/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_24-evilcollapse_nr.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 07:26:49,779 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 07:26:49,834 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 07:26:49,840 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 07:26:49,840 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 07:26:49,872 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 07:26:49,872 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 07:26:49,873 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 07:26:49,873 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 07:26:49,874 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 07:26:49,874 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 07:26:49,874 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 07:26:49,875 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 07:26:49,875 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 07:26:49,875 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 07:26:49,876 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 07:26:49,876 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 07:26:49,876 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 07:26:49,877 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 07:26:49,877 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 07:26:49,877 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 07:26:49,881 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 07:26:49,881 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 07:26:49,882 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 07:26:49,884 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 07:26:49,884 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 07:26:49,885 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 07:26:49,885 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 07:26:49,885 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 07:26:49,885 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 07:26:49,885 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 07:26:49,886 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 07:26:49,886 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 07:26:49,886 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 07:26:49,886 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 07:26:49,887 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-26 07:26:50,167 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 07:26:50,191 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 07:26:50,193 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 07:26:50,195 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 07:26:50,195 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 07:26:50,196 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/09-regions_24-evilcollapse_nr.i [2023-08-26 07:26:51,302 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 07:26:51,570 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 07:26:51,570 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/09-regions_24-evilcollapse_nr.i [2023-08-26 07:26:51,589 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85aa26d09/1d67da18676740449d10096840cc5c49/FLAGeac5afc07 [2023-08-26 07:26:51,601 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85aa26d09/1d67da18676740449d10096840cc5c49 [2023-08-26 07:26:51,603 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 07:26:51,604 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 07:26:51,604 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 07:26:51,605 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 07:26:51,607 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 07:26:51,607 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 07:26:51" (1/1) ... [2023-08-26 07:26:51,608 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ee8ad10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:26:51, skipping insertion in model container [2023-08-26 07:26:51,608 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 07:26:51" (1/1) ... [2023-08-26 07:26:51,655 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 07:26:52,049 WARN L1561 CHandler]: Possible shadowing of function new [2023-08-26 07:26:52,050 WARN L1561 CHandler]: Possible shadowing of function new [2023-08-26 07:26:52,053 WARN L1561 CHandler]: Possible shadowing of function new [2023-08-26 07:26:52,056 WARN L1561 CHandler]: Possible shadowing of function new [2023-08-26 07:26:52,091 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 07:26:52,112 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 07:26:52,138 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [249] [2023-08-26 07:26:52,140 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [249] [2023-08-26 07:26:52,159 WARN L1561 CHandler]: Possible shadowing of function new [2023-08-26 07:26:52,161 WARN L1561 CHandler]: Possible shadowing of function new [2023-08-26 07:26:52,162 WARN L1561 CHandler]: Possible shadowing of function new [2023-08-26 07:26:52,167 WARN L1561 CHandler]: Possible shadowing of function new [2023-08-26 07:26:52,175 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: long [1071] [2023-08-26 07:26:52,176 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 07:26:52,236 INFO L206 MainTranslator]: Completed translation [2023-08-26 07:26:52,236 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:26:52 WrapperNode [2023-08-26 07:26:52,237 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 07:26:52,238 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 07:26:52,238 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 07:26:52,238 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 07:26:52,243 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:26:52" (1/1) ... [2023-08-26 07:26:52,270 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:26:52" (1/1) ... [2023-08-26 07:26:52,305 INFO L138 Inliner]: procedures = 273, calls = 38, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 262 [2023-08-26 07:26:52,305 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 07:26:52,306 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 07:26:52,306 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 07:26:52,306 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 07:26:52,313 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:26:52" (1/1) ... [2023-08-26 07:26:52,313 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:26:52" (1/1) ... [2023-08-26 07:26:52,318 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:26:52" (1/1) ... [2023-08-26 07:26:52,319 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:26:52" (1/1) ... [2023-08-26 07:26:52,335 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:26:52" (1/1) ... [2023-08-26 07:26:52,338 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:26:52" (1/1) ... [2023-08-26 07:26:52,340 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:26:52" (1/1) ... [2023-08-26 07:26:52,342 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:26:52" (1/1) ... [2023-08-26 07:26:52,345 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 07:26:52,346 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 07:26:52,346 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 07:26:52,346 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 07:26:52,347 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:26:52" (1/1) ... [2023-08-26 07:26:52,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 07:26:52,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 07:26:52,374 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 07:26:52,401 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 07:26:52,420 INFO L130 BoogieDeclarations]: Found specification of procedure f [2023-08-26 07:26:52,421 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2023-08-26 07:26:52,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 07:26:52,421 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-26 07:26:52,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 07:26:52,421 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 07:26:52,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 07:26:52,421 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-26 07:26:52,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-26 07:26:52,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 07:26:52,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-26 07:26:52,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 07:26:52,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 07:26:52,423 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 07:26:52,551 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 07:26:52,552 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 07:26:53,010 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 07:26:53,017 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 07:26:53,017 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-08-26 07:26:53,019 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 07:26:53 BoogieIcfgContainer [2023-08-26 07:26:53,019 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 07:26:53,021 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 07:26:53,021 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 07:26:53,023 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 07:26:53,023 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 07:26:51" (1/3) ... [2023-08-26 07:26:53,024 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6050ed71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 07:26:53, skipping insertion in model container [2023-08-26 07:26:53,024 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:26:52" (2/3) ... [2023-08-26 07:26:53,024 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6050ed71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 07:26:53, skipping insertion in model container [2023-08-26 07:26:53,024 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 07:26:53" (3/3) ... [2023-08-26 07:26:53,025 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_24-evilcollapse_nr.i [2023-08-26 07:26:53,040 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 07:26:53,040 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-08-26 07:26:53,040 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 07:26:53,129 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 07:26:53,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 346 places, 356 transitions, 722 flow [2023-08-26 07:26:53,305 INFO L124 PetriNetUnfolderBase]: 17/354 cut-off events. [2023-08-26 07:26:53,305 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 07:26:53,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 361 conditions, 354 events. 17/354 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 772 event pairs, 0 based on Foata normal form. 0/317 useless extension candidates. Maximal degree in co-relation 279. Up to 2 conditions per place. [2023-08-26 07:26:53,314 INFO L82 GeneralOperation]: Start removeDead. Operand has 346 places, 356 transitions, 722 flow [2023-08-26 07:26:53,323 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 344 places, 354 transitions, 714 flow [2023-08-26 07:26:53,336 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 07:26:53,346 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 344 places, 354 transitions, 714 flow [2023-08-26 07:26:53,349 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 344 places, 354 transitions, 714 flow [2023-08-26 07:26:53,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 344 places, 354 transitions, 714 flow [2023-08-26 07:26:53,410 INFO L124 PetriNetUnfolderBase]: 17/354 cut-off events. [2023-08-26 07:26:53,411 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 07:26:53,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 361 conditions, 354 events. 17/354 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 774 event pairs, 0 based on Foata normal form. 0/317 useless extension candidates. Maximal degree in co-relation 279. Up to 2 conditions per place. [2023-08-26 07:26:53,422 INFO L119 LiptonReduction]: Number of co-enabled transitions 12194 [2023-08-26 07:27:58,601 WARN L234 SmtUtils]: Spent 18.25s on a formula simplification that was a NOOP. DAG size: 205 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 07:28:14,264 WARN L234 SmtUtils]: Spent 15.66s on a formula simplification that was a NOOP. DAG size: 193 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 07:28:33,947 WARN L234 SmtUtils]: Spent 19.68s on a formula simplification that was a NOOP. DAG size: 205 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 07:28:51,087 WARN L234 SmtUtils]: Spent 17.14s on a formula simplification that was a NOOP. DAG size: 193 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 07:31:09,773 WARN L234 SmtUtils]: Spent 2.15m on a formula simplification that was a NOOP. DAG size: 262 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 07:33:16,000 WARN L234 SmtUtils]: Spent 2.10m on a formula simplification that was a NOOP. DAG size: 252 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 07:35:14,536 WARN L234 SmtUtils]: Spent 1.98m on a formula simplification that was a NOOP. DAG size: 262 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 07:37:25,629 WARN L234 SmtUtils]: Spent 2.18m on a formula simplification that was a NOOP. DAG size: 252 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 07:37:25,639 INFO L134 LiptonReduction]: Checked pairs total: 46922 [2023-08-26 07:37:25,640 INFO L136 LiptonReduction]: Total number of compositions: 338 [2023-08-26 07:37:25,651 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 07:37:25,655 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;@228b2450, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 07:37:25,655 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2023-08-26 07:37:25,657 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 07:37:25,657 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2023-08-26 07:37:25,657 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 07:37:25,657 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:37:25,658 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-26 07:37:25,658 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-26 07:37:25,662 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:37:25,662 INFO L85 PathProgramCache]: Analyzing trace with hash 35954, now seen corresponding path program 1 times [2023-08-26 07:37:25,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:37:25,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633570094] [2023-08-26 07:37:25,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:37:25,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:37:25,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:37:25,822 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 07:37:25,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:37:25,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633570094] [2023-08-26 07:37:25,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633570094] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:37:25,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:37:25,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 07:37:25,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075911782] [2023-08-26 07:37:25,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:37:25,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-26 07:37:25,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:37:25,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-26 07:37:25,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-26 07:37:25,862 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 344 out of 694 [2023-08-26 07:37:25,866 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 85 transitions, 176 flow. Second operand has 2 states, 2 states have (on average 345.0) internal successors, (690), 2 states have internal predecessors, (690), 0 states have call successors, (0), 0 states 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 07:37:25,866 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:37:25,866 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 344 of 694 [2023-08-26 07:37:25,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:37:27,477 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 07:37:27,683 INFO L124 PetriNetUnfolderBase]: 397/1263 cut-off events. [2023-08-26 07:37:27,683 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-08-26 07:37:27,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1929 conditions, 1263 events. 397/1263 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 7808 event pairs, 307 based on Foata normal form. 0/1154 useless extension candidates. Maximal degree in co-relation 1911. Up to 641 conditions per place. [2023-08-26 07:37:27,691 INFO L140 encePairwiseOnDemand]: 682/694 looper letters, 32 selfloop transitions, 0 changer transitions 0/73 dead transitions. [2023-08-26 07:37:27,692 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 73 transitions, 216 flow [2023-08-26 07:37:27,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-26 07:37:27,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-26 07:37:27,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 732 transitions. [2023-08-26 07:37:27,712 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5273775216138329 [2023-08-26 07:37:27,712 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 732 transitions. [2023-08-26 07:37:27,713 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 732 transitions. [2023-08-26 07:37:27,716 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:37:27,718 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 732 transitions. [2023-08-26 07:37:27,723 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 366.0) internal successors, (732), 2 states have internal predecessors, (732), 0 states have call successors, (0), 0 states 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 07:37:27,729 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 694.0) internal successors, (2082), 3 states have internal predecessors, (2082), 0 states have call successors, (0), 0 states 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 07:37:27,730 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 694.0) internal successors, (2082), 3 states have internal predecessors, (2082), 0 states have call successors, (0), 0 states 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 07:37:27,731 INFO L175 Difference]: Start difference. First operand has 86 places, 85 transitions, 176 flow. Second operand 2 states and 732 transitions. [2023-08-26 07:37:27,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 73 transitions, 216 flow [2023-08-26 07:37:27,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 73 transitions, 214 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 07:37:27,737 INFO L231 Difference]: Finished difference. Result has 73 places, 73 transitions, 150 flow [2023-08-26 07:37:27,738 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=694, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=150, PETRI_PLACES=73, PETRI_TRANSITIONS=73} [2023-08-26 07:37:27,742 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -13 predicate places. [2023-08-26 07:37:27,742 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 73 transitions, 150 flow [2023-08-26 07:37:27,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 345.0) internal successors, (690), 2 states have internal predecessors, (690), 0 states have call successors, (0), 0 states 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 07:37:27,743 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:37:27,744 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:37:27,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 07:37:27,747 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-26 07:37:27,754 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:37:27,754 INFO L85 PathProgramCache]: Analyzing trace with hash 867694808, now seen corresponding path program 1 times [2023-08-26 07:37:27,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:37:27,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456014950] [2023-08-26 07:37:27,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:37:27,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:37:27,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:37:28,042 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 07:37:28,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:37:28,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456014950] [2023-08-26 07:37:28,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456014950] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:37:28,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:37:28,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 07:37:28,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887354077] [2023-08-26 07:37:28,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:37:28,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 07:37:28,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:37:28,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 07:37:28,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 07:37:28,047 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 333 out of 694 [2023-08-26 07:37:28,048 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 73 transitions, 150 flow. Second operand has 3 states, 3 states have (on average 335.0) internal successors, (1005), 3 states have internal predecessors, (1005), 0 states have call successors, (0), 0 states 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 07:37:28,048 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:37:28,048 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 333 of 694 [2023-08-26 07:37:28,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:37:30,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 07:37:30,315 INFO L124 PetriNetUnfolderBase]: 398/1266 cut-off events. [2023-08-26 07:37:30,315 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 07:37:30,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1934 conditions, 1266 events. 398/1266 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 7802 event pairs, 307 based on Foata normal form. 0/1156 useless extension candidates. Maximal degree in co-relation 1931. Up to 641 conditions per place. [2023-08-26 07:37:30,321 INFO L140 encePairwiseOnDemand]: 691/694 looper letters, 33 selfloop transitions, 2 changer transitions 0/76 dead transitions. [2023-08-26 07:37:30,321 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 76 transitions, 226 flow [2023-08-26 07:37:30,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 07:37:30,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 07:37:30,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1035 transitions. [2023-08-26 07:37:30,324 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49711815561959655 [2023-08-26 07:37:30,325 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1035 transitions. [2023-08-26 07:37:30,325 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1035 transitions. [2023-08-26 07:37:30,325 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:37:30,325 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1035 transitions. [2023-08-26 07:37:30,327 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 345.0) internal successors, (1035), 3 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states 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 07:37:30,331 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 694.0) internal successors, (2776), 4 states have internal predecessors, (2776), 0 states have call successors, (0), 0 states 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 07:37:30,332 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 694.0) internal successors, (2776), 4 states have internal predecessors, (2776), 0 states have call successors, (0), 0 states 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 07:37:30,332 INFO L175 Difference]: Start difference. First operand has 73 places, 73 transitions, 150 flow. Second operand 3 states and 1035 transitions. [2023-08-26 07:37:30,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 76 transitions, 226 flow [2023-08-26 07:37:30,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 76 transitions, 226 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 07:37:30,334 INFO L231 Difference]: Finished difference. Result has 76 places, 74 transitions, 162 flow [2023-08-26 07:37:30,334 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=694, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=162, PETRI_PLACES=76, PETRI_TRANSITIONS=74} [2023-08-26 07:37:30,335 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -10 predicate places. [2023-08-26 07:37:30,335 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 74 transitions, 162 flow [2023-08-26 07:37:30,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 335.0) internal successors, (1005), 3 states have internal predecessors, (1005), 0 states have call successors, (0), 0 states 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 07:37:30,336 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:37:30,336 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:37:30,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 07:37:30,336 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-26 07:37:30,337 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:37:30,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1683234004, now seen corresponding path program 1 times [2023-08-26 07:37:30,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:37:30,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703290641] [2023-08-26 07:37:30,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:37:30,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:37:30,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:37:30,401 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:37:30,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:37:30,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703290641] [2023-08-26 07:37:30,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703290641] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:37:30,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:37:30,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 07:37:30,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599064130] [2023-08-26 07:37:30,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:37:30,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 07:37:30,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:37:30,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 07:37:30,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 07:37:30,405 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 694 [2023-08-26 07:37:30,406 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 74 transitions, 162 flow. Second operand has 3 states, 3 states have (on average 338.6666666666667) internal successors, (1016), 3 states have internal predecessors, (1016), 0 states have call successors, (0), 0 states 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 07:37:30,406 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:37:30,406 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 694 [2023-08-26 07:37:30,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:37:31,695 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 07:37:32,669 INFO L124 PetriNetUnfolderBase]: 398/1268 cut-off events. [2023-08-26 07:37:32,669 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 07:37:32,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1945 conditions, 1268 events. 398/1268 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 7791 event pairs, 307 based on Foata normal form. 2/1163 useless extension candidates. Maximal degree in co-relation 1940. Up to 644 conditions per place. [2023-08-26 07:37:32,675 INFO L140 encePairwiseOnDemand]: 691/694 looper letters, 32 selfloop transitions, 2 changer transitions 0/75 dead transitions. [2023-08-26 07:37:32,675 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 75 transitions, 232 flow [2023-08-26 07:37:32,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 07:37:32,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 07:37:32,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1042 transitions. [2023-08-26 07:37:32,678 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5004803073967339 [2023-08-26 07:37:32,678 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1042 transitions. [2023-08-26 07:37:32,678 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1042 transitions. [2023-08-26 07:37:32,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:37:32,679 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1042 transitions. [2023-08-26 07:37:32,681 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 347.3333333333333) internal successors, (1042), 3 states have internal predecessors, (1042), 0 states have call successors, (0), 0 states 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 07:37:32,685 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 694.0) internal successors, (2776), 4 states have internal predecessors, (2776), 0 states have call successors, (0), 0 states 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 07:37:32,686 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 694.0) internal successors, (2776), 4 states have internal predecessors, (2776), 0 states have call successors, (0), 0 states 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 07:37:32,686 INFO L175 Difference]: Start difference. First operand has 76 places, 74 transitions, 162 flow. Second operand 3 states and 1042 transitions. [2023-08-26 07:37:32,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 75 transitions, 232 flow [2023-08-26 07:37:32,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 75 transitions, 230 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 07:37:32,688 INFO L231 Difference]: Finished difference. Result has 78 places, 75 transitions, 174 flow [2023-08-26 07:37:32,689 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=694, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=174, PETRI_PLACES=78, PETRI_TRANSITIONS=75} [2023-08-26 07:37:32,690 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -8 predicate places. [2023-08-26 07:37:32,690 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 75 transitions, 174 flow [2023-08-26 07:37:32,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 338.6666666666667) internal successors, (1016), 3 states have internal predecessors, (1016), 0 states have call successors, (0), 0 states 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 07:37:32,692 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:37:32,692 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:37:32,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 07:37:32,692 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-26 07:37:32,693 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:37:32,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1610773092, now seen corresponding path program 1 times [2023-08-26 07:37:32,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:37:32,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729511460] [2023-08-26 07:37:32,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:37:32,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:37:32,755 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-26 07:37:32,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1538603800] [2023-08-26 07:37:32,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:37:32,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 07:37:32,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 07:37:32,761 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 07:37:32,795 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-26 07:37:33,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:37:33,112 INFO L262 TraceCheckSpWp]: Trace formula consists of 1124 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-26 07:37:33,116 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 07:37:33,145 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:37:33,145 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 07:37:33,165 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:37:33,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:37:33,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729511460] [2023-08-26 07:37:33,166 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-26 07:37:33,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1538603800] [2023-08-26 07:37:33,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1538603800] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 07:37:33,167 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-08-26 07:37:33,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-08-26 07:37:33,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779312183] [2023-08-26 07:37:33,167 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-08-26 07:37:33,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 07:37:33,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:37:33,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 07:37:33,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 07:37:33,170 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 694 [2023-08-26 07:37:33,172 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 75 transitions, 174 flow. Second operand has 6 states, 6 states have (on average 338.0) internal successors, (2028), 6 states have internal predecessors, (2028), 0 states have call successors, (0), 0 states 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 07:37:33,172 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:37:33,172 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 694 [2023-08-26 07:37:33,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:37:36,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 07:37:37,289 INFO L124 PetriNetUnfolderBase]: 398/1274 cut-off events. [2023-08-26 07:37:37,289 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-26 07:37:37,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1973 conditions, 1274 events. 398/1274 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 7795 event pairs, 307 based on Foata normal form. 6/1173 useless extension candidates. Maximal degree in co-relation 1967. Up to 644 conditions per place. [2023-08-26 07:37:37,297 INFO L140 encePairwiseOnDemand]: 691/694 looper letters, 32 selfloop transitions, 5 changer transitions 0/78 dead transitions. [2023-08-26 07:37:37,297 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 78 transitions, 260 flow [2023-08-26 07:37:37,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 07:37:37,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 07:37:37,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2055 transitions. [2023-08-26 07:37:37,302 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4935158501440922 [2023-08-26 07:37:37,302 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2055 transitions. [2023-08-26 07:37:37,302 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2055 transitions. [2023-08-26 07:37:37,303 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:37:37,303 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2055 transitions. [2023-08-26 07:37:37,307 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 342.5) internal successors, (2055), 6 states have internal predecessors, (2055), 0 states have call successors, (0), 0 states 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 07:37:37,344 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 694.0) internal successors, (4858), 7 states have internal predecessors, (4858), 0 states have call successors, (0), 0 states 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 07:37:37,346 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 694.0) internal successors, (4858), 7 states have internal predecessors, (4858), 0 states have call successors, (0), 0 states 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 07:37:37,347 INFO L175 Difference]: Start difference. First operand has 78 places, 75 transitions, 174 flow. Second operand 6 states and 2055 transitions. [2023-08-26 07:37:37,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 78 transitions, 260 flow [2023-08-26 07:37:37,352 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 78 transitions, 256 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-26 07:37:37,353 INFO L231 Difference]: Finished difference. Result has 85 places, 78 transitions, 212 flow [2023-08-26 07:37:37,354 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=694, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=212, PETRI_PLACES=85, PETRI_TRANSITIONS=78} [2023-08-26 07:37:37,354 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -1 predicate places. [2023-08-26 07:37:37,355 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 78 transitions, 212 flow [2023-08-26 07:37:37,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 338.0) internal successors, (2028), 6 states have internal predecessors, (2028), 0 states have call successors, (0), 0 states 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 07:37:37,356 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:37:37,356 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:37:37,366 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-26 07:37:37,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 07:37:37,564 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-26 07:37:37,565 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:37:37,565 INFO L85 PathProgramCache]: Analyzing trace with hash -134545620, now seen corresponding path program 2 times [2023-08-26 07:37:37,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:37:37,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382216885] [2023-08-26 07:37:37,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:37:37,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:37:37,755 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-26 07:37:37,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [582003] [2023-08-26 07:37:37,755 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-26 07:37:37,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 07:37:37,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 07:37:37,757 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 07:37:37,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-26 07:37:38,300 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-26 07:37:38,300 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 07:37:38,303 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 17 conjunts are in the unsatisfiable core [2023-08-26 07:37:38,306 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 07:37:38,333 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-08-26 07:37:38,349 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2023-08-26 07:37:38,373 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 07:37:38,374 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2023-08-26 07:37:38,406 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 07:37:38,407 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2023-08-26 07:37:38,430 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-08-26 07:37:38,430 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-26 07:37:38,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:37:38,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382216885] [2023-08-26 07:37:38,430 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-26 07:37:38,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [582003] [2023-08-26 07:37:38,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [582003] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:37:38,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:37:38,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 07:37:38,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724998659] [2023-08-26 07:37:38,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:37:38,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 07:37:38,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:37:38,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 07:37:38,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 07:37:38,433 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 200 out of 694 [2023-08-26 07:37:38,435 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 78 transitions, 212 flow. Second operand has 6 states, 6 states have (on average 202.33333333333334) internal successors, (1214), 6 states have internal predecessors, (1214), 0 states have call successors, (0), 0 states 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 07:37:38,435 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:37:38,435 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 200 of 694 [2023-08-26 07:37:38,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:37:39,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 07:37:42,987 INFO L124 PetriNetUnfolderBase]: 4278/7067 cut-off events. [2023-08-26 07:37:42,988 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2023-08-26 07:37:43,000 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14217 conditions, 7067 events. 4278/7067 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 36749 event pairs, 2140 based on Foata normal form. 0/6041 useless extension candidates. Maximal degree in co-relation 14208. Up to 4975 conditions per place. [2023-08-26 07:37:43,026 INFO L140 encePairwiseOnDemand]: 682/694 looper letters, 208 selfloop transitions, 23 changer transitions 0/232 dead transitions. [2023-08-26 07:37:43,026 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 232 transitions, 990 flow [2023-08-26 07:37:43,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 07:37:43,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 07:37:43,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1427 transitions. [2023-08-26 07:37:43,031 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.34269932756964455 [2023-08-26 07:37:43,031 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1427 transitions. [2023-08-26 07:37:43,031 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1427 transitions. [2023-08-26 07:37:43,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:37:43,032 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1427 transitions. [2023-08-26 07:37:43,035 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 237.83333333333334) internal successors, (1427), 6 states have internal predecessors, (1427), 0 states have call successors, (0), 0 states 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 07:37:43,040 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 694.0) internal successors, (4858), 7 states have internal predecessors, (4858), 0 states have call successors, (0), 0 states 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 07:37:43,043 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 694.0) internal successors, (4858), 7 states have internal predecessors, (4858), 0 states have call successors, (0), 0 states 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 07:37:43,043 INFO L175 Difference]: Start difference. First operand has 85 places, 78 transitions, 212 flow. Second operand 6 states and 1427 transitions. [2023-08-26 07:37:43,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 232 transitions, 990 flow [2023-08-26 07:37:43,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 232 transitions, 976 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-08-26 07:37:43,049 INFO L231 Difference]: Finished difference. Result has 94 places, 100 transitions, 356 flow [2023-08-26 07:37:43,049 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=694, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=356, PETRI_PLACES=94, PETRI_TRANSITIONS=100} [2023-08-26 07:37:43,051 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 8 predicate places. [2023-08-26 07:37:43,051 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 100 transitions, 356 flow [2023-08-26 07:37:43,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 202.33333333333334) internal successors, (1214), 6 