./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_76-tricky_address3_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_76-tricky_address3_racefree.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 53e3b4cf7a6885129025777f14c3b33a959debd694827832fbe127376cb0a5f9 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 14:34:23,388 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 14:34:23,460 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-10 14:34:23,467 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 14:34:23,470 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 14:34:23,493 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 14:34:23,494 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 14:34:23,494 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 14:34:23,495 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 14:34:23,495 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 14:34:23,496 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 14:34:23,496 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 14:34:23,497 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 14:34:23,497 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 14:34:23,497 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 14:34:23,498 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 14:34:23,498 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 14:34:23,498 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 14:34:23,499 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 14:34:23,499 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 14:34:23,500 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 14:34:23,501 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 14:34:23,501 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-10 14:34:23,501 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 14:34:23,503 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 14:34:23,503 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 14:34:23,503 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 14:34:23,504 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 14:34:23,504 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 14:34:23,504 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 14:34:23,504 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 14:34:23,505 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:34:23,505 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 14:34:23,505 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 14:34:23,506 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 14:34:23,506 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 14:34:23,506 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 14:34:23,506 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 14:34:23,507 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 14:34:23,507 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 14:34:23,507 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 14:34:23,508 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53e3b4cf7a6885129025777f14c3b33a959debd694827832fbe127376cb0a5f9 [2024-11-10 14:34:23,832 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 14:34:23,860 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 14:34:23,863 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 14:34:23,865 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 14:34:23,865 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 14:34:23,867 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_76-tricky_address3_racefree.i [2024-11-10 14:34:25,235 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 14:34:25,513 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 14:34:25,514 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_76-tricky_address3_racefree.i [2024-11-10 14:34:25,534 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/478f379b3/56b7d45677f04a83a86b779fffecaac3/FLAGd484a5506 [2024-11-10 14:34:25,546 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/478f379b3/56b7d45677f04a83a86b779fffecaac3 [2024-11-10 14:34:25,548 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 14:34:25,550 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 14:34:25,551 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 14:34:25,551 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 14:34:25,555 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 14:34:25,556 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:34:25" (1/1) ... [2024-11-10 14:34:25,557 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f5cbb48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:25, skipping insertion in model container [2024-11-10 14:34:25,557 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:34:25" (1/1) ... [2024-11-10 14:34:25,603 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 14:34:26,123 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:34:26,166 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 14:34:26,241 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:34:26,311 INFO L204 MainTranslator]: Completed translation [2024-11-10 14:34:26,312 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:26 WrapperNode [2024-11-10 14:34:26,312 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 14:34:26,314 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 14:34:26,314 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 14:34:26,314 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 14:34:26,321 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:26" (1/1) ... [2024-11-10 14:34:26,350 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:26" (1/1) ... [2024-11-10 14:34:26,402 INFO L138 Inliner]: procedures = 271, calls = 110, calls flagged for inlining = 7, calls inlined = 8, statements flattened = 335 [2024-11-10 14:34:26,405 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 14:34:26,406 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 14:34:26,406 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 14:34:26,407 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 14:34:26,416 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:26" (1/1) ... [2024-11-10 14:34:26,416 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:26" (1/1) ... [2024-11-10 14:34:26,426 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:26" (1/1) ... [2024-11-10 14:34:26,429 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:26" (1/1) ... [2024-11-10 14:34:26,456 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:26" (1/1) ... [2024-11-10 14:34:26,461 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:26" (1/1) ... [2024-11-10 14:34:26,463 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:26" (1/1) ... [2024-11-10 14:34:26,465 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:26" (1/1) ... [2024-11-10 14:34:26,474 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 14:34:26,475 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 14:34:26,476 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 14:34:26,476 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 14:34:26,476 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:26" (1/1) ... [2024-11-10 14:34:26,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:34:26,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:34:26,513 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 14:34:26,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 14:34:26,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 14:34:26,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 14:34:26,566 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-10 14:34:26,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-10 14:34:26,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-10 14:34:26,566 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-10 14:34:26,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 14:34:26,567 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-10 14:34:26,567 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-10 14:34:26,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-10 14:34:26,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 14:34:26,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 14:34:26,569 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 14:34:26,701 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 14:34:26,703 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 14:34:27,183 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L954: havoc main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset; [2024-11-10 14:34:27,184 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L954-1: SUMMARY for call ULTIMATE.dealloc(main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset); srcloc: null [2024-11-10 14:34:27,317 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 14:34:27,317 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 14:34:27,378 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 14:34:27,378 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 14:34:27,379 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:34:27 BoogieIcfgContainer [2024-11-10 14:34:27,379 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 14:34:27,381 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 14:34:27,381 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 14:34:27,384 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 14:34:27,385 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 02:34:25" (1/3) ... [2024-11-10 14:34:27,386 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62d3fb3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:34:27, skipping insertion in model container [2024-11-10 14:34:27,389 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:26" (2/3) ... [2024-11-10 14:34:27,389 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62d3fb3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:34:27, skipping insertion in model container [2024-11-10 14:34:27,389 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:34:27" (3/3) ... [2024-11-10 14:34:27,391 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_76-tricky_address3_racefree.i [2024-11-10 14:34:27,411 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 14:34:27,411 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-10 14:34:27,412 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 14:34:27,501 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-10 14:34:27,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 333 places, 363 transitions, 733 flow [2024-11-10 14:34:27,742 INFO L124 PetriNetUnfolderBase]: 48/497 cut-off events. [2024-11-10 14:34:27,743 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 14:34:27,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 502 conditions, 497 events. 