/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 -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_21-arrayloop2_nr.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 03:41:56,518 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 03:41:56,564 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-25 03:41:56,568 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 03:41:56,569 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 03:41:56,587 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 03:41:56,588 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 03:41:56,589 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 03:41:56,589 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 03:41:56,589 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 03:41:56,590 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 03:41:56,590 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 03:41:56,590 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 03:41:56,591 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 03:41:56,591 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 03:41:56,596 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 03:41:56,596 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 03:41:56,596 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 03:41:56,597 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 03:41:56,597 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 03:41:56,597 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 03:41:56,600 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 03:41:56,600 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 03:41:56,601 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 03:41:56,601 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 03:41:56,601 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 03:41:56,602 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 03:41:56,602 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 03:41:56,602 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 03:41:56,602 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 03:41:56,603 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 03:41:56,603 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 03:41:56,603 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 03:41:56,604 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 03:41:56,604 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 03:41:56,604 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 03:41:56,931 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 03:41:56,948 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 03:41:56,949 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 03:41:56,950 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 03:41:56,952 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 03:41:56,954 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/09-regions_21-arrayloop2_nr.i [2023-08-25 03:41:58,217 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 03:41:58,519 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 03:41:58,520 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/09-regions_21-arrayloop2_nr.i [2023-08-25 03:41:58,540 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f4fc1c4c/381b95d94446417b9ae1ee97565c73fa/FLAG7b60c17ca [2023-08-25 03:41:58,555 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f4fc1c4c/381b95d94446417b9ae1ee97565c73fa [2023-08-25 03:41:58,561 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 03:41:58,564 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 03:41:58,566 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 03:41:58,566 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 03:41:58,568 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 03:41:58,570 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 03:41:58" (1/1) ... [2023-08-25 03:41:58,571 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5301be8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:41:58, skipping insertion in model container [2023-08-25 03:41:58,571 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 03:41:58" (1/1) ... [2023-08-25 03:41:58,626 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 03:41:59,072 WARN L1561 CHandler]: Possible shadowing of function new [2023-08-25 03:41:59,073 WARN L1561 CHandler]: Possible shadowing of function new [2023-08-25 03:41:59,073 WARN L1561 CHandler]: Possible shadowing of function new [2023-08-25 03:41:59,074 WARN L1561 CHandler]: Possible shadowing of function new [2023-08-25 03:41:59,089 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 03:41:59,116 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 03:41:59,144 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [249] [2023-08-25 03:41:59,151 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [249] [2023-08-25 03:41:59,167 WARN L1561 CHandler]: Possible shadowing of function new [2023-08-25 03:41:59,168 WARN L1561 CHandler]: Possible shadowing of function new [2023-08-25 03:41:59,170 WARN L1561 CHandler]: Possible shadowing of function new [2023-08-25 03:41:59,173 WARN L1561 CHandler]: Possible shadowing of function new [2023-08-25 03:41:59,197 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 03:41:59,261 INFO L206 MainTranslator]: Completed translation [2023-08-25 03:41:59,263 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:41:59 WrapperNode [2023-08-25 03:41:59,263 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 03:41:59,264 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 03:41:59,264 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 03:41:59,264 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 03:41:59,270 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:41:59" (1/1) ... [2023-08-25 03:41:59,304 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:41:59" (1/1) ... [2023-08-25 03:41:59,336 INFO L138 Inliner]: procedures = 271, calls = 32, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 210 [2023-08-25 03:41:59,337 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 03:41:59,338 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 03:41:59,338 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 03:41:59,338 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 03:41:59,346 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:41:59" (1/1) ... [2023-08-25 03:41:59,346 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:41:59" (1/1) ... [2023-08-25 03:41:59,350 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:41:59" (1/1) ... [2023-08-25 03:41:59,350 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:41:59" (1/1) ... [2023-08-25 03:41:59,365 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:41:59" (1/1) ... [2023-08-25 03:41:59,369 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:41:59" (1/1) ... [2023-08-25 03:41:59,371 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:41:59" (1/1) ... [2023-08-25 03:41:59,372 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:41:59" (1/1) ... [2023-08-25 03:41:59,376 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 03:41:59,376 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 03:41:59,377 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 03:41:59,377 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 03:41:59,377 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:41:59" (1/1) ... [2023-08-25 03:41:59,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 03:41:59,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 03:41:59,410 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-25 03:41:59,413 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-25 03:41:59,436 INFO L130 BoogieDeclarations]: Found specification of procedure f [2023-08-25 03:41:59,436 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2023-08-25 03:41:59,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 03:41:59,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-25 03:41:59,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 03:41:59,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 03:41:59,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 03:41:59,440 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 03:41:59,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-25 03:41:59,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 03:41:59,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-25 03:41:59,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 03:41:59,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 03:41:59,442 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 03:41:59,572 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 03:41:59,573 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 03:41:59,888 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 03:41:59,896 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 03:41:59,896 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-08-25 03:41:59,898 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 03:41:59 BoogieIcfgContainer [2023-08-25 03:41:59,898 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 03:41:59,900 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 03:41:59,900 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 03:41:59,902 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 03:41:59,903 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 03:41:58" (1/3) ... [2023-08-25 03:41:59,903 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@728da611 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 03:41:59, skipping insertion in model container [2023-08-25 03:41:59,903 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:41:59" (2/3) ... [2023-08-25 03:41:59,904 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@728da611 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 03:41:59, skipping insertion in model container [2023-08-25 03:41:59,904 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 03:41:59" (3/3) ... [2023-08-25 03:41:59,905 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_21-arrayloop2_nr.i [2023-08-25 03:41:59,920 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 03:41:59,920 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2023-08-25 03:41:59,920 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 03:42:00,025 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 03:42:00,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 286 places, 293 transitions, 596 flow [2023-08-25 03:42:00,204 INFO L124 PetriNetUnfolderBase]: 14/291 cut-off events. [2023-08-25 03:42:00,204 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:42:00,212 INFO L83 FinitePrefix]: Finished finitePrefix Result has 298 conditions, 291 events. 14/291 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 581 event pairs, 0 based on Foata normal form. 0/259 useless extension candidates. Maximal degree in co-relation 216. Up to 2 conditions per place. [2023-08-25 03:42:00,213 INFO L82 GeneralOperation]: Start removeDead. Operand has 286 places, 293 transitions, 596 flow [2023-08-25 03:42:00,222 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 284 places, 291 transitions, 588 flow [2023-08-25 03:42:00,227 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 03:42:00,241 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 284 places, 291 transitions, 588 flow [2023-08-25 03:42:00,244 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 284 places, 291 transitions, 588 flow [2023-08-25 03:42:00,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 284 places, 291 transitions, 588 flow [2023-08-25 03:42:00,293 INFO L124 PetriNetUnfolderBase]: 14/291 cut-off events. [2023-08-25 03:42:00,294 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:42:00,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 298 conditions, 291 events. 