PLACES=128, PETRI_TRANSITIONS=305} [2023-08-25 17:36:36,033 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 22 predicate places. [2023-08-25 17:36:36,033 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 305 transitions, 2513 flow [2023-08-25 17:36:36,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 155.66666666666666) internal successors, (934), 6 states have internal predecessors, (934), 0 states have call successors, (0), 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 17:36:36,034 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:36:36,034 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:36:36,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 17:36:36,034 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-25 17:36:36,035 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:36:36,035 INFO L85 PathProgramCache]: Analyzing trace with hash -765051543, now seen corresponding path program 1 times [2023-08-25 17:36:36,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:36:36,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499029602] [2023-08-25 17:36:36,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:36:36,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:36:36,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:36:36,524 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 17:36:36,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:36:36,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499029602] [2023-08-25 17:36:36,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499029602] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:36:36,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:36:36,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 17:36:36,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622775520] [2023-08-25 17:36:36,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:36:36,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:36:36,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:36:36,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:36:36,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:36:36,527 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 494 [2023-08-25 17:36:36,528 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 305 transitions, 2513 flow. Second operand has 6 states, 6 states have (on average 159.33333333333334) internal successors, (956), 6 states have internal predecessors, (956), 0 states have call successors, (0), 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 17:36:36,528 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:36:36,528 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 494 [2023-08-25 17:36:36,528 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:36:37,829 INFO L124 PetriNetUnfolderBase]: 1527/3437 cut-off events. [2023-08-25 17:36:37,829 INFO L125 PetriNetUnfolderBase]: For 5752/5758 co-relation queries the response was YES. [2023-08-25 17:36:37,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12218 conditions, 3437 events. 1527/3437 cut-off events. For 5752/5758 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 21308 event pairs, 658 based on Foata normal form. 0/3295 useless extension candidates. Maximal degree in co-relation 12194. Up to 2751 conditions per place. [2023-08-25 17:36:37,842 INFO L140 encePairwiseOnDemand]: 488/494 looper letters, 405 selfloop transitions, 17 changer transitions 0/432 dead transitions. [2023-08-25 17:36:37,842 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 432 transitions, 4019 flow [2023-08-25 17:36:37,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 17:36:37,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 17:36:37,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1104 transitions. [2023-08-25 17:36:37,846 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3724696356275304 [2023-08-25 17:36:37,846 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1104 transitions. [2023-08-25 17:36:37,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1104 transitions. [2023-08-25 17:36:37,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:36:37,847 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1104 transitions. [2023-08-25 17:36:37,849 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 184.0) internal successors, (1104), 6 states have internal predecessors, (1104), 0 states have call successors, (0), 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 17:36:37,852 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 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 17:36:37,853 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 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 17:36:37,853 INFO L175 Difference]: Start difference. First operand has 128 places, 305 transitions, 2513 flow. Second operand 6 states and 1104 transitions. [2023-08-25 17:36:37,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 432 transitions, 4019 flow [2023-08-25 17:36:37,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 432 transitions, 4001 flow, removed 9 selfloop flow, removed 0 redundant places. [2023-08-25 17:36:37,877 INFO L231 Difference]: Finished difference. Result has 132 places, 304 transitions, 2527 flow [2023-08-25 17:36:37,877 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=2493, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2527, PETRI_PLACES=132, PETRI_TRANSITIONS=304} [2023-08-25 17:36:37,878 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 26 predicate places. [2023-08-25 17:36:37,878 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 304 transitions, 2527 flow [2023-08-25 17:36:37,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 159.33333333333334) internal successors, (956), 6 states have internal predecessors, (956), 0 states have call successors, (0), 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 17:36:37,879 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:36:37,879 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:36:37,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 17:36:37,879 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-25 17:36:37,879 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:36:37,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1182460824, now seen corresponding path program 1 times [2023-08-25 17:36:37,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:36:37,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519162546] [2023-08-25 17:36:37,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:36:37,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:36:37,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:36:38,378 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 17:36:38,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:36:38,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519162546] [2023-08-25 17:36:38,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519162546] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:36:38,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:36:38,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 17:36:38,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699529440] [2023-08-25 17:36:38,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:36:38,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:36:38,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:36:38,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:36:38,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:36:38,381 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 494 [2023-08-25 17:36:38,382 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 304 transitions, 2527 flow. Second operand has 6 states, 6 states have (on average 158.33333333333334) internal successors, (950), 6 states have internal predecessors, (950), 0 states have call successors, (0), 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 17:36:38,382 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:36:38,382 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 494 [2023-08-25 17:36:38,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:36:39,841 INFO L124 PetriNetUnfolderBase]: 1648/3714 cut-off events. [2023-08-25 17:36:39,841 INFO L125 PetriNetUnfolderBase]: For 6439/6445 co-relation queries the response was YES. [2023-08-25 17:36:39,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13478 conditions, 3714 events. 1648/3714 cut-off events. For 6439/6445 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 23512 event pairs, 771 based on Foata normal form. 0/3580 useless extension candidates. Maximal degree in co-relation 13453. Up to 3319 conditions per place. [2023-08-25 17:36:39,854 INFO L140 encePairwiseOnDemand]: 472/494 looper letters, 326 selfloop transitions, 90 changer transitions 12/437 dead transitions. [2023-08-25 17:36:39,854 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 437 transitions, 4081 flow [2023-08-25 17:36:39,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 17:36:39,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 17:36:39,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1108 transitions. [2023-08-25 17:36:39,858 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3738191632928475 [2023-08-25 17:36:39,858 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1108 transitions. [2023-08-25 17:36:39,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1108 transitions. [2023-08-25 17:36:39,859 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:36:39,859 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1108 transitions. [2023-08-25 17:36:39,861 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 184.66666666666666) internal successors, (1108), 6 states have internal predecessors, (1108), 0 states have call successors, (0), 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 17:36:39,864 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 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 17:36:39,865 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 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 17:36:39,865 INFO L175 Difference]: Start difference. First operand has 132 places, 304 transitions, 2527 flow. Second operand 6 states and 1108 transitions. [2023-08-25 17:36:39,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 437 transitions, 4081 flow [2023-08-25 17:36:39,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 437 transitions, 4047 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-25 17:36:39,889 INFO L231 Difference]: Finished difference. Result has 136 places, 377 transitions, 3269 flow [2023-08-25 17:36:39,890 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=2493, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=262, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3269, PETRI_PLACES=136, PETRI_TRANSITIONS=377} [2023-08-25 17:36:39,890 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 30 predicate places. [2023-08-25 17:36:39,890 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 377 transitions, 3269 flow [2023-08-25 17:36:39,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 158.33333333333334) internal successors, (950), 6 states have internal predecessors, (950), 0 states have call successors, (0), 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 17:36:39,891 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:36:39,891 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:36:39,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-25 17:36:39,891 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-25 17:36:39,891 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:36:39,891 INFO L85 PathProgramCache]: Analyzing trace with hash -989259866, now seen corresponding path program 1 times [2023-08-25 17:36:39,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:36:39,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517783547] [2023-08-25 17:36:39,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:36:39,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:36:40,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:36:41,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:36:41,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:36:41,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517783547] [2023-08-25 17:36:41,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517783547] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:36:41,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:36:41,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-25 17:36:41,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188593581] [2023-08-25 17:36:41,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:36:41,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-25 17:36:41,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:36:41,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-25 17:36:41,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-25 17:36:41,129 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 494 [2023-08-25 17:36:41,135 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 377 transitions, 3269 flow. Second operand has 9 states, 9 states have (on average 137.22222222222223) internal successors, (1235), 9 states have internal predecessors, (1235), 0 states have call successors, (0), 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 17:36:41,136 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:36:41,136 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 494 [2023-08-25 17:36:41,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:36:43,292 INFO L124 PetriNetUnfolderBase]: 1714/3869 cut-off events. [2023-08-25 17:36:43,293 INFO L125 PetriNetUnfolderBase]: For 7967/7969 co-relation queries the response was YES. [2023-08-25 17:36:43,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14814 conditions, 3869 events. 