48/497 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1715 event pairs, 0 based on Foata normal form. 0/427 useless extension candidates. Maximal degree in co-relation 256. Up to 8 conditions per place. [2024-11-10 14:34:27,755 INFO L82 GeneralOperation]: Start removeDead. Operand has 333 places, 363 transitions, 733 flow [2024-11-10 14:34:27,766 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 333 places, 363 transitions, 733 flow [2024-11-10 14:34:27,781 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 14:34:27,791 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@6883370a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 14:34:27,792 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-10 14:34:27,843 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 14:34:27,843 INFO L124 PetriNetUnfolderBase]: 8/141 cut-off events. [2024-11-10 14:34:27,843 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:34:27,844 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:34:27,844 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:34:27,845 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-10 14:34:27,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:34:27,857 INFO L85 PathProgramCache]: Analyzing trace with hash -2089243746, now seen corresponding path program 1 times [2024-11-10 14:34:27,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:34:27,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999133943] [2024-11-10 14:34:27,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:27,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:34:28,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:28,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:34:28,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:34:28,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999133943] [2024-11-10 14:34:28,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999133943] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:34:28,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:34:28,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:34:28,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809103769] [2024-11-10 14:34:28,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:34:28,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 14:34:28,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:34:28,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 14:34:28,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 14:34:28,297 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 314 out of 363 [2024-11-10 14:34:28,305 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 363 transitions, 733 flow. Second operand has 2 states, 2 states have (on average 314.5) internal successors, (629), 2 states have internal predecessors, (629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:34:28,305 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:34:28,305 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 314 of 363 [2024-11-10 14:34:28,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:34:28,641 INFO L124 PetriNetUnfolderBase]: 77/1344 cut-off events. [2024-11-10 14:34:28,641 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-10 14:34:28,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1504 conditions, 1344 events. 77/1344 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 8569 event pairs, 64 based on Foata normal form. 253/1482 useless extension candidates. Maximal degree in co-relation 1265. Up to 155 conditions per place. [2024-11-10 14:34:28,655 INFO L140 encePairwiseOnDemand]: 334/363 looper letters, 18 selfloop transitions, 0 changer transitions 1/330 dead transitions. [2024-11-10 14:34:28,655 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 330 transitions, 703 flow [2024-11-10 14:34:28,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 14:34:28,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-10 14:34:28,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 675 transitions. [2024-11-10 14:34:28,676 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9297520661157025 [2024-11-10 14:34:28,681 INFO L175 Difference]: Start difference. First operand has 333 places, 363 transitions, 733 flow. Second operand 2 states and 675 transitions. [2024-11-10 14:34:28,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 330 transitions, 703 flow [2024-11-10 14:34:28,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 330 transitions, 703 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:34:28,697 INFO L231 Difference]: Finished difference. Result has 330 places, 329 transitions, 665 flow [2024-11-10 14:34:28,700 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=363, PETRI_DIFFERENCE_MINUEND_FLOW=667, PETRI_DIFFERENCE_MINUEND_PLACES=329, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=330, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=665, PETRI_PLACES=330, PETRI_TRANSITIONS=329} [2024-11-10 14:34:28,706 INFO L277 CegarLoopForPetriNet]: 333 programPoint places, -3 predicate places. [2024-11-10 14:34:28,706 INFO L471 AbstractCegarLoop]: Abstraction has has 330 places, 329 transitions, 665 flow [2024-11-10 14:34:28,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 314.5) internal successors, (629), 2 states have internal predecessors, (629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:34:28,707 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:34:28,708 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:34:28,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 14:34:28,709 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-10 14:34:28,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:34:28,710 INFO L85 PathProgramCache]: Analyzing trace with hash -845099032, now seen corresponding path program 1 times [2024-11-10 14:34:28,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:34:28,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909787024] [2024-11-10 14:34:28,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:28,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:34:28,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:28,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:34:28,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:34:28,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909787024] [2024-11-10 14:34:28,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909787024] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:34:28,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:34:28,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 14:34:28,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938153806] [2024-11-10 14:34:28,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:34:28,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:34:28,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:34:28,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:34:28,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:34:28,970 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 308 out of 363 [2024-11-10 14:34:28,972 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 329 transitions, 665 flow. Second operand has 3 states, 3 states have (on average 309.3333333333333) internal successors, (928), 3 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:34:28,972 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:34:28,972 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 308 of 363 [2024-11-10 14:34:28,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:34:29,216 INFO L124 PetriNetUnfolderBase]: 85/1356 cut-off events. [2024-11-10 14:34:29,217 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-10 14:34:29,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1541 conditions, 1356 events. 