14/291 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 580 event pairs, 0 based on Foata normal form. 0/259 useless extension candidates. Maximal degree in co-relation 216. Up to 2 conditions per place. [2023-08-25 03:42:00,304 INFO L119 LiptonReduction]: Number of co-enabled transitions 12194 [2023-08-25 03:42:34,167 WARN L234 SmtUtils]: Spent 6.62s on a formula simplification that was a NOOP. DAG size: 121 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 03:42:45,366 WARN L234 SmtUtils]: Spent 6.48s on a formula simplification that was a NOOP. DAG size: 121 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 03:43:20,299 WARN L234 SmtUtils]: Spent 30.18s on a formula simplification that was a NOOP. DAG size: 176 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 03:43:42,811 WARN L234 SmtUtils]: Spent 22.51s on a formula simplification that was a NOOP. DAG size: 166 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 03:44:13,360 WARN L234 SmtUtils]: Spent 30.55s on a formula simplification that was a NOOP. DAG size: 176 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 03:44:41,788 WARN L234 SmtUtils]: Spent 28.43s on a formula simplification that was a NOOP. DAG size: 166 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 03:46:50,735 WARN L234 SmtUtils]: Spent 2.15m on a formula simplification that was a NOOP. DAG size: 260 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 03:48:50,284 WARN L234 SmtUtils]: Spent 1.99m 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) [2023-08-25 03:51:01,516 WARN L234 SmtUtils]: Spent 2.19m on a formula simplification that was a NOOP. DAG size: 260 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 03:52:42,530 WARN L234 SmtUtils]: Spent 1.68m 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) [2023-08-25 03:52:42,534 INFO L134 LiptonReduction]: Checked pairs total: 46592 [2023-08-25 03:52:42,534 INFO L136 LiptonReduction]: Total number of compositions: 265 [2023-08-25 03:52:42,545 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 03:52:42,549 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;@403e9836, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 03:52:42,549 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2023-08-25 03:52:42,551 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 03:52:42,551 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-08-25 03:52:42,551 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:52:42,551 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:52:42,551 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-25 03:52:42,552 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-08-25 03:52:42,556 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:52:42,556 INFO L85 PathProgramCache]: Analyzing trace with hash 28689, now seen corresponding path program 1 times [2023-08-25 03:52:42,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:52:42,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060640926] [2023-08-25 03:52:42,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:52:42,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:52:42,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:52:42,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:52:42,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:52:42,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060640926] [2023-08-25 03:52:42,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060640926] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:52:42,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:52:42,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 03:52:42,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251766244] [2023-08-25 03:52:42,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:52:42,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 03:52:42,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:52:42,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 03:52:42,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 03:52:42,725 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 283 out of 558 [2023-08-25 03:52:42,731 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 83 transitions, 172 flow. Second operand has 2 states, 2 states have (on average 284.0) internal successors, (568), 2 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:52:42,731 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:52:42,731 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 283 of 558 [2023-08-25 03:52:42,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:52:43,630 INFO L124 PetriNetUnfolderBase]: 434/1347 cut-off events. [2023-08-25 03:52:43,630 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2023-08-25 03:52:43,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2076 conditions, 1347 events. 434/1347 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 8222 event pairs, 340 based on Foata normal form. 0/1219 useless extension candidates. Maximal degree in co-relation 2058. Up to 702 conditions per place. [2023-08-25 03:52:43,639 INFO L140 encePairwiseOnDemand]: 548/558 looper letters, 33 selfloop transitions, 0 changer transitions 0/73 dead transitions. [2023-08-25 03:52:43,639 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 73 transitions, 218 flow [2023-08-25 03:52:43,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 03:52:43,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 03:52:43,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 609 transitions. [2023-08-25 03:52:43,653 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5456989247311828 [2023-08-25 03:52:43,654 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 609 transitions. [2023-08-25 03:52:43,654 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 609 transitions. [2023-08-25 03:52:43,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:52:43,658 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 609 transitions. [2023-08-25 03:52:43,662 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 304.5) internal successors, (609), 2 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:52:43,667 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 558.0) internal successors, (1674), 3 states have internal predecessors, (1674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:52:43,668 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 558.0) internal successors, (1674), 3 states have internal predecessors, (1674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:52:43,669 INFO L175 Difference]: Start difference. First operand has 84 places, 83 transitions, 172 flow. Second operand 2 states and 609 transitions. [2023-08-25 03:52:43,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 73 transitions, 218 flow [2023-08-25 03:52:43,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 73 transitions, 216 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 03:52:43,674 INFO L231 Difference]: Finished difference. Result has 73 places, 73 transitions, 150 flow [2023-08-25 03:52:43,676 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, 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} [2023-08-25 03:52:43,679 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -11 predicate places. [2023-08-25 03:52:43,679 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 73 transitions, 150 flow [2023-08-25 03:52:43,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 284.0) internal successors, (568), 2 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:52:43,680 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:52:43,680 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:52:43,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 03:52:43,680 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-08-25 03:52:43,681 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:52:43,681 INFO L85 PathProgramCache]: Analyzing trace with hash -420681571, now seen corresponding path program 1 times [2023-08-25 03:52:43,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:52:43,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318490166] [2023-08-25 03:52:43,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:52:43,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:52:43,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:52:43,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:52:43,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:52:43,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318490166] [2023-08-25 03:52:43,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318490166] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:52:43,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:52:43,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 03:52:43,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914411353] [2023-08-25 03:52:43,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:52:43,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 03:52:43,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:52:43,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 03:52:43,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 03:52:43,821 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 558 [2023-08-25 03:52:43,822 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 73 transitions, 150 flow. Second operand has 3 states, 3 states have (on average 274.0) internal successors, (822), 3 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:52:43,822 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:52:43,823 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 558 [2023-08-25 03:52:43,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:52:45,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-25 03:52:46,116 INFO L124 PetriNetUnfolderBase]: 435/1350 cut-off events. [2023-08-25 03:52:46,117 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:52:46,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2081 conditions, 1350 events. 435/1350 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 8226 event pairs, 340 based on Foata normal form. 0/1221 useless extension candidates. Maximal degree in co-relation 2078. Up to 702 conditions per place. [2023-08-25 03:52:46,124 INFO L140 encePairwiseOnDemand]: 555/558 looper letters, 34 selfloop transitions, 2 changer transitions 0/76 dead transitions. [2023-08-25 03:52:46,124 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 76 transitions, 228 flow [2023-08-25 03:52:46,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 03:52:46,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 03:52:46,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 853 transitions. [2023-08-25 03:52:46,127 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5095579450418161 [2023-08-25 03:52:46,128 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 853 transitions. [2023-08-25 03:52:46,128 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 853 transitions. [2023-08-25 03:52:46,128 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:52:46,128 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 853 transitions. [2023-08-25 03:52:46,130 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 284.3333333333333) internal successors, (853), 3 states have internal predecessors, (853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:52:46,134 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 558.0) internal successors, (2232), 4 states have internal predecessors, (2232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:52:46,135 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 558.0) internal successors, (2232), 4 states have internal predecessors, (2232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:52:46,135 INFO L175 Difference]: Start difference. First operand has 73 places, 73 transitions, 150 flow. Second operand 3 states and 853 transitions. [2023-08-25 03:52:46,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 76 transitions, 228 flow [2023-08-25 03:52:46,136 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 76 transitions, 228 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 03:52:46,137 INFO L231 Difference]: Finished difference. Result has 76 places, 74 transitions, 162 flow [2023-08-25 03:52:46,138 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, 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} [2023-08-25 03:52:46,138 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -8 predicate places. [2023-08-25 03:52:46,138 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 74 transitions, 162 flow [2023-08-25 03:52:46,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 274.0) internal successors, (822), 3 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:52:46,139 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:52:46,139 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:52:46,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 03:52:46,140 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-08-25 03:52:46,140 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:52:46,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1961248393, now seen corresponding path program 1 times [2023-08-25 03:52:46,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:52:46,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985939136] [2023-08-25 03:52:46,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:52:46,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:52:46,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:52:46,253 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:52:46,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:52:46,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985939136] [2023-08-25 03:52:46,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985939136] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:52:46,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:52:46,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 03:52:46,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839118668] [2023-08-25 03:52:46,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:52:46,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 03:52:46,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:52:46,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 03:52:46,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 03:52:46,256 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 275 out of 558 [2023-08-25 03:52:46,257 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 74 transitions, 162 flow. Second operand has 3 states, 3 states have (on average 277.6666666666667) internal successors, (833), 3 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:52:46,257 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:52:46,257 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 275 of 558 [2023-08-25 03:52:46,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:52:47,821 INFO L124 PetriNetUnfolderBase]: 435/1352 cut-off events. [2023-08-25 03:52:47,822 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:52:47,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2092 conditions, 1352 events. 435/1352 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 8225 event pairs, 340 based on Foata normal form. 2/1228 useless extension candidates. Maximal degree in co-relation 2087. Up to 705 conditions per place. [2023-08-25 03:52:47,829 INFO L140 encePairwiseOnDemand]: 555/558 looper letters, 33 selfloop transitions, 2 changer transitions 0/75 dead transitions. [2023-08-25 03:52:47,829 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 75 transitions, 234 flow [2023-08-25 03:52:47,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 03:52:47,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 03:52:47,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 860 transitions. [2023-08-25 03:52:47,832 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5137395459976105 [2023-08-25 03:52:47,832 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 860 transitions. [2023-08-25 03:52:47,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 860 transitions. [2023-08-25 03:52:47,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:52:47,832 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 860 transitions. [2023-08-25 03:52:47,834 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 286.6666666666667) internal successors, (860), 3 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:52:47,837 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 558.0) internal successors, (2232), 4 states have internal predecessors, (2232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:52:47,838 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 558.0) internal successors, (2232), 4 states have internal predecessors, (2232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:52:47,838 INFO L175 Difference]: Start difference. First operand has 76 places, 74 transitions, 162 flow. Second operand 3 states and 860 transitions. [2023-08-25 03:52:47,838 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 75 transitions, 234 flow [2023-08-25 03:52:47,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 75 transitions, 232 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 03:52:47,840 INFO L231 Difference]: Finished difference. Result has 78 places, 75 transitions, 174 flow [2023-08-25 03:52:47,841 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, 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} [2023-08-25 03:52:47,841 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -6 predicate places. [2023-08-25 03:52:47,841 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 75 transitions, 174 flow [2023-08-25 03:52:47,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 277.6666666666667) internal successors, (833), 3 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:52:47,842 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:52:47,842 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:52:47,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 03:52:47,843 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-08-25 03:52:47,843 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:52:47,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1034730561, now seen corresponding path program 1 times [2023-08-25 03:52:47,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:52:47,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388258462] [2023-08-25 03:52:47,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:52:47,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:52:47,905 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-25 03:52:47,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [755110306] [2023-08-25 03:52:47,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:52:47,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 03:52:47,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 03:52:47,909 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) [2023-08-25 03:52:47,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-25 03:52:48,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:52:48,241 INFO L262 TraceCheckSpWp]: Trace formula consists of 1111 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-25 03:52:48,246 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 03:52:48,276 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:52:48,276 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 03:52:48,295 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:52:48,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:52:48,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388258462] [2023-08-25 03:52:48,295 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-25 03:52:48,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [755110306] [2023-08-25 03:52:48,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [755110306] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 03:52:48,296 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-08-25 03:52:48,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-08-25 03:52:48,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673821833] [2023-08-25 03:52:48,296 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-08-25 03:52:48,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 03:52:48,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:52:48,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 03:52:48,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 03:52:48,299 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 275 out of 558 [2023-08-25 03:52:48,301 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 75 transitions, 174 flow. Second operand has 6 states, 6 states have (on average 277.0) internal successors, (1662), 6 states have internal predecessors, (1662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:52:48,301 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:52:48,301 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 275 of 558 [2023-08-25 03:52:48,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:52:51,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-25 03:52:52,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-25 03:52:52,811 INFO L124 PetriNetUnfolderBase]: 435/1358 cut-off events. [2023-08-25 03:52:52,812 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 03:52:52,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2120 conditions, 1358 events. 435/1358 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 8226 event pairs, 340 based on Foata normal form. 6/1238 useless extension candidates. Maximal degree in co-relation 2114. Up to 705 conditions per place. [2023-08-25 03:52:52,818 INFO L140 encePairwiseOnDemand]: 555/558 looper letters, 33 selfloop transitions, 5 changer transitions 0/78 dead transitions. [2023-08-25 03:52:52,818 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 78 transitions, 262 flow [2023-08-25 03:52:52,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 03:52:52,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 03:52:52,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1690 transitions. [2023-08-25 03:52:52,823 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.504778972520908 [2023-08-25 03:52:52,823 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1690 transitions. [2023-08-25 03:52:52,823 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1690 transitions. [2023-08-25 03:52:52,824 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:52:52,824 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1690 transitions. [2023-08-25 03:52:52,827 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 281.6666666666667) internal successors, (1690), 6 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:52:52,832 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 558.0) internal successors, (3906), 7 states have internal predecessors, (3906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:52:52,833 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 558.0) internal successors, (3906), 7 states have internal predecessors, (3906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:52:52,833 INFO L175 Difference]: Start difference. First operand has 78 places, 75 transitions, 174 flow. Second operand 6 states and 1690 transitions. [2023-08-25 03:52:52,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 78 transitions, 262 flow [2023-08-25 03:52:52,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 78 transitions, 258 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-25 03:52:52,841 INFO L231 Difference]: Finished difference. Result has 85 places, 78 transitions, 212 flow [2023-08-25 03:52:52,841 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, 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} [2023-08-25 03:52:52,846 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 1 predicate places. [2023-08-25 03:52:52,847 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 78 transitions, 212 flow [2023-08-25 03:52:52,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 277.0) internal successors, (1662), 6 states have internal predecessors, (1662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:52:52,848 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:52:52,848 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:52:52,858 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-25 03:52:53,055 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 [2023-08-25 03:52:53,055 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-08-25 03:52:53,056 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:52:53,056 INFO L85 PathProgramCache]: Analyzing trace with hash -422124535, now seen corresponding path program 2 times [2023-08-25 03:52:53,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:52:53,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393163099] [2023-08-25 03:52:53,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:52:53,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:52:53,272 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-25 03:52:53,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [636070967] [2023-08-25 03:52:53,273 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 03:52:53,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 03:52:53,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 03:52:53,277 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) [2023-08-25 03:52:53,306 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-25 03:52:53,822 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-25 03:52:53,822 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 03:52:53,824 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 17 conjunts are in the unsatisfiable core [2023-08-25 03:52:53,828 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 03:52:53,856 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 [2023-08-25 03:52:53,874 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 [2023-08-25 03:52:53,899 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 03:52:53,900 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 [2023-08-25 03:52:53,931 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 03:52:53,931 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 [2023-08-25 03:52:53,956 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-08-25 03:52:53,956 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-25 03:52:53,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:52:53,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393163099] [2023-08-25 03:52:53,957 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-25 03:52:53,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [636070967] [2023-08-25 03:52:53,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [636070967] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:52:53,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:52:53,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 03:52:53,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491427661] [2023-08-25 03:52:53,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:52:53,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 03:52:53,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:52:53,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 03:52:53,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 03:52:53,960 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 558 [2023-08-25 03:52:53,961 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 78 transitions, 212 flow. Second operand has 6 states, 6 states have (on average 155.33333333333334) internal successors, (932), 6 states have internal predecessors, (932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:52:53,961 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:52:53,961 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 558 [2023-08-25 03:52:53,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:52:55,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-25 03:52:57,599 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 [] [2023-08-25 03:52:59,530 INFO L124 PetriNetUnfolderBase]: 4375/7184 cut-off events. [2023-08-25 03:52:59,530 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2023-08-25 03:52:59,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14497 conditions, 7184 events. 4375/7184 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 36951 event pairs, 2215 based on Foata normal form. 0/6148 useless extension candidates. Maximal degree in co-relation 14488. Up to 5136 conditions per place. [2023-08-25 03:52:59,573 INFO L140 encePairwiseOnDemand]: 546/558 looper letters, 209 selfloop transitions, 23 changer transitions 0/232 dead transitions. [2023-08-25 03:52:59,573 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 232 transitions, 992 flow [2023-08-25 03:52:59,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 03:52:59,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 03:52:59,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1146 transitions. [2023-08-25 03:52:59,577 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.34229390681003585 [2023-08-25 03:52:59,577 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1146 transitions. [2023-08-25 03:52:59,577 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1146 transitions. [2023-08-25 03:52:59,578 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:52:59,578 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1146 transitions. [2023-08-25 03:52:59,580 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 191.0) internal successors, (1146), 6 states have internal predecessors, (1146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:52:59,585 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 558.0) internal successors, (3906), 7 states have internal predecessors, (3906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:52:59,587 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 558.0) internal successors, (3906), 7 states have internal predecessors, (3906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:52:59,587 INFO L175 Difference]: Start difference. First operand has 85 places, 78 transitions, 212 flow. Second operand 6 states and 1146 transitions. [2023-08-25 03:52:59,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 232 transitions, 992 flow [2023-08-25 03:52:59,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 232 transitions, 978 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-08-25 03:52:59,593 INFO L231 Difference]: Finished difference. Result has 94 places, 100 transitions, 356 flow [2023-08-25 03:52:59,593 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, 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} [2023-08-25 03:52:59,594 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 10 predicate places. [2023-08-25 03:52:59,594 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 100 transitions, 356 flow [2023-08-25 03:52:59,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 155.33333333333334) internal successors, (932), 6 states have internal predecessors, (932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:52:59,594 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:52:59,594 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:52:59,601 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-25 03:52:59,800 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 [2023-08-25 03:52:59,801 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-08-25 03:52:59,801 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:52:59,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1582863324, now seen corresponding path program 1 times [2023-08-25 03:52:59,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:52:59,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601194687] [2023-08-25 03:52:59,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:52:59,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:52:59,986 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-25 03:52:59,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [665461552] [2023-08-25 03:52:59,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:52:59,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 03:52:59,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 03:52:59,989 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) [2023-08-25 03:53:00,015 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-25 03:53:01,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:53:01,263 INFO L262 TraceCheckSpWp]: Trace formula consists of 3966 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-25 03:53:01,268 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 03:53:01,299 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:53:01,299 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 03:53:01,349 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:53:01,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:53:01,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601194687] [2023-08-25 03:53:01,350 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-25 03:53:01,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [665461552] [2023-08-25 03:53:01,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [665461552] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 03:53:01,350 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-08-25 03:53:01,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-08-25 03:53:01,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104541017] [2023-08-25 03:53:01,350 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-08-25 03:53:01,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-25 03:53:01,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:53:01,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-25 03:53:01,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-08-25 03:53:01,354 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 275 out of 558 [2023-08-25 03:53:01,357 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 100 transitions, 356 flow. Second operand has 12 states, 12 states have (on average 276.6666666666667) internal successors, (3320), 12 states have internal predecessors, (3320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:53:01,357 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:53:01,357 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 275 of 558 [2023-08-25 03:53:01,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:53:05,527 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 [] [2023-08-25 03:53:06,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-25 03:53:09,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-25 03:53:10,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-25 03:53:12,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-25 03:53:12,806 INFO L124 PetriNetUnfolderBase]: 789/2312 cut-off events. [2023-08-25 03:53:12,806 INFO L125 PetriNetUnfolderBase]: For 341/369 co-relation queries the response was YES. [2023-08-25 03:53:12,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4206 conditions, 2312 events. 789/2312 cut-off events. For 341/369 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 15881 event pairs, 520 based on Foata normal form. 18/2180 useless extension candidates. Maximal degree in co-relation 4192. Up to 1175 conditions per place. [2023-08-25 03:53:12,822 INFO L140 encePairwiseOnDemand]: 555/558 looper letters, 39 selfloop transitions, 11 changer transitions 0/106 dead transitions. [2023-08-25 03:53:12,822 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 106 transitions, 492 flow [2023-08-25 03:53:12,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-25 03:53:12,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-25 03:53:12,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 3349 transitions. [2023-08-25 03:53:12,829 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5001493428912783 [2023-08-25 03:53:12,829 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 3349 transitions. [2023-08-25 03:53:12,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 3349 transitions. [2023-08-25 03:53:12,831 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:53:12,831 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 3349 transitions. [2023-08-25 03:53:12,837 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 279.0833333333333) internal successors, (3349), 12 states have internal predecessors, (3349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:53:12,844 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 558.0) internal successors, (7254), 13 states have internal predecessors, (7254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:53:12,846 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 558.0) internal successors, (7254), 13 states have internal predecessors, (7254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:53:12,846 INFO L175 Difference]: Start difference. First operand has 94 places, 100 transitions, 356 flow. Second operand 12 states and 3349 transitions. [2023-08-25 03:53:12,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 106 transitions, 492 flow [2023-08-25 03:53:12,851 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 106 transitions, 492 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 03:53:12,854 INFO L231 Difference]: Finished difference. Result has 111 places, 106 transitions, 452 flow [2023-08-25 03:53:12,855 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, 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} [2023-08-25 03:53:12,857 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 27 predicate places. [2023-08-25 03:53:12,857 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 106 transitions, 452 flow [2023-08-25 03:53:12,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 276.6666666666667) internal successors, (3320), 12 states have internal predecessors, (3320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:53:12,859 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:53:12,859 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:53:12,872 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-08-25 03:53:13,071 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 [2023-08-25 03:53:13,072 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-08-25 03:53:13,072 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:53:13,072 INFO L85 PathProgramCache]: Analyzing trace with hash -279306140, now seen corresponding path program 2 times [2023-08-25 03:53:13,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:53:13,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508809973] [2023-08-25 03:53:13,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:53:13,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:53:13,506 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-25 03:53:13,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [721421834] [2023-08-25 03:53:13,507 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 03:53:13,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 03:53:13,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 03:53:13,508 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) [2023-08-25 03:53:13,514 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-25 03:53:14,788 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-25 03:53:14,788 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 03:53:14,793 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 17 conjunts are in the unsatisfiable core [2023-08-25 03:53:14,797 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 03:53:14,812 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 [2023-08-25 03:53:14,825 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 [2023-08-25 03:53:14,845 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 03:53:14,845 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 [2023-08-25 03:53:14,881 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 03:53:14,881 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 [2023-08-25 03:53:14,906 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-08-25 03:53:14,906 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-25 03:53:14,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:53:14,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508809973] [2023-08-25 03:53:14,907 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-25 03:53:14,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [721421834] [2023-08-25 03:53:14,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [721421834] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:53:14,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:53:14,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 03:53:14,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100429228] [2023-08-25 03:53:14,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:53:14,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 03:53:14,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:53:14,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 03:53:14,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 03:53:14,909 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 558 [2023-08-25 03:53:14,910 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 106 transitions, 452 flow. Second operand has 6 states, 6 states have (on average 155.66666666666666) internal successors, (934), 6 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:53:14,910 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:53:14,910 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 558 [2023-08-25 03:53:14,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:53:16,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-25 03:53:18,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-25 03:53:19,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-25 03:53:21,231 INFO L124 PetriNetUnfolderBase]: 6141/10046 cut-off events. [2023-08-25 03:53:21,231 INFO L125 PetriNetUnfolderBase]: For 2198/2198 co-relation queries the response was YES. [2023-08-25 03:53:21,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22667 conditions, 10046 events. 6141/10046 cut-off events. For 2198/2198 co-relation queries the response was YES. Maximal size of possible extension queue 188. Compared 55613 event pairs, 2908 based on Foata normal form. 0/8904 useless extension candidates. Maximal degree in co-relation 22646. Up to 7189 conditions per place. [2023-08-25 03:53:21,290 INFO L140 encePairwiseOnDemand]: 546/558 looper letters, 249 selfloop transitions, 31 changer transitions 0/280 dead transitions. [2023-08-25 03:53:21,290 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 280 transitions, 1546 flow [2023-08-25 03:53:21,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 03:53:21,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 03:53:21,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1138 transitions. [2023-08-25 03:53:21,297 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.33990442054958186 [2023-08-25 03:53:21,297 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1138 transitions. [2023-08-25 03:53:21,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1138 transitions. [2023-08-25 03:53:21,298 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:53:21,298 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1138 transitions. [2023-08-25 03:53:21,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 189.66666666666666) internal successors, (1138), 6 states have internal predecessors, (1138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:53:21,306 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 558.0) internal successors, (3906), 7 states have internal predecessors, (3906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:53:21,307 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 558.0) internal successors, (3906), 7 states have internal predecessors, (3906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:53:21,307 INFO L175 Difference]: Start difference. First operand has 111 places, 106 transitions, 452 flow. Second operand 6 states and 1138 transitions. [2023-08-25 03:53:21,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 280 transitions, 1546 flow [2023-08-25 03:53:21,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 280 transitions, 1498 flow, removed 19 selfloop flow, removed 5 redundant places. [2023-08-25 03:53:21,316 INFO L231 Difference]: Finished difference. Result has 116 places, 136 transitions, 662 flow [2023-08-25 03:53:21,316 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, 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} [2023-08-25 03:53:21,317 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 32 predicate places. [2023-08-25 03:53:21,317 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 136 transitions, 662 flow [2023-08-25 03:53:21,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 155.66666666666666) internal successors, (934), 6 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:53:21,318 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:53:21,318 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] [2023-08-25 03:53:21,326 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-08-25 03:53:21,525 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 [2023-08-25 03:53:21,526 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting fErr1ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-08-25 03:53:21,526 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:53:21,526 INFO L85 PathProgramCache]: Analyzing trace with hash -68049630, now seen corresponding path program 1 times [2023-08-25 03:53:21,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:53:21,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117630550] [2023-08-25 03:53:21,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:53:21,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:53:21,950 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-25 03:53:21,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [237036243] [2023-08-25 03:53:21,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:53:21,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 03:53:21,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 03:53:21,953 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) [2023-08-25 03:53:21,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-08-25 03:53:24,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:53:24,690 INFO L262 TraceCheckSpWp]: Trace formula consists of 9633 conjuncts, 12 conjunts are in the unsatisfiable core [2023-08-25 03:53:24,697 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 03:53:24,787 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 1 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:53:24,788 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 03:53:24,967 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 1 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:53:24,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:53:24,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117630550] [2023-08-25 03:53:24,968 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-25 03:53:24,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [237036243] [2023-08-25 03:53:24,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [237036243] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 03:53:24,968 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-08-25 03:53:24,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2023-08-25 03:53:24,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876496581] [2023-08-25 03:53:24,969 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-08-25 03:53:24,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-08-25 03:53:24,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:53:24,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-08-25 03:53:24,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-08-25 03:53:24,974 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 275 out of 558 [2023-08-25 03:53:24,978 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 136 transitions, 662 flow. Second operand has 24 states, 24 states have (on average 276.3333333333333) internal successors, (6632), 24 states have internal predecessors, (6632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:53:24,978 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:53:24,978 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 275 of 558 [2023-08-25 03:53:24,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:53:26,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-25 03:53:28,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-25 03:53:30,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-25 03:53:32,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-25 03:53:33,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-25 03:53:36,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-25 03:53:37,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-25 03:53:41,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-25 03:53:43,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-25 03:53:47,481 INFO L124 PetriNetUnfolderBase]: 1224/3509 cut-off events. [2023-08-25 03:53:47,482 INFO L125 PetriNetUnfolderBase]: For 2305/2389 co-relation queries the response was YES. [2023-08-25 03:53:47,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7287 conditions, 3509 events. 1224/3509 cut-off events. For 2305/2389 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 26483 event pairs, 723 based on Foata normal form. 48/3383 useless extension candidates. Maximal degree in co-relation 7262. Up to 1776 conditions per place. [2023-08-25 03:53:47,555 INFO L140 encePairwiseOnDemand]: 555/558 looper letters, 46 selfloop transitions, 23 changer transitions 0/148 dead transitions. [2023-08-25 03:53:47,555 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 148 transitions, 872 flow [2023-08-25 03:53:47,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-08-25 03:53:47,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-08-25 03:53:47,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 6667 transitions. [2023-08-25 03:53:47,570 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49783452807646356 [2023-08-25 03:53:47,570 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 6667 transitions. [2023-08-25 03:53:47,570 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 6667 transitions. [2023-08-25 03:53:47,574 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:53:47,574 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 6667 transitions. [2023-08-25 03:53:47,585 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 277.7916666666667) internal successors, (6667), 24 states have internal predecessors, (6667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:53:47,607 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 558.0) internal successors, (13950), 25 states have internal predecessors, (13950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:53:47,611 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 558.0) internal successors, (13950), 25 states have internal predecessors, (13950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:53:47,611 INFO L175 Difference]: Start difference. First operand has 116 places, 136 transitions, 662 flow. Second operand 24 states and 6667 transitions. [2023-08-25 03:53:47,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 148 transitions, 872 flow [2023-08-25 03:53:47,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 148 transitions, 872 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 03:53:47,618 INFO L231 Difference]: Finished difference. Result has 151 places, 148 transitions, 854 flow [2023-08-25 03:53:47,618 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, 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} [2023-08-25 03:53:47,620 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 67 predicate places. [2023-08-25 03:53:47,620 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 148 transitions, 854 flow [2023-08-25 03:53:47,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 276.3333333333333) internal successors, (6632), 24 states have internal predecessors, (6632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:53:47,622 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:53:47,622 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] [2023-08-25 03:53:47,650 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-08-25 03:53:47,837 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 [2023-08-25 03:53:47,837 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting fErr1ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-08-25 03:53:47,837 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:53:47,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1639826014, now seen corresponding path program 2 times [2023-08-25 03:53:47,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:53:47,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700970120] [2023-08-25 03:53:47,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:53:47,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:53:48,641 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-25 03:53:48,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1005737436] [2023-08-25 03:53:48,641 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 03:53:48,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 03:53:48,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 03:53:48,645 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) [2023-08-25 03:53:48,651 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-08-25 03:53:51,672 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-25 03:53:51,672 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 03:53:51,684 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 17 conjunts are in the unsatisfiable core [2023-08-25 03:53:51,691 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 03:53:51,699 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 [2023-08-25 03:53:51,710 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 [2023-08-25 03:53:51,734 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 03:53:51,734 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 [2023-08-25 03:53:51,764 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 03:53:51,764 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 [2023-08-25 03:53:51,787 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2023-08-25 03:53:51,788 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-25 03:53:51,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:53:51,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700970120] [2023-08-25 03:53:51,788 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-25 03:53:51,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1005737436] [2023-08-25 03:53:51,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1005737436] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:53:51,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:53:51,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 03:53:51,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312671627] [2023-08-25 03:53:51,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:53:51,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 03:53:51,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:53:51,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 03:53:51,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 03:53:51,790 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 558 [2023-08-25 03:53:51,791 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 148 transitions, 854 flow. Second operand has 6 states, 6 states have (on average 170.33333333333334) internal successors, (1022), 6 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:53:51,791 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:53:51,791 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 558 [2023-08-25 03:53:51,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:53:55,033 INFO L124 PetriNetUnfolderBase]: 6691/10972 cut-off events. [2023-08-25 03:53:55,033 INFO L125 PetriNetUnfolderBase]: For 5280/5280 co-relation queries the response was YES. [2023-08-25 03:53:55,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27328 conditions, 10972 events. 6691/10972 cut-off events. For 5280/5280 co-relation queries the response was YES. Maximal size of possible extension queue 197. Compared 61374 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. [2023-08-25 03:53:55,114 INFO L140 encePairwiseOnDemand]: 547/558 looper letters, 287 selfloop transitions, 55 changer transitions 0/342 dead transitions. [2023-08-25 03:53:55,114 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 342 transitions, 2274 flow [2023-08-25 03:53:55,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 03:53:55,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 03:53:55,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1222 transitions. [2023-08-25 03:53:55,119 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36499402628434885 [2023-08-25 03:53:55,119 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1222 transitions. [2023-08-25 03:53:55,119 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1222 transitions. [2023-08-25 03:53:55,120 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:53:55,120 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1222 transitions. [2023-08-25 03:53:55,122 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 203.66666666666666) internal successors, (1222), 6 states have internal predecessors, (1222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:53:55,126 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 558.0) internal successors, (3906), 7 states have internal predecessors, (3906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:53:55,127 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 558.0) internal successors, (3906), 7 states have internal predecessors, (3906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:53:55,127 INFO L175 Difference]: Start difference. First operand has 151 places, 148 transitions, 854 flow. Second operand 6 states and 1222 transitions. [2023-08-25 03:53:55,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 342 transitions, 2274 flow [2023-08-25 03:53:55,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 342 transitions, 2178 flow, removed 37 selfloop flow, removed 11 redundant places. [2023-08-25 03:53:55,145 INFO L231 Difference]: Finished difference. Result has 150 places, 197 transitions, 1312 flow [2023-08-25 03:53:55,146 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, 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} [2023-08-25 03:53:55,147 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 66 predicate places. [2023-08-25 03:53:55,147 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 197 transitions, 1312 flow [2023-08-25 03:53:55,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 170.33333333333334) internal successors, (1022), 6 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:53:55,147 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:53:55,147 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] [2023-08-25 03:53:55,170 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-08-25 03:53:55,365 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 [2023-08-25 03:53:55,365 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting fErr1ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-08-25 03:53:55,366 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:53:55,366 INFO L85 PathProgramCache]: Analyzing trace with hash -366189825, now seen corresponding path program 1 times [2023-08-25 03:53:55,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:53:55,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170581044] [2023-08-25 03:53:55,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:53:55,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:53:56,172 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-25 03:53:56,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2040932593] [2023-08-25 03:53:56,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:53:56,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 03:53:56,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 03:53:56,177 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) [2023-08-25 03:53:56,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-08-25 03:54:02,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:54:02,858 INFO L262 TraceCheckSpWp]: Trace formula consists of 20975 conjuncts, 24 conjunts are in the unsatisfiable core [2023-08-25 03:54:02,868 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 03:54:03,157 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 1 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:54:03,157 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 03:54:03,576 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 1 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:54:03,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:54:03,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170581044] [2023-08-25 03:54:03,576 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-25 03:54:03,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2040932593] [2023-08-25 03:54:03,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2040932593] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 03:54:03,576 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-08-25 03:54:03,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 32 [2023-08-25 03:54:03,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568679180] [2023-08-25 03:54:03,576 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-08-25 03:54:03,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-08-25 03:54:03,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:54:03,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-08-25 03:54:03,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2023-08-25 03:54:03,588 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 275 out of 558 [2023-08-25 03:54:03,593 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 197 transitions, 1312 flow. Second operand has 32 states, 32 states have (on average 276.34375) internal successors, (8843), 32 states have internal predecessors, (8843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:54:03,594 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:54:03,594 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 275 of 558 [2023-08-25 03:54:03,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:54:05,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-25 03:54:06,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-25 03:54:08,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-25 03:54:10,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-25 03:54:12,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-25 03:54:14,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-25 03:54:16,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-25 03:54:19,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-25 03:54:21,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-25 03:54:25,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-25 03:54:28,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-25 03:54:30,886 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-25 03:54:32,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-25 03:54:33,434 INFO L124 PetriNetUnfolderBase]: 1530/4259 cut-off events. [2023-08-25 03:54:33,434 INFO L125 PetriNetUnfolderBase]: For 7343/7457 co-relation queries the response was YES. [2023-08-25 03:54:33,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10346 conditions, 4259 events. 1530/4259 cut-off events. For 7343/7457 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 32283 event pairs, 829 based on Foata normal form. 48/4095 useless extension candidates. Maximal degree in co-relation 10304. Up to 2140 conditions per place. [2023-08-25 03:54:33,462 INFO L140 encePairwiseOnDemand]: 555/558 looper letters, 63 selfloop transitions, 31 changer transitions 0/205 dead transitions. [2023-08-25 03:54:33,462 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 205 transitions, 1548 flow [2023-08-25 03:54:33,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-08-25 03:54:33,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2023-08-25 03:54:33,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 8871 transitions. [2023-08-25 03:54:33,479 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49680779569892475 [2023-08-25 03:54:33,479 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 8871 transitions. [2023-08-25 03:54:33,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 8871 transitions. [2023-08-25 03:54:33,484 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:54:33,484 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 8871 transitions. [2023-08-25 03:54:33,498 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 277.21875) internal successors, (8871), 32 states have internal predecessors, (8871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:54:33,519 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 558.0) internal successors, (18414), 33 states have internal predecessors, (18414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:54:33,523 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 558.0) internal successors, (18414), 33 states have internal predecessors, (18414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:54:33,523 INFO L175 Difference]: Start difference. First operand has 150 places, 197 transitions, 1312 flow. Second operand 32 states and 8871 transitions. [2023-08-25 03:54:33,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 205 transitions, 1548 flow [2023-08-25 03:54:33,538 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 205 transitions, 1548 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 03:54:33,541 INFO L231 Difference]: Finished difference. Result has 189 places, 205 transitions, 1472 flow [2023-08-25 03:54:33,541 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, 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} [2023-08-25 03:54:33,542 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 105 predicate places. [2023-08-25 03:54:33,542 INFO L495 AbstractCegarLoop]: Abstraction has has 189 places, 205 transitions, 1472 flow [2023-08-25 03:54:33,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 276.34375) internal successors, (8843), 32 states have internal predecessors, (8843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:54:33,544 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:54:33,544 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] [2023-08-25 03:54:33,625 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-08-25 03:54:33,769 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 [2023-08-25 03:54:33,769 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting fErr1ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-08-25 03:54:33,769 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:54:33,769 INFO L85 PathProgramCache]: Analyzing trace with hash -549872129, now seen corresponding path program 2 times [2023-08-25 03:54:33,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:54:33,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060804809] [2023-08-25 03:54:33,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:54:33,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:54:34,952 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-25 03:54:34,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1032433821] [2023-08-25 03:54:34,953 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 03:54:34,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 03:54:34,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 03:54:34,957 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) [2023-08-25 03:54:34,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-08-25 03:54:40,479 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-25 03:54:40,479 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 03:54:40,496 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 17 conjunts are in the unsatisfiable core [2023-08-25 03:54:40,503 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 03:54:40,509 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 [2023-08-25 03:54:40,518 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 [2023-08-25 03:54:40,535 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 03:54:40,535 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 [2023-08-25 03:54:40,560 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 03:54:40,560 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 [2023-08-25 03:54:40,585 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 466 trivial. 0 not checked. [2023-08-25 03:54:40,585 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-25 03:54:40,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:54:40,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060804809] [2023-08-25 03:54:40,586 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-25 03:54:40,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1032433821] [2023-08-25 03:54:40,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1032433821] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:54:40,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:54:40,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 03:54:40,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140832404] [2023-08-25 03:54:40,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:54:40,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 03:54:40,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:54:40,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 03:54:40,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 03:54:40,588 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 558 [2023-08-25 03:54:40,589 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 205 transitions, 1472 flow. Second operand has 6 states, 6 states have (on average 170.66666666666666) internal successors, (1024), 6 states have internal predecessors, (1024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:54:40,589 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:54:40,589 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 558 [2023-08-25 03:54:40,589 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:54:44,179 INFO L124 PetriNetUnfolderBase]: 7173/11778 cut-off events. [2023-08-25 03:54:44,180 INFO L125 PetriNetUnfolderBase]: For 10554/10554 co-relation queries the response was YES. [2023-08-25 03:54:44,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32683 conditions, 11778 events. 7173/11778 cut-off events. For 10554/10554 co-relation queries the response was YES. Maximal size of possible extension queue 205. Compared 66689 event pairs, 3444 based on Foata normal form. 0/11112 useless extension candidates. Maximal degree in co-relation 32632. Up to 8863 conditions per place. [2023-08-25 03:54:44,241 INFO L140 encePairwiseOnDemand]: 547/558 looper letters, 344 selfloop transitions, 79 changer transitions 0/423 dead transitions. [2023-08-25 03:54:44,241 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 423 transitions, 3410 flow [2023-08-25 03:54:44,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 03:54:44,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 03:54:44,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1214 transitions. [2023-08-25 03:54:44,247 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36260454002389486 [2023-08-25 03:54:44,247 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1214 transitions. [2023-08-25 03:54:44,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1214 transitions. [2023-08-25 03:54:44,248 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:54:44,248 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1214 transitions. [2023-08-25 03:54:44,251 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 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) [2023-08-25 03:54:44,254 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 558.0) internal successors, (3906), 7 states have internal predecessors, (3906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:54:44,255 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 558.0) internal successors, (3906), 7 states have internal predecessors, (3906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:54:44,255 INFO L175 Difference]: Start difference. First operand has 189 places, 205 transitions, 1472 flow. Second operand 6 states and 1214 transitions. [2023-08-25 03:54:44,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 423 transitions, 3410 flow [2023-08-25 03:54:44,286 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 423 transitions, 3314 flow, removed 25 selfloop flow, removed 23 redundant places. [2023-08-25 03:54:44,292 INFO L231 Difference]: Finished difference. Result has 176 places, 270 transitions, 2274 flow [2023-08-25 03:54:44,292 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, 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} [2023-08-25 03:54:44,293 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 92 predicate places. [2023-08-25 03:54:44,293 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 270 transitions, 2274 flow [2023-08-25 03:54:44,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 170.66666666666666) internal successors, (1024), 6 states have internal predecessors, (1024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:54:44,294 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:54:44,294 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] [2023-08-25 03:54:44,325 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-08-25 03:54:44,505 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 [2023-08-25 03:54:44,505 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting fErr2ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-08-25 03:54:44,505 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:54:44,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1574446718, now seen corresponding path program 1 times [2023-08-25 03:54:44,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:54:44,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676972848] [2023-08-25 03:54:44,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:54:44,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:54:45,650 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-25 03:54:45,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2110447039] [2023-08-25 03:54:45,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:54:45,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 03:54:45,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 03:54:45,657 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) [2023-08-25 03:54:45,658 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-08-25 03:54:55,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:54:56,046 INFO L262 TraceCheckSpWp]: Trace formula consists of 28531 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-25 03:54:56,062 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 03:54:56,120 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2023-08-25 03:54:56,120 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 03:54:56,188 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2023-08-25 03:54:56,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:54:56,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676972848] [2023-08-25 03:54:56,189 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-25 03:54:56,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2110447039] [2023-08-25 03:54:56,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2110447039] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 03:54:56,189 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-08-25 03:54:56,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-08-25 03:54:56,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581688232] [2023-08-25 03:54:56,189 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-08-25 03:54:56,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 03:54:56,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:54:56,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 03:54:56,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 03:54:56,191 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 558 [2023-08-25 03:54:56,192 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 270 transitions, 2274 flow. Second operand has 6 states, 6 states have (on average 275.0) internal successors, (1650), 6 states have internal predecessors, (1650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:54:56,192 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:54:56,192 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 558 [2023-08-25 03:54:56,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:54:57,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-25 03:55:00,900 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 [] [2023-08-25 03:55:01,898 INFO L124 PetriNetUnfolderBase]: 1892/5080 cut-off events. [2023-08-25 03:55:01,898 INFO L125 PetriNetUnfolderBase]: For 9543/9675 co-relation queries the response was YES. [2023-08-25 03:55:01,924 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14586 conditions, 5080 events. 1892/5080 cut-off events. For 9543/9675 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 38026 event pairs, 945 based on Foata normal form. 35/4969 useless extension candidates. Maximal degree in co-relation 14531. Up to 2498 conditions per place. [2023-08-25 03:55:01,937 INFO L140 encePairwiseOnDemand]: 554/558 looper letters, 200 selfloop transitions, 6 changer transitions 0/369 dead transitions. [2023-08-25 03:55:01,937 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 369 transitions, 3209 flow [2023-08-25 03:55:01,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 03:55:01,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 03:55:01,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1678 transitions. [2023-08-25 03:55:01,940 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.501194743130227 [2023-08-25 03:55:01,940 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1678 transitions. [2023-08-25 03:55:01,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1678 transitions. [2023-08-25 03:55:01,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:55:01,941 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1678 transitions. [2023-08-25 03:55:01,943 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 279.6666666666667) internal successors, (1678), 6 states have internal predecessors, (1678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:55:01,946 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 558.0) internal successors, (3906), 7 states have internal predecessors, (3906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:55:01,947 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 558.0) internal successors, (3906), 7 states have internal predecessors, (3906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:55:01,947 INFO L175 Difference]: Start difference. First operand has 176 places, 270 transitions, 2274 flow. Second operand 6 states and 1678 transitions. [2023-08-25 03:55:01,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 369 transitions, 3209 flow [2023-08-25 03:55:01,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 369 transitions, 3209 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 03:55:01,984 INFO L231 Difference]: Finished difference. Result has 185 places, 273 transitions, 2437 flow [2023-08-25 03:55:01,985 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, 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} [2023-08-25 03:55:01,985 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 101 predicate places. [2023-08-25 03:55:01,985 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 273 transitions, 2437 flow [2023-08-25 03:55:01,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 275.0) internal successors, (1650), 6 states have internal predecessors, (1650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:55:01,986 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:55:01,986 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] [2023-08-25 03:55:02,102 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-08-25 03:55:02,205 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 [2023-08-25 03:55:02,206 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting fErr2ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-08-25 03:55:02,206 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:55:02,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1101098246, now seen corresponding path program 2 times [2023-08-25 03:55:02,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:55:02,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582494256] [2023-08-25 03:55:02,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:55:02,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:55:06,685 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-25 03:55:06,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [821736285] [2023-08-25 03:55:06,685 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 03:55:06,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 03:55:06,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 03:55:06,689 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) [2023-08-25 03:55:06,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-08-25 03:55:22,243 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-25 03:55:22,243 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 03:55:22,295 INFO L262 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 17 conjunts are in the unsatisfiable core [2023-08-25 03:55:22,316 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 03:55:22,328 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 [2023-08-25 03:55:22,337 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 [2023-08-25 03:55:22,355 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 03:55:22,355 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 [2023-08-25 03:55:22,377 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 03:55:22,377 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 [2023-08-25 03:55:22,396 INFO L134 CoverageAnalysis]: Checked inductivity of 7636 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7636 trivial. 0 not checked. [2023-08-25 03:55:22,397 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-25 03:55:22,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:55:22,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582494256] [2023-08-25 03:55:22,397 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-25 03:55:22,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [821736285] [2023-08-25 03:55:22,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [821736285] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:55:22,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:55:22,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 03:55:22,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958221712] [2023-08-25 03:55:22,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:55:22,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 03:55:22,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:55:22,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 03:55:22,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 03:55:22,399 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 558 [2023-08-25 03:55:22,399 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 273 transitions, 2437 flow. Second operand has 6 states, 6 states have (on average 169.33333333333334) internal successors, (1016), 6 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) [2023-08-25 03:55:22,399 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:55:22,400 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 558 [2023-08-25 03:55:22,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:55:24,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-25 03:55:27,310 INFO L124 PetriNetUnfolderBase]: 7718/12736 cut-off events. [2023-08-25 03:55:27,310 INFO L125 PetriNetUnfolderBase]: For 17321/17321 co-relation queries the response was YES. [2023-08-25 03:55:27,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38802 conditions, 12736 events. 7718/12736 cut-off events. For 17321/17321 co-relation queries the response was YES. Maximal size of possible extension queue 225. Compared 72694 event pairs, 4540 based on Foata normal form. 0/12116 useless extension candidates. Maximal degree in co-relation 38743. Up to 11684 conditions per place. [2023-08-25 03:55:27,389 INFO L140 encePairwiseOnDemand]: 535/558 looper letters, 316 selfloop transitions, 125 changer transitions 0/441 dead transitions. [2023-08-25 03:55:27,390 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 441 transitions, 4023 flow [2023-08-25 03:55:27,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 03:55:27,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 03:55:27,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1209 transitions. [2023-08-25 03:55:27,397 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3611111111111111 [2023-08-25 03:55:27,397 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1209 transitions. [2023-08-25 03:55:27,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1209 transitions. [2023-08-25 03:55:27,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:55:27,398 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1209 transitions. [2023-08-25 03:55:27,399 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 201.5) internal successors, (1209), 6 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:55:27,403 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 558.0) internal successors, (3906), 7 states have internal predecessors, (3906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:55:27,403 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 558.0) internal successors, (3906), 7 states have internal predecessors, (3906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:55:27,403 INFO L175 Difference]: Start difference. First operand has 185 places, 273 transitions, 2437 flow. Second operand 6 states and 1209 transitions. [2023-08-25 03:55:27,403 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 441 transitions, 4023 flow [2023-08-25 03:55:27,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 441 transitions, 4015 flow, removed 3 selfloop flow, removed 1 redundant places. [2023-08-25 03:55:27,460 INFO L231 Difference]: Finished difference. Result has 194 places, 359 transitions, 3457 flow [2023-08-25 03:55:27,460 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, 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=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3457, PETRI_PLACES=194, PETRI_TRANSITIONS=359} [2023-08-25 03:55:27,461 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 110 predicate places. [2023-08-25 03:55:27,461 INFO L495 AbstractCegarLoop]: Abstraction has has 194 places, 359 transitions, 3457 flow [2023-08-25 03:55:27,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 169.33333333333334) internal successors, (1016), 6 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) [2023-08-25 03:55:27,461 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:55:27,461 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] [2023-08-25 03:55:27,539 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-08-25 03:55:27,685 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 [2023-08-25 03:55:27,685 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting fErr2ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-08-25 03:55:27,685 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:55:27,685 INFO L85 PathProgramCache]: Analyzing trace with hash 293371271, now seen corresponding path program 1 times [2023-08-25 03:55:27,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:55:27,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944163416] [2023-08-25 03:55:27,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:55:27,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:55:32,670 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-25 03:55:32,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2014481860] [2023-08-25 03:55:32,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:55:32,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 03:55:32,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 03:55:32,676 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) [2023-08-25 03:55:32,678 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... [2023-08-25 03:56:00,076 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 [2023-08-25 03:56:00,087 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 [2023-08-25 03:56:01,085 ERROR L246 FreeRefinementEngine]: Caught known exception: Timeout or Toolchain cancelled by user [2023-08-25 03:56:01,087 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location fErr2ASSERT_VIOLATIONDATA_RACE (23 of 24 remaining) [2023-08-25 03:56:01,277 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forcibly destroying the process [2023-08-25 03:56:01,289 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 [2023-08-25 03:56:01,302 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forcibly destroying the process [2023-08-25 03:56:01,302 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 [2023-08-25 03:56:01,302 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 154 with TraceHistMax 120,while AutomatonFreeRefinementEngine was Timeout during CAMEL. [2023-08-25 03:56:01,304 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location fErr0ASSERT_VIOLATIONDATA_RACE (22 of 24 remaining) [2023-08-25 03:56:01,304 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location fErr1ASSERT_VIOLATIONDATA_RACE (21 of 24 remaining) [2023-08-25 03:56:01,304 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location fErr2ASSERT_VIOLATIONDATA_RACE (20 of 24 remaining) [2023-08-25 03:56:01,304 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location fErr3ASSERT_VIOLATIONDATA_RACE (19 of 24 remaining) [2023-08-25 03:56:01,304 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 24 remaining) [2023-08-25 03:56:01,304 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 24 remaining) [2023-08-25 03:56:01,304 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 24 remaining) [2023-08-25 03:56:01,304 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 24 remaining) [2023-08-25 03:56:01,304 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (14 of 24 remaining) [2023-08-25 03:56:01,305 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (13 of 24 remaining) [2023-08-25 03:56:01,305 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (12 of 24 remaining) [2023-08-25 03:56:01,305 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (11 of 24 remaining) [2023-08-25 03:56:01,305 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (10 of 24 remaining) [2023-08-25 03:56:01,305 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (9 of 24 remaining) [2023-08-25 03:56:01,305 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 24 remaining) [2023-08-25 03:56:01,305 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 24 remaining) [2023-08-25 03:56:01,305 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location fErr0ASSERT_VIOLATIONDATA_RACE (6 of 24 remaining) [2023-08-25 03:56:01,305 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location fErr1ASSERT_VIOLATIONDATA_RACE (5 of 24 remaining) [2023-08-25 03:56:01,305 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location fErr3ASSERT_VIOLATIONDATA_RACE (4 of 24 remaining) [2023-08-25 03:56:01,305 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location fErr0ASSERT_VIOLATIONDATA_RACE (3 of 24 remaining) [2023-08-25 03:56:01,306 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location fErr1ASSERT_VIOLATIONDATA_RACE (2 of 24 remaining) [2023-08-25 03:56:01,306 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location fErr2ASSERT_VIOLATIONDATA_RACE (1 of 24 remaining) [2023-08-25 03:56:01,306 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location fErr3ASSERT_VIOLATIONDATA_RACE (0 of 24 remaining) [2023-08-25 03:56:01,306 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-08-25 03:56:01,310 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 03:56:01,311 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 03:56:01,316 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 03:56:01 BasicIcfg [2023-08-25 03:56:01,316 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 03:56:01,317 INFO L158 Benchmark]: Toolchain (without parser) took 842753.40ms. Allocated memory was 390.1MB in the beginning and 8.3GB in the end (delta: 7.9GB). Free memory was 345.3MB in the beginning and 6.4GB in the end (delta: -6.0GB). Peak memory consumption was 2.0GB. Max. memory is 16.0GB. [2023-08-25 03:56:01,317 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 390.1MB. Free memory was 368.0MB in the beginning and 367.9MB in the end (delta: 86.3kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 03:56:01,317 INFO L158 Benchmark]: CACSL2BoogieTranslator took 697.30ms. Allocated memory is still 390.1MB. Free memory was 345.3MB in the beginning and 314.6MB in the end (delta: 30.7MB). Peak memory consumption was 31.5MB. Max. memory is 16.0GB. [2023-08-25 03:56:01,317 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.21ms. Allocated memory is still 390.1MB. Free memory was 314.6MB in the beginning and 311.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 03:56:01,318 INFO L158 Benchmark]: Boogie Preprocessor took 38.18ms. Allocated memory is still 390.1MB. Free memory was 311.5MB in the beginning and 308.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-25 03:56:01,318 INFO L158 Benchmark]: RCFGBuilder took 521.57ms. Allocated memory is still 390.1MB. Free memory was 308.3MB in the beginning and 277.9MB in the end (delta: 30.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.0GB. [2023-08-25 03:56:01,318 INFO L158 Benchmark]: TraceAbstraction took 841416.67ms. Allocated memory was 390.1MB in the beginning and 8.3GB in the end (delta: 7.9GB). Free memory was 277.9MB in the beginning and 6.4GB in the end (delta: -6.1GB). Peak memory consumption was 1.9GB. Max. memory is 16.0GB. [2023-08-25 03:56:01,319 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 390.1MB. Free memory was 368.0MB in the beginning and 367.9MB in the end (delta: 86.3kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 697.30ms. Allocated memory is still 390.1MB. Free memory was 345.3MB in the beginning and 314.6MB in the end (delta: 30.7MB). Peak memory consumption was 31.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 73.21ms. Allocated memory is still 390.1MB. Free memory was 314.6MB in the beginning and 311.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 38.18ms. Allocated memory is still 390.1MB. Free memory was 311.5MB in the beginning and 308.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * RCFGBuilder took 521.57ms. Allocated memory is still 390.1MB. Free memory was 308.3MB in the beginning and 277.9MB in the end (delta: 30.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.0GB. * TraceAbstraction took 841416.67ms. Allocated memory was 390.1MB in the beginning and 8.3GB in the end (delta: 7.9GB). Free memory was 277.9MB in the beginning and 6.4GB in the end (delta: -6.1GB). Peak memory consumption was 1.9GB. 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] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 642.3s, 284 PlacesBefore, 84 PlacesAfterwards, 291 TransitionsBefore, 83 TransitionsAfterwards, 12194 CoEnabledTransitionPairs, 8 FixpointIterations, 166 TrivialSequentialCompositions, 73 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 14 ConcurrentYvCompositions, 8 ChoiceCompositions, 265 TotalNumberOfCompositions, 46592 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 12707, independent: 11749, independent conditional: 0, independent unconditional: 11749, dependent: 958, dependent conditional: 0, dependent unconditional: 958, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5817, independent: 5719, independent conditional: 0, independent unconditional: 5719, dependent: 98, dependent conditional: 0, dependent unconditional: 98, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 12707, independent: 6030, independent conditional: 0, independent unconditional: 6030, dependent: 860, dependent conditional: 0, dependent unconditional: 860, unknown: 5817, unknown conditional: 0, unknown unconditional: 5817] , Statistics on independence cache: Total cache size (in pairs): 441, Positive cache size: 368, Positive conditional cache size: 0, Positive unconditional cache size: 368, Negative cache size: 73, Negative conditional cache size: 0, Negative unconditional cache size: 73, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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: 1030]: 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: 1034]: 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: 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: 1050]: 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: 1049]: 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, 345 locations, 24 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: 841.3s, OverallIterations: 14, TraceHistogramMax: 120, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 103.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 642.5s, HoareTripleCheckerStatistics: 4 mSolverCounterUnknown, 401 SdHoareTripleChecker+Valid, 93.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 401 mSDsluCounter, 169 SdHoareTripleChecker+Invalid, 92.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 221 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3229 IncrementalHoareTripleChecker+Invalid, 3454 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 221 mSolverCounterUnsat, 169 mSDtfsCounter, 3229 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 596 GetRequests, 488 SyntacticMatches, 16 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3457occurred 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: 8.8s SsaConstructionTime, 7.7s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 471 NumberOfCodeBlocks, 269 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 613 ConstructedInterpolants, 0 QuantifiedInterpolants, 1386 SizeOfPredicates, 0 NumberOfNonLiveVariables, 64971 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 [2023-08-25 03:56:01,336 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 137