1714/3869 cut-off events. For 7967/7969 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 24838 event pairs, 569 based on Foata normal form. 0/3755 useless extension candidates. Maximal degree in co-relation 14785. Up to 2859 conditions per place. [2023-08-25 17:36:43,308 INFO L140 encePairwiseOnDemand]: 481/494 looper letters, 428 selfloop transitions, 57 changer transitions 14/506 dead transitions. [2023-08-25 17:36:43,308 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 506 transitions, 5025 flow [2023-08-25 17:36:43,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-25 17:36:43,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-25 17:36:43,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1396 transitions. [2023-08-25 17:36:43,313 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3139901034637877 [2023-08-25 17:36:43,313 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1396 transitions. [2023-08-25 17:36:43,313 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1396 transitions. [2023-08-25 17:36:43,314 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:36:43,314 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1396 transitions. [2023-08-25 17:36:43,317 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 155.11111111111111) internal successors, (1396), 9 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 17:36:43,321 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 494.0) internal successors, (4940), 10 states have internal predecessors, (4940), 0 states have call successors, (0), 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 17:36:43,322 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 494.0) internal successors, (4940), 10 states have internal predecessors, (4940), 0 states have call successors, (0), 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 17:36:43,322 INFO L175 Difference]: Start difference. First operand has 136 places, 377 transitions, 3269 flow. Second operand 9 states and 1396 transitions. [2023-08-25 17:36:43,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 506 transitions, 5025 flow [2023-08-25 17:36:43,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 506 transitions, 4865 flow, removed 80 selfloop flow, removed 0 redundant places. [2023-08-25 17:36:43,369 INFO L231 Difference]: Finished difference. Result has 148 places, 385 transitions, 3381 flow [2023-08-25 17:36:43,369 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=3109, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=377, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=324, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3381, PETRI_PLACES=148, PETRI_TRANSITIONS=385} [2023-08-25 17:36:43,370 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 42 predicate places. [2023-08-25 17:36:43,370 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 385 transitions, 3381 flow [2023-08-25 17:36:43,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 137.22222222222223) internal successors, (1235), 9 states have internal predecessors, (1235), 0 states have call successors, (0), 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 17:36:43,370 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:36:43,371 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:36:43,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-25 17:36:43,371 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-25 17:36:43,371 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:36:43,371 INFO L85 PathProgramCache]: Analyzing trace with hash 276646993, now seen corresponding path program 1 times [2023-08-25 17:36:43,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:36:43,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855099273] [2023-08-25 17:36:43,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:36:43,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:36:43,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:36:44,837 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 17:36:44,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:36:44,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855099273] [2023-08-25 17:36:44,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855099273] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:36:44,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:36:44,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 17:36:44,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250639574] [2023-08-25 17:36:44,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:36:44,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-25 17:36:44,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:36:44,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-25 17:36:44,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2023-08-25 17:36:44,840 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 494 [2023-08-25 17:36:44,841 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 385 transitions, 3381 flow. Second operand has 10 states, 10 states have (on average 138.8) internal successors, (1388), 10 states have internal predecessors, (1388), 0 states have call successors, (0), 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 17:36:44,841 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:36:44,841 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 494 [2023-08-25 17:36:44,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:36:46,978 INFO L124 PetriNetUnfolderBase]: 2015/4511 cut-off events. [2023-08-25 17:36:46,979 INFO L125 PetriNetUnfolderBase]: For 12188/12190 co-relation queries the response was YES. [2023-08-25 17:36:46,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18222 conditions, 4511 events. 2015/4511 cut-off events. For 12188/12190 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 29999 event pairs, 477 based on Foata normal form. 9/4421 useless extension candidates. Maximal degree in co-relation 18188. Up to 2128 conditions per place. [2023-08-25 17:36:46,998 INFO L140 encePairwiseOnDemand]: 475/494 looper letters, 535 selfloop transitions, 90 changer transitions 9/641 dead transitions. [2023-08-25 17:36:46,998 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 641 transitions, 6388 flow [2023-08-25 17:36:47,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-25 17:36:47,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-25 17:36:47,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1590 transitions. [2023-08-25 17:36:47,013 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.32186234817813764 [2023-08-25 17:36:47,013 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1590 transitions. [2023-08-25 17:36:47,013 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1590 transitions. [2023-08-25 17:36:47,014 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:36:47,014 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1590 transitions. [2023-08-25 17:36:47,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 159.0) internal successors, (1590), 10 states have internal predecessors, (1590), 0 states have call successors, (0), 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 17:36:47,022 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 494.0) internal successors, (5434), 11 states have internal predecessors, (5434), 0 states have call successors, (0), 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 17:36:47,022 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 494.0) internal successors, (5434), 11 states have internal predecessors, (5434), 0 states have call successors, (0), 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 17:36:47,023 INFO L175 Difference]: Start difference. First operand has 148 places, 385 transitions, 3381 flow. Second operand 10 states and 1590 transitions. [2023-08-25 17:36:47,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 641 transitions, 6388 flow [2023-08-25 17:36:47,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 641 transitions, 6362 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-25 17:36:47,091 INFO L231 Difference]: Finished difference. Result has 162 places, 436 transitions, 4364 flow [2023-08-25 17:36:47,092 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=3373, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=385, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=4364, PETRI_PLACES=162, PETRI_TRANSITIONS=436} [2023-08-25 17:36:47,093 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 56 predicate places. [2023-08-25 17:36:47,093 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 436 transitions, 4364 flow [2023-08-25 17:36:47,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 138.8) internal successors, (1388), 10 states have internal predecessors, (1388), 0 states have call successors, (0), 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 17:36:47,093 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:36:47,093 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:36:47,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-25 17:36:47,094 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-25 17:36:47,094 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:36:47,094 INFO L85 PathProgramCache]: Analyzing trace with hash 539406891, now seen corresponding path program 2 times [2023-08-25 17:36:47,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:36:47,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848102858] [2023-08-25 17:36:47,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:36:47,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:36:47,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:36:48,214 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 17:36:48,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:36:48,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848102858] [2023-08-25 17:36:48,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848102858] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:36:48,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:36:48,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-25 17:36:48,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831295303] [2023-08-25 17:36:48,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:36:48,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-25 17:36:48,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:36:48,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-25 17:36:48,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-08-25 17:36:48,216 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 494 [2023-08-25 17:36:48,218 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 436 transitions, 4364 flow. Second operand has 12 states, 12 states have (on average 130.16666666666666) internal successors, (1562), 12 states have internal predecessors, (1562), 0 states have call successors, (0), 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 17:36:48,218 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:36:48,218 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 494 [2023-08-25 17:36:48,218 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:36:50,958 INFO L124 PetriNetUnfolderBase]: 2122/4764 cut-off events. [2023-08-25 17:36:50,959 INFO L125 PetriNetUnfolderBase]: For 16676/16680 co-relation queries the response was YES. [2023-08-25 17:36:50,972 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20363 conditions, 4764 events. 2122/4764 cut-off events. For 16676/16680 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 31950 event pairs, 451 based on Foata normal form. 13/4679 useless extension candidates. Maximal degree in co-relation 20322. Up to 1608 conditions per place. [2023-08-25 17:36:50,983 INFO L140 encePairwiseOnDemand]: 475/494 looper letters, 550 selfloop transitions, 131 changer transitions 10/698 dead transitions. [2023-08-25 17:36:50,983 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 698 transitions, 7508 flow [2023-08-25 17:36:50,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-08-25 17:36:50,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-08-25 17:36:50,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2685 transitions. [2023-08-25 17:36:50,991 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2860643511613041 [2023-08-25 17:36:50,991 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2685 transitions. [2023-08-25 17:36:50,991 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2685 transitions. [2023-08-25 17:36:50,993 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:36:50,993 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2685 transitions. [2023-08-25 17:36:50,997 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 141.31578947368422) internal successors, (2685), 19 states have internal predecessors, (2685), 0 states have call successors, (0), 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 17:36:51,006 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 494.0) internal successors, (9880), 20 states have internal predecessors, (9880), 0 states have call successors, (0), 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 17:36:51,007 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 494.0) internal successors, (9880), 20 states have internal predecessors, (9880), 0 states have call successors, (0), 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 17:36:51,008 INFO L175 Difference]: Start difference. First operand has 162 places, 436 transitions, 4364 flow. Second operand 19 states and 2685 transitions. [2023-08-25 17:36:51,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 698 transitions, 7508 flow [2023-08-25 17:36:51,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 698 transitions, 7486 flow, removed 11 selfloop flow, removed 0 redundant places. [2023-08-25 17:36:51,097 INFO L231 Difference]: Finished difference. Result has 195 places, 500 transitions, 5455 flow [2023-08-25 17:36:51,098 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=4356, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=436, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=331, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=5455, PETRI_PLACES=195, PETRI_TRANSITIONS=500} [2023-08-25 17:36:51,098 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 89 predicate places. [2023-08-25 17:36:51,098 INFO L495 AbstractCegarLoop]: Abstraction has has 195 places, 500 transitions, 5455 flow [2023-08-25 17:36:51,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 130.16666666666666) internal successors, (1562), 12 states have internal predecessors, (1562), 0 states have call successors, (0), 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 17:36:51,099 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:36:51,099 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:36:51,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-25 17:36:51,099 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-25 17:36:51,100 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:36:51,100 INFO L85 PathProgramCache]: Analyzing trace with hash 386357595, now seen corresponding path program 3 times [2023-08-25 17:36:51,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:36:51,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569275632] [2023-08-25 17:36:51,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:36:51,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:36:51,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:36:52,490 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 17:36:52,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:36:52,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569275632] [2023-08-25 17:36:52,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569275632] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:36:52,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:36:52,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-25 17:36:52,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897822741] [2023-08-25 17:36:52,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:36:52,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-25 17:36:52,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:36:52,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-25 17:36:52,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-08-25 17:36:52,493 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 494 [2023-08-25 17:36:52,494 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 500 transitions, 5455 flow. Second operand has 12 states, 12 states have (on average 130.16666666666666) internal successors, (1562), 12 states have internal predecessors, (1562), 0 states have call successors, (0), 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 17:36:52,494 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:36:52,494 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 494 [2023-08-25 17:36:52,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:36:55,841 INFO L124 PetriNetUnfolderBase]: 2457/5491 cut-off events. [2023-08-25 17:36:55,842 INFO L125 PetriNetUnfolderBase]: For 25836/25840 co-relation queries the response was YES. [2023-08-25 17:36:55,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25505 conditions, 5491 events. 2457/5491 cut-off events. For 25836/25840 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 38307 event pairs, 535 based on Foata normal form. 13/5401 useless extension candidates. Maximal degree in co-relation 25449. Up to 2234 conditions per place. [2023-08-25 17:36:55,866 INFO L140 encePairwiseOnDemand]: 473/494 looper letters, 642 selfloop transitions, 133 changer transitions 9/791 dead transitions. [2023-08-25 17:36:55,866 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 791 transitions, 9182 flow [2023-08-25 17:36:55,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-25 17:36:55,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-25 17:36:55,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2188 transitions. [2023-08-25 17:36:55,879 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.29527665317139 [2023-08-25 17:36:55,879 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2188 transitions. [2023-08-25 17:36:55,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2188 transitions. [2023-08-25 17:36:55,881 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:36:55,881 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2188 transitions. [2023-08-25 17:36:55,885 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 145.86666666666667) internal successors, (2188), 15 states have internal predecessors, (2188), 0 states have call successors, (0), 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 17:36:55,892 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 494.0) internal successors, (7904), 16 states have internal predecessors, (7904), 0 states have call successors, (0), 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 17:36:55,892 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 494.0) internal successors, (7904), 16 states have internal predecessors, (7904), 0 states have call successors, (0), 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 17:36:55,893 INFO L175 Difference]: Start difference. First operand has 195 places, 500 transitions, 5455 flow. Second operand 15 states and 2188 transitions. [2023-08-25 17:36:55,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 791 transitions, 9182 flow [2023-08-25 17:36:56,110 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 791 transitions, 9142 flow, removed 20 selfloop flow, removed 0 redundant places. [2023-08-25 17:36:56,120 INFO L231 Difference]: Finished difference. Result has 214 places, 549 transitions, 6699 flow [2023-08-25 17:36:56,120 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=5417, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=500, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=373, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=6699, PETRI_PLACES=214, PETRI_TRANSITIONS=549} [2023-08-25 17:36:56,120 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 108 predicate places. [2023-08-25 17:36:56,120 INFO L495 AbstractCegarLoop]: Abstraction has has 214 places, 549 transitions, 6699 flow [2023-08-25 17:36:56,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 130.16666666666666) internal successors, (1562), 12 states have internal predecessors, (1562), 0 states have call successors, (0), 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 17:36:56,121 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:36:56,121 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:36:56,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-25 17:36:56,121 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-25 17:36:56,121 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:36:56,121 INFO L85 PathProgramCache]: Analyzing trace with hash -2081073691, now seen corresponding path program 4 times [2023-08-25 17:36:56,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:36:56,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124157181] [2023-08-25 17:36:56,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:36:56,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:36:56,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:36:57,290 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 17:36:57,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:36:57,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124157181] [2023-08-25 17:36:57,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124157181] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:36:57,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:36:57,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 17:36:57,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253369419] [2023-08-25 17:36:57,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:36:57,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-25 17:36:57,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:36:57,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-25 17:36:57,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-08-25 17:36:57,292 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 494 [2023-08-25 17:36:57,293 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 549 transitions, 6699 flow. Second operand has 10 states, 10 states have (on average 138.8) internal successors, (1388), 10 states have internal predecessors, (1388), 0 states have call successors, (0), 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 17:36:57,293 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:36:57,294 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 494 [2023-08-25 17:36:57,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:37:00,567 INFO L124 PetriNetUnfolderBase]: 2812/6282 cut-off events. [2023-08-25 17:37:00,567 INFO L125 PetriNetUnfolderBase]: For 37286/37290 co-relation queries the response was YES. [2023-08-25 17:37:00,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30609 conditions, 6282 events. 