./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_75-tricky_address2_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 3289d67d 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_75-tricky_address2_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 3c0354ee6107efc04d15102ecf9eef73430e38e14b70f16419cd07cd733fd0df --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 23:41:05,882 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 23:41:05,962 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-16 23:41:05,967 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 23:41:05,968 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 23:41:05,992 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 23:41:05,992 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 23:41:05,992 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 23:41:05,993 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 23:41:05,994 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 23:41:05,994 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 23:41:05,995 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 23:41:05,995 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 23:41:05,995 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 23:41:05,997 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 23:41:05,997 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 23:41:05,997 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 23:41:05,997 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 23:41:05,998 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 23:41:05,998 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 23:41:06,000 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 23:41:06,001 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 23:41:06,001 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-16 23:41:06,001 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 23:41:06,001 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-16 23:41:06,001 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 23:41:06,002 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 23:41:06,002 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 23:41:06,002 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 23:41:06,002 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 23:41:06,002 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 23:41:06,002 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:41:06,003 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 23:41:06,003 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 23:41:06,003 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 23:41:06,003 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 23:41:06,003 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 23:41:06,003 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 23:41:06,004 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 23:41:06,004 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 23:41:06,004 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 23:41:06,006 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3c0354ee6107efc04d15102ecf9eef73430e38e14b70f16419cd07cd733fd0df [2024-11-16 23:41:06,206 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 23:41:06,233 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 23:41:06,236 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 23:41:06,236 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 23:41:06,237 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 23:41:06,238 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_75-tricky_address2_racefree.i [2024-11-16 23:41:07,537 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 23:41:07,845 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 23:41:07,846 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_75-tricky_address2_racefree.i [2024-11-16 23:41:07,869 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ff49d7d4/e02dee1d91064a07932329fe74386a82/FLAG712c7422e [2024-11-16 23:41:08,118 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ff49d7d4/e02dee1d91064a07932329fe74386a82 [2024-11-16 23:41:08,121 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 23:41:08,122 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 23:41:08,123 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 23:41:08,123 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 23:41:08,129 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 23:41:08,130 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:41:08" (1/1) ... [2024-11-16 23:41:08,131 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@335840ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:08, skipping insertion in model container [2024-11-16 23:41:08,131 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:41:08" (1/1) ... [2024-11-16 23:41:08,174 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 23:41:08,502 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:41:08,553 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 23:41:08,601 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:41:08,647 INFO L204 MainTranslator]: Completed translation [2024-11-16 23:41:08,647 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:08 WrapperNode [2024-11-16 23:41:08,647 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 23:41:08,648 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 23:41:08,648 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 23:41:08,648 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 23:41:08,654 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:08" (1/1) ... [2024-11-16 23:41:08,669 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:08" (1/1) ... [2024-11-16 23:41:08,704 INFO L138 Inliner]: procedures = 271, calls = 110, calls flagged for inlining = 7, calls inlined = 8, statements flattened = 332 [2024-11-16 23:41:08,705 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 23:41:08,705 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 23:41:08,705 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 23:41:08,705 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 23:41:08,712 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:08" (1/1) ... [2024-11-16 23:41:08,713 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:08" (1/1) ... [2024-11-16 23:41:08,717 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:08" (1/1) ... [2024-11-16 23:41:08,717 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:08" (1/1) ... [2024-11-16 23:41:08,733 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:08" (1/1) ... [2024-11-16 23:41:08,734 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:08" (1/1) ... [2024-11-16 23:41:08,736 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:08" (1/1) ... [2024-11-16 23:41:08,737 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:08" (1/1) ... [2024-11-16 23:41:08,740 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 23:41:08,740 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 23:41:08,741 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 23:41:08,741 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 23:41:08,741 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:08" (1/1) ... [2024-11-16 23:41:08,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:41:08,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:41:08,769 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) [2024-11-16 23:41:08,771 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 [2024-11-16 23:41:08,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 23:41:08,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 23:41:08,826 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-16 23:41:08,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-16 23:41:08,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-16 23:41:08,826 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-16 23:41:08,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 23:41:08,827 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-16 23:41:08,827 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-16 23:41:08,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-16 23:41:08,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 23:41:08,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 23:41:08,829 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-16 23:41:08,941 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 23:41:08,943 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 23:41:09,287 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L953: havoc main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset; [2024-11-16 23:41:09,287 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L953-1: SUMMARY for call ULTIMATE.dealloc(main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset); srcloc: null [2024-11-16 23:41:09,390 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 23:41:09,390 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 23:41:09,434 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 23:41:09,436 