states have internal predecessors, (1214), 0 states have call successors, (0), 0 states 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 07:37:43,052 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:37:43,052 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:37:43,060 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-08-26 07:37:43,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 07:37:43,258 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-26 07:37:43,259 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:37:43,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1303402829, now seen corresponding path program 1 times [2023-08-26 07:37:43,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:37:43,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375457742] [2023-08-26 07:37:43,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:37:43,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:37:43,450 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-26 07:37:43,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1277976798] [2023-08-26 07:37:43,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:37:43,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 07:37:43,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 07:37:43,453 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 07:37:43,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-26 07:37:44,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:37:44,727 INFO L262 TraceCheckSpWp]: Trace formula consists of 3979 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-26 07:37:44,731 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 07:37:44,766 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:37:44,766 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 07:37:44,829 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:37:44,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:37:44,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375457742] [2023-08-26 07:37:44,829 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-26 07:37:44,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1277976798] [2023-08-26 07:37:44,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1277976798] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 07:37:44,829 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-08-26 07:37:44,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-08-26 07:37:44,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663504612] [2023-08-26 07:37:44,830 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-08-26 07:37:44,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-26 07:37:44,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:37:44,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-26 07:37:44,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-08-26 07:37:44,834 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 694 [2023-08-26 07:37:44,837 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 100 transitions, 356 flow. Second operand has 12 states, 12 states have (on average 337.6666666666667) internal successors, (4052), 12 states have internal predecessors, (4052), 0 states have call successors, (0), 0 states 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 07:37:44,837 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:37:44,837 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 694 [2023-08-26 07:37:44,837 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:37:46,987 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 07:37:49,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 07:37:50,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 07:37:54,419 INFO L124 PetriNetUnfolderBase]: 775/2284 cut-off events. [2023-08-26 07:37:54,419 INFO L125 PetriNetUnfolderBase]: For 349/381 co-relation queries the response was YES. [2023-08-26 07:37:54,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4114 conditions, 2284 events. 775/2284 cut-off events. For 349/381 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 15710 event pairs, 504 based on Foata normal form. 20/2171 useless extension candidates. Maximal degree in co-relation 4100. Up to 1127 conditions per place. [2023-08-26 07:37:54,434 INFO L140 encePairwiseOnDemand]: 691/694 looper letters, 34 selfloop transitions, 11 changer transitions 0/106 dead transitions. [2023-08-26 07:37:54,434 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 106 transitions, 482 flow [2023-08-26 07:37:54,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-26 07:37:54,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-26 07:37:54,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 4080 transitions. [2023-08-26 07:37:54,444 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4899135446685879 [2023-08-26 07:37:54,444 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 4080 transitions. [2023-08-26 07:37:54,444 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 4080 transitions. [2023-08-26 07:37:54,446 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:37:54,447 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 4080 transitions. [2023-08-26 07:37:54,453 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 340.0) internal successors, (4080), 12 states have internal predecessors, (4080), 0 states have call successors, (0), 0 states 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 07:37:54,463 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 694.0) internal successors, (9022), 13 states have internal predecessors, (9022), 0 states have call successors, (0), 0 states 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 07:37:54,465 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 694.0) internal successors, (9022), 13 states have internal predecessors, (9022), 0 states have call successors, (0), 0 states 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 07:37:54,465 INFO L175 Difference]: Start difference. First operand has 94 places, 100 transitions, 356 flow. Second operand 12 states and 4080 transitions. [2023-08-26 07:37:54,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 106 transitions, 482 flow [2023-08-26 07:37:54,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 106 transitions, 482 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 07:37:54,473 INFO L231 Difference]: Finished difference. Result has 111 places, 106 transitions, 452 flow [2023-08-26 07:37:54,473 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=694, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=452, PETRI_PLACES=111, PETRI_TRANSITIONS=106} [2023-08-26 07:37:54,475 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 25 predicate places. [2023-08-26 07:37:54,475 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 106 transitions, 452 flow [2023-08-26 07:37:54,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 337.6666666666667) internal successors, (4052), 12 states have internal predecessors, (4052), 0 states have call successors, (0), 0 states 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 07:37:54,477 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:37:54,477 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:37:54,492 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-26 07:37:54,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 07:37:54,692 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-26 07:37:54,692 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:37:54,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1078300851, now seen corresponding path program 2 times [2023-08-26 07:37:54,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:37:54,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592354809] [2023-08-26 07:37:54,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:37:54,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:37:55,158 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-26 07:37:55,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [636360756] [2023-08-26 07:37:55,159 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-26 07:37:55,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 07:37:55,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 07:37:55,160 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 07:37:55,162 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-26 07:37:56,473 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-26 07:37:56,473 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 07:37:56,478 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 17 conjunts are in the unsatisfiable core [2023-08-26 07:37:56,484 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 07:37:56,499 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-08-26 07:37:56,512 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2023-08-26 07:37:56,535 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 07:37:56,536 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2023-08-26 07:37:56,570 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 07:37:56,571 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2023-08-26 07:37:56,596 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-08-26 07:37:56,596 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-26 07:37:56,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:37:56,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592354809] [2023-08-26 07:37:56,596 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-26 07:37:56,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [636360756] [2023-08-26 07:37:56,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [636360756] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:37:56,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:37:56,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 07:37:56,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875923573] [2023-08-26 07:37:56,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:37:56,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 07:37:56,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:37:56,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 07:37:56,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 07:37:56,599 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 200 out of 694 [2023-08-26 07:37:56,612 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 106 transitions, 452 flow. Second operand has 6 states, 6 states have (on average 202.66666666666666) internal successors, (1216), 6 states have internal predecessors, (1216), 0 states have call successors, (0), 0 states 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 07:37:56,612 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:37:56,612 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 200 of 694 [2023-08-26 07:37:56,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:38:01,258 INFO L124 PetriNetUnfolderBase]: 6003/9860 cut-off events. [2023-08-26 07:38:01,258 INFO L125 PetriNetUnfolderBase]: For 2206/2206 co-relation queries the response was YES. [2023-08-26 07:38:01,276 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22241 conditions, 9860 events. 6003/9860 cut-off events. For 2206/2206 co-relation queries the response was YES. Maximal size of possible extension queue 189. Compared 54837 event pairs, 2841 based on Foata normal form. 0/8732 useless extension candidates. Maximal degree in co-relation 22220. Up to 7028 conditions per place. [2023-08-26 07:38:01,309 INFO L140 encePairwiseOnDemand]: 682/694 looper letters, 244 selfloop transitions, 31 changer transitions 0/276 dead transitions. [2023-08-26 07:38:01,309 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 276 transitions, 1528 flow [2023-08-26 07:38:01,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 07:38:01,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 07:38:01,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1415 transitions. [2023-08-26 07:38:01,314 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3398174831892411 [2023-08-26 07:38:01,314 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1415 transitions. [2023-08-26 07:38:01,314 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1415 transitions. [2023-08-26 07:38:01,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:38:01,315 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1415 transitions. [2023-08-26 07:38:01,318 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 235.83333333333334) internal successors, (1415), 6 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states 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 07:38:01,322 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 694.0) internal successors, (4858), 7 states have internal predecessors, (4858), 0 states have call successors, (0), 0 states 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 07:38:01,323 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 694.0) internal successors, (4858), 7 states have internal predecessors, (4858), 0 states have call successors, (0), 0 states 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 07:38:01,323 INFO L175 Difference]: Start difference. First operand has 111 places, 106 transitions, 452 flow. Second operand 6 states and 1415 transitions. [2023-08-26 07:38:01,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 276 transitions, 1528 flow [2023-08-26 07:38:01,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 276 transitions, 1480 flow, removed 19 selfloop flow, removed 5 redundant places. [2023-08-26 07:38:01,333 INFO L231 Difference]: Finished difference. Result has 116 places, 136 transitions, 662 flow [2023-08-26 07:38:01,333 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=694, PETRI_DIFFERENCE_MINUEND_FLOW=404, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=662, PETRI_PLACES=116, PETRI_TRANSITIONS=136} [2023-08-26 07:38:01,335 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 30 predicate places. [2023-08-26 07:38:01,335 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 136 transitions, 662 flow [2023-08-26 07:38:01,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 202.66666666666666) internal successors, (1216), 6 states have internal predecessors, (1216), 0 states have call successors, (0), 0 states 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 07:38:01,335 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:38:01,336 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:38:01,350 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-26 07:38:01,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 07:38:01,547 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting fErr1ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-26 07:38:01,548 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:38:01,548 INFO L85 PathProgramCache]: Analyzing trace with hash -404407002, now seen corresponding path program 1 times [2023-08-26 07:38:01,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:38:01,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985129334] [2023-08-26 07:38:01,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:38:01,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:38:01,940 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-26 07:38:01,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [891003805] [2023-08-26 07:38:01,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:38:01,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 07:38:01,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 07:38:01,945 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 07:38:02,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-08-26 07:38:04,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:38:04,755 INFO L262 TraceCheckSpWp]: Trace formula consists of 9646 conjuncts, 12 conjunts are in the unsatisfiable core [2023-08-26 07:38:04,761 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 07:38:04,854 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 1 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:38:04,855 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 07:38:05,039 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 1 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:38:05,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:38:05,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985129334] [2023-08-26 07:38:05,039 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-26 07:38:05,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [891003805] [2023-08-26 07:38:05,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [891003805] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 07:38:05,039 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-08-26 07:38:05,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2023-08-26 07:38:05,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318851719] [2023-08-26 07:38:05,040 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-08-26 07:38:05,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-08-26 07:38:05,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:38:05,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-08-26 07:38:05,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-08-26 07:38:05,045 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 694 [2023-08-26 07:38:05,050 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 136 transitions, 662 flow. Second operand has 24 states, 24 states have (on average 337.3333333333333) internal successors, (8096), 24 states have internal predecessors, (8096), 0 states have call successors, (0), 0 states 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 07:38:05,050 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:38:05,050 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 694 [2023-08-26 07:38:05,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:38:06,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 07:38:07,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 07:38:11,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 07:38:13,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 07:38:17,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 07:38:19,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 07:38:20,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 07:38:26,179 INFO L124 PetriNetUnfolderBase]: 1243/3540 cut-off events. [2023-08-26 07:38:26,179 INFO L125 PetriNetUnfolderBase]: For 2273/2363 co-relation queries the response was YES. [2023-08-26 07:38:26,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7245 conditions, 3540 events. 1243/3540 cut-off events. For 2273/2363 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 26693 event pairs, 742 based on Foata normal form. 52/3471 useless extension candidates. Maximal degree in co-relation 7220. Up to 1741 conditions per place. [2023-08-26 07:38:26,201 INFO L140 encePairwiseOnDemand]: 691/694 looper letters, 36 selfloop transitions, 23 changer transitions 0/148 dead transitions. [2023-08-26 07:38:26,201 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 148 transitions, 852 flow [2023-08-26 07:38:26,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-08-26 07:38:26,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-08-26 07:38:26,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 8130 transitions. [2023-08-26 07:38:26,219 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4881123919308357 [2023-08-26 07:38:26,219 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 8130 transitions. [2023-08-26 07:38:26,219 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 8130 transitions. [2023-08-26 07:38:26,223 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:38:26,223 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 8130 transitions. [2023-08-26 07:38:26,237 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 338.75) internal successors, (8130), 24 states have internal predecessors, (8130), 0 states have call successors, (0), 0 states 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 07:38:26,256 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 694.0) internal successors, (17350), 25 states have internal predecessors, (17350), 0 states have call successors, (0), 0 states 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 07:38:26,258 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 694.0) internal successors, (17350), 25 states have internal predecessors, (17350), 0 states have call successors, (0), 0 states 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 07:38:26,258 INFO L175 Difference]: Start difference. First operand has 116 places, 136 transitions, 662 flow. Second operand 24 states and 8130 transitions. [2023-08-26 07:38:26,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 148 transitions, 852 flow [2023-08-26 07:38:26,263 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 148 transitions, 852 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 07:38:26,266 INFO L231 Difference]: Finished difference. Result has 151 places, 148 transitions, 854 flow [2023-08-26 07:38:26,266 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=694, PETRI_DIFFERENCE_MINUEND_FLOW=662, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=854, PETRI_PLACES=151, PETRI_TRANSITIONS=148} [2023-08-26 07:38:26,267 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 65 predicate places. [2023-08-26 07:38:26,267 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 148 transitions, 854 flow [2023-08-26 07:38:26,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 337.3333333333333) internal successors, (8096), 24 states have internal predecessors, (8096), 0 states have call successors, (0), 0 states 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 07:38:26,269 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:38:26,269 INFO L208 CegarLoopForPetriNet]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:38:26,299 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-08-26 07:38:26,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 07:38:26,470 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting fErr1ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-26 07:38:26,470 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:38:26,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1679781594, now seen corresponding path program 2 times [2023-08-26 07:38:26,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:38:26,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697010893] [2023-08-26 07:38:26,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:38:26,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:38:27,279 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-26 07:38:27,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2028975028] [2023-08-26 07:38:27,279 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-26 07:38:27,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 07:38:27,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 07:38:27,286 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 07:38:27,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-08-26 07:38:30,559 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-26 07:38:30,559 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 07:38:30,570 INFO L262 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 17 conjunts are in the unsatisfiable core [2023-08-26 07:38:30,586 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 07:38:30,593 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-26 07:38:30,601 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-08-26 07:38:30,617 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 07:38:30,617 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2023-08-26 07:38:30,641 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 07:38:30,641 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2023-08-26 07:38:30,663 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2023-08-26 07:38:30,663 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-26 07:38:30,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:38:30,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697010893] [2023-08-26 07:38:30,664 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-26 07:38:30,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2028975028] [2023-08-26 07:38:30,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2028975028] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:38:30,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:38:30,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 07:38:30,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700245749] [2023-08-26 07:38:30,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:38:30,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 07:38:30,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:38:30,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 07:38:30,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 07:38:30,666 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 694 [2023-08-26 07:38:30,667 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 148 transitions, 854 flow. Second operand has 6 states, 6 states have (on average 219.33333333333334) internal successors, (1316), 6 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states 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 07:38:30,667 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:38:30,667 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 694 [2023-08-26 07:38:30,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:38:32,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 07:38:33,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 07:38:34,903 INFO L124 PetriNetUnfolderBase]: 6691/10972 cut-off events. [2023-08-26 07:38:34,904 INFO L125 PetriNetUnfolderBase]: For 5288/5288 co-relation queries the response was YES. [2023-08-26 07:38:34,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27328 conditions, 10972 events. 6691/10972 cut-off events. For 5288/5288 co-relation queries the response was YES. Maximal size of possible extension queue 197. Compared 61474 event pairs, 3394 based on Foata normal form. 0/10136 useless extension candidates. Maximal degree in co-relation 27290. Up to 8281 conditions per place. [2023-08-26 07:38:34,971 INFO L140 encePairwiseOnDemand]: 683/694 looper letters, 287 selfloop transitions, 55 changer transitions 0/342 dead transitions. [2023-08-26 07:38:34,972 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 342 transitions, 2274 flow [2023-08-26 07:38:34,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 07:38:34,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 07:38:34,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1516 transitions. [2023-08-26 07:38:34,976 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36407300672430354 [2023-08-26 07:38:34,976 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1516 transitions. [2023-08-26 07:38:34,976 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1516 transitions. [2023-08-26 07:38:34,977 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:38:34,977 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1516 transitions. [2023-08-26 07:38:34,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 252.66666666666666) internal successors, (1516), 6 states have internal predecessors, (1516), 0 states have call successors, (0), 0 states 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 07:38:34,983 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 694.0) internal successors, (4858), 7 states have internal predecessors, (4858), 0 states have call successors, (0), 0 states 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 07:38:34,984 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 694.0) internal successors, (4858), 7 states have internal predecessors, (4858), 0 states have call successors, (0), 0 states 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 07:38:34,984 INFO L175 Difference]: Start difference. First operand has 151 places, 148 transitions, 854 flow. Second operand 6 states and 1516 transitions. [2023-08-26 07:38:34,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 342 transitions, 2274 flow [2023-08-26 07:38:34,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 342 transitions, 2178 flow, removed 37 selfloop flow, removed 11 redundant places. [2023-08-26 07:38:35,000 INFO L231 Difference]: Finished difference. Result has 150 places, 197 transitions, 1312 flow [2023-08-26 07:38:35,000 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=694, PETRI_DIFFERENCE_MINUEND_FLOW=758, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1312, PETRI_PLACES=150, PETRI_TRANSITIONS=197} [2023-08-26 07:38:35,001 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 64 predicate places. [2023-08-26 07:38:35,001 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 197 transitions, 1312 flow [2023-08-26 07:38:35,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 219.33333333333334) internal successors, (1316), 6 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states 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 07:38:35,001 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:38:35,002 INFO L208 CegarLoopForPetriNet]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:38:35,018 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-08-26 07:38:35,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 07:38:35,217 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting fErr1ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-26 07:38:35,218 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:38:35,218 INFO L85 