85/1356 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 8735 event pairs, 72 based on Foata normal form. 1/1244 useless extension candidates. Maximal degree in co-relation 1537. Up to 178 conditions per place. [2024-11-10 14:34:29,224 INFO L140 encePairwiseOnDemand]: 360/363 looper letters, 23 selfloop transitions, 2 changer transitions 0/330 dead transitions. [2024-11-10 14:34:29,224 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 330 transitions, 717 flow [2024-11-10 14:34:29,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:34:29,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:34:29,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 950 transitions. [2024-11-10 14:34:29,229 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8723599632690542 [2024-11-10 14:34:29,229 INFO L175 Difference]: Start difference. First operand has 330 places, 329 transitions, 665 flow. Second operand 3 states and 950 transitions. [2024-11-10 14:34:29,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 330 transitions, 717 flow [2024-11-10 14:34:29,232 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 331 places, 330 transitions, 717 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:34:29,237 INFO L231 Difference]: Finished difference. Result has 332 places, 330 transitions, 677 flow [2024-11-10 14:34:29,238 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=363, PETRI_DIFFERENCE_MINUEND_FLOW=665, PETRI_DIFFERENCE_MINUEND_PLACES=329, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=329, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=327, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=677, PETRI_PLACES=332, PETRI_TRANSITIONS=330} [2024-11-10 14:34:29,239 INFO L277 CegarLoopForPetriNet]: 333 programPoint places, -1 predicate places. [2024-11-10 14:34:29,239 INFO L471 AbstractCegarLoop]: Abstraction has has 332 places, 330 transitions, 677 flow [2024-11-10 14:34:29,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 309.3333333333333) internal successors, (928), 3 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:34:29,240 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:34:29,240 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:34:29,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 14:34:29,241 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-10 14:34:29,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:34:29,243 INFO L85 PathProgramCache]: Analyzing trace with hash -598254793, now seen corresponding path program 1 times [2024-11-10 14:34:29,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:34:29,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953020917] [2024-11-10 14:34:29,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:29,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:34:29,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:29,499 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:34:29,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:34:29,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953020917] [2024-11-10 14:34:29,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953020917] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:34:29,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [808661417] [2024-11-10 14:34:29,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:29,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:34:29,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:34:29,505 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) [2024-11-10 14:34:29,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 14:34:29,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:29,636 INFO L255 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 14:34:29,643 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:34:29,727 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:34:29,727 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 14:34:29,783 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:34:29,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [808661417] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 14:34:29,785 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 14:34:29,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-10 14:34:29,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176611610] [2024-11-10 14:34:29,785 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 14:34:29,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 14:34:29,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:34:29,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 14:34:29,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-10 14:34:29,829 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 363 [2024-11-10 14:34:29,833 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 330 transitions, 677 flow. Second operand has 10 states, 10 states have (on average 306.8) internal successors, (3068), 10 states have internal predecessors, (3068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:34:29,833 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:34:29,833 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 363 [2024-11-10 14:34:29,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:34:30,147 INFO L124 PetriNetUnfolderBase]: 85/1365 cut-off events. [2024-11-10 14:34:30,147 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-10 14:34:30,152 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1569 conditions, 1365 events. 85/1365 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 8617 event pairs, 72 based on Foata normal form. 2/1254 useless extension candidates. Maximal degree in co-relation 1563. Up to 178 conditions per place. [2024-11-10 14:34:30,156 INFO L140 encePairwiseOnDemand]: 357/363 looper letters, 27 selfloop transitions, 9 changer transitions 0/338 dead transitions. [2024-11-10 14:34:30,156 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 338 transitions, 767 flow [2024-11-10 14:34:30,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 14:34:30,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 14:34:30,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2783 transitions. [2024-11-10 14:34:30,163 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8518518518518519 [2024-11-10 14:34:30,163 INFO L175 Difference]: Start difference. First operand has 332 places, 330 transitions, 677 flow. Second operand 9 states and 2783 transitions. [2024-11-10 14:34:30,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 338 transitions, 767 flow [2024-11-10 14:34:30,165 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 339 places, 338 transitions, 765 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 14:34:30,170 INFO L231 Difference]: Finished difference. Result has 342 places, 336 transitions, 725 flow [2024-11-10 14:34:30,171 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=363, PETRI_DIFFERENCE_MINUEND_FLOW=675, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=330, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=324, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=725, PETRI_PLACES=342, PETRI_TRANSITIONS=336} [2024-11-10 14:34:30,173 INFO L277 CegarLoopForPetriNet]: 333 programPoint places, 9 predicate places. [2024-11-10 14:34:30,173 INFO L471 AbstractCegarLoop]: Abstraction has has 342 places, 336 transitions, 725 flow [2024-11-10 14:34:30,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 306.8) internal successors, (3068), 10 states have internal predecessors, (3068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:34:30,175 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:34:30,176 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:34:30,195 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 14:34:30,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:34:30,381 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-10 14:34:30,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:34:30,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1282604053, now seen corresponding path program 2 times [2024-11-10 14:34:30,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:34:30,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154629478] [2024-11-10 14:34:30,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:30,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:34:30,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:30,586 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:34:30,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:34:30,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154629478] [2024-11-10 14:34:30,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154629478] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:34:30,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1659560134] [2024-11-10 14:34:30,590 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 14:34:30,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:34:30,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:34:30,591 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) [2024-11-10 14:34:30,593 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 14:34:30,686 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 14:34:30,686 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 14:34:30,691 INFO L255 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-10 14:34:30,696 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:34:30,780 INFO L378 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 [2024-11-10 14:34:30,819 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-11-10 14:34:30,880 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 14:34:30,880 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2024-11-10 14:34:30,924 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 14:34:30,925 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2024-11-10 14:34:30,961 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-10 