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 23:41:09,436 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:41:09 BoogieIcfgContainer [2024-11-16 23:41:09,436 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 23:41:09,438 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 23:41:09,438 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 23:41:09,441 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 23:41:09,441 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:41:08" (1/3) ... [2024-11-16 23:41:09,442 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39df6def and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:41:09, skipping insertion in model container [2024-11-16 23:41:09,442 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:08" (2/3) ... [2024-11-16 23:41:09,442 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39df6def and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:41:09, skipping insertion in model container [2024-11-16 23:41:09,442 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:41:09" (3/3) ... [2024-11-16 23:41:09,444 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_75-tricky_address2_racefree.i [2024-11-16 23:41:09,455 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 23:41:09,456 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-16 23:41:09,456 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 23:41:09,529 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-16 23:41:09,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 330 places, 360 transitions, 727 flow [2024-11-16 23:41:09,672 INFO L124 PetriNetUnfolderBase]: 48/494 cut-off events. [2024-11-16 23:41:09,673 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-16 23:41:09,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 499 conditions, 494 events. 48/494 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1755 event pairs, 0 based on Foata normal form. 0/424 useless extension candidates. Maximal degree in co-relation 253. Up to 8 conditions per place. [2024-11-16 23:41:09,683 INFO L82 GeneralOperation]: Start removeDead. Operand has 330 places, 360 transitions, 727 flow [2024-11-16 23:41:09,690 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 330 places, 360 transitions, 727 flow [2024-11-16 23:41:09,700 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:41:09,707 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;@3a2ede00, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:41:09,709 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-16 23:41:09,733 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:41:09,734 INFO L124 PetriNetUnfolderBase]: 8/141 cut-off events. [2024-11-16 23:41:09,734 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:41:09,734 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:41:09,735 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] [2024-11-16 23:41:09,736 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)] === [2024-11-16 23:41:09,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:41:09,740 INFO L85 PathProgramCache]: Analyzing trace with hash 2020062356, now seen corresponding path program 1 times [2024-11-16 23:41:09,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:41:09,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423066223] [2024-11-16 23:41:09,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:41:09,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:41:09,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:41:10,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:41:10,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:41:10,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423066223] [2024-11-16 23:41:10,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423066223] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:41:10,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:41:10,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:41:10,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231272592] [2024-11-16 23:41:10,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:41:10,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 23:41:10,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:41:10,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 23:41:10,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 23:41:10,055 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 311 out of 360 [2024-11-16 23:41:10,061 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 360 transitions, 727 flow. Second operand has 2 states, 2 states have (on average 311.5) internal successors, (623), 2 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:41:10,061 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:41:10,061 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 311 of 360 [2024-11-16 23:41:10,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:41:10,356 INFO L124 PetriNetUnfolderBase]: 77/1341 cut-off events. [2024-11-16 23:41:10,357 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-16 23:41:10,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1501 conditions, 1341 events. 77/1341 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 8497 event pairs, 64 based on Foata normal form. 256/1483 useless extension candidates. Maximal degree in co-relation 1262. Up to 155 conditions per place. [2024-11-16 23:41:10,368 INFO L140 encePairwiseOnDemand]: 331/360 looper letters, 18 selfloop transitions, 0 changer transitions 1/327 dead transitions. [2024-11-16 23:41:10,368 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 327 transitions, 697 flow [2024-11-16 23:41:10,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 23:41:10,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-16 23:41:10,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 669 transitions. [2024-11-16 23:41:10,385 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9291666666666667 [2024-11-16 23:41:10,388 INFO L175 Difference]: Start difference. First operand has 330 places, 360 transitions, 727 flow. Second operand 2 states and 669 transitions. [2024-11-16 23:41:10,389 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 327 transitions, 697 flow [2024-11-16 23:41:10,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 327 places, 327 transitions, 697 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:41:10,396 INFO L231 Difference]: Finished difference. Result has 327 places, 326 transitions, 659 flow [2024-11-16 23:41:10,398 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=360, PETRI_DIFFERENCE_MINUEND_FLOW=661, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=327, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=659, PETRI_PLACES=327, PETRI_TRANSITIONS=326} [2024-11-16 23:41:10,402 INFO L277 CegarLoopForPetriNet]: 330 programPoint places, -3 predicate places. [2024-11-16 23:41:10,402 INFO L471 AbstractCegarLoop]: Abstraction has has 327 places, 326 transitions, 659 flow [2024-11-16 23:41:10,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 311.5) internal successors, (623), 2 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:41:10,403 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:41:10,403 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] [2024-11-16 23:41:10,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 23:41:10,404 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)] === [2024-11-16 23:41:10,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:41:10,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1665758343, now seen corresponding path program 1 times [2024-11-16 23:41:10,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:41:10,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344744988] [2024-11-16 23:41:10,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:41:10,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:41:10,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:41:10,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:41:10,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:41:10,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344744988] [2024-11-16 23:41:10,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344744988] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:41:10,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:41:10,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 23:41:10,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525186406] [2024-11-16 23:41:10,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:41:10,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:41:10,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:41:10,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:41:10,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:41:10,608 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 360 [2024-11-16 23:41:10,609 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 326 transitions, 659 flow. Second operand has 3 states, 3 states have (on average 306.3333333333333) internal successors, (919), 3 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:41:10,610 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:41:10,610 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 360 [2024-11-16 23:41:10,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:41:10,785 INFO L124 PetriNetUnfolderBase]: 85/1353 cut-off events. [2024-11-16 23:41:10,785 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-16 23:41:10,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1538 conditions, 1353 events. 85/1353 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 8694 event pairs, 72 based on Foata normal form. 1/1242 useless extension candidates. Maximal degree in co-relation 1534. Up to 178 conditions per place. [2024-11-16 23:41:10,792 INFO L140 encePairwiseOnDemand]: 357/360 looper letters, 23 selfloop transitions, 2 changer transitions 0/327 dead transitions. [2024-11-16 23:41:10,792 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 327 transitions, 711 flow [2024-11-16 23:41:10,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:41:10,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:41:10,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 941 transitions. [2024-11-16 23:41:10,794 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8712962962962963 [2024-11-16 23:41:10,794 INFO L175 Difference]: Start difference. First operand has 327 places, 326 transitions, 659 flow. Second operand 3 states and 941 transitions. [2024-11-16 23:41:10,794 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 327 transitions, 711 flow [2024-11-16 23:41:10,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 327 transitions, 711 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:41:10,801 INFO L231 Difference]: Finished difference. Result has 329 places, 327 transitions, 671 flow [2024-11-16 23:41:10,802 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=360, PETRI_DIFFERENCE_MINUEND_FLOW=659, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=326, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=324, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=671, PETRI_PLACES=329, PETRI_TRANSITIONS=327} [2024-11-16 23:41:10,802 INFO L277 CegarLoopForPetriNet]: 330 programPoint places, -1 predicate places. [2024-11-16 23:41:10,802 INFO L471 AbstractCegarLoop]: Abstraction has has 329 places, 327 transitions, 671 flow [2024-11-16 23:41:10,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 306.3333333333333) internal successors, (919), 3 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:41:10,805 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:41:10,805 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] [2024-11-16 23:41:10,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 23:41:10,805 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)] === [2024-11-16 23:41:10,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:41:10,807 INFO L85 PathProgramCache]: Analyzing trace with hash 2132273037, now seen corresponding path program 1 times [2024-11-16 23:41:10,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:41:10,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544531909] [2024-11-16 23:41:10,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:41:10,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:41:10,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:41:10,984 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:41:10,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:41:10,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544531909] [2024-11-16 23:41:10,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544531909] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:41:10,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1604584690] [2024-11-16 23:41:10,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:41:10,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:41:10,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:41:10,987 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) [2024-11-16 23:41:10,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 23:41:11,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:41:11,084 INFO L255 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-16 23:41:11,089 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:41:11,146 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:41:11,146 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 23:41:11,183 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:41:11,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1604584690] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 23:41:11,183 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 23:41:11,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-16 23:41:11,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751824353] [2024-11-16 23:41:11,183 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 23:41:11,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 23:41:11,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:41:11,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 23:41:11,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-16 23:41:11,208 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 360 [2024-11-16 23:41:11,225 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 327 transitions, 671 flow. Second operand has 10 states, 10 states have (on average 303.8) internal successors, (3038), 10 states have internal predecessors, (3038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:41:11,225 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:41:11,225 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 360 [2024-11-16 23:41:11,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:41:11,448 INFO L124 PetriNetUnfolderBase]: 85/1362 cut-off events. [2024-11-16 23:41:11,448 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-16 23:41:11,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1566 conditions, 1362 events. 85/1362 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 8643 event pairs, 72 based on Foata normal form. 2/1252 useless extension candidates. Maximal degree in co-relation 1560. Up to 178 conditions per place. [2024-11-16 23:41:11,454 INFO L140 encePairwiseOnDemand]: 354/360 looper letters, 27 selfloop transitions, 9 changer transitions 0/335 dead transitions. [2024-11-16 23:41:11,454 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 335 transitions, 761 flow [2024-11-16 23:41:11,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 23:41:11,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-16 23:41:11,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2756 transitions. [2024-11-16 23:41:11,459 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8506172839506173 [2024-11-16 23:41:11,459 INFO L175 Difference]: Start difference. First operand has 329 places, 327 transitions, 671 flow. Second operand 9 states and 2756 transitions. [2024-11-16 23:41:11,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 335 transitions, 761 flow [2024-11-16 23:41:11,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 335 transitions, 759 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-16 23:41:11,464 INFO L231 Difference]: Finished difference. Result has 339 places, 333 transitions, 719 flow [2024-11-16 23:41:11,464 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=360, PETRI_DIFFERENCE_MINUEND_FLOW=669, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=321, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=719, PETRI_PLACES=339, PETRI_TRANSITIONS=333} [2024-11-16 23:41:11,465 INFO L277 CegarLoopForPetriNet]: 330 programPoint places, 9 predicate places. [2024-11-16 23:41:11,465 INFO L471 AbstractCegarLoop]: Abstraction has has 339 places, 333 transitions, 719 flow [2024-11-16 23:41:11,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 303.8) internal successors, (3038), 10 states have internal predecessors, (3038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:41:11,467 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:41:11,467 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] [2024-11-16 23:41:11,487 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 23:41:11,671 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 [2024-11-16 23:41:11,671 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)] === [2024-11-16 23:41:11,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:41:11,673 INFO L85 PathProgramCache]: Analyzing trace with hash -63596519, now seen corresponding path program 2 times [2024-11-16 23:41:11,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:41:11,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143241684] [2024-11-16 23:41:11,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:41:11,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:41:11,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:41:11,854 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:41:11,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:41:11,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143241684] [2024-11-16 23:41:11,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143241684] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:41:11,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [984234647] [2024-11-16 23:41:11,855 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-16 23:41:11,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:41:11,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:41:11,858 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) [2024-11-16 23:41:11,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 23:41:11,949 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-16 23:41:11,949 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 23:41:11,950 INFO L255 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-16 23:41:11,954 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:41:12,026 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 [2024-11-16 23:41:12,056 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 [2024-11-16 23:41:12,088 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 23:41:12,088 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 [2024-11-16 23:41:12,140 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 23:41:12,140 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 [2024-11-16 23:41:12,167 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-16 23:41:12,167 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 23:41:12,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [984234647] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:41:12,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 23:41:12,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-11-16 23:41:12,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027900942] [2024-11-16 23:41:12,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:41:12,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 23:41:12,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:41:12,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 23:41:12,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-16 23:41:12,444 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 360 [2024-11-16 23:41:12,447 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 339 places, 333 transitions, 719 flow. Second operand has 8 states, 8 states have (on average 253.125) internal successors, (2025), 8 states have internal predecessors, (2025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:41:12,447 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:41:12,447 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 360 [2024-11-16 23:41:12,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:41:13,028 INFO L124 PetriNetUnfolderBase]: 1305/5125 cut-off events. [2024-11-16 23:41:13,028 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-11-16 23:41:13,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7752 conditions, 5125 events. 1305/5125 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 45239 event pairs, 1148 based on Foata normal form. 1/4681 useless extension candidates. Maximal degree in co-relation 7744. Up to 2438 conditions per place. [2024-11-16 23:41:13,050 INFO L140 encePairwiseOnDemand]: 348/360 looper letters, 127 selfloop transitions, 11 changer transitions 2/396 dead transitions. [2024-11-16 23:41:13,050 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 346 places, 396 transitions, 1125 flow [2024-11-16 23:41:13,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 23:41:13,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-16 23:41:13,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2158 transitions. [2024-11-16 23:41:13,053 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7493055555555556 [2024-11-16 23:41:13,053 INFO L175 Difference]: Start difference. First operand has 339 places, 333 transitions, 719 flow. Second operand 8 states and 2158 transitions. [2024-11-16 23:41:13,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 346 places, 396 transitions, 1125 flow [2024-11-16 23:41:13,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 345 places, 396 transitions, 1119 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-16 23:41:13,059 INFO L231 Difference]: Finished difference. Result has 350 places, 340 transitions, 780 flow [2024-11-16 23:41:13,059 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=360, PETRI_DIFFERENCE_MINUEND_FLOW=713, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=333, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=323, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=780, PETRI_PLACES=350, PETRI_TRANSITIONS=340} [2024-11-16 23:41:13,060 INFO L277 CegarLoopForPetriNet]: 330 programPoint places, 20 predicate places. [2024-11-16 23:41:13,060 INFO L471 AbstractCegarLoop]: Abstraction has has 350 places, 340 transitions, 780 flow [2024-11-16 23:41:13,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 253.125) internal successors, (2025), 8 states have internal predecessors, (2025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:41:13,061 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:41:13,062 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] [2024-11-16 23:41:13,075 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-16 23:41:13,265 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 [2024-11-16 23:41:13,266 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)] === [2024-11-16 23:41:13,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:41:13,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1359403432, now seen corresponding path program 1 times [2024-11-16 23:41:13,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:41:13,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138152729] [2024-11-16 23:41:13,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:41:13,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:41:13,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:41:13,481 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-16 23:41:13,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:41:13,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138152729] [2024-11-16 23:41:13,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138152729] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:41:13,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1876082509] [2024-11-16 23:41:13,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:41:13,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:41:13,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:41:13,486 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) [2024-11-16 23:41:13,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 23:41:13,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:41:13,588 INFO L255 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-16 23:41:13,591 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:41:13,634 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-16 23:41:13,634 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 23:41:13,702 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-16 23:41:13,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1876082509] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 23:41:13,702 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 23:41:13,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-16 23:41:13,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018175344] [2024-11-16 23:41:13,703 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 23:41:13,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-16 23:41:13,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:41:13,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-16 23:41:13,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-16 23:41:13,734 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 360 [2024-11-16 23:41:13,743 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 350 places, 340 transitions, 780 flow. Second operand has 18 states, 18 states have (on average 303.94444444444446) internal successors, (5471), 18 states have internal predecessors, (5471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:41:13,743 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:41:13,743 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 360 [2024-11-16 23:41:13,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:41:14,200 INFO L124 PetriNetUnfolderBase]: 88/1373 cut-off events. [2024-11-16 23:41:14,200 INFO L125 PetriNetUnfolderBase]: For 63/67 co-relation queries the response was YES. [2024-11-16 23:41:14,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1680 conditions, 1373 events. 88/1373 cut-off events. For 63/67 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 8788 event pairs, 74 based on Foata normal form. 4/1267 useless extension candidates. Maximal degree in co-relation 1666. Up to 175 conditions per place. [2024-11-16 23:41:14,206 INFO L140 encePairwiseOnDemand]: 354/360 looper letters, 31 selfloop transitions, 21 changer transitions 0/358 dead transitions. [2024-11-16 23:41:14,206 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 370 places, 358 transitions, 972 flow [2024-11-16 23:41:14,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-16 23:41:14,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-16 23:41:14,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 6398 transitions. [2024-11-16 23:41:14,216 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8462962962962963 [2024-11-16 23:41:14,216 INFO L175 Difference]: Start difference. First operand has 350 places, 340 transitions, 780 flow. Second operand 21 states and 6398 transitions. [2024-11-16 23:41:14,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 370 places, 358 transitions, 972 flow [2024-11-16 23:41:14,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 368 places, 358 transitions, 965 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:41:14,222 INFO L231 Difference]: Finished difference. Result has 373 places, 353 transitions, 903 flow [2024-11-16 23:41:14,222 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=360, PETRI_DIFFERENCE_MINUEND_FLOW=773, PETRI_DIFFERENCE_MINUEND_PLACES=348, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=340, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=329, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=903, PETRI_PLACES=373, PETRI_TRANSITIONS=353} [2024-11-16 23:41:14,223 INFO L277 CegarLoopForPetriNet]: 330 programPoint places, 43 predicate places. [2024-11-16 23:41:14,223 INFO L471 AbstractCegarLoop]: Abstraction has has 373 places, 353 transitions, 903 flow [2024-11-16 23:41:14,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 303.94444444444446) internal successors, (5471), 18 states have internal predecessors, (5471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:41:14,226 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:41:14,226 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] [2024-11-16 23:41:14,241 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 23:41:14,426 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 [2024-11-16 23:41:14,426 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)] === [2024-11-16 23:41:14,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:41:14,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1252423616, now seen corresponding path program 2 times [2024-11-16 23:41:14,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:41:14,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967496390] [2024-11-16 23:41:14,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:41:14,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:41:14,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:41:14,817 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-16 23:41:14,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:41:14,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967496390] [2024-11-16 23:41:14,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967496390] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:41:14,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1448553985] [2024-11-16 23:41:14,818 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-16 23:41:14,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:41:14,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:41:14,820 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) [2024-11-16 23:41:14,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 23:41:14,902 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-16 23:41:14,903 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 23:41:14,904 INFO L255 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-16 23:41:14,908 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:41:14,923 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 [2024-11-16 23:41:14,955 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 [2024-11-16 23:41:14,998 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 23:41:14,999 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 [2024-11-16 23:41:15,030 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 23:41:15,030 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 [2024-11-16 23:41:15,059 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2024-11-16 23:41:15,059 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 23:41:15,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1448553985] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:41:15,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 23:41:15,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-11-16 23:41:15,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415579039] [2024-11-16 23:41:15,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:41:15,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:41:15,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:41:15,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:41:15,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-16 23:41:15,309 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 253 out of 360 [2024-11-16 23:41:15,310 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 373 places, 353 transitions, 903 flow. Second operand has 6 states, 6 states have (on average 255.66666666666666) internal successors, (1534), 6 states have internal predecessors, (1534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:41:15,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:41:15,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 253 of 360 [2024-11-16 23:41:15,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:41:16,085 INFO L124 PetriNetUnfolderBase]: 1363/5261 cut-off events. [2024-11-16 23:41:16,086 INFO L125 PetriNetUnfolderBase]: For 294/294 co-relation queries the response was YES. [2024-11-16 23:41:16,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8451 conditions, 5261 events. 1363/5261 cut-off events. For 294/294 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 45973 event pairs, 1033 based on Foata normal form. 29/4861 useless extension candidates. Maximal degree in co-relation 8433. Up to 2525 conditions per place. [2024-11-16 23:41:16,109 INFO L140 encePairwiseOnDemand]: 333/360 looper letters, 107 selfloop transitions, 92 changer transitions 0/469 dead transitions. [2024-11-16 23:41:16,109 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 378 places, 469 transitions, 1555 flow [2024-11-16 23:41:16,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:41:16,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:41:16,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1712 transitions. [2024-11-16 23:41:16,112 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7925925925925926 [2024-11-16 23:41:16,112 INFO L175 Difference]: Start difference. First operand has 373 places, 353 transitions, 903 flow. Second operand 6 states and 1712 transitions. [2024-11-16 23:41:16,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 378 places, 469 transitions, 1555 flow [2024-11-16 23:41:16,118 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 372 places, 469 transitions, 1531 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-16 23:41:16,122 INFO L231 Difference]: Finished difference. Result has 377 places, 437 transitions, 1487 flow [2024-11-16 23:41:16,122 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=360, PETRI_DIFFERENCE_MINUEND_FLOW=879, PETRI_DIFFERENCE_MINUEND_PLACES=367, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=321, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1487, PETRI_PLACES=377, PETRI_TRANSITIONS=437} [2024-11-16 23:41:16,123 INFO L277 CegarLoopForPetriNet]: 330 programPoint places, 47 predicate places. [2024-11-16 23:41:16,123 INFO L471 AbstractCegarLoop]: Abstraction has has 377 places, 437 transitions, 1487 flow [2024-11-16 23:41:16,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 255.66666666666666) internal successors, (1534), 6 states have internal predecessors, (1534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:41:16,124 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:41:16,124 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] [2024-11-16 23:41:16,144 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-16 23:41:16,325 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 [2024-11-16 23:41:16,325 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)] === [2024-11-16 23:41:16,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:41:16,326 INFO L85 PathProgramCache]: Analyzing trace with hash -170425562, now seen corresponding path program 1 times [2024-11-16 23:41:16,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:41:16,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717459481] [2024-11-16 23:41:16,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:41:16,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:41:16,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:41:16,784 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 23:41:16,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:41:16,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717459481] [2024-11-16 23:41:16,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717459481] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:41:16,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1340680634] [2024-11-16 23:41:16,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:41:16,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:41:16,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:41:16,790 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) [2024-11-16 23:41:16,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-16 23:41:16,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:41:16,885 INFO L255 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-16 23:41:16,887 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:41:16,984 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 23:41:16,984 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 23:41:17,189 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 23:41:17,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1340680634] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 23:41:17,190 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 23:41:17,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-16 23:41:17,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484203847] [2024-11-16 23:41:17,190 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 23:41:17,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-16 23:41:17,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:41:17,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-16 23:41:17,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-16 23:41:17,216 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 360 [2024-11-16 23:41:17,222 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 377 places, 437 transitions, 1487 flow. Second operand has 23 states, 23 states have (on average 304.04347826086956) internal successors, (6993), 23 states have internal predecessors, (6993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:41:17,222 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:41:17,222 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 360 [2024-11-16 23:41:17,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:41:17,701 INFO L124 PetriNetUnfolderBase]: 252/2039 cut-off events. [2024-11-16 23:41:17,702 INFO L125 PetriNetUnfolderBase]: For 563/613 co-relation queries the response was YES. [2024-11-16 23:41:17,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3229 conditions, 2039 events. 252/2039 cut-off events. For 563/613 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 14875 event pairs, 72 based on Foata normal form. 3/1902 useless extension candidates. Maximal degree in co-relation 3206. Up to 232 conditions per place. [2024-11-16 23:41:17,711 INFO L140 encePairwiseOnDemand]: 354/360 looper letters, 34 selfloop transitions, 30 changer transitions 0/454 dead transitions. [2024-11-16 23:41:17,711 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 454 transitions, 1737 flow [2024-11-16 23:41:17,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-16 23:41:17,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-16 23:41:17,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 9127 transitions. [2024-11-16 23:41:17,720 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8450925925925926 [2024-11-16 23:41:17,721 INFO L175 Difference]: Start difference. First operand has 377 places, 437 transitions, 1487 flow. Second operand 30 states and 9127 transitions. [2024-11-16 23:41:17,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 406 places, 454 transitions, 1737 flow [2024-11-16 23:41:17,726 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 406 places, 454 transitions, 1719 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-11-16 23:41:17,730 INFO L231 Difference]: Finished difference. Result has 410 places, 447 transitions, 1621 flow [2024-11-16 23:41:17,730 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=360, PETRI_DIFFERENCE_MINUEND_FLOW=1469, PETRI_DIFFERENCE_MINUEND_PLACES=377, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=437, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1621, PETRI_PLACES=410, PETRI_TRANSITIONS=447} [2024-11-16 23:41:17,731 INFO L277 CegarLoopForPetriNet]: 330 programPoint places, 80 predicate places. [2024-11-16 23:41:17,731 INFO L471 AbstractCegarLoop]: Abstraction has has 410 places, 447 transitions, 1621 flow [2024-11-16 23:41:17,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 304.04347826086956) internal successors, (6993), 23 states have internal predecessors, (6993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:41:17,733 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:41:17,733 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] [2024-11-16 23:41:17,747 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-16 23:41:17,937 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 [2024-11-16 23:41:17,938 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)] === [2024-11-16 23:41:17,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:41:17,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1301238728, now seen corresponding path program 2 times [2024-11-16 23:41:17,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:41:17,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456516800] [2024-11-16 23:41:17,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:41:17,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:41:17,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:41:17,985 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 23:41:17,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:41:18,023 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 23:41:18,024 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 23:41:18,025 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2024-11-16 23:41:18,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2024-11-16 23:41:18,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2024-11-16 23:41:18,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2024-11-16 23:41:18,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2024-11-16 23:41:18,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2024-11-16 23:41:18,027 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2024-11-16 23:41:18,027 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2024-11-16 23:41:18,027 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2024-11-16 23:41:18,027 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2024-11-16 23:41:18,027 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2024-11-16 23:41:18,027 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2024-11-16 23:41:18,027 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2024-11-16 23:41:18,027 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2024-11-16 23:41:18,028 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2024-11-16 23:41:18,028 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2024-11-16 23:41:18,028 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2024-11-16 23:41:18,028 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2024-11-16 23:41:18,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 23:41:18,028 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1] [2024-11-16 23:41:18,034 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-16 23:41:18,034 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-16 23:41:18,069 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-16 23:41:18,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 435 places, 478 transitions, 972 flow [2024-11-16 23:41:18,137 INFO L124 PetriNetUnfolderBase]: 80/775 cut-off events. [2024-11-16 23:41:18,138 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-16 23:41:18,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 787 conditions, 775 events. 80/775 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3496 event pairs, 0 based on Foata normal form. 0/659 useless extension candidates. Maximal degree in co-relation 496. Up to 12 conditions per place. [2024-11-16 23:41:18,146 INFO L82 GeneralOperation]: Start removeDead. Operand has 435 places, 478 transitions, 972 flow [2024-11-16 23:41:18,152 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 435 places, 478 transitions, 972 flow [2024-11-16 23:41:18,152 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:41:18,153 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;@3a2ede00, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:41:18,153 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-16 23:41:18,161 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:41:18,161 INFO L124 PetriNetUnfolderBase]: 8/141 cut-off events. [2024-11-16 23:41:18,162 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:41:18,162 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:41:18,162 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] [2024-11-16 23:41:18,162 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)] === [2024-11-16 23:41:18,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:41:18,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1921189682, now seen corresponding path program 1 times [2024-11-16 23:41:18,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:41:18,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900447148] [2024-11-16 23:41:18,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:41:18,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:41:18,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:41:18,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:41:18,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:41:18,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900447148] [2024-11-16 23:41:18,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900447148] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:41:18,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:41:18,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:41:18,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780634445] [2024-11-16 23:41:18,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:41:18,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 23:41:18,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:41:18,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 23:41:18,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 23:41:18,188 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 405 out of 478 [2024-11-16 23:41:18,189 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 435 places, 478 transitions, 972 flow. Second operand has 2 states, 2 states have (on average 405.5) internal successors, (811), 2 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:41:18,189 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:41:18,189 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 405 of 478 [2024-11-16 23:41:18,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:41:19,506 INFO L124 PetriNetUnfolderBase]: 1411/11046 cut-off events. [2024-11-16 23:41:19,506 INFO L125 PetriNetUnfolderBase]: For 89/89 co-relation queries the response was YES. [2024-11-16 23:41:19,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13241 conditions, 11046 events. 1411/11046 cut-off events. For 89/89 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 130089 event pairs, 1304 based on Foata normal form. 3527/13735 useless extension candidates. Maximal degree in co-relation 11578. Up to 2143 conditions per place. [2024-11-16 23:41:19,577 INFO L140 encePairwiseOnDemand]: 436/478 looper letters, 28 selfloop transitions, 0 changer transitions 1/430 dead transitions. [2024-11-16 23:41:19,578 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 430 transitions, 932 flow [2024-11-16 23:41:19,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 23:41:19,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-16 23:41:19,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 880 transitions. [2024-11-16 23:41:19,580 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9205020920502092 [2024-11-16 23:41:19,580 INFO L175 Difference]: Start difference. First operand has 435 places, 478 transitions, 972 flow. Second operand 2 states and 880 transitions. [2024-11-16 23:41:19,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 430 transitions, 932 flow [2024-11-16 23:41:19,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 430 places, 430 transitions, 932 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:41:19,585 INFO L231 Difference]: Finished difference. Result has 430 places, 429 transitions, 874 flow [2024-11-16 23:41:19,586 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=478, PETRI_DIFFERENCE_MINUEND_FLOW=876, PETRI_DIFFERENCE_MINUEND_PLACES=429, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=430, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=430, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=874, PETRI_PLACES=430, PETRI_TRANSITIONS=429} [2024-11-16 23:41:19,588 INFO L277 CegarLoopForPetriNet]: 435 programPoint places, -5 predicate places. [2024-11-16 23:41:19,588 INFO L471 AbstractCegarLoop]: Abstraction has has 430 places, 429 transitions, 874 flow [2024-11-16 23:41:19,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 405.5) internal successors, (811), 2 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:41:19,588 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:41:19,589 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] [2024-11-16 23:41:19,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 23:41:19,589 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)] === [2024-11-16 23:41:19,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:41:19,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1399294073, now seen corresponding path program 1 times [2024-11-16 23:41:19,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:41:19,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048024219] [2024-11-16 23:41:19,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:41:19,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:41:19,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:41:19,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:41:19,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:41:19,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048024219] [2024-11-16 23:41:19,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048024219] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:41:19,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:41:19,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 23:41:19,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138713427] [2024-11-16 23:41:19,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:41:19,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:41:19,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:41:19,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:41:19,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:41:19,649 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 399 out of 478 [2024-11-16 23:41:19,651 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 430 places, 429 transitions, 874 flow. Second operand has 3 states, 3 states have (on average 400.3333333333333) internal successors, (1201), 3 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:41:19,651 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:41:19,651 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 399 of 478 [2024-11-16 23:41:19,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:41:21,239 INFO L124 PetriNetUnfolderBase]: 1580/12002 cut-off events. [2024-11-16 23:41:21,239 INFO L125 PetriNetUnfolderBase]: For 89/89 co-relation queries the response was YES. [2024-11-16 23:41:21,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14464 conditions, 12002 events. 1580/12002 cut-off events. For 89/89 co-relation queries the response was YES. Maximal size of possible extension queue 268. Compared 143860 event pairs, 1464 based on Foata normal form. 1/11104 useless extension candidates. Maximal degree in co-relation 14459. Up to 2408 conditions per place. [2024-11-16 23:41:21,309 INFO L140 encePairwiseOnDemand]: 475/478 looper letters, 33 selfloop transitions, 2 changer transitions 0/430 dead transitions. [2024-11-16 23:41:21,310 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 431 places, 430 transitions, 946 flow [2024-11-16 23:41:21,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:41:21,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:41:21,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1233 transitions. [2024-11-16 23:41:21,316 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8598326359832636 [2024-11-16 23:41:21,317 INFO L175 Difference]: Start difference. First operand has 430 places, 429 transitions, 874 flow. Second operand 3 states and 1233 transitions. [2024-11-16 23:41:21,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 431 places, 430 transitions, 946 flow [2024-11-16 23:41:21,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 431 places, 430 transitions, 946 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:41:21,324 INFO L231 Difference]: Finished difference. Result has 432 places, 430 transitions, 886 flow [2024-11-16 23:41:21,324 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=478, PETRI_DIFFERENCE_MINUEND_FLOW=874, PETRI_DIFFERENCE_MINUEND_PLACES=429, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=429, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=427, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=886, PETRI_PLACES=432, PETRI_TRANSITIONS=430} [2024-11-16 23:41:21,325 INFO L277 CegarLoopForPetriNet]: 435 programPoint places, -3 predicate places. [2024-11-16 23:41:21,325 INFO L471 AbstractCegarLoop]: Abstraction has has 432 places, 430 transitions, 886 flow [2024-11-16 23:41:21,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 400.3333333333333) internal successors, (1201), 3 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:41:21,326 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:41:21,326 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] [2024-11-16 23:41:21,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 23:41:21,326 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)] === [2024-11-16 23:41:21,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:41:21,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1320521165, now seen corresponding path program 1 times [2024-11-16 23:41:21,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:41:21,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263219318] [2024-11-16 23:41:21,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:41:21,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:41:21,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:41:21,408 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:41:21,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:41:21,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263219318] [2024-11-16 23:41:21,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263219318] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:41:21,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [172591870] [2024-11-16 23:41:21,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:41:21,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:41:21,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:41:21,415 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) [2024-11-16 23:41:21,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-16 23:41:21,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:41:21,505 INFO L255 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-16 23:41:21,506 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:41:21,540 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:41:21,540 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 23:41:21,576 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:41:21,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [172591870] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 23:41:21,577 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 23:41:21,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-16 23:41:21,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730451629] [2024-11-16 23:41:21,577 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 23:41:21,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 23:41:21,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:41:21,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 23:41:21,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-16 23:41:21,596 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 396 out of 478 [2024-11-16 23:41:21,600 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 432 places, 430 transitions, 886 flow. Second operand has 10 states, 10 states have (on average 397.8) internal successors, (3978), 10 states have internal predecessors, (3978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:41:21,601 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:41:21,601 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 396 of 478 [2024-11-16 23:41:21,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:41:23,807 INFO L124 PetriNetUnfolderBase]: 1580/12011 cut-off events. [2024-11-16 23:41:23,807 INFO L125 PetriNetUnfolderBase]: For 93/93 co-relation queries the response was YES. [2024-11-16 23:41:23,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14492 conditions, 12011 events. 1580/12011 cut-off events. For 93/93 co-relation queries the response was YES. Maximal size of possible extension queue 268. Compared 143628 event pairs, 1464 based on Foata normal form. 2/11114 useless extension candidates. Maximal degree in co-relation 14485. Up to 2408 conditions per place. [2024-11-16 23:41:23,892 INFO L140 encePairwiseOnDemand]: 472/478 looper letters, 37 selfloop transitions, 9 changer transitions 0/438 dead transitions. [2024-11-16 23:41:23,896 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 438 transitions, 996 flow [2024-11-16 23:41:23,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 23:41:23,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-16 23:41:23,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3612 transitions. [2024-11-16 23:41:23,901 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8396094839609484 [2024-11-16 23:41:23,901 INFO L175 Difference]: Start difference. First operand has 432 places, 430 transitions, 886 flow. Second operand 9 states and 3612 transitions. [2024-11-16 23:41:23,901 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 438 transitions, 996 flow [2024-11-16 23:41:23,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 439 places, 438 transitions, 994 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-16 23:41:23,906 INFO L231 Difference]: Finished difference. Result has 442 places, 436 transitions, 934 flow [2024-11-16 23:41:23,907 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=478, PETRI_DIFFERENCE_MINUEND_FLOW=884, PETRI_DIFFERENCE_MINUEND_PLACES=431, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=430, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=424, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=934, PETRI_PLACES=442, PETRI_TRANSITIONS=436} [2024-11-16 23:41:23,908 INFO L277 CegarLoopForPetriNet]: 435 programPoint places, 7 predicate places. [2024-11-16 23:41:23,908 INFO L471 AbstractCegarLoop]: Abstraction has has 442 places, 436 transitions, 934 flow [2024-11-16 23:41:23,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 397.8) internal successors, (3978), 10 states have internal predecessors, (3978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:41:23,909 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:41:23,909 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] [2024-11-16 23:41:23,925 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-16 23:41:24,113 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 [2024-11-16 23:41:24,115 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)] === [2024-11-16 23:41:24,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:41:24,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1075721433, now seen corresponding path program 2 times [2024-11-16 23:41:24,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:41:24,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273331794] [2024-11-16 23:41:24,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:41:24,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:41:24,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:41:24,222 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:41:24,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:41:24,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273331794] [2024-11-16 23:41:24,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273331794] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:41:24,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1232811238] [2024-11-16 23:41:24,222 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-16 23:41:24,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:41:24,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:41:24,224 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) [2024-11-16 23:41:24,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-16 23:41:24,307 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-16 23:41:24,307 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 23:41:24,308 INFO L255 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-16 23:41:24,310 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:41:24,352 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 11 treesize of output 7 [2024-11-16 23:41:24,370 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 [2024-11-16 23:41:24,396 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 23:41:24,397 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 [2024-11-16 23:41:24,429 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 23:41:24,429 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 [2024-11-16 23:41:24,456 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-16 23:41:24,456 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 23:41:24,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1232811238] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:41:24,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 23:41:24,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-11-16 23:41:24,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759908224] [2024-11-16 23:41:24,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:41:24,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 23:41:24,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:41:24,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 23:41:24,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-16 23:41:24,768 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 478 [2024-11-16 23:41:24,770 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 442 places, 436 transitions, 934 flow. Second operand has 8 states, 8 states have (on average 327.125) internal successors, (2617), 8 states have internal predecessors, (2617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:41:24,770 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:41:24,770 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 478 [2024-11-16 23:41:24,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand