/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 PROGRAM_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 [2023-08-26 07:08:22,338 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 07:08:22,392 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 [2023-08-26 07:08:22,402 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 07:08:22,403 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 07:08:22,441 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 07:08:22,441 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 07:08:22,446 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 07:08:22,447 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 07:08:22,447 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 07:08:22,447 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 07:08:22,448 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 07:08:22,448 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 07:08:22,448 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 07:08:22,449 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 07:08:22,449 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 07:08:22,449 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 07:08:22,450 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 07:08:22,450 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 07:08:22,450 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 07:08:22,451 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 07:08:22,454 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 07:08:22,454 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 07:08:22,454 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 07:08:22,457 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 07:08:22,457 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 07:08:22,457 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 07:08:22,458 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 07:08:22,458 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 07:08:22,458 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 07:08:22,459 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 07:08:22,459 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 07:08:22,459 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 07:08:22,460 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 07:08:22,460 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 07:08:22,460 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-26 07:08:22,739 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 07:08:22,758 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 07:08:22,761 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 07:08:22,761 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 07:08:22,762 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 07:08:22,763 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/09-regions_03-list2_rc.i [2023-08-26 07:08:23,968 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 07:08:24,215 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 07:08:24,216 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/09-regions_03-list2_rc.i [2023-08-26 07:08:24,237 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2199e441e/4754c01d61e3443ba04bff5d8fc063c0/FLAGa92a49260 [2023-08-26 07:08:24,250 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2199e441e/4754c01d61e3443ba04bff5d8fc063c0 [2023-08-26 07:08:24,252 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 07:08:24,253 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 07:08:24,254 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 07:08:24,254 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 07:08:24,260 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 07:08:24,261 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 07:08:24" (1/1) ... [2023-08-26 07:08:24,262 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@761e298e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:08:24, skipping insertion in model container [2023-08-26 07:08:24,262 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 07:08:24" (1/1) ... [2023-08-26 07:08:24,317 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 07:08:24,762 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 07:08:24,778 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 07:08:24,808 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-26 07:08:24,814 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-26 07:08:24,826 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [1044] [2023-08-26 07:08:24,862 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 07:08:24,946 INFO L206 MainTranslator]: Completed translation [2023-08-26 07:08:24,947 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:08:24 WrapperNode [2023-08-26 07:08:24,947 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 07:08:24,948 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 07:08:24,948 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 07:08:24,948 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 07:08:24,954 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:08:24" (1/1) ... [2023-08-26 07:08:24,989 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:08:24" (1/1) ... [2023-08-26 07:08:25,037 INFO L138 Inliner]: procedures = 368, calls = 43, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 174 [2023-08-26 07:08:25,038 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 07:08:25,038 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 07:08:25,038 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 07:08:25,038 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 07:08:25,046 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:08:24" (1/1) ... [2023-08-26 07:08:25,046 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:08:24" (1/1) ... [2023-08-26 07:08:25,053 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:08:24" (1/1) ... [2023-08-26 07:08:25,053 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:08:24" (1/1) ... [2023-08-26 07:08:25,081 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:08:24" (1/1) ... [2023-08-26 07:08:25,083 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:08:24" (1/1) ... [2023-08-26 07:08:25,097 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:08:24" (1/1) ... [2023-08-26 07:08:25,099 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:08:24" (1/1) ... [2023-08-26 07:08:25,104 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 07:08:25,105 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 07:08:25,105 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 07:08:25,105 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 07:08:25,106 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:08:24" (1/1) ... [2023-08-26 07:08:25,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 07:08:25,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 07:08:25,145 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) [2023-08-26 07:08:25,150 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 [2023-08-26 07:08:25,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 07:08:25,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-26 07:08:25,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 07:08:25,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 07:08:25,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 07:08:25,173 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-26 07:08:25,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-26 07:08:25,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 07:08:25,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-26 07:08:25,174 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-26 07:08:25,174 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-26 07:08:25,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 07:08:25,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 07:08:25,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 07:08:25,178 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 07:08:25,292 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 07:08:25,293 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 07:08:25,769 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 07:08:25,776 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 07:08:25,776 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-26 07:08:25,778 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 07:08:25 BoogieIcfgContainer [2023-08-26 07:08:25,778 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 07:08:25,780 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 07:08:25,780 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 07:08:25,783 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 07:08:25,783 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 07:08:24" (1/3) ... [2023-08-26 07:08:25,783 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34202df0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 07:08:25, skipping insertion in model container [2023-08-26 07:08:25,783 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:08:24" (2/3) ... [2023-08-26 07:08:25,784 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34202df0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 07:08:25, skipping insertion in model container [2023-08-26 07:08:25,784 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 07:08:25" (3/3) ... [2023-08-26 07:08:25,785 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_03-list2_rc.i [2023-08-26 07:08:25,799 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 07:08:25,799 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2023-08-26 07:08:25,799 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 07:08:25,867 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 07:08:25,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 271 places, 267 transitions, 539 flow [2023-08-26 07:08:26,001 INFO L124 PetriNetUnfolderBase]: 0/266 cut-off events. [2023-08-26 07:08:26,001 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 07:08:26,004 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. [2023-08-26 07:08:26,004 INFO L82 GeneralOperation]: Start removeDead. Operand has 271 places, 267 transitions, 539 flow [2023-08-26 07:08:26,014 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 270 places, 266 transitions, 535 flow [2023-08-26 07:08:26,017 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 07:08:26,026 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 270 places, 266 transitions, 535 flow [2023-08-26 07:08:26,028 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 270 places, 266 transitions, 535 flow [2023-08-26 07:08:26,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 270 places, 266 transitions, 535 flow [2023-08-26 07:08:26,135 INFO L124 PetriNetUnfolderBase]: 0/266 cut-off events. [2023-08-26 07:08:26,136 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 07:08:26,137 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. [2023-08-26 07:08:26,142 INFO L119 LiptonReduction]: Number of co-enabled transitions 7590 [2023-08-26 07:08:46,197 WARN L234 SmtUtils]: Spent 8.29s 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) [2023-08-26 07:08:58,799 WARN L234 SmtUtils]: Spent 9.19s 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) [2023-08-26 07:09:18,056 WARN L234 SmtUtils]: Spent 7.09s 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) [2023-08-26 07:09:24,916 WARN L234 SmtUtils]: Spent 6.86s 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) [2023-08-26 07:09:31,505 WARN L234 SmtUtils]: Spent 6.59s 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) [2023-08-26 07:09:38,466 WARN L234 SmtUtils]: Spent 6.96s 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) [2023-08-26 07:10:01,960 WARN L234 SmtUtils]: Spent 23.48s 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) [2023-08-26 07:10:14,249 WARN L234 SmtUtils]: Spent 9.19s 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) [2023-08-26 07:10:31,412 WARN L234 SmtUtils]: Spent 17.16s 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) [2023-08-26 07:11:25,081 WARN L234 SmtUtils]: Spent 53.64s 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) [2023-08-26 07:12:18,648 WARN L234 SmtUtils]: Spent 53.56s 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) [2023-08-26 07:14:19,483 WARN L234 SmtUtils]: Spent 2.01m 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) [2023-08-26 07:14:34,175 WARN L234 SmtUtils]: Spent 14.69s 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) [2023-08-26 07:14:34,185 INFO L134 LiptonReduction]: Checked pairs total: 81588 [2023-08-26 07:14:34,185 INFO L136 LiptonReduction]: Total number of compositions: 227 [2023-08-26 07:14:34,196 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 07:14:34,200 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;@11df5e93, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 07:14:34,200 INFO L358 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2023-08-26 07:14:34,201 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 07:14:34,201 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-26 07:14:34,201 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 07:14:34,201 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:14:34,202 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-26 07:14:34,202 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)] === [2023-08-26 07:14:34,206 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:14:34,206 INFO L85 PathProgramCache]: Analyzing trace with hash 852, now seen corresponding path program 1 times [2023-08-26 07:14:34,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:14:34,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053013637] [2023-08-26 07:14:34,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:14:34,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:14:34,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:14:34,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:14:34,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:14:34,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053013637] [2023-08-26 07:14:34,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053013637] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:14:34,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:14:34,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-26 07:14:34,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551279956] [2023-08-26 07:14:34,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:14:34,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-26 07:14:34,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:14:34,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-26 07:14:34,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-26 07:14:34,357 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 494 [2023-08-26 07:14:34,362 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) [2023-08-26 07:14:34,362 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:14:34,363 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 494 [2023-08-26 07:14:34,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:14:34,801 INFO L124 PetriNetUnfolderBase]: 140/714 cut-off events. [2023-08-26 07:14:34,802 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 07:14:34,807 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. [2023-08-26 07:14:34,811 INFO L140 encePairwiseOnDemand]: 480/494 looper letters, 26 selfloop transitions, 0 changer transitions 0/88 dead transitions. [2023-08-26 07:14:34,811 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 88 transitions, 231 flow [2023-08-26 07:14:34,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-26 07:14:34,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-26 07:14:34,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 572 transitions. [2023-08-26 07:14:34,831 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5789473684210527 [2023-08-26 07:14:34,831 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 572 transitions. [2023-08-26 