2812/6282 cut-off events. For 37286/37290 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 45339 event pairs, 617 based on Foata normal form. 13/6191 useless extension candidates. Maximal degree in co-relation 30548. Up to 2185 conditions per place. [2023-08-25 17:37:00,602 INFO L140 encePairwiseOnDemand]: 475/494 looper letters, 668 selfloop transitions, 172 changer transitions 9/856 dead transitions. [2023-08-25 17:37:00,602 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 856 transitions, 11276 flow [2023-08-25 17:37:00,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-25 17:37:00,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-25 17:37:00,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2163 transitions. [2023-08-25 17:37:00,605 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.31275303643724695 [2023-08-25 17:37:00,605 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2163 transitions. [2023-08-25 17:37:00,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2163 transitions. [2023-08-25 17:37:00,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:37:00,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2163 transitions. [2023-08-25 17:37:00,609 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 154.5) internal successors, (2163), 14 states have internal predecessors, (2163), 0 states have call successors, (0), 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 17:37:00,615 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 494.0) internal successors, (7410), 15 states have internal predecessors, (7410), 0 states have call successors, (0), 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 17:37:00,615 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 494.0) internal successors, (7410), 15 states have internal predecessors, (7410), 0 states have call successors, (0), 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 17:37:00,615 INFO L175 Difference]: Start difference. First operand has 214 places, 549 transitions, 6699 flow. Second operand 14 states and 2163 transitions. [2023-08-25 17:37:00,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 856 transitions, 11276 flow [2023-08-25 17:37:00,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 856 transitions, 11220 flow, removed 10 selfloop flow, removed 5 redundant places. [2023-08-25 17:37:00,786 INFO L231 Difference]: Finished difference. Result has 232 places, 614 transitions, 8491 flow [2023-08-25 17:37:00,786 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=6653, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=549, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=108, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=387, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=8491, PETRI_PLACES=232, PETRI_TRANSITIONS=614} [2023-08-25 17:37:00,787 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 126 predicate places. [2023-08-25 17:37:00,787 INFO L495 AbstractCegarLoop]: Abstraction has has 232 places, 614 transitions, 8491 flow [2023-08-25 17:37:00,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 138.8) internal successors, (1388), 10 states have internal predecessors, (1388), 0 states have call successors, (0), 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 17:37:00,787 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:37:00,787 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:37:00,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-25 17:37:00,787 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-25 17:37:00,788 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:37:00,788 INFO L85 PathProgramCache]: Analyzing trace with hash -591885031, now seen corresponding path program 5 times [2023-08-25 17:37:00,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:37:00,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321883921] [2023-08-25 17:37:00,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:37:00,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:37:00,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:37:02,115 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 17:37:02,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:37:02,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321883921] [2023-08-25 17:37:02,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321883921] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:37:02,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:37:02,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 17:37:02,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849826317] [2023-08-25 17:37:02,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:37:02,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-25 17:37:02,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:37:02,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-25 17:37:02,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-08-25 17:37:02,118 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 494 [2023-08-25 17:37:02,119 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 614 transitions, 8491 flow. Second operand has 10 states, 10 states have (on average 138.8) internal successors, (1388), 10 states have internal predecessors, (1388), 0 states have call successors, (0), 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 17:37:02,119 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:37:02,119 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 494 [2023-08-25 17:37:02,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:37:05,311 INFO L124 PetriNetUnfolderBase]: 3102/6940 cut-off events. [2023-08-25 17:37:05,311 INFO L125 PetriNetUnfolderBase]: For 52151/52155 co-relation queries the response was YES. [2023-08-25 17:37:05,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35341 conditions, 6940 events. 3102/6940 cut-off events. For 52151/52155 co-relation queries the response was YES. Maximal size of possible extension queue 212. Compared 51644 event pairs, 655 based on Foata normal form. 13/6845 useless extension candidates. Maximal degree in co-relation 35270. Up to 2635 conditions per place. [2023-08-25 17:37:05,357 INFO L140 encePairwiseOnDemand]: 475/494 looper letters, 678 selfloop transitions, 197 changer transitions 9/891 dead transitions. [2023-08-25 17:37:05,357 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 891 transitions, 12859 flow [2023-08-25 17:37:05,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-25 17:37:05,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-25 17:37:05,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2021 transitions. [2023-08-25 17:37:05,362 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.31469947056991593 [2023-08-25 17:37:05,362 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2021 transitions. [2023-08-25 17:37:05,363 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2021 transitions. [2023-08-25 17:37:05,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:37:05,363 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2021 transitions. [2023-08-25 17:37:05,368 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 155.46153846153845) internal successors, (2021), 13 states have internal predecessors, (2021), 0 states have call successors, (0), 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 17:37:05,374 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 494.0) internal successors, (6916), 14 states have internal predecessors, (6916), 0 states have call successors, (0), 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 17:37:05,375 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 494.0) internal successors, (6916), 14 states have internal predecessors, (6916), 0 states have call successors, (0), 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 17:37:05,375 INFO L175 Difference]: Start difference. First operand has 232 places, 614 transitions, 8491 flow. Second operand 13 states and 2021 transitions. [2023-08-25 17:37:05,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 891 transitions, 12859 flow [2023-08-25 17:37:05,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 891 transitions, 12775 flow, removed 40 selfloop flow, removed 1 redundant places. [2023-08-25 17:37:05,649 INFO L231 Difference]: Finished difference. Result has 251 places, 659 transitions, 10201 flow [2023-08-25 17:37:05,649 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=8407, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=614, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=153, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=10201, PETRI_PLACES=251, PETRI_TRANSITIONS=659} [2023-08-25 17:37:05,649 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 145 predicate places. [2023-08-25 17:37:05,649 INFO L495 AbstractCegarLoop]: Abstraction has has 251 places, 659 transitions, 10201 flow [2023-08-25 17:37:05,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 138.8) internal successors, (1388), 10 states have internal predecessors, (1388), 0 states have call successors, (0), 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 17:37:05,650 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:37:05,650 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:37:05,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-25 17:37:05,650 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-25 17:37:05,650 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:37:05,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1884002618, now seen corresponding path program 1 times [2023-08-25 17:37:05,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:37:05,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741290237] [2023-08-25 17:37:05,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:37:05,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:37:05,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:37:06,672 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 17:37:06,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:37:06,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741290237] [2023-08-25 17:37:06,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741290237] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:37:06,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:37:06,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-25 17:37:06,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016978961] [2023-08-25 17:37:06,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:37:06,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-25 17:37:06,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:37:06,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-25 17:37:06,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-08-25 17:37:06,675 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 494 [2023-08-25 17:37:06,676 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 659 transitions, 10201 flow. Second operand has 12 states, 12 states have (on average 130.5) internal successors, (1566), 12 states have internal predecessors, (1566), 0 states have call successors, (0), 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 17:37:06,676 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:37:06,676 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 494 [2023-08-25 17:37:06,676 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:37:10,814 INFO L124 PetriNetUnfolderBase]: 3097/6973 cut-off events. [2023-08-25 17:37:10,814 INFO L125 PetriNetUnfolderBase]: For 63642/63646 co-relation queries the response was YES. [2023-08-25 17:37:10,849 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36678 conditions, 6973 events. 3097/6973 cut-off events. For 63642/63646 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 52006 event pairs, 428 based on Foata normal form. 7/6874 useless extension candidates. Maximal degree in co-relation 36599. Up to 2274 conditions per place. [2023-08-25 17:37:10,866 INFO L140 encePairwiseOnDemand]: 474/494 looper letters, 644 selfloop transitions, 245 changer transitions 16/912 dead transitions. [2023-08-25 17:37:10,866 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 912 transitions, 13490 flow [2023-08-25 17:37:10,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-08-25 17:37:10,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-08-25 17:37:10,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 3393 transitions. [2023-08-25 17:37:10,869 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.28618421052631576 [2023-08-25 17:37:10,869 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 3393 transitions. [2023-08-25 17:37:10,870 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 3393 transitions. [2023-08-25 17:37:10,870 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:37:10,870 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 3393 transitions. [2023-08-25 17:37:10,873 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 141.375) internal successors, (3393), 24 states have internal predecessors, (3393), 0 states have call successors, (0), 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 17:37:10,879 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 494.0) internal successors, (12350), 25 states have internal predecessors, (12350), 0 states have call successors, (0), 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 17:37:10,879 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 494.0) internal successors, (12350), 25 states have internal predecessors, (12350), 0 states have call successors, (0), 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 17:37:10,879 INFO L175 Difference]: Start difference. First operand has 251 places, 659 transitions, 10201 flow. Second operand 24 states and 3393 transitions. [2023-08-25 17:37:10,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 912 transitions, 13490 flow [2023-08-25 17:37:11,126 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 272 places, 912 transitions, 13397 flow, removed 41 selfloop flow, removed 2 redundant places. [2023-08-25 17:37:11,137 INFO L231 Difference]: Finished difference. Result has 277 places, 667 transitions, 10958 flow [2023-08-25 17:37:11,138 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=10108, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=659, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=237, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=10958, PETRI_PLACES=277, PETRI_TRANSITIONS=667} [2023-08-25 17:37:11,138 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 171 predicate places. [2023-08-25 17:37:11,138 INFO L495 AbstractCegarLoop]: Abstraction has has 277 places, 667 transitions, 10958 flow [2023-08-25 17:37:11,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 130.5) internal successors, (1566), 12 states have internal predecessors, (1566), 0 states have call successors, (0), 