14:34:30,961 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 14:34:30,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1659560134] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:34:30,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 14:34:30,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-11-10 14:34:30,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916454861] [2024-11-10 14:34:30,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:34:30,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 14:34:30,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:34:30,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 14:34:30,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-10 14:34:31,263 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 255 out of 363 [2024-11-10 14:34:31,266 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 342 places, 336 transitions, 725 flow. Second operand has 8 states, 8 states have (on average 256.125) internal successors, (2049), 8 states have internal predecessors, (2049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:34:31,267 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:34:31,267 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 255 of 363 [2024-11-10 14:34:31,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:34:32,256 INFO L124 PetriNetUnfolderBase]: 1305/5034 cut-off events. [2024-11-10 14:34:32,257 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-11-10 14:34:32,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7659 conditions, 5034 events. 1305/5034 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 44108 event pairs, 1025 based on Foata normal form. 1/4581 useless extension candidates. Maximal degree in co-relation 7651. Up to 2436 conditions per place. [2024-11-10 14:34:32,282 INFO L140 encePairwiseOnDemand]: 351/363 looper letters, 127 selfloop transitions, 11 changer transitions 2/399 dead transitions. [2024-11-10 14:34:32,283 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 399 transitions, 1131 flow [2024-11-10 14:34:32,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 14:34:32,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-10 14:34:32,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2182 transitions. [2024-11-10 14:34:32,287 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7513774104683195 [2024-11-10 14:34:32,288 INFO L175 Difference]: Start difference. First operand has 342 places, 336 transitions, 725 flow. Second operand 8 states and 2182 transitions. [2024-11-10 14:34:32,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 399 transitions, 1131 flow [2024-11-10 14:34:32,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 348 places, 399 transitions, 1125 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-10 14:34:32,295 INFO L231 Difference]: Finished difference. Result has 353 places, 343 transitions, 786 flow [2024-11-10 14:34:32,296 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=363, PETRI_DIFFERENCE_MINUEND_FLOW=719, PETRI_DIFFERENCE_MINUEND_PLACES=341, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=336, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=326, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=786, PETRI_PLACES=353, PETRI_TRANSITIONS=343} [2024-11-10 14:34:32,297 INFO L277 CegarLoopForPetriNet]: 333 programPoint places, 20 predicate places. [2024-11-10 14:34:32,297 INFO L471 AbstractCegarLoop]: Abstraction has has 353 places, 343 transitions, 786 flow [2024-11-10 14:34:32,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 256.125) internal successors, (2049), 8 states have internal predecessors, (2049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:34:32,299 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:34:32,299 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:34:32,318 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-10 14:34:32,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-10 14:34:32,504 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-10 14:34:32,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:34:32,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1296091615, now seen corresponding path program 1 times [2024-11-10 14:34:32,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:34:32,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222299669] [2024-11-10 14:34:32,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:32,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:34:32,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:32,750 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-10 14:34:32,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:34:32,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222299669] [2024-11-10 14:34:32,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222299669] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:34:32,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1462883448] [2024-11-10 14:34:32,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:32,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:34:32,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:34:32,754 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) [2024-11-10 14:34:32,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-10 14:34:32,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:32,870 INFO L255 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-10 14:34:32,873 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:34:32,917 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-10 14:34:32,917 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 14:34:33,011 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-10 14:34:33,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1462883448] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 14:34:33,011 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 14:34:33,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-10 14:34:33,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696749945] [2024-11-10 14:34:33,012 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 14:34:33,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-10 14:34:33,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:34:33,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-10 14:34:33,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-10 14:34:33,045 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 363 [2024-11-10 14:34:33,051 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 353 places, 343 transitions, 786 flow. Second operand has 18 states, 18 states have (on average 306.94444444444446) internal successors, (5525), 18 states have internal predecessors, (5525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:34:33,052 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:34:33,052 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 363 [2024-11-10 14:34:33,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:34:33,492 INFO L124 PetriNetUnfolderBase]: 88/1376 cut-off events. [2024-11-10 14:34:33,493 INFO L125 PetriNetUnfolderBase]: For 63/67 co-relation queries the response was YES. [2024-11-10 14:34:33,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1683 conditions, 1376 events. 88/1376 cut-off events. For 63/67 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 8850 event pairs, 74 based on Foata normal form. 4/1269 useless extension candidates. Maximal degree in co-relation 1669. Up to 175 conditions per place. [2024-11-10 14:34:33,503 INFO L140 encePairwiseOnDemand]: 357/363 looper letters, 31 selfloop transitions, 21 changer transitions 0/361 dead transitions. [2024-11-10 14:34:33,503 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 373 places, 361 transitions, 978 flow [2024-11-10 14:34:33,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-10 14:34:33,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-10 14:34:33,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 6461 transitions. [2024-11-10 14:34:33,515 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8475665748393021 [2024-11-10 14:34:33,515 INFO L175 Difference]: Start difference. First operand has 353 places, 343 transitions, 786 flow. Second operand 21 states and 6461 transitions. [2024-11-10 14:34:33,516 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 373 places, 361 transitions, 978 flow [2024-11-10 14:34:33,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 371 places, 361 transitions, 971 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 14:34:33,526 INFO L231 Difference]: Finished difference. Result has 376 places, 356 transitions, 909 flow [2024-11-10 14:34:33,527 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=363, PETRI_DIFFERENCE_MINUEND_FLOW=779, PETRI_DIFFERENCE_MINUEND_PLACES=351, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=343, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=332, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=909, PETRI_PLACES=376, PETRI_TRANSITIONS=356} [2024-11-10 14:34:33,527 INFO L277 CegarLoopForPetriNet]: 333 programPoint places, 43 predicate places. [2024-11-10 14:34:33,528 INFO L471 AbstractCegarLoop]: Abstraction has has 376 places, 356 transitions, 909 flow [2024-11-10 14:34:33,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 306.94444444444446) internal successors, (5525), 18 states have internal predecessors, (5525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:34:33,531 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:34:33,532 