07:14:34,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 572 transitions. [2023-08-26 07:14:34,835 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:14:34,836 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 572 transitions. [2023-08-26 07:14:34,841 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) [2023-08-26 07:14:34,847 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) [2023-08-26 07:14:34,848 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) [2023-08-26 07:14:34,849 INFO L175 Difference]: Start difference. First operand has 106 places, 102 transitions, 207 flow. Second operand 2 states and 572 transitions. [2023-08-26 07:14:34,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 88 transitions, 231 flow [2023-08-26 07:14:34,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 88 transitions, 230 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 07:14:34,855 INFO L231 Difference]: Finished difference. Result has 92 places, 88 transitions, 178 flow [2023-08-26 07:14:34,856 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} [2023-08-26 07:14:34,860 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, -14 predicate places. [2023-08-26 07:14:34,860 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 88 transitions, 178 flow [2023-08-26 07:14:34,860 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) [2023-08-26 07:14:34,861 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:14:34,861 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-26 07:14:34,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 07:14:34,861 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)] === [2023-08-26 07:14:34,862 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:14:34,862 INFO L85 PathProgramCache]: Analyzing trace with hash 816673469, now seen corresponding path program 1 times [2023-08-26 07:14:34,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:14:34,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368750696] [2023-08-26 07:14:34,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:14:34,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:14:35,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:14:35,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:14:35,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:14:35,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368750696] [2023-08-26 07:14:35,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368750696] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:14:35,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:14:35,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 07:14:35,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93370943] [2023-08-26 07:14:35,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:14:35,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 07:14:35,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:14:35,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 07:14:35,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 07:14:35,201 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 251 out of 494 [2023-08-26 07:14:35,202 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) [2023-08-26 07:14:35,202 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:14:35,202 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 251 of 494 [2023-08-26 07:14:35,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:14:35,654 INFO L124 PetriNetUnfolderBase]: 154/764 cut-off events. [2023-08-26 07:14:35,654 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 07:14:35,655 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. [2023-08-26 07:14:35,657 INFO L140 encePairwiseOnDemand]: 491/494 looper letters, 26 selfloop transitions, 1 changer transitions 0/86 dead transitions. [2023-08-26 07:14:35,658 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 86 transitions, 228 flow [2023-08-26 07:14:35,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 07:14:35,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 07:14:35,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 782 transitions. [2023-08-26 07:14:35,660 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5276653171390013 [2023-08-26 07:14:35,660 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 782 transitions. [2023-08-26 07:14:35,660 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 782 transitions. [2023-08-26 07:14:35,661 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:14:35,661 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 782 transitions. [2023-08-26 07:14:35,662 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) [2023-08-26 07:14:35,665 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) [2023-08-26 07:14:35,666 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) [2023-08-26 07:14:35,666 INFO L175 Difference]: Start difference. First operand has 92 places, 88 transitions, 178 flow. Second operand 3 states and 782 transitions. [2023-08-26 07:14:35,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 86 transitions, 228 flow [2023-08-26 07:14:35,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 86 transitions, 228 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 07:14:35,668 INFO L231 Difference]: Finished difference. Result has 92 places, 86 transitions, 176 flow [2023-08-26 07:14:35,668 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} [2023-08-26 07:14:35,669 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, -14 predicate places. [2023-08-26 07:14:35,669 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 86 transitions, 176 flow [2023-08-26 07:14:35,670 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) [2023-08-26 07:14:35,670 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:14:35,670 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:14:35,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 07:14:35,671 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)] === [2023-08-26 07:14:35,674 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:14:35,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1139645560, now seen corresponding path program 1 times [2023-08-26 07:14:35,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:14:35,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527264240] [2023-08-26 07:14:35,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:14:35,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:14:35,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:14:36,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:14:36,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:14:36,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527264240] [2023-08-26 07:14:36,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527264240] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:14:36,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:14:36,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 07:14:36,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572627029] [2023-08-26 07:14:36,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:14:36,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 07:14:36,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:14:36,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 07:14:36,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 07:14:36,432 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 494 [2023-08-26 07:14:36,433 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) [2023-08-26 07:14:36,433 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:14:36,433 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 494 [2023-08-26 07:14:36,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:14:38,222 INFO L124 PetriNetUnfolderBase]: 1961/4393 cut-off events. [2023-08-26 07:14:38,222 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 07:14:38,227 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. [2023-08-26 07:14:38,244 INFO L140 encePairwiseOnDemand]: 475/494 looper letters, 211 selfloop transitions, 38 changer transitions 0/259 dead transitions. [2023-08-26 07:14:38,244 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 259 transitions, 1020 flow [2023-08-26 07:14:38,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 07:14:38,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 07:14:38,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1163 transitions. [2023-08-26 07:14:38,247 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3923751686909582 [2023-08-26 07:14:38,247 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1163 transitions. [2023-08-26 07:14:38,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1163 transitions. [2023-08-26 07:14:38,248 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:14:38,248 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1163 transitions. [2023-08-26 07:14:38,250 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) [2023-08-26 07:14:38,255 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) [2023-08-26 07:14:38,256 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) [2023-08-26 07:14:38,256 INFO L175 Difference]: Start difference. First operand has 92 places, 86 transitions, 176 flow. Second operand 6 states and 1163 transitions. [2023-08-26 07:14:38,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 259 transitions, 1020 flow [2023-08-26 07:14:38,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 259 transitions, 1019 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 07:14:38,261 INFO L231 Difference]: Finished difference. Result has 100 places, 122 transitions, 433 flow [2023-08-26 07:14:38,261 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} [2023-08-26 07:14:38,262 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, -6 predicate places. [2023-08-26 07:14:38,262 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 122 transitions, 433 flow [2023-08-26 07:14:38,263 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) [2023-08-26 07:14:38,263 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:14:38,263 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:14:38,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 07:14:38,263 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)] === [2023-08-26 07:14:38,264 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:14:38,264 INFO L85 PathProgramCache]: Analyzing trace with hash 2128750545, now seen corresponding path program 1 times [2023-08-26 07:14:38,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:14:38,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966526345] [2023-08-26 07:14:38,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:14:38,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:14:38,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:14:38,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:14:38,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:14:38,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966526345] [2023-08-26 07:14:38,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966526345] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:14:38,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:14:38,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 07:14:38,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652766387] [2023-08-26 07:14:38,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:14:38,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 07:14:38,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:14:38,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 07:14:38,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 07:14:38,772 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 494 [2023-08-26 07:14:38,773 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) [2023-08-26 07:14:38,773 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:14:38,773 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 494 [2023-08-26 07:14:38,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:14:40,899 INFO L124 PetriNetUnfolderBase]: 1890/4147 cut-off events. [2023-08-26 07:14:40,900 INFO L125 PetriNetUnfolderBase]: For 1092/1095 co-relation queries the response was YES. [2023-08-26 07:14:40,906 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. [2023-08-26 07:14:40,922 INFO L140 encePairwiseOnDemand]: 488/494 looper letters, 221 selfloop transitions, 5 changer transitions 0/237 dead transitions. [2023-08-26 07:14:40,922 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 237 transitions, 1155 flow [2023-08-26 07:14:40,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 07:14:40,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 07:14:40,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1114 transitions. [2023-08-26 07:14:40,926 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3758434547908232 [2023-08-26 07:14:40,926 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1114 transitions. [2023-08-26 07:14:40,926 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1114 transitions. [2023-08-26 07:14:40,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:14:40,927 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1114 transitions. [2023-08-26 07:14:40,929 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) [2023-08-26 07:14:40,933 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) [2023-08-26 07:14:40,935 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) [2023-08-26 07:14:40,935 INFO L175 Difference]: Start difference. First operand has 100 places, 122 transitions, 433 flow. Second operand 6 states and 1114 transitions. [2023-08-26 07:14:40,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 237 transitions, 1155 flow [2023-08-26 07:14:40,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 237 transitions, 1155 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 07:14:40,946 INFO L231 Difference]: Finished difference. Result has 104 places, 121 transitions, 441 flow [2023-08-26 07:14:40,946 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} [2023-08-26 07:14:40,947 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, -2 predicate places. [2023-08-26 07:14:40,947 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 121 transitions, 441 flow [2023-08-26 07:14:40,948 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) [2023-08-26 07:14:40,948 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:14:40,948 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:14:40,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 07:14:40,948 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)] === [2023-08-26 07:14:40,949 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:14:40,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1720171372, now seen corresponding path program 1 times [2023-08-26 07:14:40,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:14:40,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661942144] [2023-08-26 07:14:40,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:14:40,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:14:40,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:14:41,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:14:41,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:14:41,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661942144] [2023-08-26 07:14:41,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661942144] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:14:41,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:14:41,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 07:14:41,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830985268] [2023-08-26 07:14:41,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:14:41,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 07:14:41,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:14:41,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 07:14:41,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 07:14:41,447 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 494 [2023-08-26 07:14:41,448 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) [2023-08-26 07:14:41,448 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:14:41,448 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 494 [2023-08-26 07:14:41,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:14:43,242 INFO L124 PetriNetUnfolderBase]: 2223/5102 cut-off events. [2023-08-26 07:14:43,243 INFO L125 PetriNetUnfolderBase]: For 1379/1382 co-relation queries the response was YES. [2023-08-26 07:14:43,250 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. [2023-08-26 07:14:43,267 INFO L140 encePairwiseOnDemand]: 473/494 looper letters, 247 selfloop transitions, 71 changer transitions 0/329 dead transitions. [2023-08-26 07:14:43,267 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 329 transitions, 1749 flow [2023-08-26 07:14:43,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 07:14:43,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 07:14:43,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1149 transitions. [2023-08-26 07:14:43,271 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3876518218623482 [2023-08-26 07:14:43,271 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1149 transitions. [2023-08-26 07:14:43,271 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1149 transitions. [2023-08-26 07:14:43,271 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:14:43,272 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1149 transitions. [2023-08-26 07:14:43,275 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) [2023-08-26 07:14:43,280 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) [2023-08-26 07:14:43,281 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) [2023-08-26 07:14:43,281 INFO L175 Difference]: Start difference. First operand has 104 places, 121 transitions, 441 flow. Second operand 6 states and 1149 transitions. [2023-08-26 07:14:43,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 329 transitions, 1749 flow [2023-08-26 07:14:43,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 329 transitions, 1699 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-26 07:14:43,290 INFO L231 Difference]: Finished difference. Result has 109 places, 190 transitions, 1089 flow [2023-08-26 07:14:43,291 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} [2023-08-26 07:14:43,292 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 3 predicate places. [2023-08-26 07:14:43,293 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 190 transitions, 1089 flow [2023-08-26 07:14:43,293 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) [2023-08-26 07:14:43,293 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:14:43,293 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] [2023-08-26 07:14:43,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 07:14:43,294 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)] === [2023-08-26 07:14:43,294 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:14:43,294 INFO L85 PathProgramCache]: Analyzing trace with hash 485984485, now seen corresponding path program 1 times [2023-08-26 07:14:43,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:14:43,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118455627] [2023-08-26 07:14:43,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:14:43,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:14:43,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:14:43,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:14:43,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:14:43,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118455627] [2023-08-26 07:14:43,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118455627] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:14:43,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:14:43,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 07:14:43,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987291224] [2023-08-26 07:14:43,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:14:43,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 07:14:43,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:14:43,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 07:14:43,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 07:14:43,776 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 494 [2023-08-26 07:14:43,776 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) [2023-08-26 07:14:43,776 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:14:43,777 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 494 [2023-08-26 07:14:43,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:14:45,646 INFO L124 PetriNetUnfolderBase]: 2340/5196 cut-off events. [2023-08-26 07:14:45,647 INFO L125 PetriNetUnfolderBase]: For 3663/3666 co-relation queries the response was YES. [2023-08-26 07:14:45,658 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. [2023-08-26 07:14:45,681 INFO L140 encePairwiseOnDemand]: 472/494 looper letters, 230 selfloop transitions, 79 changer transitions 0/320 dead transitions. [2023-08-26 07:14:45,682 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 320 transitions, 2215 flow [2023-08-26 07:14:45,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 07:14:45,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 07:14:45,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1110 transitions. [2023-08-26 07:14:45,685 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37449392712550605 [2023-08-26 07:14:45,685 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1110 transitions. [2023-08-26 07:14:45,685 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1110 transitions. [2023-08-26 07:14:45,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:14:45,686 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1110 transitions. [2023-08-26 07:14:45,688 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) [2023-08-26 07:14:45,691 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) [2023-08-26 07:14:45,692 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) [2023-08-26 07:14:45,692 INFO L175 Difference]: Start difference. First operand has 109 places, 190 transitions, 1089 flow. Second operand 6 states and 1110 transitions. [2023-08-26 07:14:45,692 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 320 transitions, 2215 flow [2023-08-26 07:14:45,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 320 transitions, 2215 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 07:14:45,707 INFO L231 Difference]: Finished difference. Result has 118 places, 264 transitions, 1705 flow [2023-08-26 07:14:45,707 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} [2023-08-26 07:14:45,709 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 12 predicate places. [2023-08-26 07:14:45,710 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 264 transitions, 1705 flow [2023-08-26 07:14:45,710 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) [2023-08-26 07:14:45,710 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:14:45,710 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] [2023-08-26 07:14:45,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-26 07:14:45,710 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)] === [2023-08-26 07:14:45,711 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:14:45,711 INFO L85 PathProgramCache]: Analyzing trace with hash -196459402, now seen corresponding path program 1 times [2023-08-26 07:14:45,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:14:45,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354470107] [2023-08-26 07:14:45,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:14:45,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:14:45,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:14:45,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:14:45,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:14:45,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354470107] [2023-08-26 07:14:45,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354470107] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:14:45,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:14:45,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 07:14:45,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522550288] [2023-08-26 07:14:45,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:14:45,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 07:14:45,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:14:45,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 07:14:45,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 07:14:45,795 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 251 out of 494 [2023-08-26 07:14:45,795 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) [2023-08-26 07:14:45,795 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:14:45,795 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 251 of 494 [2023-08-26 07:14:45,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:14:46,404 INFO L124 PetriNetUnfolderBase]: 729/2736 cut-off events. [2023-08-26 07:14:46,405 INFO L125 PetriNetUnfolderBase]: For 2230/2297 co-relation queries the response was YES. [2023-08-26 07:14:46,412 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. [2023-08-26 07:14:46,418 INFO L140 encePairwiseOnDemand]: 491/494 looper letters, 49 selfloop transitions, 1 changer transitions 0/262 dead transitions. [2023-08-26 07:14:46,418 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 262 transitions, 1801 flow [2023-08-26 07:14:46,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 07:14:46,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 07:14:46,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 784 transitions. [2023-08-26 07:14:46,423 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5290148448043185 [2023-08-26 07:14:46,423 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 784 transitions. [2023-08-26 07:14:46,423 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 784 transitions. [2023-08-26 07:14:46,424 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:14:46,424 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 784 transitions. [2023-08-26 07:14:46,425 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) [2023-08-26 07:14:46,427 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) [2023-08-26 07:14:46,428 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) [2023-08-26 07:14:46,428 INFO L175 Difference]: Start difference. First operand has 118 places, 264 transitions, 1705 flow. Second operand 3 states and 784 transitions. [2023-08-26 07:14:46,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 262 transitions, 1801 flow [2023-08-26 07:14:46,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 262 transitions, 1729 flow, removed 36 selfloop flow, removed 0 redundant places. [2023-08-26 07:14:46,445 INFO L231 Difference]: Finished difference. Result has 118 places, 262 transitions, 1631 flow [2023-08-26 07:14:46,445 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} [2023-08-26 07:14:46,446 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 12 predicate places. [2023-08-26 07:14:46,446 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 262 transitions, 1631 flow [2023-08-26 07:14:46,446 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) [2023-08-26 07:14:46,446 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:14:46,446 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] [2023-08-26 07:14:46,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-26 07:14:46,447 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)] === [2023-08-26 07:14:46,447 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:14:46,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1183061363, now seen corresponding path program 1 times [2023-08-26 07:14:46,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:14:46,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009683948] [2023-08-26 07:14:46,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:14:46,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:14:46,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:14:46,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:14:46,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:14:46,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009683948] [2023-08-26 07:14:46,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009683948] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:14:46,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:14:46,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 07:14:46,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658672437] [2023-08-26 07:14:46,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:14:46,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 07:14:46,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:14:46,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 07:14:46,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 07:14:46,589 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 494 [2023-08-26 07:14:46,590 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) [2023-08-26 07:14:46,590 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:14:46,590 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 494 [2023-08-26 07:14:46,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:14:47,373 INFO L124 PetriNetUnfolderBase]: 433/1602 cut-off events. [2023-08-26 07:14:47,374 INFO L125 PetriNetUnfolderBase]: For 1290/1311 co-relation queries the response was YES. [2023-08-26 07:14:47,378 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. [2023-08-26 07:14:47,381 INFO L140 encePairwiseOnDemand]: 488/494 looper letters, 79 selfloop transitions, 6 changer transitions 0/237 dead transitions. [2023-08-26 07:14:47,381 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 237 transitions, 1517 flow [2023-08-26 07:14:47,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 07:14:47,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 07:14:47,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 812 transitions. [2023-08-26 07:14:47,384 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5479082321187584 [2023-08-26 07:14:47,384 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 812 transitions. [2023-08-26 07:14:47,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 812 transitions. [2023-08-26 07:14:47,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:14:47,384 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 812 transitions. [2023-08-26 07:14:47,387 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) [2023-08-26 07:14:47,390 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) [2023-08-26 07:14:47,391 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) [2023-08-26 07:14:47,391 INFO L175 Difference]: Start difference. First operand has 118 places, 262 transitions, 1631 flow. Second operand 3 states and 812 transitions. [2023-08-26 07:14:47,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 237 transitions, 1517 flow [2023-08-26 07:14:47,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 237 transitions, 1458 flow, removed 29 selfloop flow, removed 1 redundant places. [2023-08-26 07:14:47,402 INFO L231 Difference]: Finished difference. Result has 120 places, 206 transitions, 1170 flow [2023-08-26 07:14:47,402 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} [2023-08-26 07:14:47,403 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 14 predicate places. [2023-08-26 07:14:47,403 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 206 transitions, 1170 flow [2023-08-26 07:14:47,403 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) [2023-08-26 07:14:47,403 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:14:47,404 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] [2023-08-26 07:14:47,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-26 07:14:47,404 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)] === [2023-08-26 07:14:47,404 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:14:47,404 INFO L85 PathProgramCache]: Analyzing trace with hash 393010943, now seen corresponding path program 1 times [2023-08-26 07:14:47,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:14:47,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211570432] [2023-08-26 07:14:47,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:14:47,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:14:47,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:14:47,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:14:47,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:14:47,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211570432] [2023-08-26 07:14:47,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211570432] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:14:47,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:14:47,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 07:14:47,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855444278] [2023-08-26 07:14:47,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:14:47,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 07:14:47,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:14:47,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 07:14:47,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 07:14:47,911 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 494 [2023-08-26 07:14:47,912 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) [2023-08-26 07:14:47,912 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:14:47,912 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 494 [2023-08-26 07:14:47,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:14:50,122 INFO L124 PetriNetUnfolderBase]: 1640/3660 cut-off events. [2023-08-26 07:14:50,123 INFO L125 PetriNetUnfolderBase]: For 3260/3260 co-relation queries the response was YES. [2023-08-26 07:14:50,134 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. [2023-08-26 07:14:50,145 INFO L140 encePairwiseOnDemand]: 475/494 looper letters, 382 selfloop transitions, 121 changer transitions 9/521 dead transitions. [2023-08-26 07:14:50,145 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 521 transitions, 3813 flow [2023-08-26 07:14:50,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 07:14:50,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 07:14:50,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1220 transitions. [2023-08-26 07:14:50,149 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4116059379217274 [2023-08-26 07:14:50,149 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1220 transitions. [2023-08-26 07:14:50,149 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1220 transitions. [2023-08-26 07:14:50,150 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:14:50,150 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1220 transitions. [2023-08-26 07:14:50,152 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) [2023-08-26 07:14:50,156 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) [2023-08-26 07:14:50,157 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) [2023-08-26 07:14:50,157 INFO L175 Difference]: Start difference. First operand has 120 places, 206 transitions, 1170 flow. Second operand 6 states and 1220 transitions. [2023-08-26 07:14:50,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 521 transitions, 3813 flow [2023-08-26 07:14:50,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 521 transitions, 3798 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 07:14:50,177 INFO L231 Difference]: Finished difference. Result has 128 places, 305 transitions, 2513 flow [2023-08-26 07:14:50,177 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} [2023-08-26 07:14:50,178 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 22 predicate places. [2023-08-26 07:14:50,178 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 305 transitions, 2513 flow [2023-08-26 07:14:50,179 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) [2023-08-26 07:14:50,179 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:14:50,179 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] [2023-08-26 07:14:50,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-26 07:14:50,179 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)] === [2023-08-26 07:14:50,180 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:14:50,180 INFO L85 PathProgramCache]: Analyzing trace with hash -765051543, now seen corresponding path program 1 times [2023-08-26 07:14:50,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:14:50,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619826847] [2023-08-26 07:14:50,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:14:50,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:14:50,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:14:50,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:14:50,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:14:50,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619826847] [2023-08-26 07:14:50,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619826847] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:14:50,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:14:50,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 07:14:50,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672694484] [2023-08-26 07:14:50,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:14:50,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 07:14:50,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:14:50,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 07:14:50,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 07:14:50,674 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 494 [2023-08-26 07:14:50,675 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) [2023-08-26 07:14:50,675 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:14:50,675 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 494 [2023-08-26 07:14:50,676 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:14:52,389 INFO L124 PetriNetUnfolderBase]: 1527/3437 cut-off events. [2023-08-26 07:14:52,389 INFO L125 PetriNetUnfolderBase]: For 5752/5758 co-relation queries the response was YES. [2023-08-26 07:14:52,399 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. [2023-08-26 07:14:52,410 INFO L140 encePairwiseOnDemand]: 488/494 looper letters, 405 selfloop transitions, 17 changer transitions 0/432 dead transitions. [2023-08-26 07:14:52,410 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 432 transitions, 4019 flow [2023-08-26 07:14:52,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 07:14:52,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 07:14:52,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1104 transitions. [2023-08-26 07:14:52,414 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3724696356275304 [2023-08-26 07:14:52,414 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1104 transitions. [2023-08-26 07:14:52,414 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1104 transitions. [2023-08-26 07:14:52,414 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:14:52,415 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1104 transitions. [2023-08-26 07:14:52,417 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) [2023-08-26 07:14:52,420 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) [2023-08-26 07:14:52,421 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) [2023-08-26 07:14:52,421 INFO L175 Difference]: Start difference. First operand has 128 places, 305 transitions, 2513 flow. Second operand 6 states and 1104 transitions. [2023-08-26 07:14:52,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 432 transitions, 4019 flow [2023-08-26 07:14:52,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 432 transitions, 4001 flow, removed 9 selfloop flow, removed 0 redundant places. [2023-08-26 07:14:52,445 INFO L231 Difference]: Finished difference. Result has 132 places, 304 transitions, 2527 flow [2023-08-26 07:14:52,445 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} [2023-08-26 07:14:52,445 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 26 predicate places. [2023-08-26 07:14:52,446 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 304 transitions, 2527 flow [2023-08-26 07:14:52,446 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) [2023-08-26 07:14:52,446 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:14:52,446 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] [2023-08-26 07:14:52,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-26 07:14:52,446 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)] === [2023-08-26 07:14:52,447 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:14:52,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1182460824, now seen corresponding path program 1 times [2023-08-26 07:14:52,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:14:52,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248899270] [2023-08-26 07:14:52,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:14:52,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:14:52,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:14:52,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:14:52,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:14:52,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248899270] [2023-08-26 07:14:52,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248899270] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:14:52,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:14:52,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 07:14:52,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938574197] [2023-08-26 07:14:52,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:14:52,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 07:14:52,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:14:52,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 07:14:52,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 07:14:52,931 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 494 [2023-08-26 07:14:52,932 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) [2023-08-26 07:14:52,932 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:14:52,932 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 494 [2023-08-26 07:14:52,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:14:54,320 INFO L124 PetriNetUnfolderBase]: 1648/3714 cut-off events. [2023-08-26 07:14:54,320 INFO L125 PetriNetUnfolderBase]: For 6439/6445 co-relation queries the response was YES. [2023-08-26 07:14:54,332 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. [2023-08-26 07:14:54,343 INFO L140 encePairwiseOnDemand]: 472/494 looper letters, 326 selfloop transitions, 90 changer transitions 12/437 dead transitions. [2023-08-26 07:14:54,343 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 437 transitions, 4081 flow [2023-08-26 07:14:54,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 07:14:54,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 07:14:54,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1108 transitions. [2023-08-26 07:14:54,349 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3738191632928475 [2023-08-26 07:14:54,349 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1108 transitions. [2023-08-26 07:14:54,349 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1108 transitions. [2023-08-26 07:14:54,350 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:14:54,350 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1108 transitions. [2023-08-26 07:14:54,352 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) [2023-08-26 07:14:54,356 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) [2023-08-26 07:14:54,368 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) [2023-08-26 07:14:54,369 INFO L175 Difference]: Start difference. First operand has 132 places, 304 transitions, 2527 flow. Second operand 6 states and 1108 transitions. [2023-08-26 07:14:54,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 437 transitions, 4081 flow [2023-08-26 07:14:54,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 437 transitions, 4047 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-26 07:14:54,395 INFO L231 Difference]: Finished difference. Result has 136 places, 377 transitions, 3269 flow [2023-08-26 07:14:54,396 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} [2023-08-26 07:14:54,396 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 30 predicate places. [2023-08-26 07:14:54,396 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 377 transitions, 3269 flow [2023-08-26 07:14:54,397 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) [2023-08-26 07:14:54,397 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:14:54,397 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] [2023-08-26 07:14:54,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-26 07:14:54,398 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)] === [2023-08-26 07:14:54,398 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:14:54,398 INFO L85 PathProgramCache]: Analyzing trace with hash -989259866, now seen corresponding path program 1 times [2023-08-26 07:14:54,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:14:54,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222759489] [2023-08-26 07:14:54,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:14:54,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:14:54,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:14:55,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:14:55,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:14:55,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222759489] [2023-08-26 07:14:55,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222759489] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:14:55,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:14:55,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-26 07:14:55,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208673005] [2023-08-26 07:14:55,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:14:55,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-26 07:14:55,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:14:55,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-26 07:14:55,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-26 07:14:55,555 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 494 [2023-08-26 07:14:55,556 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) [2023-08-26 07:14:55,556 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:14:55,556 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 494 [2023-08-26 07:14:55,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:14:57,789 INFO L124 PetriNetUnfolderBase]: 1714/3869 cut-off events. [2023-08-26 07:14:57,789 INFO L125 PetriNetUnfolderBase]: For 7967/7969 co-relation queries the response was YES. [2023-08-26 07:14:57,802 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. [2023-08-26 07:14:57,815 INFO L140 encePairwiseOnDemand]: 481/494 looper letters, 428 selfloop transitions, 57 changer transitions 14/506 dead transitions. [2023-08-26 07:14:57,816 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 506 transitions, 5025 flow [2023-08-26 07:14:57,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-26 07:14:57,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-26 07:14:57,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1396 transitions. [2023-08-26 07:14:57,821 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3139901034637877 [2023-08-26 07:14:57,821 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1396 transitions. [2023-08-26 07:14:57,821 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1396 transitions. [2023-08-26 07:14:57,822 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:14:57,822 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1396 transitions. [2023-08-26 07:14:57,824 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) [2023-08-26 07:14:57,829 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) [2023-08-26 07:14:57,829 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) [2023-08-26 07:14:57,830 INFO L175 Difference]: Start difference. First operand has 136 places, 377 transitions, 3269 flow. Second operand 9 states and 1396 transitions. [2023-08-26 07:14:57,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 506 transitions, 5025 flow [2023-08-26 07:14:57,879 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 506 transitions, 4865 flow, removed 80 selfloop flow, removed 0 redundant places. [2023-08-26 07:14:57,886 INFO L231 Difference]: Finished difference. Result has 148 places, 385 transitions, 3381 flow [2023-08-26 07:14:57,886 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} [2023-08-26 07:14:57,887 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 42 predicate places. [2023-08-26 07:14:57,887 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 385 transitions, 3381 flow [2023-08-26 07:14:57,887 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) [2023-08-26 07:14:57,887 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:14:57,887 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] [2023-08-26 07:14:57,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-26 07:14:57,888 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)] === [2023-08-26 07:14:57,888 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:14:57,888 INFO L85 PathProgramCache]: Analyzing trace with hash 276646993, now seen corresponding path program 1 times [2023-08-26 07:14:57,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:14:57,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638997440] [2023-08-26 07:14:57,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:14:57,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:14:57,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:14:59,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:14:59,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:14:59,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638997440] [2023-08-26 07:14:59,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638997440] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:14:59,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:14:59,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-26 07:14:59,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884924487] [2023-08-26 07:14:59,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:14:59,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-26 07:14:59,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:14:59,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-26 07:14:59,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2023-08-26 07:14:59,381 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 494 [2023-08-26 07:14:59,382 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) [2023-08-26 07:14:59,382 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:14:59,382 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 494 [2023-08-26 07:14:59,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:15:01,780 INFO L124 PetriNetUnfolderBase]: 2015/4511 cut-off events. [2023-08-26 07:15:01,780 INFO L125 PetriNetUnfolderBase]: For 12188/12190 co-relation queries the response was YES. [2023-08-26 07:15:01,791 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. [2023-08-26 07:15:01,805 INFO L140 encePairwiseOnDemand]: 475/494 looper letters, 535 selfloop transitions, 90 changer transitions 9/641 dead transitions. [2023-08-26 07:15:01,805 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 641 transitions, 6388 flow [2023-08-26 07:15:01,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-26 07:15:01,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-26 07:15:01,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1590 transitions. [2023-08-26 07:15:01,810 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.32186234817813764 [2023-08-26 07:15:01,810 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1590 transitions. [2023-08-26 07:15:01,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1590 transitions. [2023-08-26 07:15:01,811 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:15:01,811 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1590 transitions. [2023-08-26 07:15:01,814 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) [2023-08-26 07:15:01,819 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) [2023-08-26 07:15:01,819 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) [2023-08-26 07:15:01,820 INFO L175 Difference]: Start difference. First operand has 148 places, 385 transitions, 3381 flow. Second operand 10 states and 1590 transitions. [2023-08-26 07:15:01,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 641 transitions, 6388 flow [2023-08-26 07:15:01,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 641 transitions, 6362 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-26 07:15:01,885 INFO L231 Difference]: Finished difference. Result has 162 places, 436 transitions, 4364 flow [2023-08-26 07:15:01,885 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} [2023-08-26 07:15:01,886 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 56 predicate places. [2023-08-26 07:15:01,886 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 436 transitions, 4364 flow [2023-08-26 07:15:01,886 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) [2023-08-26 07:15:01,886 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:15:01,886 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] [2023-08-26 07:15:01,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-26 07:15:01,887 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)] === [2023-08-26 07:15:01,887 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:15:01,887 INFO L85 PathProgramCache]: Analyzing trace with hash 539406891, now seen corresponding path program 2 times [2023-08-26 07:15:01,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:15:01,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423305969] [2023-08-26 07:15:01,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:15:01,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:15:01,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:15:03,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:15:03,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:15:03,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423305969] [2023-08-26 07:15:03,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423305969] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:15:03,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:15:03,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-26 07:15:03,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606577647] [2023-08-26 07:15:03,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:15:03,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-26 07:15:03,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:15:03,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-26 07:15:03,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-08-26 07:15:03,079 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 494 [2023-08-26 07:15:03,080 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) [2023-08-26 07:15:03,080 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:15:03,080 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 494 [2023-08-26 07:15:03,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:15:06,024 INFO L124 PetriNetUnfolderBase]: 2122/4764 cut-off events. [2023-08-26 07:15:06,024 INFO L125 PetriNetUnfolderBase]: For 16676/16680 co-relation queries the response was YES. [2023-08-26 07:15:06,039 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. [2023-08-26 07:15:06,053 INFO L140 encePairwiseOnDemand]: 475/494 looper letters, 550 selfloop transitions, 131 changer transitions 10/698 dead transitions. [2023-08-26 07:15:06,054 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 698 transitions, 7508 flow [2023-08-26 07:15:06,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-08-26 07:15:06,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-08-26 07:15:06,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2685 transitions. [2023-08-26 07:15:06,062 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2860643511613041 [2023-08-26 07:15:06,062 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2685 transitions. [2023-08-26 07:15:06,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2685 transitions. [2023-08-26 07:15:06,064 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:15:06,064 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2685 transitions. [2023-08-26 07:15:06,068 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) [2023-08-26 07:15:06,078 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) [2023-08-26 07:15:06,080 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) [2023-08-26 07:15:06,080 INFO L175 Difference]: Start difference. First operand has 162 places, 436 transitions, 4364 flow. Second operand 19 states and 2685 transitions. [2023-08-26 07:15:06,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 698 transitions, 7508 flow [2023-08-26 07:15:06,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 698 transitions, 7486 flow, removed 11 selfloop flow, removed 0 redundant places. [2023-08-26 07:15:06,169 INFO L231 Difference]: Finished difference. Result has 195 places, 500 transitions, 5455 flow [2023-08-26 07:15:06,169 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} [2023-08-26 07:15:06,170 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 89 predicate places. [2023-08-26 07:15:06,170 INFO L495 AbstractCegarLoop]: Abstraction has has 195 places, 500 transitions, 5455 flow [2023-08-26 07:15:06,170 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) [2023-08-26 07:15:06,170 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:15:06,170 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] [2023-08-26 07:15:06,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-26 07:15:06,171 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)] === [2023-08-26 07:15:06,171 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:15:06,171 INFO L85 PathProgramCache]: Analyzing trace with hash 386357595, now seen corresponding path program 3 times [2023-08-26 07:15:06,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:15:06,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641862578] [2023-08-26 07:15:06,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:15:06,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:15:06,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:15:07,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:15:07,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:15:07,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641862578] [2023-08-26 07:15:07,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641862578] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:15:07,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:15:07,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-26 07:15:07,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656477067] [2023-08-26 07:15:07,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:15:07,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-26 07:15:07,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:15:07,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-26 07:15:07,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-08-26 07:15:07,598 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 494 [2023-08-26 07:15:07,599 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) [2023-08-26 07:15:07,599 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:15:07,599 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 494 [2023-08-26 07:15:07,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:15:11,171 INFO L124 PetriNetUnfolderBase]: 2457/5491 cut-off events. [2023-08-26 07:15:11,171 INFO L125 PetriNetUnfolderBase]: For 25836/25840 co-relation queries the response was YES. [2023-08-26 07:15:11,193 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. [2023-08-26 07:15:11,207 INFO L140 encePairwiseOnDemand]: 473/494 looper letters, 642 selfloop transitions, 133 changer transitions 9/791 dead transitions. [2023-08-26 07:15:11,207 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 791 transitions, 9182 flow [2023-08-26 07:15:11,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-26 07:15:11,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-26 07:15:11,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2188 transitions. [2023-08-26 07:15:11,214 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.29527665317139 [2023-08-26 07:15:11,214 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2188 transitions. [2023-08-26 07:15:11,214 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2188 transitions. [2023-08-26 07:15:11,215 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:15:11,215 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2188 transitions. [2023-08-26 07:15:11,219 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) [2023-08-26 07:15:11,227 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) [2023-08-26 07:15:11,228 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) [2023-08-26 07:15:11,228 INFO L175 Difference]: Start difference. First operand has 195 places, 500 transitions, 5455 flow. Second operand 15 states and 2188 transitions. [2023-08-26 07:15:11,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 791 transitions, 9182 flow [2023-08-26 07:15:11,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 791 transitions, 9142 flow, removed 20 selfloop flow, removed 0 redundant places. [2023-08-26 07:15:11,377 INFO L231 Difference]: Finished difference. Result has 214 places, 549 transitions, 6699 flow [2023-08-26 07:15:11,378 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} [2023-08-26 07:15:11,378 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 108 predicate places. [2023-08-26 07:15:11,378 INFO L495 AbstractCegarLoop]: Abstraction has has 214 places, 549 transitions, 6699 flow [2023-08-26 07:15:11,379 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) [2023-08-26 07:15:11,379 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:15:11,379 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] [2023-08-26 07:15:11,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-26 07:15:11,379 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)] === [2023-08-26 07:15:11,379 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:15:11,380 INFO L85 PathProgramCache]: Analyzing trace with hash -2081073691, now seen corresponding path program 4 times [2023-08-26 07:15:11,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:15:11,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130088392] [2023-08-26 07:15:11,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:15:11,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:15:11,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:15:12,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:15:12,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:15:12,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130088392] [2023-08-26 07:15:12,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130088392] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:15:12,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:15:12,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-26 07:15:12,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202902535] [2023-08-26 07:15:12,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:15:12,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-26 07:15:12,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:15:12,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-26 07:15:12,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-08-26 07:15:12,523 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 494 [2023-08-26 07:15:12,524 