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 17:37:11,138 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:37:11,138 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:37:11,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-25 17:37:11,138 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-25 17:37:11,139 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:37:11,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1577471982, now seen corresponding path program 1 times [2023-08-25 17:37:11,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:37:11,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957533950] [2023-08-25 17:37:11,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:37:11,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:37:11,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:37:12,557 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 17:37:12,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:37:12,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957533950] [2023-08-25 17:37:12,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957533950] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:37:12,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:37:12,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-25 17:37:12,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192418419] [2023-08-25 17:37:12,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:37:12,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-25 17:37:12,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:37:12,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-25 17:37:12,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-08-25 17:37:12,560 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 494 [2023-08-25 17:37:12,561 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 667 transitions, 10958 flow. Second operand has 12 states, 12 states have (on average 136.5) internal successors, (1638), 12 states have internal predecessors, (1638), 0 states have call successors, (0), 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 17:37:12,561 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:37:12,561 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 494 [2023-08-25 17:37:12,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:37:17,419 INFO L124 PetriNetUnfolderBase]: 3826/8581 cut-off events. [2023-08-25 17:37:17,420 INFO L125 PetriNetUnfolderBase]: For 95005/95011 co-relation queries the response was YES. [2023-08-25 17:37:17,463 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47543 conditions, 8581 events. 3826/8581 cut-off events. For 95005/95011 co-relation queries the response was YES. Maximal size of possible extension queue 242. Compared 66073 event pairs, 1106 based on Foata normal form. 7/8407 useless extension candidates. Maximal degree in co-relation 47459. Up to 1665 conditions per place. [2023-08-25 17:37:17,484 INFO L140 encePairwiseOnDemand]: 472/494 looper letters, 932 selfloop transitions, 169 changer transitions 22/1130 dead transitions. [2023-08-25 17:37:17,484 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 1130 transitions, 18520 flow [2023-08-25 17:37:17,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-08-25 17:37:17,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-08-25 17:37:17,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3262 transitions. [2023-08-25 17:37:17,488 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.30014722119985277 [2023-08-25 17:37:17,488 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 3262 transitions. [2023-08-25 17:37:17,488 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 3262 transitions. [2023-08-25 17:37:17,488 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:37:17,488 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 3262 transitions. [2023-08-25 17:37:17,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 148.27272727272728) internal successors, (3262), 22 states have internal predecessors, (3262), 0 states have call successors, (0), 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 17:37:17,496 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 494.0) internal successors, (11362), 23 states have internal predecessors, (11362), 0 states have call successors, (0), 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 17:37:17,496 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 494.0) internal successors, (11362), 23 states have internal predecessors, (11362), 0 states have call successors, (0), 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 17:37:17,496 INFO L175 Difference]: Start difference. First operand has 277 places, 667 transitions, 10958 flow. Second operand 22 states and 3262 transitions. [2023-08-25 17:37:17,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 1130 transitions, 18520 flow [2023-08-25 17:37:17,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 268 places, 1130 transitions, 17896 flow, removed 138 selfloop flow, removed 30 redundant places. [2023-08-25 17:37:17,841 INFO L231 Difference]: Finished difference. Result has 272 places, 737 transitions, 12398 flow [2023-08-25 17:37:17,842 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=10505, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=667, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=508, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=12398, PETRI_PLACES=272, PETRI_TRANSITIONS=737} [2023-08-25 17:37:17,842 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 166 predicate places. [2023-08-25 17:37:17,842 INFO L495 AbstractCegarLoop]: Abstraction has has 272 places, 737 transitions, 12398 flow [2023-08-25 17:37:17,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 136.5) internal successors, (1638), 12 states have internal predecessors, (1638), 0 states have call successors, (0), 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 17:37:17,843 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:37:17,843 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:37:17,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-25 17:37:17,843 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-25 17:37:17,843 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:37:17,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1182180076, now seen corresponding path program 2 times [2023-08-25 17:37:17,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:37:17,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068043505] [2023-08-25 17:37:17,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:37:17,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:37:17,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:37:19,189 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 17:37:19,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:37:19,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068043505] [2023-08-25 17:37:19,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068043505] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:37:19,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:37:19,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-25 17:37:19,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012540830] [2023-08-25 17:37:19,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:37:19,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-25 17:37:19,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:37:19,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-25 17:37:19,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-08-25 17:37:19,191 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 494 [2023-08-25 17:37:19,192 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 737 transitions, 12398 flow. Second operand has 12 states, 12 states have (on average 136.5) internal successors, (1638), 12 states have internal predecessors, (1638), 0 states have call successors, (0), 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 17:37:19,192 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:37:19,192 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 494 [2023-08-25 17:37:19,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:37:23,983 INFO L124 PetriNetUnfolderBase]: 4144/9317 cut-off events. [2023-08-25 17:37:23,983 INFO L125 PetriNetUnfolderBase]: For 102068/102074 co-relation queries the response was YES. [2023-08-25 17:37:24,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51251 conditions, 9317 events. 4144/9317 cut-off events. For 102068/102074 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 72684 event pairs, 930 based on Foata normal form. 12/9304 useless extension candidates. Maximal degree in co-relation 51181. Up to 1845 conditions per place. [2023-08-25 17:37:24,044 INFO L140 encePairwiseOnDemand]: 479/494 looper letters, 950 selfloop transitions, 159 changer transitions 74/1190 dead transitions. [2023-08-25 17:37:24,044 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 1190 transitions, 19244 flow [2023-08-25 17:37:24,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-08-25 17:37:24,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-08-25 17:37:24,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3173 transitions. [2023-08-25 17:37:24,047 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3058608058608059 [2023-08-25 17:37:24,047 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 3173 transitions. [2023-08-25 17:37:24,047 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 3173 transitions. [2023-08-25 17:37:24,048 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:37:24,048 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 3173 transitions. [2023-08-25 17:37:24,050 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 151.0952380952381) internal successors, (3173), 21 states have internal predecessors, (3173), 0 states have call successors, (0), 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 17:37:24,056 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 494.0) internal successors, (10868), 22 states have internal predecessors, (10868), 0 states have call successors, (0), 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 17:37:24,057 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 494.0) internal successors, (10868), 22 states have internal predecessors, (10868), 0 states have call successors, (0), 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 17:37:24,057 INFO L175 Difference]: Start difference. First operand has 272 places, 737 transitions, 12398 flow. Second operand 21 states and 3173 transitions. [2023-08-25 17:37:24,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 1190 transitions, 19244 flow [2023-08-25 17:37:24,411 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 1190 transitions, 18943 flow, removed 1 selfloop flow, removed 4 redundant places. [2023-08-25 17:37:24,426 INFO L231 Difference]: Finished difference. Result has 300 places, 781 transitions, 12908 flow [2023-08-25 17:37:24,427 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=12137, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=737, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=117, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=595, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=12908, PETRI_PLACES=300, PETRI_TRANSITIONS=781} [2023-08-25 17:37:24,428 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 194 predicate places. [2023-08-25 17:37:24,428 INFO L495 AbstractCegarLoop]: Abstraction has has 300 places, 781 transitions, 12908 flow [2023-08-25 17:37:24,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 136.5) internal successors, (1638), 12 states have internal predecessors, (1638), 0 states have call successors, (0), 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 17:37:24,428 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:37:24,428 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:37:24,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-25 17:37:24,428 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-25 17:37:24,429 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:37:24,429 INFO L85 PathProgramCache]: Analyzing trace with hash -486978112, now seen corresponding path program 3 times [2023-08-25 17:37:24,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:37:24,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153751058] [2023-08-25 17:37:24,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:37:24,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:37:24,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:37:25,696 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 17:37:25,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:37:25,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153751058] [2023-08-25 17:37:25,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153751058] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:37:25,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:37:25,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-25 17:37:25,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834344848] [2023-08-25 17:37:25,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:37:25,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-25 17:37:25,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:37:25,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-25 17:37:25,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-08-25 17:37:25,698 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 494 [2023-08-25 17:37:25,699 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 781 transitions, 12908 flow. Second operand has 12 states, 12 states have (on average 136.5) internal successors, (1638), 12 states have internal predecessors, (1638), 0 states have call successors, (0), 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 17:37:25,699 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:37:25,699 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 494 [2023-08-25 17:37:25,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:37:31,858 INFO L124 PetriNetUnfolderBase]: 4900/10967 cut-off events. [2023-08-25 17:37:31,858 INFO L125 PetriNetUnfolderBase]: For 125193/125199 co-relation queries the response was YES. [2023-08-25 17:37:31,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62252 conditions, 10967 events. 