INFO L204 CegarLoopForPetriNet]: trace histogram [8, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:34:33,548 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-10 14:34:33,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:34:33,736 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-10 14:34:33,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:34:33,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1479331747, now seen corresponding path program 2 times [2024-11-10 14:34:33,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:34:33,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119244449] [2024-11-10 14:34:33,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:33,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:34:33,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:34,183 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-10 14:34:34,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:34:34,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119244449] [2024-11-10 14:34:34,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119244449] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:34:34,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [184537836] [2024-11-10 14:34:34,184 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 14:34:34,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:34:34,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:34:34,189 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) [2024-11-10 14:34:34,190 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-10 14:34:34,315 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 14:34:34,315 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 14:34:34,317 INFO L255 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-10 14:34:34,328 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:34:34,352 INFO L378 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 [2024-11-10 14:34:34,374 INFO L378 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 [2024-11-10 14:34:34,412 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 14:34:34,413 INFO L378 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 [2024-11-10 14:34:34,460 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 14:34:34,461 INFO L378 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 [2024-11-10 14:34:34,502 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2024-11-10 14:34:34,502 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 14:34:34,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [184537836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:34:34,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 14:34:34,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-11-10 14:34:34,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121969381] [2024-11-10 14:34:34,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:34:34,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:34:34,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:34:34,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:34:34,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-10 14:34:34,870 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 256 out of 363 [2024-11-10 14:34:34,872 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 376 places, 356 transitions, 909 flow. Second operand has 6 states, 6 states have (on average 258.6666666666667) internal successors, (1552), 6 states have internal predecessors, (1552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:34:34,873 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:34:34,873 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 256 of 363 [2024-11-10 14:34:34,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:34:35,961 INFO L124 PetriNetUnfolderBase]: 1363/5316 cut-off events. [2024-11-10 14:34:35,962 INFO L125 PetriNetUnfolderBase]: For 294/294 co-relation queries the response was YES. [2024-11-10 14:34:35,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8500 conditions, 5316 events. 1363/5316 cut-off events. For 294/294 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 47018 event pairs, 1033 based on Foata normal form. 29/4907 useless extension candidates. Maximal degree in co-relation 8482. Up to 2519 conditions per place. [2024-11-10 14:34:35,995 INFO L140 encePairwiseOnDemand]: 336/363 looper letters, 107 selfloop transitions, 92 changer transitions 0/472 dead transitions. [2024-11-10 14:34:35,995 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 381 places, 472 transitions, 1561 flow [2024-11-10 14:34:35,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:34:35,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:34:35,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1730 transitions. [2024-11-10 14:34:36,000 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7943067033976124 [2024-11-10 14:34:36,000 INFO L175 Difference]: Start difference. First operand has 376 places, 356 transitions, 909 flow. Second operand 6 states and 1730 transitions. [2024-11-10 14:34:36,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 381 places, 472 transitions, 1561 flow [2024-11-10 14:34:36,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 375 places, 472 transitions, 1537 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-10 14:34:36,012 INFO L231 Difference]: Finished difference. Result has 380 places, 440 transitions, 1493 flow [2024-11-10 14:34:36,013 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=363, PETRI_DIFFERENCE_MINUEND_FLOW=885, PETRI_DIFFERENCE_MINUEND_PLACES=370, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=356, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=324, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1493, PETRI_PLACES=380, PETRI_TRANSITIONS=440} [2024-11-10 14:34:36,013 INFO L277 CegarLoopForPetriNet]: 333 programPoint places, 47 predicate places. [2024-11-10 14:34:36,013 INFO L471 AbstractCegarLoop]: Abstraction has has 380 places, 440 transitions, 1493 flow [2024-11-10 14:34:36,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 258.6666666666667) internal successors, (1552), 6 states have internal predecessors, (1552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:34:36,015 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:34:36,015 INFO L204 CegarLoopForPetriNet]: trace histogram [8, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:34:36,033 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-10 14:34:36,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:34:36,216 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-10 14:34:36,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:34:36,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1385355220, now seen corresponding path program 1 times [2024-11-10 14:34:36,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:34:36,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037674380] [2024-11-10 14:34:36,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:36,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:34:36,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:36,678 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 14:34:36,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:34:36,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037674380] [2024-11-10 14:34:36,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037674380] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:34:36,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1735187664] [2024-11-10 14:34:36,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:36,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:34:36,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:34:36,681 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) [2024-11-10 14:34:36,682 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-10 14:34:36,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:36,807 INFO L255 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-10 14:34:36,810 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:34:36,896 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 14:34:36,896 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 14:34:37,104 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 14:34:37,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1735187664] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 14:34:37,105 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 14:34:37,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-10 14:34:37,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902851126] [2024-11-10 14:34:37,106 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 14:34:37,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-10 14:34:37,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:34:37,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-10 14:34:37,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-10 14:34:37,190 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 363 [2024-11-10 14:34:37,197 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 440 transitions, 1493 flow. Second operand has 23 states, 23 states have (on average 307.04347826086956) internal successors, (7062), 23 states have internal predecessors, (7062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:34:37,198 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:34:37,198 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 363 [2024-11-10 14:34:37,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:34:37,940 INFO L124 PetriNetUnfolderBase]: 222/1997 cut-off events. [2024-11-10 14:34:37,940 INFO L125 PetriNetUnfolderBase]: For 523/599 co-relation queries the response was YES. [2024-11-10 14:34:37,948 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3097 conditions, 1997 events. 