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) [2023-08-26 07:15:12,524 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:15:12,524 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 494 [2023-08-26 07:15:12,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:15:16,004 INFO L124 PetriNetUnfolderBase]: 2812/6282 cut-off events. [2023-08-26 07:15:16,005 INFO L125 PetriNetUnfolderBase]: For 37286/37290 co-relation queries the response was YES. [2023-08-26 07:15:16,030 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. [2023-08-26 07:15:16,044 INFO L140 encePairwiseOnDemand]: 475/494 looper letters, 668 selfloop transitions, 172 changer transitions 9/856 dead transitions. [2023-08-26 07:15:16,044 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 856 transitions, 11276 flow [2023-08-26 07:15:16,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-26 07:15:16,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-26 07:15:16,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2163 transitions. [2023-08-26 07:15:16,048 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.31275303643724695 [2023-08-26 07:15:16,049 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2163 transitions. [2023-08-26 07:15:16,049 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2163 transitions. [2023-08-26 07:15:16,049 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:15:16,050 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2163 transitions. [2023-08-26 07:15:16,053 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) [2023-08-26 07:15:16,060 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) [2023-08-26 07:15:16,061 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) [2023-08-26 07:15:16,061 INFO L175 Difference]: Start difference. First operand has 214 places, 549 transitions, 6699 flow. Second operand 14 states and 2163 transitions. [2023-08-26 07:15:16,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 856 transitions, 11276 flow [2023-08-26 07:15:16,224 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 856 transitions, 11220 flow, removed 10 selfloop flow, removed 5 redundant places. [2023-08-26 07:15:16,233 INFO L231 Difference]: Finished difference. Result has 232 places, 614 transitions, 8491 flow [2023-08-26 07:15:16,234 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} [2023-08-26 07:15:16,234 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 126 predicate places. [2023-08-26 07:15:16,234 INFO L495 AbstractCegarLoop]: Abstraction has has 232 places, 614 transitions, 8491 flow [2023-08-26 07:15:16,235 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) [2023-08-26 07:15:16,235 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:15:16,235 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] [2023-08-26 07:15:16,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-26 07:15:16,235 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)] === [2023-08-26 07:15:16,236 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:15:16,236 INFO L85 PathProgramCache]: Analyzing trace with hash -591885031, now seen corresponding path program 5 times [2023-08-26 07:15:16,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:15:16,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900395276] [2023-08-26 07:15:16,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:15:16,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:15:16,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:15:17,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:15:17,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:15:17,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900395276] [2023-08-26 07:15:17,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900395276] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:15:17,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:15:17,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-26 07:15:17,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518834364] [2023-08-26 07:15:17,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:15:17,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-26 07:15:17,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:15:17,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-26 07:15:17,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-08-26 07:15:17,523 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 494 [2023-08-26 07:15:17,524 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) [2023-08-26 07:15:17,524 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:15:17,524 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 494 [2023-08-26 07:15:17,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:15:20,978 INFO L124 PetriNetUnfolderBase]: 3102/6940 cut-off events. [2023-08-26 07:15:20,978 INFO L125 PetriNetUnfolderBase]: For 52151/52155 co-relation queries the response was YES. [2023-08-26 07:15:21,011 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. [2023-08-26 07:15:21,027 INFO L140 encePairwiseOnDemand]: 475/494 looper letters, 678 selfloop transitions, 197 changer transitions 9/891 dead transitions. [2023-08-26 07:15:21,027 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 891 transitions, 12859 flow [2023-08-26 07:15:21,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-26 07:15:21,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-26 07:15:21,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2021 transitions. [2023-08-26 07:15:21,032 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.31469947056991593 [2023-08-26 07:15:21,032 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2021 transitions. [2023-08-26 07:15:21,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2021 transitions. [2023-08-26 07:15:21,033 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:15:21,033 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2021 transitions. [2023-08-26 07:15:21,036 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) [2023-08-26 07:15:21,041 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) [2023-08-26 07:15:21,042 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) [2023-08-26 07:15:21,042 INFO L175 Difference]: Start difference. First operand has 232 places, 614 transitions, 8491 flow. Second operand 13 states and 2021 transitions. [2023-08-26 07:15:21,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 891 transitions, 12859 flow [2023-08-26 07:15:21,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 891 transitions, 12775 flow, removed 40 selfloop flow, removed 1 redundant places. [2023-08-26 07:15:21,285 INFO L231 Difference]: Finished difference. Result has 251 places, 659 transitions, 10201 flow [2023-08-26 07:15:21,285 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} [2023-08-26 07:15:21,286 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 145 predicate places. [2023-08-26 07:15:21,286 INFO L495 AbstractCegarLoop]: Abstraction has has 251 places, 659 transitions, 10201 flow [2023-08-26 07:15:21,286 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) [2023-08-26 07:15:21,286 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:15:21,286 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] [2023-08-26 07:15:21,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-26 07:15:21,287 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)] === [2023-08-26 07:15:21,287 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:15:21,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1884002618, now seen corresponding path program 1 times [2023-08-26 07:15:21,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:15:21,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733887924] [2023-08-26 07:15:21,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:15:21,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:15:21,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:15:22,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:15:22,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:15:22,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733887924] [2023-08-26 07:15:22,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733887924] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:15:22,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:15:22,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-26 07:15:22,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567008233] [2023-08-26 07:15:22,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:15:22,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-26 07:15:22,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:15:22,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-26 07:15:22,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-08-26 07:15:22,371 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 494 [2023-08-26 07:15:22,372 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) [2023-08-26 07:15:22,372 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:15:22,372 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 494 [2023-08-26 07:15:22,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:15:26,610 INFO L124 PetriNetUnfolderBase]: 3097/6973 cut-off events. [2023-08-26 07:15:26,610 INFO L125 PetriNetUnfolderBase]: For 63642/63646 co-relation queries the response was YES. [2023-08-26 07:15:26,652 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. [2023-08-26 07:15:26,668 INFO L140 encePairwiseOnDemand]: 474/494 looper letters, 644 selfloop transitions, 245 changer transitions 16/912 dead transitions. [2023-08-26 07:15:26,668 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 912 transitions, 13490 flow [2023-08-26 07:15:26,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-08-26 07:15:26,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-08-26 07:15:26,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 3393 transitions. [2023-08-26 07:15:26,673 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.28618421052631576 [2023-08-26 07:15:26,673 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 3393 transitions. [2023-08-26 07:15:26,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 3393 transitions. [2023-08-26 07:15:26,674 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:15:26,674 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 3393 transitions. [2023-08-26 07:15:26,678 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) [2023-08-26 07:15:26,685 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) [2023-08-26 07:15:26,686 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) [2023-08-26 07:15:26,686 INFO L175 Difference]: Start difference. First operand has 251 places, 659 transitions, 10201 flow. Second operand 24 states and 3393 transitions. [2023-08-26 07:15:26,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 912 transitions, 13490 flow [2023-08-26 07:15:27,069 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 272 places, 912 transitions, 13397 flow, removed 41 selfloop flow, removed 2 redundant places. [2023-08-26 07:15:27,080 INFO L231 Difference]: Finished difference. Result has 277 places, 667 transitions, 10958 flow [2023-08-26 07:15:27,081 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} [2023-08-26 07:15:27,081 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 171 predicate places. [2023-08-26 07:15:27,081 INFO L495 AbstractCegarLoop]: Abstraction has has 277 places, 667 transitions, 10958 flow [2023-08-26 07:15:27,082 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) [2023-08-26 07:15:27,082 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:15:27,082 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] [2023-08-26 07:15:27,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-26 07:15:27,082 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)] === [2023-08-26 07:15:27,082 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:15:27,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1577471982, now seen corresponding path program 1 times [2023-08-26 07:15:27,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:15:27,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707527762] [2023-08-26 07:15:27,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:15:27,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:15:27,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:15:28,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:15:28,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:15:28,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707527762] [2023-08-26 07:15:28,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707527762] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:15:28,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:15:28,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-26 07:15:28,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500110443] [2023-08-26 07:15:28,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:15:28,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-26 07:15:28,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:15:28,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-26 07:15:28,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-08-26 07:15:28,590 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 494 [2023-08-26 07:15:28,590 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) [2023-08-26 07:15:28,590 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:15:28,590 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 494 [2023-08-26 07:15:28,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:15:33,376 INFO L124 PetriNetUnfolderBase]: 3826/8581 cut-off events. [2023-08-26 07:15:33,376 INFO L125 PetriNetUnfolderBase]: For 95005/95011 co-relation queries the response was YES. [2023-08-26 07:15:33,434 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. [2023-08-26 07:15:33,455 INFO L140 encePairwiseOnDemand]: 472/494 looper letters, 932 selfloop transitions, 169 changer transitions 22/1130 dead transitions. [2023-08-26 07:15:33,455 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 1130 transitions, 18520 flow [2023-08-26 07:15:33,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-08-26 07:15:33,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-08-26 07:15:33,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3262 transitions. [2023-08-26 07:15:33,459 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.30014722119985277 [2023-08-26 07:15:33,459 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 3262 transitions. [2023-08-26 07:15:33,459 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 3262 transitions. [2023-08-26 07:15:33,459 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:15:33,459 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 3262 transitions. [2023-08-26 07:15:33,462 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) [2023-08-26 07:15:33,468 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) [2023-08-26 07:15:33,469 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) [2023-08-26 07:15:33,469 INFO L175 Difference]: Start difference. First operand has 277 places, 667 transitions, 10958 flow. Second operand 22 states and 3262 transitions. [2023-08-26 07:15:33,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 1130 transitions, 18520 flow [2023-08-26 07:15:33,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 268 places, 1130 transitions, 17896 flow, removed 138 selfloop flow, removed 30 redundant places. [2023-08-26 07:15:33,871 INFO L231 Difference]: Finished difference. Result has 272 places, 737 transitions, 12398 flow [2023-08-26 07:15:33,872 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} [2023-08-26 07:15:33,872 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 166 predicate places. [2023-08-26 07:15:33,872 INFO L495 AbstractCegarLoop]: Abstraction has has 272 places, 737 transitions, 12398 flow [2023-08-26 07:15:33,873 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) [2023-08-26 07:15:33,873 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:15:33,873 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] [2023-08-26 07:15:33,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-26 07:15:33,873 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)] === [2023-08-26 07:15:33,873 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:15:33,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1182180076, now seen corresponding path program 2 times [2023-08-26 07:15:33,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:15:33,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525036745] [2023-08-26 07:15:33,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:15:33,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:15:33,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:15:35,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:15:35,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:15:35,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525036745] [2023-08-26 07:15:35,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525036745] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:15:35,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:15:35,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-26 07:15:35,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187891753] [2023-08-26 07:15:35,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:15:35,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-26 07:15:35,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:15:35,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-26 07:15:35,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-08-26 07:15:35,121 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 494 [2023-08-26 07:15:35,122 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) [2023-08-26 07:15:35,122 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:15:35,122 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 494 [2023-08-26 07:15:35,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:15:40,071 INFO L124 PetriNetUnfolderBase]: 4144/9317 cut-off events. [2023-08-26 07:15:40,071 INFO L125 PetriNetUnfolderBase]: For 102068/102074 co-relation queries the response was YES. [2023-08-26 07:15:40,131 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. [2023-08-26 07:15:40,154 INFO L140 encePairwiseOnDemand]: 479/494 looper letters, 950 selfloop transitions, 159 changer transitions 74/1190 dead transitions. [2023-08-26 07:15:40,155 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 1190 transitions, 19244 flow [2023-08-26 07:15:40,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-08-26 07:15:40,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-08-26 07:15:40,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3173 transitions. [2023-08-26 07:15:40,157 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3058608058608059 [2023-08-26 07:15:40,157 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 3173 transitions. [2023-08-26 07:15:40,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 3173 transitions. [2023-08-26 07:15:40,158 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:15:40,158 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 3173 transitions. [2023-08-26 07:15:40,165 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) [2023-08-26 07:15:40,172 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) [2023-08-26 07:15:40,172 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) [2023-08-26 07:15:40,172 INFO L175 Difference]: Start difference. First operand has 272 places, 737 transitions, 12398 flow. Second operand 21 states and 3173 transitions. [2023-08-26 07:15:40,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 1190 transitions, 19244 flow [2023-08-26 07:15:40,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 1190 transitions, 18943 flow, removed 1 selfloop flow, removed 4 redundant places. [2023-08-26 07:15:40,516 INFO L231 Difference]: Finished difference. Result has 300 places, 781 transitions, 12908 flow [2023-08-26 07:15:40,517 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} [2023-08-26 07:15:40,517 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 194 predicate places. [2023-08-26 07:15:40,517 INFO L495 AbstractCegarLoop]: Abstraction has has 300 places, 781 transitions, 12908 flow [2023-08-26 07:15:40,518 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) [2023-08-26 07:15:40,518 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:15:40,518 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] [2023-08-26 07:15:40,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-26 07:15:40,518 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)] === [2023-08-26 07:15:40,518 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:15:40,518 INFO L85 PathProgramCache]: Analyzing trace with hash -486978112, now seen corresponding path program 3 times [2023-08-26 07:15:40,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:15:40,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457305248] [2023-08-26 07:15:40,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:15:40,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:15:40,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:15:41,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:15:41,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:15:41,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457305248] [2023-08-26 07:15:41,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457305248] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:15:41,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:15:41,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-26 07:15:41,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496391422] [2023-08-26 07:15:41,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:15:41,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-26 07:15:41,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:15:41,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-26 07:15:41,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-08-26 07:15:41,803 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 494 [2023-08-26 07:15:41,804 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) [2023-08-26 07:15:41,804 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:15:41,804 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 494 [2023-08-26 07:15:41,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:15:47,581 INFO L124 PetriNetUnfolderBase]: 4900/10967 cut-off events. [2023-08-26 07:15:47,581 INFO L125 PetriNetUnfolderBase]: For 125193/125199 co-relation queries the response was YES. [2023-08-26 07:15:47,642 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. [2023-08-26 07:15:47,672 INFO L140 encePairwiseOnDemand]: 472/494 looper letters, 1026 selfloop transitions, 194 changer transitions 23/1250 dead transitions. [2023-08-26 07:15:47,672 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 1250 transitions, 20904 flow [2023-08-26 07:15:47,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-08-26 07:15:47,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-08-26 07:15:47,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 3545 transitions. [2023-08-26 07:15:47,677 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2990047233468286 [2023-08-26 07:15:47,677 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 3545 transitions. [2023-08-26 07:15:47,677 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 3545 transitions. [2023-08-26 07:15:47,678 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:15:47,678 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 3545 transitions. [2023-08-26 07:15:47,683 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) [2023-08-26 07:15:47,691 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) [2023-08-26 07:15:47,693 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) [2023-08-26 07:15:47,693 INFO L175 Difference]: Start difference. First operand has 300 places, 781 transitions, 12908 flow. Second operand 24 states and 3545 transitions. [2023-08-26 07:15:47,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 1250 transitions, 20904 flow [2023-08-26 07:15:48,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 1250 transitions, 20711 flow, removed 15 selfloop flow, removed 5 redundant places. [2023-08-26 07:15:48,137 INFO L231 Difference]: Finished difference. Result has 323 places, 846 transitions, 14928 flow [2023-08-26 07:15:48,137 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} [2023-08-26 07:15:48,138 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 217 predicate places. [2023-08-26 07:15:48,138 INFO L495 AbstractCegarLoop]: Abstraction has has 323 places, 846 transitions, 14928 flow [2023-08-26 07:15:48,138 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) [2023-08-26 07:15:48,138 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:15:48,138 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] [2023-08-26 07:15:48,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-26 07:15:48,139 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)] === [2023-08-26 07:15:48,139 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:15:48,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1331434038, now seen corresponding path program 1 times [2023-08-26 07:15:48,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:15:48,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699084607] [2023-08-26 07:15:48,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:15:48,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:15:48,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:15:49,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:15:49,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:15:49,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699084607] [2023-08-26 07:15:49,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699084607] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:15:49,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:15:49,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-26 07:15:49,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472625921] [2023-08-26 07:15:49,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:15:49,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-26 07:15:49,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:15:49,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-26 07:15:49,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-26 07:15:49,528 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 494 [2023-08-26 07:15:49,529 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) [2023-08-26 07:15:49,529 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:15:49,529 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 494 [2023-08-26 07:15:49,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:15:54,949 INFO L124 PetriNetUnfolderBase]: 4878/10918 cut-off events. [2023-08-26 07:15:54,950 INFO L125 PetriNetUnfolderBase]: For 133081/133087 co-relation queries the response was YES. [2023-08-26 07:15:55,020 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. [2023-08-26 07:15:55,050 INFO L140 encePairwiseOnDemand]: 470/494 looper letters, 842 selfloop transitions, 216 changer transitions 54/1119 dead transitions. [2023-08-26 07:15:55,051 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 1119 transitions, 19595 flow [2023-08-26 07:15:55,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-26 07:15:55,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-26 07:15:55,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1923 transitions. [2023-08-26 07:15:55,053 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3243927125506073 [2023-08-26 07:15:55,053 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1923 transitions. [2023-08-26 07:15:55,054 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1923 transitions. [2023-08-26 07:15:55,054 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:15:55,054 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1923 transitions. [2023-08-26 07:15:55,056 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) [2023-08-26 07:15:55,060 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) [2023-08-26 07:15:55,060 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) [2023-08-26 07:15:55,061 INFO L175 Difference]: Start difference. First operand has 323 places, 846 transitions, 14928 flow. Second operand 12 states and 1923 transitions. [2023-08-26 07:15:55,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 1119 transitions, 19595 flow [2023-08-26 07:15:55,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 1119 transitions, 19344 flow, removed 9 selfloop flow, removed 16 redundant places. [2023-08-26 07:15:55,523 INFO L231 Difference]: Finished difference. Result has 322 places, 854 transitions, 15368 flow [2023-08-26 07:15:55,524 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} [2023-08-26 07:15:55,524 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 216 predicate places. [2023-08-26 07:15:55,525 INFO L495 AbstractCegarLoop]: Abstraction has has 322 places, 854 transitions, 15368 flow [2023-08-26 07:15:55,525 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) [2023-08-26 07:15:55,525 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:15:55,525 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] [2023-08-26 07:15:55,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-26 07:15:55,525 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)] === [2023-08-26 07:15:55,526 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:15:55,526 INFO L85 PathProgramCache]: Analyzing trace with hash -239139004, now seen corresponding path program 4 times [2023-08-26 07:15:55,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:15:55,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773699452] [2023-08-26 07:15:55,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:15:55,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:15:55,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:15:56,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:15:56,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:15:56,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773699452] [2023-08-26 07:15:56,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773699452] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:15:56,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:15:56,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-26 07:15:56,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337831902] [2023-08-26 07:15:56,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:15:56,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-26 07:15:56,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:15:56,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-26 07:15:56,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-08-26 07:15:56,974 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 494 [2023-08-26 07:15:56,975 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) [2023-08-26 07:15:56,975 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:15:56,975 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 494 [2023-08-26 07:15:56,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:16:03,638 INFO L124 PetriNetUnfolderBase]: 5642/12610 cut-off events. [2023-08-26 07:16:03,638 INFO L125 PetriNetUnfolderBase]: For 170614/170620 co-relation queries the response was YES. [2023-08-26 07:16:03,719 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. [2023-08-26 07:16:03,751 INFO L140 encePairwiseOnDemand]: 473/494 looper letters, 1111 selfloop transitions, 216 changer transitions 24/1358 dead transitions. [2023-08-26 07:16:03,751 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 344 places, 1358 transitions, 24737 flow [2023-08-26 07:16:03,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-08-26 07:16:03,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-08-26 07:16:03,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3421 transitions. [2023-08-26 07:16:03,755 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3010913571554304 [2023-08-26 07:16:03,755 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 3421 transitions. [2023-08-26 07:16:03,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 3421 transitions. [2023-08-26 07:16:03,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:16:03,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 3421 transitions. [2023-08-26 07:16:03,759 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) [2023-08-26 07:16:03,766 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) [2023-08-26 07:16:03,767 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) [2023-08-26 07:16:03,767 INFO L175 Difference]: Start difference. First operand has 322 places, 854 transitions, 15368 flow. Second operand 23 states and 3421 transitions. [2023-08-26 07:16:03,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 344 places, 1358 transitions, 24737 flow [2023-08-26 07:16:04,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 338 places, 1358 transitions, 24515 flow, removed 15 selfloop flow, removed 6 redundant places. [2023-08-26 07:16:04,409 INFO L231 Difference]: Finished difference. Result has 346 places, 934 transitions, 17933 flow [2023-08-26 07:16:04,410 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} [2023-08-26 07:16:04,411 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 240 predicate places. [2023-08-26 07:16:04,411 INFO L495 AbstractCegarLoop]: Abstraction has has 346 places, 934 transitions, 17933 flow [2023-08-26 07:16:04,411 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) [2023-08-26 07:16:04,411 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:16:04,411 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] [2023-08-26 07:16:04,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-26 07:16:04,412 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)] === [2023-08-26 07:16:04,412 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:16:04,412 INFO L85 PathProgramCache]: Analyzing trace with hash 813163844, now seen corresponding path program 5 times [2023-08-26 07:16:04,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:16:04,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780632706] [2023-08-26 07:16:04,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:16:04,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:16:04,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:16:05,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:16:05,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:16:05,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780632706] [2023-08-26 07:16:05,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780632706] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:16:05,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:16:05,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-26 07:16:05,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026188085] [2023-08-26 07:16:05,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:16:05,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-26 07:16:05,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:16:05,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-26 07:16:05,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2023-08-26 07:16:05,650 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 494 [2023-08-26 07:16:05,651 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) [2023-08-26 07:16:05,651 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:16:05,651 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 494 [2023-08-26 07:16:05,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:16:11,951 INFO L124 PetriNetUnfolderBase]: 5632/12531 cut-off events. [2023-08-26 07:16:11,951 INFO L125 PetriNetUnfolderBase]: For 179772/179778 co-relation queries the response was YES. [2023-08-26 07:16:12,053 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. [2023-08-26 07:16:12,088 INFO L140 encePairwiseOnDemand]: 483/494 looper letters, 926 selfloop transitions, 86 changer transitions 52/1071 dead transitions. [2023-08-26 07:16:12,089 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 355 places, 1071 transitions, 21315 flow [2023-08-26 07:16:12,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-26 07:16:12,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-26 07:16:12,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1656 transitions. [2023-08-26 07:16:12,091 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.30474788369525213 [2023-08-26 07:16:12,091 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1656 transitions. [2023-08-26 07:16:12,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1656 transitions. [2023-08-26 07:16:12,091 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:16:12,091 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1656 transitions. [2023-08-26 07:16:12,092 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) [2023-08-26 07:16:12,095 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) [2023-08-26 07:16:12,095 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) [2023-08-26 07:16:12,095 INFO L175 Difference]: Start difference. First operand has 346 places, 934 transitions, 17933 flow. Second operand 11 states and 1656 transitions. [2023-08-26 07:16:12,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 355 places, 1071 transitions, 21315 flow [2023-08-26 07:16:12,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 1071 transitions, 20764 flow, removed 27 selfloop flow, removed 15 redundant places. [2023-08-26 07:16:12,894 INFO L231 Difference]: Finished difference. Result has 340 places, 921 transitions, 17397 flow [2023-08-26 07:16:12,895 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} [2023-08-26 07:16:12,895 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 234 predicate places. [2023-08-26 07:16:12,895 INFO L495 AbstractCegarLoop]: Abstraction has has 340 places, 921 transitions, 17397 flow [2023-08-26 07:16:12,896 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) [2023-08-26 07:16:12,896 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:16:12,896 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] [2023-08-26 07:16:12,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-26 07:16:12,896 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)] === [2023-08-26 07:16:12,896 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:16:12,896 INFO L85 PathProgramCache]: Analyzing trace with hash 745080649, now seen corresponding path program 1 times [2023-08-26 07:16:12,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:16:12,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913648263] [2023-08-26 07:16:12,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:16:12,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:16:12,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 07:16:12,970 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 07:16:13,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 07:16:13,069 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 07:16:13,070 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 07:16:13,071 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (36 of 37 remaining) [2023-08-26 07:16:13,073 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (35 of 37 remaining) [2023-08-26 07:16:13,073 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (34 of 37 remaining) [2023-08-26 07:16:13,073 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (33 of 37 remaining) [2023-08-26 07:16:13,075 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (32 of 37 remaining) [2023-08-26 07:16:13,075 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (31 of 37 remaining) [2023-08-26 07:16:13,075 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (30 of 37 remaining) [2023-08-26 07:16:13,075 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (29 of 37 remaining) [2023-08-26 07:16:13,076 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (28 of 37 remaining) [2023-08-26 07:16:13,076 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (27 of 37 remaining) [2023-08-26 07:16:13,076 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (26 of 37 remaining) [2023-08-26 07:16:13,076 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (25 of 37 remaining) [2023-08-26 07:16:13,076 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (24 of 37 remaining) [2023-08-26 07:16:13,076 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (23 of 37 remaining) [2023-08-26 07:16:13,076 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (22 of 37 remaining) [2023-08-26 07:16:13,076 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (21 of 37 remaining) [2023-08-26 07:16:13,076 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (20 of 37 remaining) [2023-08-26 07:16:13,076 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (19 of 37 remaining) [2023-08-26 07:16:13,077 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (18 of 37 remaining) [2023-08-26 07:16:13,077 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (17 of 37 remaining) [2023-08-26 07:16:13,077 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (16 of 37 remaining) [2023-08-26 07:16:13,077 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 37 remaining) [2023-08-26 07:16:13,077 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (14 of 37 remaining) [2023-08-26 07:16:13,077 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (13 of 37 remaining) [2023-08-26 07:16:13,077 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (12 of 37 remaining) [2023-08-26 07:16:13,077 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (11 of 37 remaining) [2023-08-26 07:16:13,077 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (10 of 37 remaining) [2023-08-26 07:16:13,077 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (9 of 37 remaining) [2023-08-26 07:16:13,077 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (8 of 37 remaining) [2023-08-26 07:16:13,078 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (7 of 37 remaining) [2023-08-26 07:16:13,078 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (6 of 37 remaining) [2023-08-26 07:16:13,078 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 37 remaining) [2023-08-26 07:16:13,078 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (4 of 37 remaining) [2023-08-26 07:16:13,078 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (3 of 37 remaining) [2023-08-26 07:16:13,078 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (2 of 37 remaining) [2023-08-26 07:16:13,078 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (1 of 37 remaining) [2023-08-26 07:16:13,078 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (0 of 37 remaining) [2023-08-26 07:16:13,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-26 07:16:13,079 INFO L445 BasicCegarLoop]: Path program histogram: [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:16:13,085 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 07:16:13,085 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 07:16:13,156 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 07:16:13 BasicIcfg [2023-08-26 07:16:13,156 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 07:16:13,158 INFO L158 Benchmark]: Toolchain (without parser) took 468903.20ms. Allocated memory was 375.4MB in the beginning and 6.2GB in the end (delta: 5.8GB). Free memory was 350.0MB in the beginning and 4.8GB in the end (delta: -4.4GB). Peak memory consumption was 1.4GB. Max. memory is 16.0GB. [2023-08-26 07:16:13,158 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 375.4MB. Free memory is still 352.9MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 07:16:13,159 INFO L158 Benchmark]: CACSL2BoogieTranslator took 693.30ms. Allocated memory is still 375.4MB. Free memory was 350.0MB in the beginning and 310.5MB in the end (delta: 39.4MB). Peak memory consumption was 37.7MB. Max. memory is 16.0GB. [2023-08-26 07:16:13,159 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.57ms. Allocated memory is still 375.4MB. Free memory was 310.5MB in the beginning and 307.0MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-26 07:16:13,159 INFO L158 Benchmark]: Boogie Preprocessor took 66.43ms. Allocated memory is still 375.4MB. Free memory was 307.0MB in the beginning and 303.8MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-26 07:16:13,159 INFO L158 Benchmark]: RCFGBuilder took 673.27ms. Allocated memory is still 375.4MB. Free memory was 303.8MB in the beginning and 323.4MB in the end (delta: -19.6MB). Peak memory consumption was 7.7MB. Max. memory is 16.0GB. [2023-08-26 07:16:13,160 INFO L158 Benchmark]: TraceAbstraction took 467375.78ms. Allocated memory was 375.4MB in the beginning and 6.2GB in the end (delta: 5.8GB). Free memory was 322.4MB in the beginning and 4.8GB in the end (delta: -4.5GB). Peak memory consumption was 1.4GB. Max. memory is 16.0GB. [2023-08-26 07:16:13,161 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 375.4MB. Free memory is still 352.9MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 693.30ms. Allocated memory is still 375.4MB. Free memory was 350.0MB in the beginning and 310.5MB in the end (delta: 39.4MB). Peak memory consumption was 37.7MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 89.57ms. Allocated memory is still 375.4MB. Free memory was 310.5MB in the beginning and 307.0MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 66.43ms. Allocated memory is still 375.4MB. Free memory was 307.0MB in the beginning and 303.8MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * RCFGBuilder took 673.27ms. Allocated memory is still 375.4MB. Free memory was 303.8MB in the beginning and 323.4MB in the end (delta: -19.6MB). Peak memory consumption was 7.7MB. Max. memory is 16.0GB. * TraceAbstraction took 467375.78ms. Allocated memory was 375.4MB in the beginning and 6.2GB in the end (delta: 5.8GB). Free memory was 322.4MB in the beginning and 4.8GB in the end (delta: -4.5GB). Peak memory consumption was 1.4GB. 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: 368.2s, 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: p = A->next [1254] * C: p = A->next [1254] * C: A->next [1254] * C: A->next->datum [1235] * C: p -> next = ((void *)0) [1229] * C: printf("%d\n", p->datum) [1255] * C: p -> datum = x [1228] * C: A->next = p [1248] * C: A->next [1235] * C: init(A,3) [1247] * C: p -> datum = x [1228] * C: p = B->next [1258] * C: printf("%d\n", p->datum) [1259] * C: p = B->next [1258] * C: A = malloc(sizeof(struct s)) [1246] * C: printf("%d\n", p->datum) [1255] * C: B->next = p [1251] * C: A->next = p [1248] * C: B->next = p [1251] * C: p -> datum = x [1228] * C: A->next->datum++ [1235] * C: B->next = p [1251] * C: B->next [1258] * C: p -> datum = x [1228] * C: A->next->datum++ [1235] * C: A->next->datum [1235] * C: printf("%d\n", p->datum) [1255] * C: B->next [1251] * C: A->next->datum++ [1235] * C: A->next->datum [1235] * C: printf("%d\n", p->datum) [1255] * C: A->next [1248] * C: A->next = p [1248] * C: A->next->datum++ [1235] * C: p = B->next [1258] * C: p = A->next [1254] * C: init(B,5) [1250] * C: B->next = p [1251] * C: B = malloc(sizeof(struct s)) [1249] * C: A->next = p [1248] * C: p = B->next [1258] * C: A->next->datum [1235] * C: p -> next = ((void *)0) [1229] * C: p = A->next [1254] * C: p -> next = ((void *)0) [1229] * C: p -> next = ((void *)0) [1229] 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: 467.2s, OverallIterations: 25, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 77.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 368.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3233 SdHoareTripleChecker+Valid, 43.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3233 mSDsluCounter, 789 SdHoareTripleChecker+Invalid, 41.0s 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, 2.8s 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, 1.0s SatisfiabilityAnalysisTime, 19.4s 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! [2023-08-26 07:16:13,256 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...