PathProgramCache]: Analyzing trace with hash -883879008, now seen corresponding path program 1 times [2023-08-26 07:38:35,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:38:35,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624381883] [2023-08-26 07:38:35,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:38:35,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:38:36,191 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-26 07:38:36,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [975320813] [2023-08-26 07:38:36,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:38:36,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 07:38:36,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 07:38:36,193 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 07:38:36,198 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-08-26 07:38:42,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:38:42,875 INFO L262 TraceCheckSpWp]: Trace formula consists of 20988 conjuncts, 24 conjunts are in the unsatisfiable core [2023-08-26 07:38:42,885 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 07:38:43,161 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 1 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:38:43,161 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 07:38:43,577 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 1 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:38:43,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:38:43,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624381883] [2023-08-26 07:38:43,578 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-26 07:38:43,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [975320813] [2023-08-26 07:38:43,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [975320813] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 07:38:43,578 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-08-26 07:38:43,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 32 [2023-08-26 07:38:43,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679666268] [2023-08-26 07:38:43,578 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-08-26 07:38:43,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-08-26 07:38:43,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:38:43,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-08-26 07:38:43,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2023-08-26 07:38:43,585 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 694 [2023-08-26 07:38:43,591 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 197 transitions, 1312 flow. Second operand has 32 states, 32 states have (on average 337.34375) internal successors, (10795), 32 states have internal predecessors, (10795), 0 states have call successors, (0), 0 states 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 07:38:43,591 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:38:43,591 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 694 [2023-08-26 07:38:43,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:38:44,695 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 07:38:48,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 07:38:52,144 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 07:38:53,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 07:38:55,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 07:38:58,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 07:39:00,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 07:39:01,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 07:39:04,354 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 07:39:05,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 07:39:07,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 07:39:11,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 07:39:14,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 07:39:15,666 INFO L124 PetriNetUnfolderBase]: 1569/4312 cut-off events. [2023-08-26 07:39:15,666 INFO L125 PetriNetUnfolderBase]: For 7273/7405 co-relation queries the response was YES. [2023-08-26 07:39:15,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10310 conditions, 4312 events. 1569/4312 cut-off events. For 7273/7405 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 32686 event pairs, 862 based on Foata normal form. 60/4237 useless extension candidates. Maximal degree in co-relation 10268. Up to 2091 conditions per place. [2023-08-26 07:39:15,689 INFO L140 encePairwiseOnDemand]: 691/694 looper letters, 37 selfloop transitions, 31 changer transitions 0/205 dead transitions. [2023-08-26 07:39:15,689 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 205 transitions, 1496 flow [2023-08-26 07:39:15,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-08-26 07:39:15,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2023-08-26 07:39:15,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 10822 transitions. [2023-08-26 07:39:15,708 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48730187319884727 [2023-08-26 07:39:15,708 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 10822 transitions. [2023-08-26 07:39:15,708 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 10822 transitions. [2023-08-26 07:39:15,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:39:15,713 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 10822 transitions. [2023-08-26 07:39:15,727 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 338.1875) internal successors, (10822), 32 states have internal predecessors, (10822), 0 states have call successors, (0), 0 states 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 07:39:15,745 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 694.0) internal successors, (22902), 33 states have internal predecessors, (22902), 0 states have call successors, (0), 0 states 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 07:39:15,747 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 694.0) internal successors, (22902), 33 states have internal predecessors, (22902), 0 states have call successors, (0), 0 states 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 07:39:15,747 INFO L175 Difference]: Start difference. First operand has 150 places, 197 transitions, 1312 flow. Second operand 32 states and 10822 transitions. [2023-08-26 07:39:15,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 205 transitions, 1496 flow [2023-08-26 07:39:15,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 205 transitions, 1496 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 07:39:15,763 INFO L231 Difference]: Finished difference. Result has 189 places, 205 transitions, 1472 flow [2023-08-26 07:39:15,763 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=694, PETRI_DIFFERENCE_MINUEND_FLOW=1312, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=1472, PETRI_PLACES=189, PETRI_TRANSITIONS=205} [2023-08-26 07:39:15,763 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 103 predicate places. [2023-08-26 07:39:15,763 INFO L495 AbstractCegarLoop]: Abstraction has has 189 places, 205 transitions, 1472 flow [2023-08-26 07:39:15,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 337.34375) internal successors, (10795), 32 states have internal predecessors, (10795), 0 states have call successors, (0), 0 states 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 07:39:15,765 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:39:15,765 INFO L208 CegarLoopForPetriNet]: trace histogram [30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:39:15,834 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-08-26 07:39:15,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 07:39:15,981 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting fErr1ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-26 07:39:15,981 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:39:15,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1496364128, now seen corresponding path program 2 times [2023-08-26 07:39:15,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:39:15,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760101709] [2023-08-26 07:39:15,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:39:15,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:39:17,124 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-26 07:39:17,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1498698161] [2023-08-26 07:39:17,125 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-26 07:39:17,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 07:39:17,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 07:39:17,129 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 07:39:17,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-08-26 07:39:22,551 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-26 07:39:22,551 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 07:39:22,564 INFO L262 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 17 conjunts are in the unsatisfiable core [2023-08-26 07:39:22,570 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 07:39:22,578 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-26 07:39:22,588 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-08-26 07:39:22,606 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 07:39:22,606 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2023-08-26 07:39:22,634 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 07:39:22,635 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2023-08-26 07:39:22,656 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 466 trivial. 0 not checked. [2023-08-26 07:39:22,656 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-26 07:39:22,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:39:22,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760101709] [2023-08-26 07:39:22,656 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-26 07:39:22,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1498698161] [2023-08-26 07:39:22,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1498698161] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:39:22,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:39:22,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 07:39:22,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853731945] [2023-08-26 07:39:22,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:39:22,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 07:39:22,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:39:22,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 07:39:22,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 07:39:22,659 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 694 [2023-08-26 07:39:22,659 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 205 transitions, 1472 flow. Second operand has 6 states, 6 states have (on average 219.66666666666666) internal successors, (1318), 6 states have internal predecessors, (1318), 0 states have call successors, (0), 0 states 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 07:39:22,659 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:39:22,659 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 694 [2023-08-26 07:39:22,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:39:24,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 07:39:26,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 07:39:28,116 INFO L124 PetriNetUnfolderBase]: 7020/11577 cut-off events. [2023-08-26 07:39:28,116 INFO L125 PetriNetUnfolderBase]: For 10458/10458 co-relation queries the response was YES. [2023-08-26 07:39:28,158 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32159 conditions, 11577 events. 7020/11577 cut-off events. For 10458/10458 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 65856 event pairs, 3355 based on Foata normal form. 0/10917 useless extension candidates. Maximal degree in co-relation 32108. Up to 8672 conditions per place. [2023-08-26 07:39:28,317 INFO L140 encePairwiseOnDemand]: 683/694 looper letters, 339 selfloop transitions, 79 changer transitions 0/419 dead transitions. [2023-08-26 07:39:28,317 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 419 transitions, 3392 flow [2023-08-26 07:39:28,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 07:39:28,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 07:39:28,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1503 transitions. [2023-08-26 07:39:28,322 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36095100864553314 [2023-08-26 07:39:28,322 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1503 transitions. [2023-08-26 07:39:28,322 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1503 transitions. [2023-08-26 07:39:28,323 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:39:28,323 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1503 transitions. [2023-08-26 07:39:28,325 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 250.5) internal successors, (1503), 6 states have internal predecessors, (1503), 0 states have call successors, (0), 0 states 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 07:39:28,330 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 694.0) internal successors, (4858), 7 states have internal predecessors, (4858), 0 states have call successors, (0), 0 states 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 07:39:28,330 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 694.0) internal successors, (4858), 7 states have internal predecessors, (4858), 0 states have call successors, (0), 0 states 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 07:39:28,331 INFO L175 Difference]: Start difference. First operand has 189 places, 205 transitions, 1472 flow. Second operand 6 states and 1503 transitions. [2023-08-26 07:39:28,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 419 transitions, 3392 flow [2023-08-26 07:39:28,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 419 transitions, 3296 flow, removed 25 selfloop flow, removed 23 redundant places. [2023-08-26 07:39:28,367 INFO L231 Difference]: Finished difference. Result has 176 places, 270 transitions, 2274 flow [2023-08-26 07:39:28,367 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=694, PETRI_DIFFERENCE_MINUEND_FLOW=1376, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2274, PETRI_PLACES=176, PETRI_TRANSITIONS=270} [2023-08-26 07:39:28,368 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 90 predicate places. [2023-08-26 07:39:28,368 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 270 transitions, 2274 flow [2023-08-26 07:39:28,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 219.66666666666666) internal successors, (1318), 6 states have internal predecessors, (1318), 0 states have call successors, (0), 0 states 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 07:39:28,369 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:39:28,369 INFO L208 CegarLoopForPetriNet]: trace histogram [30, 1, 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 07:39:28,399 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-08-26 07:39:28,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-08-26 07:39:28,584 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting fErr2ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-26 07:39:28,584 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:39:28,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1713099943, now seen corresponding path program 1 times [2023-08-26 07:39:28,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:39:28,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016572189] [2023-08-26 07:39:28,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:39:28,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:39:29,774 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-26 07:39:29,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1261565473] [2023-08-26 07:39:29,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:39:29,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 07:39:29,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 07:39:29,776 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 07:39:29,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-08-26 07:39:39,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:39:39,768 INFO L262 TraceCheckSpWp]: Trace formula consists of 28544 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-26 07:39:39,786 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 07:39:39,863 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2023-08-26 07:39:39,863 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 07:39:40,000 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2023-08-26 07:39:40,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:39:40,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016572189] [2023-08-26 07:39:40,000 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-26 07:39:40,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1261565473] [2023-08-26 07:39:40,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1261565473] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 07:39:40,001 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-08-26 07:39:40,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-08-26 07:39:40,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113428190] [2023-08-26 07:39:40,001 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-08-26 07:39:40,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 07:39:40,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:39:40,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 07:39:40,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 07:39:40,005 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 333 out of 694 [2023-08-26 07:39:40,006 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 270 transitions, 2274 flow. Second operand has 6 states, 6 states have (on average 336.0) internal successors, (2016), 6 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states 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 07:39:40,006 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:39:40,006 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 333 of 694 [2023-08-26 07:39:40,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:39:42,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 07:39:44,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 07:39:47,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 07:39:49,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 07:39:51,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 07:39:52,130 INFO L124 PetriNetUnfolderBase]: 1929/5095 cut-off events. [2023-08-26 07:39:52,130 INFO L125 PetriNetUnfolderBase]: For 9039/9203 co-relation queries the response was YES. [2023-08-26 07:39:52,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14440 conditions, 5095 events. 1929/5095 cut-off events. For 9039/9203 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 37889 event pairs, 974 based on Foata normal form. 55/4999 useless extension candidates. Maximal degree in co-relation 14385. Up to 2411 conditions per place. [2023-08-26 07:39:52,168 INFO L140 encePairwiseOnDemand]: 690/694 looper letters, 162 selfloop transitions, 6 changer transitions 0/369 dead transitions. [2023-08-26 07:39:52,168 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 369 transitions, 3133 flow [2023-08-26 07:39:52,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 07:39:52,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 07:39:52,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2043 transitions. [2023-08-26 07:39:52,170 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49063400576368876 [2023-08-26 07:39:52,170 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2043 transitions. [2023-08-26 07:39:52,170 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2043 transitions. [2023-08-26 07:39:52,171 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:39:52,171 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2043 transitions. [2023-08-26 07:39:52,173 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 340.5) internal successors, (2043), 6 states have internal predecessors, (2043), 0 states have call successors, (0), 0 states 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 07:39:52,176 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 694.0) internal successors, (4858), 7 states have internal predecessors, (4858), 0 states have call successors, (0), 0 states 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 07:39:52,176 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 694.0) internal successors, (4858), 7 states have internal predecessors, (4858), 0 states have call successors, (0), 0 states 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 07:39:52,177 INFO L175 Difference]: Start difference. First operand has 176 places, 270 transitions, 2274 flow. Second operand 6 states and 2043 transitions. [2023-08-26 07:39:52,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 369 transitions, 3133 flow [2023-08-26 07:39:52,207 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 369 transitions, 3133 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 07:39:52,211 INFO L231 Difference]: Finished difference. Result has 185 places, 273 transitions, 2437 flow [2023-08-26 07:39:52,211 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=694, PETRI_DIFFERENCE_MINUEND_FLOW=2274, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=270, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=266, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2437, PETRI_PLACES=185, PETRI_TRANSITIONS=273} [2023-08-26 07:39:52,212 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 99 predicate places. [2023-08-26 07:39:52,212 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 273 transitions, 2437 flow [2023-08-26 07:39:52,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 336.0) internal successors, (2016), 6 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states 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 07:39:52,212 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:39:52,213 INFO L208 CegarLoopForPetriNet]: trace histogram [120, 4, 4, 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 07:39:52,314 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-08-26 07:39:52,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 07:39:52,427 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting fErr2ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-26 07:39:52,427 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:39:52,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1304517035, now seen corresponding path program 2 times [2023-08-26 07:39:52,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:39:52,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918916959] [2023-08-26 07:39:52,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:39:52,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:39:56,833 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-26 07:39:56,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1779715667] [2023-08-26 07:39:56,834 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-26 07:39:56,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 07:39:56,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 07:39:56,835 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 07:39:56,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-08-26 07:40:12,033 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-26 07:40:12,034 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 07:40:12,082 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 17 conjunts are in the unsatisfiable core [2023-08-26 07:40:12,094 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 07:40:12,107 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-26 07:40:12,115 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-08-26 07:40:12,129 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 07:40:12,129 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2023-08-26 07:40:12,148 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 07:40:12,148 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2023-08-26 07:40:12,168 INFO L134 CoverageAnalysis]: Checked inductivity of 7636 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7636 trivial. 0 not checked. [2023-08-26 07:40:12,168 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-26 07:40:12,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:40:12,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918916959] [2023-08-26 07:40:12,169 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-26 07:40:12,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1779715667] [2023-08-26 07:40:12,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1779715667] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:40:12,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:40:12,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 07:40:12,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607737226] [2023-08-26 07:40:12,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:40:12,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 07:40:12,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:40:12,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 07:40:12,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 07:40:12,171 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 214 out of 694 [2023-08-26 07:40:12,172 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 273 transitions, 2437 flow. Second operand has 6 states, 6 states have (on average 218.33333333333334) internal successors, (1310), 6 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states 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 07:40:12,172 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:40:12,172 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 214 of 694 [2023-08-26 07:40:12,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:40:13,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-26 07:40:17,555 INFO L124 PetriNetUnfolderBase]: 7582/12512 cut-off events. [2023-08-26 07:40:17,555 INFO L125 PetriNetUnfolderBase]: For 17289/17289 co-relation queries the response was YES. [2023-08-26 07:40:17,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38240 conditions, 12512 events. 7582/12512 cut-off events. For 17289/17289 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 71130 event pairs, 4611 based on Foata normal form. 0/11898 useless extension candidates. Maximal degree in co-relation 38181. Up to 11725 conditions per place. [2023-08-26 07:40:17,629 INFO L140 encePairwiseOnDemand]: 672/694 looper letters, 314 selfloop transitions, 117 changer transitions 0/431 dead transitions. [2023-08-26 07:40:17,629 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 431 transitions, 3943 flow [2023-08-26 07:40:17,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 07:40:17,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 07:40:17,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1502 transitions. [2023-08-26 07:40:17,631 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3607108549471662 [2023-08-26 07:40:17,631 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1502 transitions. [2023-08-26 07:40:17,631 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1502 transitions. [2023-08-26 07:40:17,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:40:17,632 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1502 transitions. [2023-08-26 07:40:17,633 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 250.33333333333334) internal successors, (1502), 6 states have internal predecessors, (1502), 0 states have call successors, (0), 0 states 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 07:40:17,636 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 694.0) internal successors, (4858), 7 states have internal predecessors, (4858), 0 states have call successors, (0), 0 states 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 07:40:17,636 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 694.0) internal successors, (4858), 7 states have internal predecessors, (4858), 0 states have call successors, (0), 0 states 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 07:40:17,636 INFO L175 Difference]: Start difference. First operand has 185 places, 273 transitions, 2437 flow. Second operand 6 states and 1502 transitions. [2023-08-26 07:40:17,637 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 431 transitions, 3943 flow [2023-08-26 07:40:17,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 431 transitions, 3935 flow, removed 3 selfloop flow, removed 1 redundant places. [2023-08-26 07:40:17,693 INFO L231 Difference]: Finished difference. Result has 193 places, 351 transitions, 3249 flow [2023-08-26 07:40:17,693 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=694, PETRI_DIFFERENCE_MINUEND_FLOW=2429, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3249, PETRI_PLACES=193, PETRI_TRANSITIONS=351} [2023-08-26 07:40:17,694 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, 107 predicate places. [2023-08-26 07:40:17,694 INFO L495 AbstractCegarLoop]: Abstraction has has 193 places, 351 transitions, 3249 flow [2023-08-26 07:40:17,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 218.33333333333334) internal successors, (1310), 6 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states 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 07:40:17,694 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:40:17,694 INFO L208 CegarLoopForPetriNet]: trace histogram [120, 4, 4, 1, 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 07:40:17,754 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-08-26 07:40:17,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-08-26 07:40:17,917 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting fErr2ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-26 07:40:17,917 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:40:17,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1206423651, now seen corresponding path program 1 times [2023-08-26 07:40:17,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:40:17,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531962961] [2023-08-26 07:40:17,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:40:17,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:40:22,885 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-26 07:40:22,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [393995224] [2023-08-26 07:40:22,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:40:22,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 07:40:22,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 07:40:22,899 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 07:40:22,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process Received shutdown request... [2023-08-26 07:40:51,879 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-26 07:40:51,887 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-26 07:40:52,890 ERROR L246 FreeRefinementEngine]: Caught known exception: Timeout or Toolchain cancelled by user [2023-08-26 07:40:52,916 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location fErr2ASSERT_VIOLATIONDATA_RACE (25 of 26 remaining) [2023-08-26 07:40:53,079 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2023-08-26 07:40:53,090 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forcibly destroying the process [2023-08-26 07:40:53,117 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forcibly destroying the process [2023-08-26 07:40:53,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-08-26 07:40:53,117 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 154 with TraceHistMax 120,while AutomatonFreeRefinementEngine was Timeout during CAMEL. [2023-08-26 07:40:53,119 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location fErr0ASSERT_VIOLATIONDATA_RACE (24 of 26 remaining) [2023-08-26 07:40:53,119 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location fErr1ASSERT_VIOLATIONDATA_RACE (23 of 26 remaining) [2023-08-26 07:40:53,119 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location fErr2ASSERT_VIOLATIONDATA_RACE (22 of 26 remaining) [2023-08-26 07:40:53,119 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location fErr3ASSERT_VIOLATIONDATA_RACE (21 of 26 remaining) [2023-08-26 07:40:53,119 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (20 of 26 remaining) [2023-08-26 07:40:53,119 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (19 of 26 remaining) [2023-08-26 07:40:53,119 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (18 of 26 remaining) [2023-08-26 07:40:53,120 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (17 of 26 remaining) [2023-08-26 07:40:53,120 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 26 remaining) [2023-08-26 07:40:53,120 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 26 remaining) [2023-08-26 07:40:53,120 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (14 of 26 remaining) [2023-08-26 07:40:53,120 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (13 of 26 remaining) [2023-08-26 07:40:53,120 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (12 of 26 remaining) [2023-08-26 07:40:53,120 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (11 of 26 remaining) [2023-08-26 07:40:53,120 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (10 of 26 remaining) [2023-08-26 07:40:53,120 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (9 of 26 remaining) [2023-08-26 07:40:53,120 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 26 remaining) [2023-08-26 07:40:53,120 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 26 remaining) [2023-08-26 07:40:53,120 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location fErr0ASSERT_VIOLATIONDATA_RACE (6 of 26 remaining) [2023-08-26 07:40:53,121 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location fErr1ASSERT_VIOLATIONDATA_RACE (5 of 26 remaining) [2023-08-26 07:40:53,121 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location fErr3ASSERT_VIOLATIONDATA_RACE (4 of 26 remaining) [2023-08-26 07:40:53,121 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location fErr0ASSERT_VIOLATIONDATA_RACE (3 of 26 remaining) [2023-08-26 07:40:53,121 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location fErr1ASSERT_VIOLATIONDATA_RACE (2 of 26 remaining) [2023-08-26 07:40:53,121 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location fErr2ASSERT_VIOLATIONDATA_RACE (1 of 26 remaining) [2023-08-26 07:40:53,121 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location fErr3ASSERT_VIOLATIONDATA_RACE (0 of 26 remaining) [2023-08-26 07:40:53,121 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-08-26 07:40:53,125 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 07:40:53,125 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 07:40:53,127 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 07:40:53 BasicIcfg [2023-08-26 07:40:53,127 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 07:40:53,127 INFO L158 Benchmark]: Toolchain (without parser) took 841523.73ms. Allocated memory was 348.1MB in the beginning and 9.0GB in the end (delta: 8.6GB). Free memory was 323.2MB in the beginning and 7.1GB in the end (delta: -6.8GB). Peak memory consumption was 2.1GB. Max. memory is 16.0GB. [2023-08-26 07:40:53,127 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 348.1MB. Free memory was 326.3MB in the beginning and 326.1MB in the end (delta: 193.8kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 07:40:53,128 INFO L158 Benchmark]: CACSL2BoogieTranslator took 632.53ms. Allocated memory is still 348.1MB. Free memory was 322.8MB in the beginning and 292.1MB in the end (delta: 30.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.0GB. [2023-08-26 07:40:53,128 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.80ms. Allocated memory is still 348.1MB. Free memory was 292.1MB in the beginning and 288.0MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-26 07:40:53,128 INFO L158 Benchmark]: Boogie Preprocessor took 39.64ms. Allocated memory is still 348.1MB. Free memory was 288.0MB in the beginning and 284.2MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-26 07:40:53,128 INFO L158 Benchmark]: RCFGBuilder took 672.91ms. Allocated memory is still 348.1MB. Free memory was 284.2MB in the beginning and 308.2MB in the end (delta: -24.0MB). Peak memory consumption was 26.7MB. Max. memory is 16.0GB. [2023-08-26 07:40:53,142 INFO L158 Benchmark]: TraceAbstraction took 840106.42ms. Allocated memory was 348.1MB in the beginning and 9.0GB in the end (delta: 8.6GB). Free memory was 307.3MB in the beginning and 7.1GB in the end (delta: -6.8GB). Peak memory consumption was 2.1GB. Max. memory is 16.0GB. [2023-08-26 07:40:53,153 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks [2023-08-26 07:40:53,160 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 137 [2023-08-26 07:40:53,163 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 137 Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 348.1MB. Free memory was 326.3MB in the beginning and 326.1MB in the end (delta: 193.8kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 632.53ms. Allocated memory is still 348.1MB. Free memory was 322.8MB in the beginning and 292.1MB in the end (delta: 30.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 67.80ms. Allocated memory is still 348.1MB. Free memory was 292.1MB in the beginning and 288.0MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 39.64ms. Allocated memory is still 348.1MB. Free memory was 288.0MB in the beginning and 284.2MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * RCFGBuilder took 672.91ms. Allocated memory is still 348.1MB. Free memory was 284.2MB in the beginning and 308.2MB in the end (delta: -24.0MB). Peak memory consumption was 26.7MB. Max. memory is 16.0GB. * TraceAbstraction took 840106.42ms. Allocated memory was 348.1MB in the beginning and 9.0GB in the end (delta: 8.6GB). Free memory was 307.3MB in the beginning and 7.1GB in the end (delta: -6.8GB). Peak memory consumption was 2.1GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 249]: Unsoundness Warning unspecified type, defaulting to int C: short [249] - GenericResultAtLocation [Line: 249]: Unsoundness Warning unspecified type, defaulting to int C: short [249] - GenericResultAtLocation [Line: 1071]: Unsoundness Warning unspecified type, defaulting to int C: long [1071] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 632.3s, 344 PlacesBefore, 86 PlacesAfterwards, 354 TransitionsBefore, 85 TransitionsAfterwards, 12194 CoEnabledTransitionPairs, 8 FixpointIterations, 224 TrivialSequentialCompositions, 75 ConcurrentSequentialCompositions, 13 TrivialYvCompositions, 15 ConcurrentYvCompositions, 11 ChoiceCompositions, 338 TotalNumberOfCompositions, 46922 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 14670, independent: 13709, independent conditional: 0, independent unconditional: 13709, dependent: 961, dependent conditional: 0, dependent unconditional: 961, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 6036, independent: 5883, independent conditional: 0, independent unconditional: 5883, dependent: 153, dependent conditional: 0, dependent unconditional: 153, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 14670, independent: 7826, independent conditional: 0, independent unconditional: 7826, dependent: 808, dependent conditional: 0, dependent unconditional: 808, unknown: 6036, unknown conditional: 0, unknown unconditional: 6036] , Statistics on independence cache: Total cache size (in pairs): 554, Positive cache size: 453, Positive conditional cache size: 0, Positive unconditional cache size: 453, Negative cache size: 101, Negative conditional cache size: 0, Negative unconditional cache size: 101, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 1047]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was analyzing trace of length 154 with TraceHistMax 120,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1044]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was analyzing trace of length 154 with TraceHistMax 120,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1047]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was analyzing trace of length 154 with TraceHistMax 120,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1048]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was analyzing trace of length 154 with TraceHistMax 120,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1006]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was analyzing trace of length 154 with TraceHistMax 120,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1007]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was analyzing trace of length 154 with TraceHistMax 120,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1026]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was analyzing trace of length 154 with TraceHistMax 120,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1033]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was analyzing trace of length 154 with TraceHistMax 120,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1011]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was analyzing trace of length 154 with TraceHistMax 120,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1006]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was analyzing trace of length 154 with TraceHistMax 120,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1007]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was analyzing trace of length 154 with TraceHistMax 120,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1016]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was analyzing trace of length 154 with TraceHistMax 120,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1017]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was analyzing trace of length 154 with TraceHistMax 120,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1018]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was analyzing trace of length 154 with TraceHistMax 120,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1019]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was analyzing trace of length 154 with TraceHistMax 120,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1020]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was analyzing trace of length 154 with TraceHistMax 120,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1069]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 154 with TraceHistMax 120,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 1070]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 154 with TraceHistMax 120,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 405 locations, 26 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: 840.0s, OverallIterations: 14, TraceHistogramMax: 120, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 110.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 632.5s, HoareTripleCheckerStatistics: 6 mSolverCounterUnknown, 380 SdHoareTripleChecker+Valid, 100.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 380 mSDsluCounter, 171 SdHoareTripleChecker+Invalid, 99.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 211 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3340 IncrementalHoareTripleChecker+Invalid, 3557 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 211 mSolverCounterUnsat, 171 mSDtfsCounter, 3340 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 596 GetRequests, 488 SyntacticMatches, 16 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3249occurred in iteration=13, InterpolantAutomatonStates: 118, 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: 9.0s SsaConstructionTime, 8.0s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 471 NumberOfCodeBlocks, 269 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 613 ConstructedInterpolants, 0 QuantifiedInterpolants, 1386 SizeOfPredicates, 1 NumberOfNonLiveVariables, 65101 ConjunctsInSsa, 133 ConjunctsInUnsatCore, 18 InterpolantComputations, 8 PerfectInterpolantSequences, 9362/10002 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 could not prove your program: Timeout Completed graceful shutdown