4900/10967 cut-off events. For 125193/125199 co-relation queries the response was YES. Maximal size of possible extension queue 272. Compared 88068 event pairs, 1281 based on Foata normal form. 12/10950 useless extension candidates. Maximal degree in co-relation 62171. Up to 2020 conditions per place. [2023-08-25 17:37:31,942 INFO L140 encePairwiseOnDemand]: 472/494 looper letters, 1026 selfloop transitions, 194 changer transitions 23/1250 dead transitions. [2023-08-25 17:37:31,942 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 1250 transitions, 20904 flow [2023-08-25 17:37:31,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-08-25 17:37:31,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-08-25 17:37:31,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 3545 transitions. [2023-08-25 17:37:31,947 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2990047233468286 [2023-08-25 17:37:31,947 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 3545 transitions. [2023-08-25 17:37:31,947 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 3545 transitions. [2023-08-25 17:37:31,948 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:37:31,948 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 3545 transitions. [2023-08-25 17:37:31,952 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 147.70833333333334) internal successors, (3545), 24 states have internal predecessors, (3545), 0 states have call successors, (0), 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 17:37:31,998 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 494.0) internal successors, (12350), 25 states have internal predecessors, (12350), 0 states have call successors, (0), 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 17:37:31,999 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 494.0) internal successors, (12350), 25 states have internal predecessors, (12350), 0 states have call successors, (0), 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 17:37:31,999 INFO L175 Difference]: Start difference. First operand has 300 places, 781 transitions, 12908 flow. Second operand 24 states and 3545 transitions. [2023-08-25 17:37:31,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 1250 transitions, 20904 flow [2023-08-25 17:37:32,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 1250 transitions, 20711 flow, removed 15 selfloop flow, removed 5 redundant places. [2023-08-25 17:37:32,446 INFO L231 Difference]: Finished difference. Result has 323 places, 846 transitions, 14928 flow [2023-08-25 17:37:32,447 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=12720, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=781, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=129, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=591, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=14928, PETRI_PLACES=323, PETRI_TRANSITIONS=846} [2023-08-25 17:37:32,448 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 217 predicate places. [2023-08-25 17:37:32,448 INFO L495 AbstractCegarLoop]: Abstraction has has 323 places, 846 transitions, 14928 flow [2023-08-25 17:37:32,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 136.5) internal successors, (1638), 12 states have internal predecessors, (1638), 0 states have call successors, (0), 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 17:37:32,448 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:37:32,448 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:37:32,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-25 17:37:32,449 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-25 17:37:32,449 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:37:32,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1331434038, now seen corresponding path program 1 times [2023-08-25 17:37:32,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:37:32,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320115564] [2023-08-25 17:37:32,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:37:32,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:37:32,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:37:33,938 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 17:37:33,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:37:33,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320115564] [2023-08-25 17:37:33,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320115564] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:37:33,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:37:33,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 17:37:33,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627493628] [2023-08-25 17:37:33,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:37:33,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 17:37:33,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:37:33,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 17:37:33,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-25 17:37:33,941 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 494 [2023-08-25 17:37:33,942 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 846 transitions, 14928 flow. Second operand has 11 states, 11 states have (on average 134.8181818181818) internal successors, (1483), 11 states have internal predecessors, (1483), 0 states have call successors, (0), 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 17:37:33,942 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:37:33,942 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 494 [2023-08-25 17:37:33,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:37:39,228 INFO L124 PetriNetUnfolderBase]: 4878/10918 cut-off events. [2023-08-25 17:37:39,229 INFO L125 PetriNetUnfolderBase]: For 133081/133087 co-relation queries the response was YES. [2023-08-25 17:37:39,276 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63364 conditions, 10918 events. 4878/10918 cut-off events. For 133081/133087 co-relation queries the response was YES. Maximal size of possible extension queue 267. Compared 87675 event pairs, 1431 based on Foata normal form. 22/10905 useless extension candidates. Maximal degree in co-relation 63279. Up to 2556 conditions per place. [2023-08-25 17:37:39,301 INFO L140 encePairwiseOnDemand]: 470/494 looper letters, 842 selfloop transitions, 216 changer transitions 54/1119 dead transitions. [2023-08-25 17:37:39,302 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 1119 transitions, 19595 flow [2023-08-25 17:37:39,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-25 17:37:39,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-25 17:37:39,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1923 transitions. [2023-08-25 17:37:39,304 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3243927125506073 [2023-08-25 17:37:39,304 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1923 transitions. [2023-08-25 17:37:39,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1923 transitions. [2023-08-25 17:37:39,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:37:39,304 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1923 transitions. [2023-08-25 17:37:39,306 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 160.25) internal successors, (1923), 12 states have internal predecessors, (1923), 0 states have call successors, (0), 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 17:37:39,309 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 494.0) internal successors, (6422), 13 states have internal predecessors, (6422), 0 states have call successors, (0), 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 17:37:39,309 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 494.0) internal successors, (6422), 13 states have internal predecessors, (6422), 0 states have call successors, (0), 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 17:37:39,309 INFO L175 Difference]: Start difference. First operand has 323 places, 846 transitions, 14928 flow. Second operand 12 states and 1923 transitions. [2023-08-25 17:37:39,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 1119 transitions, 19595 flow [2023-08-25 17:37:39,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 1119 transitions, 19344 flow, removed 9 selfloop flow, removed 16 redundant places. [2023-08-25 17:37:39,722 INFO L231 Difference]: Finished difference. Result has 322 places, 854 transitions, 15368 flow [2023-08-25 17:37:39,723 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=14682, PETRI_DIFFERENCE_MINUEND_PLACES=307, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=846, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=208, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=634, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=15368, PETRI_PLACES=322, PETRI_TRANSITIONS=854} [2023-08-25 17:37:39,723 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 216 predicate places. [2023-08-25 17:37:39,723 INFO L495 AbstractCegarLoop]: Abstraction has has 322 places, 854 transitions, 15368 flow [2023-08-25 17:37:39,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 134.8181818181818) internal successors, (1483), 11 states have internal predecessors, (1483), 0 states have call successors, (0), 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 17:37:39,724 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:37:39,724 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:37:39,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-25 17:37:39,724 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-25 17:37:39,724 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:37:39,724 INFO L85 PathProgramCache]: Analyzing trace with hash -239139004, now seen corresponding path program 4 times [2023-08-25 17:37:39,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:37:39,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982267456] [2023-08-25 17:37:39,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:37:39,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:37:39,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:37:41,098 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 17:37:41,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:37:41,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982267456] [2023-08-25 17:37:41,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982267456] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:37:41,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:37:41,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-25 17:37:41,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802910586] [2023-08-25 17:37:41,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:37:41,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-25 17:37:41,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:37:41,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-25 17:37:41,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-08-25 17:37:41,101 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 494 [2023-08-25 17:37:41,102 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 854 transitions, 15368 flow. Second operand has 12 states, 12 states have (on average 136.5) internal successors, (1638), 12 states have internal predecessors, (1638), 0 states have call successors, (0), 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 17:37:41,102 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:37:41,102 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 494 [2023-08-25 17:37:41,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:37:47,926 INFO L124 PetriNetUnfolderBase]: 5642/12610 cut-off events. [2023-08-25 17:37:47,926 INFO L125 PetriNetUnfolderBase]: For 170614/170620 co-relation queries the response was YES. [2023-08-25 17:37:47,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77104 conditions, 12610 events. 5642/12610 cut-off events. For 170614/170620 co-relation queries the response was YES. Maximal size of possible extension queue 294. Compared 104104 event pairs, 1397 based on Foata normal form. 11/12581 useless extension candidates. Maximal degree in co-relation 77014. Up to 2719 conditions per place. [2023-08-25 17:37:48,025 INFO L140 encePairwiseOnDemand]: 473/494 looper letters, 1111 selfloop transitions, 216 changer transitions 24/1358 dead transitions. [2023-08-25 17:37:48,025 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 344 places, 1358 transitions, 24737 flow [2023-08-25 17:37:48,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-08-25 17:37:48,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-08-25 17:37:48,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3421 transitions. [2023-08-25 17:37:48,028 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3010913571554304 [2023-08-25 17:37:48,028 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 3421 transitions. [2023-08-25 17:37:48,029 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 3421 transitions. [2023-08-25 17:37:48,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:37:48,029 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 3421 transitions. [2023-08-25 17:37:48,033 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 148.7391304347826) internal successors, (3421), 23 states have internal predecessors, (3421), 0 states have call successors, (0), 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 17:37:48,040 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 494.0) internal successors, (11856), 24 states have internal predecessors, (11856), 0 states have call successors, (0), 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 17:37:48,041 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 494.0) internal successors, (11856), 24 states have internal predecessors, (11856), 0 states have call successors, (0), 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 17:37:48,042 INFO L175 Difference]: Start difference. First operand has 322 places, 854 transitions, 15368 flow. Second operand 23 states and 3421 transitions. [2023-08-25 17:37:48,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 344 places, 1358 transitions, 24737 flow [2023-08-25 17:37:48,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 338 places, 1358 transitions, 24515 flow, removed 15 selfloop flow, removed 6 redundant places. [2023-08-25 17:37:48,662 INFO L231 Difference]: Finished difference. Result has 346 places, 934 transitions, 17933 flow [2023-08-25 17:37:48,663 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=15182, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=854, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=139, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=646, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=17933, PETRI_PLACES=346, PETRI_TRANSITIONS=934} [2023-08-25 17:37:48,664 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 240 predicate places. [2023-08-25 17:37:48,664 INFO L495 AbstractCegarLoop]: Abstraction has has 346 places, 934 transitions, 17933 flow [2023-08-25 17:37:48,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 136.5) internal successors, (1638), 12 states have internal predecessors, (1638), 0 states have call successors, (0), 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 17:37:48,664 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:37:48,664 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:37:48,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-25 17:37:48,665 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-25 17:37:48,665 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:37:48,665 INFO L85 PathProgramCache]: Analyzing trace with hash 813163844, now seen corresponding path program 5 times [2023-08-25 17:37:48,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:37:48,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597680376] [2023-08-25 17:37:48,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:37:48,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:37:48,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:37:50,006 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 17:37:50,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:37:50,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597680376] [2023-08-25 17:37:50,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597680376] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:37:50,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:37:50,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-25 17:37:50,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723120820] [2023-08-25 17:37:50,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:37:50,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-25 17:37:50,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:37:50,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-25 17:37:50,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2023-08-25 17:37:50,009 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 494 [2023-08-25 17:37:50,010 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 346 places, 934 transitions, 17933 flow. Second operand has 13 states, 13 states have (on average 136.23076923076923) internal successors, (1771), 13 states have internal predecessors, (1771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:37:50,010 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:37:50,010 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 494 [2023-08-25 17:37:50,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:37:56,069 INFO L124 PetriNetUnfolderBase]: 5632/12531 cut-off events. [2023-08-25 17:37:56,069 INFO L125 PetriNetUnfolderBase]: For 179772/179778 co-relation queries the response was YES. [2023-08-25 17:37:56,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77566 conditions, 12531 events. 5632/12531 cut-off events. For 179772/179778 co-relation queries the response was YES. Maximal size of possible extension queue 289. Compared 102822 event pairs, 1825 based on Foata normal form. 11/12506 useless extension candidates. Maximal degree in co-relation 77469. Up to 4325 conditions per place. [2023-08-25 17:37:56,277 INFO L140 encePairwiseOnDemand]: 483/494 looper letters, 926 selfloop transitions, 86 changer transitions 52/1071 dead transitions. [2023-08-25 17:37:56,277 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 355 places, 1071 transitions, 21315 flow [2023-08-25 17:37:56,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 17:37:56,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 17:37:56,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1656 transitions. [2023-08-25 17:37:56,279 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.30474788369525213 [2023-08-25 17:37:56,279 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1656 transitions. [2023-08-25 17:37:56,279 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1656 transitions. [2023-08-25 17:37:56,279 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:37:56,279 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1656 transitions. [2023-08-25 17:37:56,280 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 150.54545454545453) internal successors, (1656), 11 states have internal predecessors, (1656), 0 states have call successors, (0), 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 17:37:56,283 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 494.0) internal successors, (5928), 12 states have internal predecessors, (5928), 0 states have call successors, (0), 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 17:37:56,283 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 494.0) internal successors, (5928), 12 states have internal predecessors, (5928), 0 states have call successors, (0), 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 17:37:56,283 INFO L175 Difference]: Start difference. First operand has 346 places, 934 transitions, 17933 flow. Second operand 11 states and 1656 transitions. [2023-08-25 17:37:56,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 355 places, 1071 transitions, 21315 flow [2023-08-25 17:37:56,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 1071 transitions, 20764 flow, removed 27 selfloop flow, removed 15 redundant places. [2023-08-25 17:37:56,953 INFO L231 Difference]: Finished difference. Result has 340 places, 921 transitions, 17397 flow [2023-08-25 17:37:56,954 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=17368, PETRI_DIFFERENCE_MINUEND_PLACES=330, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=933, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=847, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=17397, PETRI_PLACES=340, PETRI_TRANSITIONS=921} [2023-08-25 17:37:56,955 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 234 predicate places. [2023-08-25 17:37:56,955 INFO L495 AbstractCegarLoop]: Abstraction has has 340 places, 921 transitions, 17397 flow [2023-08-25 17:37:56,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 136.23076923076923) internal successors, (1771), 13 states have internal predecessors, (1771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:37:56,955 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:37:56,955 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:37:56,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-25 17:37:56,955 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-25 17:37:56,956 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:37:56,956 INFO L85 PathProgramCache]: Analyzing trace with hash 745080649, now seen corresponding path program 1 times [2023-08-25 17:37:56,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:37:56,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312488948] [2023-08-25 17:37:56,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:37:56,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:37:57,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 17:37:57,033 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 17:37:57,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 17:37:57,107 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 17:37:57,107 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 17:37:57,108 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (36 of 37 remaining) [2023-08-25 17:37:57,112 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (35 of 37 remaining) [2023-08-25 17:37:57,113 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (34 of 37 remaining) [2023-08-25 17:37:57,113 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (33 of 37 remaining) [2023-08-25 17:37:57,113 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (32 of 37 remaining) [2023-08-25 17:37:57,113 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (31 of 37 remaining) [2023-08-25 17:37:57,113 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (30 of 37 remaining) [2023-08-25 17:37:57,113 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (29 of 37 remaining) [2023-08-25 17:37:57,114 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (28 of 37 remaining) [2023-08-25 17:37:57,114 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (27 of 37 remaining) [2023-08-25 17:37:57,114 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (26 of 37 remaining) [2023-08-25 17:37:57,114 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (25 of 37 remaining) [2023-08-25 17:37:57,114 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (24 of 37 remaining) [2023-08-25 17:37:57,114 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (23 of 37 remaining) [2023-08-25 17:37:57,114 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (22 of 37 remaining) [2023-08-25 17:37:57,114 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (21 of 37 remaining) [2023-08-25 17:37:57,114 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (20 of 37 remaining) [2023-08-25 17:37:57,114 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (19 of 37 remaining) [2023-08-25 17:37:57,114 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (18 of 37 remaining) [2023-08-25 17:37:57,115 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (17 of 37 remaining) [2023-08-25 17:37:57,115 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (16 of 37 remaining) [2023-08-25 17:37:57,115 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 37 remaining) [2023-08-25 17:37:57,115 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (14 of 37 remaining) [2023-08-25 17:37:57,115 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (13 of 37 remaining) [2023-08-25 17:37:57,115 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (12 of 37 remaining) [2023-08-25 17:37:57,115 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (11 of 37 remaining) [2023-08-25 17:37:57,115 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (10 of 37 remaining) [2023-08-25 17:37:57,116 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (9 of 37 remaining) [2023-08-25 17:37:57,116 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (8 of 37 remaining) [2023-08-25 17:37:57,116 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (7 of 37 remaining) [2023-08-25 17:37:57,116 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (6 of 37 remaining) [2023-08-25 17:37:57,116 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 37 remaining) [2023-08-25 17:37:57,116 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (4 of 37 remaining) [2023-08-25 17:37:57,116 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (3 of 37 remaining) [2023-08-25 17:37:57,116 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (2 of 37 remaining) [2023-08-25 17:37:57,116 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (1 of 37 remaining) [2023-08-25 17:37:57,116 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (0 of 37 remaining) [2023-08-25 17:37:57,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-25 17:37:57,117 INFO L445 BasicCegarLoop]: Path program histogram: [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:37:57,123 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 17:37:57,123 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 17:37:57,188 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 05:37:57 BasicIcfg [2023-08-25 17:37:57,189 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 17:37:57,191 INFO L158 Benchmark]: Toolchain (without parser) took 464874.69ms. Allocated memory was 392.2MB in the beginning and 7.1GB in the end (delta: 6.7GB). Free memory was 346.2MB in the beginning and 5.8GB in the end (delta: -5.4GB). Peak memory consumption was 1.2GB. Max. memory is 16.0GB. [2023-08-25 17:37:57,191 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 392.2MB. Free memory was 369.6MB in the beginning and 369.5MB in the end (delta: 94.3kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 17:37:57,191 INFO L158 Benchmark]: CACSL2BoogieTranslator took 783.31ms. Allocated memory is still 392.2MB. Free memory was 346.2MB in the beginning and 307.4MB in the end (delta: 38.8MB). Peak memory consumption was 37.7MB. Max. memory is 16.0GB. [2023-08-25 17:37:57,192 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.21ms. Allocated memory is still 392.2MB. Free memory was 307.4MB in the beginning and 303.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-25 17:37:57,192 INFO L158 Benchmark]: Boogie Preprocessor took 41.43ms. Allocated memory is still 392.2MB. Free memory was 303.2MB in the beginning and 300.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-25 17:37:57,192 INFO L158 Benchmark]: RCFGBuilder took 560.93ms. Allocated memory is still 392.2MB. Free memory was 300.0MB in the beginning and 268.6MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.0GB. [2023-08-25 17:37:57,192 INFO L158 Benchmark]: TraceAbstraction took 463408.98ms. Allocated memory was 392.2MB in the beginning and 7.1GB in the end (delta: 6.7GB). Free memory was 267.5MB in the beginning and 5.8GB in the end (delta: -5.5GB). Peak memory consumption was 1.2GB. Max. memory is 16.0GB. [2023-08-25 17:37:57,194 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 392.2MB. Free memory was 369.6MB in the beginning and 369.5MB in the end (delta: 94.3kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 783.31ms. Allocated memory is still 392.2MB. Free memory was 346.2MB in the beginning and 307.4MB in the end (delta: 38.8MB). Peak memory consumption was 37.7MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 75.21ms. Allocated memory is still 392.2MB. Free memory was 307.4MB in the beginning and 303.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 41.43ms. Allocated memory is still 392.2MB. Free memory was 303.2MB in the beginning and 300.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * RCFGBuilder took 560.93ms. Allocated memory is still 392.2MB. Free memory was 300.0MB in the beginning and 268.6MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.0GB. * TraceAbstraction took 463408.98ms. Allocated memory was 392.2MB in the beginning and 7.1GB in the end (delta: 6.7GB). Free memory was 267.5MB in the beginning and 5.8GB in the end (delta: -5.5GB). Peak memory consumption was 1.2GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] - GenericResultAtLocation [Line: 1044]: Unsoundness Warning unspecified type, defaulting to int C: unsigned short [1044] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 365.3s, 270 PlacesBefore, 106 PlacesAfterwards, 266 TransitionsBefore, 102 TransitionsAfterwards, 7590 CoEnabledTransitionPairs, 10 FixpointIterations, 189 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 227 TotalNumberOfCompositions, 81588 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 9814, independent: 8026, independent conditional: 0, independent unconditional: 8026, dependent: 1788, dependent conditional: 0, dependent unconditional: 1788, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2667, independent: 2529, independent conditional: 0, independent unconditional: 2529, dependent: 138, dependent conditional: 0, dependent unconditional: 138, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 9814, independent: 5497, independent conditional: 0, independent unconditional: 5497, dependent: 1650, dependent conditional: 0, dependent unconditional: 1650, unknown: 2667, unknown conditional: 0, unknown unconditional: 2667] , Statistics on independence cache: Total cache size (in pairs): 553, Positive cache size: 451, Positive conditional cache size: 0, Positive unconditional cache size: 451, Negative cache size: 102, Negative conditional cache size: 0, Negative unconditional cache size: 102, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 1235]: Data race detected Data race detected The following path leads to a data race: [L1223-L1226] 0 struct s { int datum; struct s *next; } *A, *B; [L1231] 0 pthread_mutex_t A_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1232] 0 pthread_mutex_t B_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1243] 0 pthread_t t1; [L1244] 0 struct s *p = malloc(sizeof(struct s)); [L1245] CALL 0 init(p,9) [L1228] 0 p -> datum = x [L1229] 0 p -> next = ((void *)0) [L1245] RET 0 init(p,9) [L1246] 0 A = malloc(sizeof(struct s)) [L1247] 0 init(A,3) [L1247] CALL 0 init(A,3) [L1228] 0 p -> datum = x [L1229] 0 p -> next = ((void *)0) [L1247] RET 0 init(A,3) [L1248] EXPR 0 A->next [L1248] 0 A->next = p [L1249] 0 B = malloc(sizeof(struct s)) [L1250] 0 init(B,5) [L1250] CALL 0 init(B,5) [L1228] 0 p -> datum = x [L1229] 0 p -> next = ((void *)0) [L1250] RET 0 init(B,5) [L1251] EXPR 0 B->next [L1251] 0 B->next = p [L1252] FCALL, FORK 0 pthread_create(&t1, ((void *)0), t_fun, ((void *)0)) VAL [A={-2:0}, A_mutex={1:0}, B={11:0}, B_mutex={2:0}, arg={0:0}, p={-3:0}, pthread_create(&t1, ((void *)0), t_fun, ((void *)0))=-1, t1={13:0}] [L1254] EXPR 0 A->next VAL [A->next={-3:0}, A={-2:0}, A_mutex={1:0}, B={11:0}, B_mutex={2:0}, arg={0:0}, p={-3:0}, t1={13:0}] [L1254] 0 p = A->next VAL [A->next={-3:0}, A={-2:0}, A_mutex={1:0}, B={11:0}, B_mutex={2:0}, arg={0:0}, p={-3:0}, t1={13:0}] [L1255] EXPR 0 p->datum VAL [A={-2:0}, A_mutex={1:0}, B={11:0}, B_mutex={2:0}, arg={0:0}, p->datum=9, p={-3:0}, t1={13:0}] [L1255] 0 printf("%d\n", p->datum) [L1258] EXPR 0 B->next VAL [A={-2:0}, A_mutex={1:0}, B->next={-3:0}, B={11:0}, B_mutex={2:0}, arg={0:0}, p={-3:0}, t1={13:0}] [L1235] EXPR 1 A->next VAL [A->next={-3:0}, A={-2:0}, A_mutex={1:0}, B={11:0}, B_mutex={2:0}, arg={0:0}, arg={0:0}] [L1235] EXPR 1 A->next->datum VAL [A->next->datum=9, A->next={-3:0}, A={-2:0}, A_mutex={1:0}, B={11:0}, B_mutex={2:0}, arg={0:0}, arg={0:0}] [L1235] 1 A->next->datum++ VAL [A->next->datum++=27, A->next->datum++=9, A->next->datum=9, A->next={-3:0}, A={-2:0}, A_mutex={1:0}, B={11:0}, B_mutex={2:0}, arg={0:0}, arg={0:0}] [L1258] 0 p = B->next [L1259] 0 p->datum VAL [A->next->datum++=27, A->next->datum++=9, A->next->datum=9, A->next={-3:0}, A={-2:0}, A_mutex={1:0}, B={11:0}, B_mutex={2:0}, arg={0:0}, arg={0:0}, p->datum=10, p={-3:0}, t1={13:0}] [L1235] 1 A->next->datum++ VAL [A->next->datum++=27, A->next->datum++=9, A->next->datum=9, A->next={-3:0}, A={-2:0}, A_mutex={1:0}, B={11:0}, B_mutex={2:0}, arg={0:0}, arg={0:0}] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: A->next->datum++ [1235] * C: B->next = p [1251] * C: p = A->next [1254] * C: p = A->next [1254] * C: p -> datum = x [1228] * C: p -> next = ((void *)0) [1229] * C: B->next = p [1251] * C: A = malloc(sizeof(struct s)) [1246] * C: p -> next = ((void *)0) [1229] * C: A->next->datum++ [1235] * C: p = B->next [1258] * C: A->next->datum++ [1235] * C: p -> datum = x [1228] * C: init(A,3) [1247] * C: init(B,5) [1250] * C: A->next->datum++ [1235] * C: A->next [1248] * C: B->next [1251] * C: A->next [1235] * C: p -> next = ((void *)0) [1229] * C: printf("%d\n", p->datum) [1259] * C: A->next = p [1248] * C: printf("%d\n", p->datum) [1255] * C: A->next = p [1248] * C: printf("%d\n", p->datum) [1255] * C: A->next->datum [1235] * C: p = A->next [1254] * C: A->next = p [1248] * C: p -> datum = x [1228] * C: A->next->datum [1235] * C: A->next [1254] * C: p -> datum = x [1228] * C: B->next [1258] * C: A->next->datum [1235] * C: p = B->next [1258] * C: p = B->next [1258] * C: printf("%d\n", p->datum) [1255] * C: p -> next = ((void *)0) [1229] * C: p = A->next [1254] * C: B->next = p [1251] * C: A->next->datum [1235] * C: printf("%d\n", p->datum) [1255] * C: A->next = p [1248] * C: B = malloc(sizeof(struct s)) [1249] * C: B->next = p [1251] * C: p = B->next [1258] and C: A->next->datum++ [1235] - UnprovableResult [Line: 1228]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1246]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1247]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1228]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1248]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1248]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1249]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1250]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1228]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1251]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1251]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1254]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1254]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1255]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1258]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1258]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1259]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1252]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1235]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1235]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1235]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1238]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1238]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1238]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1238]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 339 locations, 37 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 463.2s, OverallIterations: 25, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 76.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 365.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3233 SdHoareTripleChecker+Valid, 42.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3233 mSDsluCounter, 789 SdHoareTripleChecker+Invalid, 39.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 321 mSDsCounter, 2379 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16401 IncrementalHoareTripleChecker+Invalid, 18780 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2379 mSolverCounterUnsat, 468 mSDtfsCounter, 16401 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 342 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 261 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 813 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17933occurred in iteration=23, InterpolantAutomatonStates: 270, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 19.7s InterpolantComputationTime, 841 NumberOfCodeBlocks, 841 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 769 ConstructedInterpolants, 0 QuantifiedInterpolants, 12005 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 24 InterpolantComputations, 24 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-08-25 17:37:57,285 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...