222/1997 cut-off events. For 523/599 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 14641 event pairs, 72 based on Foata normal form. 3/1859 useless extension candidates. Maximal degree in co-relation 3074. Up to 232 conditions per place. [2024-11-10 14:34:37,953 INFO L140 encePairwiseOnDemand]: 357/363 looper letters, 34 selfloop transitions, 30 changer transitions 0/457 dead transitions. [2024-11-10 14:34:37,953 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 409 places, 457 transitions, 1743 flow [2024-11-10 14:34:37,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-10 14:34:37,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-10 14:34:37,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 9217 transitions. [2024-11-10 14:34:37,976 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8463728191000919 [2024-11-10 14:34:37,976 INFO L175 Difference]: Start difference. First operand has 380 places, 440 transitions, 1493 flow. Second operand 30 states and 9217 transitions. [2024-11-10 14:34:37,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 409 places, 457 transitions, 1743 flow [2024-11-10 14:34:37,986 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 409 places, 457 transitions, 1725 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-11-10 14:34:37,992 INFO L231 Difference]: Finished difference. Result has 413 places, 450 transitions, 1627 flow [2024-11-10 14:34:37,992 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=363, PETRI_DIFFERENCE_MINUEND_FLOW=1475, PETRI_DIFFERENCE_MINUEND_PLACES=380, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=417, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1627, PETRI_PLACES=413, PETRI_TRANSITIONS=450} [2024-11-10 14:34:37,993 INFO L277 CegarLoopForPetriNet]: 333 programPoint places, 80 predicate places. [2024-11-10 14:34:37,993 INFO L471 AbstractCegarLoop]: Abstraction has has 413 places, 450 transitions, 1627 flow [2024-11-10 14:34:37,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 307.04347826086956) internal successors, (7062), 23 states have internal predecessors, (7062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:34:37,996 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:34:37,997 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:34:38,013 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-10 14:34:38,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:34:38,198 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-10 14:34:38,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:34:38,198 INFO L85 PathProgramCache]: Analyzing trace with hash -790277607, now seen corresponding path program 2 times [2024-11-10 14:34:38,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:34:38,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959314106] [2024-11-10 14:34:38,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:38,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:34:38,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 14:34:38,253 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 14:34:38,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 14:34:38,326 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 14:34:38,326 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-10 14:34:38,328 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2024-11-10 14:34:38,331 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2024-11-10 14:34:38,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2024-11-10 14:34:38,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2024-11-10 14:34:38,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2024-11-10 14:34:38,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2024-11-10 14:34:38,333 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2024-11-10 14:34:38,333 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2024-11-10 14:34:38,333 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2024-11-10 14:34:38,333 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2024-11-10 14:34:38,333 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2024-11-10 14:34:38,333 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2024-11-10 14:34:38,334 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2024-11-10 14:34:38,334 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2024-11-10 14:34:38,334 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2024-11-10 14:34:38,334 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2024-11-10 14:34:38,334 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2024-11-10 14:34:38,335 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2024-11-10 14:34:38,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 14:34:38,335 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1] [2024-11-10 14:34:38,338 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-10 14:34:38,340 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-10 14:34:38,415 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-10 14:34:38,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 441 places, 484 transitions, 984 flow [2024-11-10 14:34:38,569 INFO L124 PetriNetUnfolderBase]: 80/781 cut-off events. [2024-11-10 14:34:38,569 INFO L125 PetriNetUnfolderBase]: For 6/7 co-relation queries the response was YES. [2024-11-10 14:34:38,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 793 conditions, 781 events. 80/781 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 3484 event pairs, 0 based on Foata normal form. 0/665 useless extension candidates. Maximal degree in co-relation 499. Up to 12 conditions per place. [2024-11-10 14:34:38,581 INFO L82 GeneralOperation]: Start removeDead. Operand has 441 places, 484 transitions, 984 flow [2024-11-10 14:34:38,593 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 441 places, 484 transitions, 984 flow [2024-11-10 14:34:38,594 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 14:34:38,594 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@6883370a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 14:34:38,595 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-10 14:34:38,607 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 14:34:38,607 INFO L124 PetriNetUnfolderBase]: 8/141 cut-off events. [2024-11-10 14:34:38,607 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:34:38,607 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:34:38,607 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:34:38,607 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-10 14:34:38,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:34:38,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1386786818, now seen corresponding path program 1 times [2024-11-10 14:34:38,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:34:38,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973477577] [2024-11-10 14:34:38,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:38,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:34:38,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:38,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:34:38,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:34:38,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973477577] [2024-11-10 14:34:38,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973477577] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:34:38,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:34:38,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:34:38,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551867531] [2024-11-10 14:34:38,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:34:38,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 14:34:38,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:34:38,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 14:34:38,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 14:34:38,637 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 411 out of 484 [2024-11-10 14:34:38,638 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 484 transitions, 984 flow. Second operand has 2 states, 2 states have (on average 411.5) internal successors, (823), 2 states have internal predecessors, (823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:34:38,638 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:34:38,638 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 411 of 484 [2024-11-10 14:34:38,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:34:40,539 INFO L124 PetriNetUnfolderBase]: 1411/11298 cut-off events. [2024-11-10 14:34:40,539 INFO L125 PetriNetUnfolderBase]: For 89/89 co-relation queries the response was YES. [2024-11-10 14:34:40,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13493 conditions, 11298 events. 1411/11298 cut-off events. For 89/89 co-relation queries the response was YES. Maximal size of possible extension queue 249. Compared 133332 event pairs, 1304 based on Foata normal form. 3521/13979 useless extension candidates. Maximal degree in co-relation 11824. Up to 2143 conditions per place. [2024-11-10 14:34:40,634 INFO L140 encePairwiseOnDemand]: 442/484 looper letters, 28 selfloop transitions, 0 changer transitions 1/436 dead transitions. [2024-11-10 14:34:40,634 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 436 places, 436 transitions, 944 flow [2024-11-10 14:34:40,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 14:34:40,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-10 14:34:40,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 892 transitions. [2024-11-10 14:34:40,637 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9214876033057852 [2024-11-10 14:34:40,637 INFO L175 Difference]: Start difference. First operand has 441 places, 484 transitions, 984 flow. Second operand 2 states and 892 transitions. [2024-11-10 14:34:40,637 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 436 places, 436 transitions, 944 flow [2024-11-10 14:34:40,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 436 places, 436 transitions, 944 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:34:40,645 INFO L231 Difference]: Finished difference. Result has 436 places, 435 transitions, 886 flow [2024-11-10 14:34:40,646 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=888, PETRI_DIFFERENCE_MINUEND_PLACES=435, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=436, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=436, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=886, PETRI_PLACES=436, PETRI_TRANSITIONS=435} [2024-11-10 14:34:40,649 INFO L277 CegarLoopForPetriNet]: 441 programPoint places, -5 predicate places. [2024-11-10 14:34:40,649 INFO L471 AbstractCegarLoop]: Abstraction has has 436 places, 435 transitions, 886 flow [2024-11-10 14:34:40,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 411.5) internal successors, (823), 2 states have internal predecessors, (823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:34:40,649 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:34:40,650 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:34:40,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 14:34:40,650 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-10 14:34:40,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:34:40,651 INFO L85 PathProgramCache]: Analyzing trace with hash -462333464, now seen corresponding path program 1 times [2024-11-10 14:34:40,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:34:40,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807343965] [2024-11-10 14:34:40,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:40,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:34:40,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:40,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:34:40,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:34:40,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807343965] [2024-11-10 14:34:40,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807343965] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:34:40,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:34:40,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 14:34:40,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931104277] [2024-11-10 14:34:40,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:34:40,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:34:40,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:34:40,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:34:40,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:34:40,715 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 405 out of 484 [2024-11-10 14:34:40,716 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 436 places, 435 transitions, 886 flow. Second operand has 3 states, 3 states have (on average 406.3333333333333) internal successors, (1219), 3 states have internal predecessors, (1219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:34:40,716 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:34:40,717 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 405 of 484 [2024-11-10 14:34:40,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:34:42,646 INFO L124 PetriNetUnfolderBase]: 1580/12281 cut-off events. [2024-11-10 14:34:42,647 INFO L125 PetriNetUnfolderBase]: For 89/89 co-relation queries the response was YES. [2024-11-10 14:34:42,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14743 conditions, 12281 events. 1580/12281 cut-off events. For 89/89 co-relation queries the response was YES. Maximal size of possible extension queue 271. Compared 146982 event pairs, 1464 based on Foata normal form. 1/11381 useless extension candidates. Maximal degree in co-relation 14738. Up to 2408 conditions per place. [2024-11-10 14:34:42,740 INFO L140 encePairwiseOnDemand]: 481/484 looper letters, 33 selfloop transitions, 2 changer transitions 0/436 dead transitions. [2024-11-10 14:34:42,741 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 437 places, 436 transitions, 958 flow [2024-11-10 14:34:42,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:34:42,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:34:42,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1251 transitions. [2024-11-10 14:34:42,744 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8615702479338843 [2024-11-10 14:34:42,744 INFO L175 Difference]: Start difference. First operand has 436 places, 435 transitions, 886 flow. Second operand 3 states and 1251 transitions. [2024-11-10 14:34:42,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 437 places, 436 transitions, 958 flow [2024-11-10 14:34:42,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 436 transitions, 958 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:34:42,751 INFO L231 Difference]: Finished difference. Result has 438 places, 436 transitions, 898 flow [2024-11-10 14:34:42,752 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=886, PETRI_DIFFERENCE_MINUEND_PLACES=435, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=433, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=898, PETRI_PLACES=438, PETRI_TRANSITIONS=436} [2024-11-10 14:34:42,753 INFO L277 CegarLoopForPetriNet]: 441 programPoint places, -3 predicate places. [2024-11-10 14:34:42,753 INFO L471 AbstractCegarLoop]: Abstraction has has 438 places, 436 transitions, 898 flow [2024-11-10 14:34:42,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 406.3333333333333) internal successors, (1219), 3 states have internal predecessors, (1219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:34:42,754 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:34:42,754 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:34:42,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 14:34:42,754 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-10 14:34:42,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:34:42,755 INFO L85 PathProgramCache]: Analyzing trace with hash 143243959, now seen corresponding path program 1 times [2024-11-10 14:34:42,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:34:42,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646324477] [2024-11-10 14:34:42,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:42,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:34:42,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:42,834 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:34:42,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:34:42,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646324477] [2024-11-10 14:34:42,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646324477] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:34:42,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [431192846] [2024-11-10 14:34:42,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:42,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:34:42,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:34:42,840 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) [2024-11-10 14:34:42,841 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-10 14:34:42,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:42,945 INFO L255 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 14:34:42,947 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:34:42,970 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:34:42,970 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 14:34:43,000 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:34:43,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [431192846] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 14:34:43,001 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 14:34:43,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-10 14:34:43,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536567855] [2024-11-10 14:34:43,002 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 14:34:43,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 14:34:43,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:34:43,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 14:34:43,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-10 14:34:43,025 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 402 out of 484 [2024-11-10 14:34:43,028 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 436 transitions, 898 flow. Second operand has 10 states, 10 states have (on average 403.8) internal successors, (4038), 10 states have internal predecessors, (4038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:34:43,029 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:34:43,029 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 402 of 484 [2024-11-10 14:34:43,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:34:44,999 INFO L124 PetriNetUnfolderBase]: 1580/12290 cut-off events. [2024-11-10 14:34:44,999 INFO L125 PetriNetUnfolderBase]: For 93/93 co-relation queries the response was YES. [2024-11-10 14:34:45,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14771 conditions, 12290 events. 1580/12290 cut-off events. For 93/93 co-relation queries the response was YES. Maximal size of possible extension queue 271. Compared 147107 event pairs, 1464 based on Foata normal form. 2/11391 useless extension candidates. Maximal degree in co-relation 14764. Up to 2408 conditions per place. [2024-11-10 14:34:45,100 INFO L140 encePairwiseOnDemand]: 478/484 looper letters, 37 selfloop transitions, 9 changer transitions 0/444 dead transitions. [2024-11-10 14:34:45,100 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 446 places, 444 transitions, 1008 flow [2024-11-10 14:34:45,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 14:34:45,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 14:34:45,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3666 transitions. [2024-11-10 14:34:45,119 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8415977961432507 [2024-11-10 14:34:45,119 INFO L175 Difference]: Start difference. First operand has 438 places, 436 transitions, 898 flow. Second operand 9 states and 3666 transitions. [2024-11-10 14:34:45,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 446 places, 444 transitions, 1008 flow [2024-11-10 14:34:45,122 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 445 places, 444 transitions, 1006 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 14:34:45,127 INFO L231 Difference]: Finished difference. Result has 448 places, 442 transitions, 946 flow [2024-11-10 14:34:45,128 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=896, PETRI_DIFFERENCE_MINUEND_PLACES=437, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=436, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=430, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=946, PETRI_PLACES=448, PETRI_TRANSITIONS=442} [2024-11-10 14:34:45,129 INFO L277 CegarLoopForPetriNet]: 441 programPoint places, 7 predicate places. [2024-11-10 14:34:45,129 INFO L471 AbstractCegarLoop]: Abstraction has has 448 places, 442 transitions, 946 flow [2024-11-10 14:34:45,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 403.8) internal successors, (4038), 10 states have internal predecessors, (4038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:34:45,131 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:34:45,131 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:34:45,149 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-10 14:34:45,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:34:45,336 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-10 14:34:45,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:34:45,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1786861931, now seen corresponding path program 2 times [2024-11-10 14:34:45,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:34:45,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491405691] [2024-11-10 14:34:45,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:45,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:34:45,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:45,472 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:34:45,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:34:45,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491405691] [2024-11-10 14:34:45,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491405691] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:34:45,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1051121417] [2024-11-10 14:34:45,473 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 14:34:45,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:34:45,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:34:45,475 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) [2024-11-10 14:34:45,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-10 14:34:45,584 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 14:34:45,584 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 14:34:45,586 INFO L255 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-10 14:34:45,588 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:34:45,646 INFO L378 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 [2024-11-10 14:34:45,669 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-11-10 14:34:45,703 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 14:34:45,704 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2024-11-10 14:34:45,748 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 14:34:45,748 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2024-11-10 14:34:45,779 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-10 14:34:45,779 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 14:34:45,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1051121417] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:34:45,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 14:34:45,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-11-10 14:34:45,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462682302] [2024-11-10 14:34:45,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:34:45,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 14:34:45,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:34:45,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 14:34:45,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-10 14:34:46,144 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 332 out of 484 [2024-11-10 14:34:46,146 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 448 places, 442 transitions, 946 flow. Second operand has 8 states, 8 states have (on average 333.125) internal successors, (2665), 8 states have internal predecessors, (2665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:34:46,146 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:34:46,146 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 332 of 484 [2024-11-10 14:34:46,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:35:14,604 INFO L124 PetriNetUnfolderBase]: 77255/189475 cut-off events. [2024-11-10 14:35:14,604 INFO L125 PetriNetUnfolderBase]: For 289/289 co-relation queries the response was YES. [2024-11-10 14:35:15,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 305272 conditions, 189475 events. 77255/189475 cut-off events. For 289/289 co-relation queries the response was YES. Maximal size of possible extension queue 3762. Compared 2554153 event pairs, 66469 based on Foata normal form. 1/175052 useless extension candidates. Maximal degree in co-relation 305263. Up to 110330 conditions per place. [2024-11-10 14:35:16,092 INFO L140 encePairwiseOnDemand]: 472/484 looper letters, 188 selfloop transitions, 11 changer transitions 0/534 dead transitions. [2024-11-10 14:35:16,092 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 455 places, 534 transitions, 1528 flow [2024-11-10 14:35:16,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 14:35:16,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-10 14:35:16,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2857 transitions. [2024-11-10 14:35:16,099 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7378615702479339 [2024-11-10 14:35:16,099 INFO L175 Difference]: Start difference. First operand has 448 places, 442 transitions, 946 flow. Second operand 8 states and 2857 transitions. [2024-11-10 14:35:16,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 455 places, 534 transitions, 1528 flow [2024-11-10 14:35:16,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 454 places, 534 transitions, 1522 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-10 14:35:16,109 INFO L231 Difference]: Finished difference. Result has 459 places, 450 transitions, 1011 flow [2024-11-10 14:35:16,109 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=940, PETRI_DIFFERENCE_MINUEND_PLACES=447, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=442, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=432, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1011, PETRI_PLACES=459, PETRI_TRANSITIONS=450} [2024-11-10 14:35:16,110 INFO L277 CegarLoopForPetriNet]: 441 programPoint places, 18 predicate places. [2024-11-10 14:35:16,110 INFO L471 AbstractCegarLoop]: Abstraction has has 459 places, 450 transitions, 1011 flow [2024-11-10 14:35:16,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 333.125) internal successors, (2665), 8 states have internal predecessors, (2665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:35:16,111 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:35:16,112 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:35:16,129 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-10 14:35:16,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:35:16,316 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-10 14:35:16,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:35:16,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1461445126, now seen corresponding path program 1 times [2024-11-10 14:35:16,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:35:16,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195952059] [2024-11-10 14:35:16,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:35:16,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:35:16,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat