./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_61-invariant_racing-2.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_61-invariant_racing-2.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 3465c34fa1c26a5c7a3494350123ab41e5828c33cb08ac3f67b81737d460e559 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 23:40:35,532 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 23:40:35,610 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-16 23:40:35,616 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 23:40:35,618 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 23:40:35,647 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 23:40:35,648 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 23:40:35,648 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 23:40:35,650 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 23:40:35,651 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 23:40:35,651 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 23:40:35,651 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 23:40:35,652 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 23:40:35,652 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 23:40:35,653 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 23:40:35,653 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 23:40:35,653 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 23:40:35,654 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 23:40:35,654 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 23:40:35,654 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 23:40:35,655 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 23:40:35,655 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 23:40:35,655 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-16 23:40:35,656 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 23:40:35,656 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-16 23:40:35,656 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 23:40:35,657 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 23:40:35,657 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 23:40:35,657 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 23:40:35,658 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 23:40:35,658 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 23:40:35,658 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:40:35,659 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 23:40:35,659 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 23:40:35,659 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 23:40:35,659 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 23:40:35,660 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 23:40:35,660 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 23:40:35,660 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 23:40:35,661 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 23:40:35,661 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 23:40:35,661 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3465c34fa1c26a5c7a3494350123ab41e5828c33cb08ac3f67b81737d460e559 [2024-11-16 23:40:35,923 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 23:40:35,945 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 23:40:35,952 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 23:40:35,954 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 23:40:35,954 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 23:40:35,955 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_61-invariant_racing-2.i [2024-11-16 23:40:37,390 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 23:40:37,648 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 23:40:37,651 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_61-invariant_racing-2.i [2024-11-16 23:40:37,664 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8dd13243/5ebeba311a274f7ba86781295af2dc19/FLAG05bef9ebc [2024-11-16 23:40:37,677 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8dd13243/5ebeba311a274f7ba86781295af2dc19 [2024-11-16 23:40:37,679 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 23:40:37,680 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 23:40:37,681 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 23:40:37,681 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 23:40:37,686 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 23:40:37,687 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:40:37" (1/1) ... [2024-11-16 23:40:37,688 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@216b7d5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:37, skipping insertion in model container [2024-11-16 23:40:37,688 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:40:37" (1/1) ... [2024-11-16 23:40:37,732 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 23:40:38,135 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:40:38,157 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 23:40:38,201 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:40:38,234 INFO L204 MainTranslator]: Completed translation [2024-11-16 23:40:38,234 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:38 WrapperNode [2024-11-16 23:40:38,234 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 23:40:38,235 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 23:40:38,235 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 23:40:38,236 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 23:40:38,242 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:38" (1/1) ... [2024-11-16 23:40:38,254 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:38" (1/1) ... [2024-11-16 23:40:38,282 INFO L138 Inliner]: procedures = 171, calls = 41, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 127 [2024-11-16 23:40:38,282 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 23:40:38,283 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 23:40:38,283 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 23:40:38,283 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 23:40:38,292 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:38" (1/1) ... [2024-11-16 23:40:38,292 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:38" (1/1) ... [2024-11-16 23:40:38,296 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:38" (1/1) ... [2024-11-16 23:40:38,296 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:38" (1/1) ... [2024-11-16 23:40:38,323 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:38" (1/1) ... [2024-11-16 23:40:38,324 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:38" (1/1) ... [2024-11-16 23:40:38,333 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:38" (1/1) ... [2024-11-16 23:40:38,335 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:38" (1/1) ... [2024-11-16 23:40:38,338 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 23:40:38,343 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 23:40:38,343 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 23:40:38,343 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 23:40:38,345 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:38" (1/1) ... [2024-11-16 23:40:38,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:40:38,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:40:38,431 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 23:40:38,433 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 23:40:38,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-16 23:40:38,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-16 23:40:38,479 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-16 23:40:38,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 23:40:38,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 23:40:38,479 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-16 23:40:38,479 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-16 23:40:38,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 23:40:38,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-16 23:40:38,480 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-16 23:40:38,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 23:40:38,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 23:40:38,481 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 23:40:38,641 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 23:40:38,644 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 23:40:38,899 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L710: havoc main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset; [2024-11-16 23:40:38,900 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L710-1: SUMMARY for call ULTIMATE.dealloc(main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset); srcloc: null [2024-11-16 23:40:38,951 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 23:40:38,951 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 23:40:39,017 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 23:40:39,017 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 23:40:39,018 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:40:39 BoogieIcfgContainer [2024-11-16 23:40:39,018 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 23:40:39,023 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 23:40:39,023 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 23:40:39,026 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 23:40:39,027 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:40:37" (1/3) ... [2024-11-16 23:40:39,028 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20fd881b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:40:39, skipping insertion in model container [2024-11-16 23:40:39,028 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:40:38" (2/3) ... [2024-11-16 23:40:39,028 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20fd881b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:40:39, skipping insertion in model container [2024-11-16 23:40:39,029 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:40:39" (3/3) ... [2024-11-16 23:40:39,033 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_61-invariant_racing-2.i [2024-11-16 23:40:39,050 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 23:40:39,050 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-16 23:40:39,051 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 23:40:39,136 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-16 23:40:39,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 177 places, 194 transitions, 395 flow [2024-11-16 23:40:39,279 INFO L124 PetriNetUnfolderBase]: 32/298 cut-off events. [2024-11-16 23:40:39,279 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-16 23:40:39,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 303 conditions, 298 events. 32/298 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1179 event pairs, 0 based on Foata normal form. 0/244 useless extension candidates. Maximal degree in co-relation 163. Up to 6 conditions per place. [2024-11-16 23:40:39,287 INFO L82 GeneralOperation]: Start removeDead. Operand has 177 places, 194 transitions, 395 flow [2024-11-16 23:40:39,295 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 177 places, 194 transitions, 395 flow [2024-11-16 23:40:39,307 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:40:39,313 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;@63dd035d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:40:39,314 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-16 23:40:39,326 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:40:39,327 INFO L124 PetriNetUnfolderBase]: 3/56 cut-off events. [2024-11-16 23:40:39,327 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:40:39,327 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:40:39,328 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] [2024-11-16 23:40:39,329 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-16 23:40:39,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:40:39,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1105268470, now seen corresponding path program 1 times [2024-11-16 23:40:39,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:40:39,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557015672] [2024-11-16 23:40:39,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:40:39,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:40:39,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:40:39,554 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 23:40:39,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:40:39,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557015672] [2024-11-16 23:40:39,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557015672] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:40:39,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:40:39,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:40:39,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440168142] [2024-11-16 23:40:39,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:40:39,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 23:40:39,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:40:39,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 23:40:39,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 23:40:39,596 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 194 [2024-11-16 23:40:39,599 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 194 transitions, 395 flow. Second operand has 2 states, 2 states have (on average 159.0) internal successors, (318), 2 states have internal predecessors, (318), 0 states have call successors, (0), 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 23:40:39,599 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:40:39,599 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 194 [2024-11-16 23:40:39,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:40:39,819 INFO L124 PetriNetUnfolderBase]: 66/712 cut-off events. [2024-11-16 23:40:39,820 INFO L125 PetriNetUnfolderBase]: For 7/10 co-relation queries the response was YES. [2024-11-16 23:40:39,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 855 conditions, 712 events. 66/712 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3736 event pairs, 56 based on Foata normal form. 150/772 useless extension candidates. Maximal degree in co-relation 718. Up to 138 conditions per place. [2024-11-16 23:40:39,829 INFO L140 encePairwiseOnDemand]: 176/194 looper letters, 17 selfloop transitions, 0 changer transitions 0/174 dead transitions. [2024-11-16 23:40:39,829 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 174 transitions, 389 flow [2024-11-16 23:40:39,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 23:40:39,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-16 23:40:39,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 351 transitions. [2024-11-16 23:40:39,845 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.904639175257732 [2024-11-16 23:40:39,847 INFO L175 Difference]: Start difference. First operand has 177 places, 194 transitions, 395 flow. Second operand 2 states and 351 transitions. [2024-11-16 23:40:39,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 174 transitions, 389 flow [2024-11-16 23:40:39,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 174 transitions, 389 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:40:39,856 INFO L231 Difference]: Finished difference. Result has 176 places, 174 transitions, 355 flow [2024-11-16 23:40:39,859 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=355, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=355, PETRI_PLACES=176, PETRI_TRANSITIONS=174} [2024-11-16 23:40:39,864 INFO L277 CegarLoopForPetriNet]: 177 programPoint places, -1 predicate places. [2024-11-16 23:40:39,865 INFO L471 AbstractCegarLoop]: Abstraction has has 176 places, 174 transitions, 355 flow [2024-11-16 23:40:39,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 159.0) internal successors, (318), 2 states have internal predecessors, (318), 0 states have call successors, (0), 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 23:40:39,865 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:40:39,865 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] [2024-11-16 23:40:39,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 23:40:39,866 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-16 23:40:39,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:40:39,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1814886730, now seen corresponding path program 1 times [2024-11-16 23:40:39,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:40:39,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636010358] [2024-11-16 23:40:39,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:40:39,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:40:39,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:40:40,010 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 23:40:40,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:40:40,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636010358] [2024-11-16 23:40:40,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636010358] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:40:40,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:40:40,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 23:40:40,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995096188] [2024-11-16 23:40:40,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:40:40,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:40:40,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:40:40,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:40:40,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:40:40,056 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 194 [2024-11-16 23:40:40,060 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 174 transitions, 355 flow. Second operand has 3 states, 3 states have (on average 153.66666666666666) internal successors, (461), 3 states have internal predecessors, (461), 0 states have call successors, (0), 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 23:40:40,060 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:40:40,060 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 194 [2024-11-16 23:40:40,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:40:40,215 INFO L124 PetriNetUnfolderBase]: 86/890 cut-off events. [2024-11-16 23:40:40,216 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-16 23:40:40,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1089 conditions, 890 events. 86/890 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 5025 event pairs, 66 based on Foata normal form. 1/804 useless extension candidates. Maximal degree in co-relation 1085. Up to 184 conditions per place. [2024-11-16 23:40:40,222 INFO L140 encePairwiseOnDemand]: 191/194 looper letters, 28 selfloop transitions, 2 changer transitions 0/181 dead transitions. [2024-11-16 23:40:40,222 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 181 transitions, 429 flow [2024-11-16 23:40:40,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:40:40,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:40:40,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 487 transitions. [2024-11-16 23:40:40,225 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8367697594501718 [2024-11-16 23:40:40,225 INFO L175 Difference]: Start difference. First operand has 176 places, 174 transitions, 355 flow. Second operand 3 states and 487 transitions. [2024-11-16 23:40:40,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 181 transitions, 429 flow [2024-11-16 23:40:40,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 181 transitions, 429 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:40:40,233 INFO L231 Difference]: Finished difference. Result has 179 places, 174 transitions, 363 flow [2024-11-16 23:40:40,235 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=355, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=363, PETRI_PLACES=179, PETRI_TRANSITIONS=174} [2024-11-16 23:40:40,236 INFO L277 CegarLoopForPetriNet]: 177 programPoint places, 2 predicate places. [2024-11-16 23:40:40,236 INFO L471 AbstractCegarLoop]: Abstraction has has 179 places, 174 transitions, 363 flow [2024-11-16 23:40:40,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 153.66666666666666) internal successors, (461), 3 states have internal predecessors, (461), 0 states have call successors, (0), 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 23:40:40,237 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:40:40,237 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] [2024-11-16 23:40:40,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 23:40:40,237 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-16 23:40:40,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:40:40,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1650371406, now seen corresponding path program 1 times [2024-11-16 23:40:40,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:40:40,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367246341] [2024-11-16 23:40:40,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:40:40,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:40:40,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:40:40,769 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 23:40:40,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:40:40,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367246341] [2024-11-16 23:40:40,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367246341] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:40:40,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:40:40,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:40:40,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181955414] [2024-11-16 23:40:40,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:40:40,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:40:40,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:40:40,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:40:40,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:40:40,891 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 194 [2024-11-16 23:40:40,893 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 174 transitions, 363 flow. Second operand has 6 states, 6 states have (on average 141.5) internal successors, (849), 6 states have internal predecessors, (849), 0 states have call successors, (0), 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 23:40:40,894 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:40:40,894 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 194 [2024-11-16 23:40:40,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:40:41,205 INFO L124 PetriNetUnfolderBase]: 169/1172 cut-off events. [2024-11-16 23:40:41,205 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-11-16 23:40:41,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1554 conditions, 1172 events. 169/1172 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 7169 event pairs, 102 based on Foata normal form. 0/1049 useless extension candidates. Maximal degree in co-relation 1548. Up to 267 conditions per place. [2024-11-16 23:40:41,213 INFO L140 encePairwiseOnDemand]: 188/194 looper letters, 57 selfloop transitions, 5 changer transitions 0/201 dead transitions. [2024-11-16 23:40:41,213 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 201 transitions, 541 flow [2024-11-16 23:40:41,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:40:41,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:40:41,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 903 transitions. [2024-11-16 23:40:41,216 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7757731958762887 [2024-11-16 23:40:41,217 INFO L175 Difference]: Start difference. First operand has 179 places, 174 transitions, 363 flow. Second operand 6 states and 903 transitions. [2024-11-16 23:40:41,217 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 201 transitions, 541 flow [2024-11-16 23:40:41,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 201 transitions, 537 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:40:41,224 INFO L231 Difference]: Finished difference. Result has 181 places, 173 transitions, 367 flow [2024-11-16 23:40:41,224 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=357, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=367, PETRI_PLACES=181, PETRI_TRANSITIONS=173} [2024-11-16 23:40:41,225 INFO L277 CegarLoopForPetriNet]: 177 programPoint places, 4 predicate places. [2024-11-16 23:40:41,226 INFO L471 AbstractCegarLoop]: Abstraction has has 181 places, 173 transitions, 367 flow [2024-11-16 23:40:41,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 141.5) internal successors, (849), 6 states have internal predecessors, (849), 0 states have call successors, (0), 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 23:40:41,227 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:40:41,227 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] [2024-11-16 23:40:41,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 23:40:41,228 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-16 23:40:41,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:40:41,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1199565829, now seen corresponding path program 1 times [2024-11-16 23:40:41,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:40:41,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954709492] [2024-11-16 23:40:41,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:40:41,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:40:41,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:40:41,282 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 23:40:41,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:40:41,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954709492] [2024-11-16 23:40:41,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954709492] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:40:41,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:40:41,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:40:41,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171223889] [2024-11-16 23:40:41,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:40:41,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:40:41,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:40:41,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:40:41,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:40:41,331 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 194 [2024-11-16 23:40:41,332 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 173 transitions, 367 flow. Second operand has 3 states, 3 states have (on average 137.33333333333334) internal successors, (412), 3 states have internal predecessors, (412), 0 states have call successors, (0), 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 23:40:41,332 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:40:41,332 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 194 [2024-11-16 23:40:41,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:40:41,631 INFO L124 PetriNetUnfolderBase]: 361/2179 cut-off events. [2024-11-16 23:40:41,632 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-11-16 23:40:41,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2999 conditions, 2179 events. 361/2179 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 16209 event pairs, 129 based on Foata normal form. 0/1972 useless extension candidates. Maximal degree in co-relation 2993. Up to 462 conditions per place. [2024-11-16 23:40:41,641 INFO L140 encePairwiseOnDemand]: 172/194 looper letters, 55 selfloop transitions, 16 changer transitions 0/205 dead transitions. [2024-11-16 23:40:41,641 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 205 transitions, 576 flow [2024-11-16 23:40:41,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:40:41,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:40:41,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 485 transitions. [2024-11-16 23:40:41,643 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2024-11-16 23:40:41,643 INFO L175 Difference]: Start difference. First operand has 181 places, 173 transitions, 367 flow. Second operand 3 states and 485 transitions. [2024-11-16 23:40:41,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 205 transitions, 576 flow [2024-11-16 23:40:41,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 205 transitions, 566 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-16 23:40:41,647 INFO L231 Difference]: Finished difference. Result has 180 places, 189 transitions, 497 flow [2024-11-16 23:40:41,648 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=357, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=497, PETRI_PLACES=180, PETRI_TRANSITIONS=189} [2024-11-16 23:40:41,648 INFO L277 CegarLoopForPetriNet]: 177 programPoint places, 3 predicate places. [2024-11-16 23:40:41,649 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 189 transitions, 497 flow [2024-11-16 23:40:41,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 137.33333333333334) internal successors, (412), 3 states have internal predecessors, (412), 0 states have call successors, (0), 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 23:40:41,649 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:40:41,649 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-11-16 23:40:41,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 23:40:41,650 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-16 23:40:41,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:40:41,650 INFO L85 PathProgramCache]: Analyzing trace with hash -49793338, now seen corresponding path program 1 times [2024-11-16 23:40:41,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:40:41,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953350917] [2024-11-16 23:40:41,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:40:41,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:40:41,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:40:41,672 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 23:40:41,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:40:41,721 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 23:40:41,722 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 23:40:41,722 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2024-11-16 23:40:41,724 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2024-11-16 23:40:41,724 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2024-11-16 23:40:41,725 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2024-11-16 23:40:41,725 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2024-11-16 23:40:41,725 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2024-11-16 23:40:41,726 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2024-11-16 23:40:41,726 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2024-11-16 23:40:41,726 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2024-11-16 23:40:41,726 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2024-11-16 23:40:41,726 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2024-11-16 23:40:41,727 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2024-11-16 23:40:41,727 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2024-11-16 23:40:41,727 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2024-11-16 23:40:41,727 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2024-11-16 23:40:41,727 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2024-11-16 23:40:41,727 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2024-11-16 23:40:41,728 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2024-11-16 23:40:41,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 23:40:41,728 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-16 23:40:41,731 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-16 23:40:41,732 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-16 23:40:41,766 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-16 23:40:41,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 229 places, 252 transitions, 520 flow [2024-11-16 23:40:41,824 INFO L124 PetriNetUnfolderBase]: 54/489 cut-off events. [2024-11-16 23:40:41,824 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-16 23:40:41,830 INFO L83 FinitePrefix]: Finished finitePrefix Result has 501 conditions, 489 events. 54/489 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2120 event pairs, 0 based on Foata normal form. 0/399 useless extension candidates. Maximal degree in co-relation 300. Up to 9 conditions per place. [2024-11-16 23:40:41,831 INFO L82 GeneralOperation]: Start removeDead. Operand has 229 places, 252 transitions, 520 flow [2024-11-16 23:40:41,837 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 229 places, 252 transitions, 520 flow [2024-11-16 23:40:41,839 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:40:41,840 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;@63dd035d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:40:41,841 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-16 23:40:41,846 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:40:41,846 INFO L124 PetriNetUnfolderBase]: 3/56 cut-off events. [2024-11-16 23:40:41,846 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:40:41,847 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:40:41,847 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] [2024-11-16 23:40:41,847 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-16 23:40:41,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:40:41,849 INFO L85 PathProgramCache]: Analyzing trace with hash 270473202, now seen corresponding path program 1 times [2024-11-16 23:40:41,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:40:41,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259599140] [2024-11-16 23:40:41,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:40:41,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:40:41,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:40:41,871 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 23:40:41,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:40:41,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259599140] [2024-11-16 23:40:41,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259599140] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:40:41,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:40:41,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:40:41,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414644446] [2024-11-16 23:40:41,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:40:41,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 23:40:41,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:40:41,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 23:40:41,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 23:40:41,874 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 252 [2024-11-16 23:40:41,875 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 252 transitions, 520 flow. Second operand has 2 states, 2 states have (on average 202.0) internal successors, (404), 2 states have internal predecessors, (404), 0 states have call successors, (0), 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 23:40:41,875 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:40:41,875 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 252 [2024-11-16 23:40:41,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:40:42,711 INFO L124 PetriNetUnfolderBase]: 1117/5965 cut-off events. [2024-11-16 23:40:42,712 INFO L125 PetriNetUnfolderBase]: For 83/111 co-relation queries the response was YES. [2024-11-16 23:40:42,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7711 conditions, 5965 events. 1117/5965 cut-off events. For 83/111 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 59270 event pairs, 1022 based on Foata normal form. 1758/6972 useless extension candidates. Maximal degree in co-relation 6710. Up to 1698 conditions per place. [2024-11-16 23:40:42,757 INFO L140 encePairwiseOnDemand]: 228/252 looper letters, 26 selfloop transitions, 0 changer transitions 0/226 dead transitions. [2024-11-16 23:40:42,758 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 226 transitions, 520 flow [2024-11-16 23:40:42,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 23:40:42,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-16 23:40:42,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 452 transitions. [2024-11-16 23:40:42,760 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8968253968253969 [2024-11-16 23:40:42,760 INFO L175 Difference]: Start difference. First operand has 229 places, 252 transitions, 520 flow. Second operand 2 states and 452 transitions. [2024-11-16 23:40:42,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 226 transitions, 520 flow [2024-11-16 23:40:42,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 226 transitions, 520 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:40:42,767 INFO L231 Difference]: Finished difference. Result has 228 places, 226 transitions, 468 flow [2024-11-16 23:40:42,767 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=252, PETRI_DIFFERENCE_MINUEND_FLOW=468, PETRI_DIFFERENCE_MINUEND_PLACES=227, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=468, PETRI_PLACES=228, PETRI_TRANSITIONS=226} [2024-11-16 23:40:42,769 INFO L277 CegarLoopForPetriNet]: 229 programPoint places, -1 predicate places. [2024-11-16 23:40:42,770 INFO L471 AbstractCegarLoop]: Abstraction has has 228 places, 226 transitions, 468 flow [2024-11-16 23:40:42,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 202.0) internal successors, (404), 2 states have internal predecessors, (404), 0 states have call successors, (0), 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 23:40:42,770 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:40:42,771 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] [2024-11-16 23:40:42,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 23:40:42,771 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-16 23:40:42,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:40:42,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1923736010, now seen corresponding path program 1 times [2024-11-16 23:40:42,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:40:42,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029129385] [2024-11-16 23:40:42,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:40:42,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:40:42,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:40:42,819 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 23:40:42,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:40:42,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029129385] [2024-11-16 23:40:42,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029129385] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:40:42,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:40:42,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 23:40:42,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142328859] [2024-11-16 23:40:42,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:40:42,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:40:42,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:40:42,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:40:42,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:40:42,855 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 252 [2024-11-16 23:40:42,856 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 226 transitions, 468 flow. Second operand has 3 states, 3 states have (on average 196.66666666666666) internal successors, (590), 3 states have internal predecessors, (590), 0 states have call successors, (0), 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 23:40:42,856 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:40:42,856 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 252 [2024-11-16 23:40:42,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:40:43,829 INFO L124 PetriNetUnfolderBase]: 1621/8367 cut-off events. [2024-11-16 23:40:43,829 INFO L125 PetriNetUnfolderBase]: For 115/143 co-relation queries the response was YES. [2024-11-16 23:40:43,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10886 conditions, 8367 events. 1621/8367 cut-off events. For 115/143 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 88616 event pairs, 686 based on Foata normal form. 1/7437 useless extension candidates. Maximal degree in co-relation 10881. Up to 2462 conditions per place. [2024-11-16 23:40:43,885 INFO L140 encePairwiseOnDemand]: 249/252 looper letters, 38 selfloop transitions, 2 changer transitions 0/234 dead transitions. [2024-11-16 23:40:43,885 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 234 transitions, 564 flow [2024-11-16 23:40:43,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:40:43,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:40:43,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 626 transitions. [2024-11-16 23:40:43,888 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.828042328042328 [2024-11-16 23:40:43,888 INFO L175 Difference]: Start difference. First operand has 228 places, 226 transitions, 468 flow. Second operand 3 states and 626 transitions. [2024-11-16 23:40:43,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 234 transitions, 564 flow [2024-11-16 23:40:43,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 234 transitions, 564 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:40:43,892 INFO L231 Difference]: Finished difference. Result has 231 places, 227 transitions, 480 flow [2024-11-16 23:40:43,893 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=252, PETRI_DIFFERENCE_MINUEND_FLOW=468, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=480, PETRI_PLACES=231, PETRI_TRANSITIONS=227} [2024-11-16 23:40:43,893 INFO L277 CegarLoopForPetriNet]: 229 programPoint places, 2 predicate places. [2024-11-16 23:40:43,893 INFO L471 AbstractCegarLoop]: Abstraction has has 231 places, 227 transitions, 480 flow [2024-11-16 23:40:43,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 196.66666666666666) internal successors, (590), 3 states have internal predecessors, (590), 0 states have call successors, (0), 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 23:40:43,894 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:40:43,894 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] [2024-11-16 23:40:43,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 23:40:43,895 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-16 23:40:43,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:40:43,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1119660978, now seen corresponding path program 1 times [2024-11-16 23:40:43,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:40:43,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978207662] [2024-11-16 23:40:43,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:40:43,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:40:43,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:40:44,214 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 23:40:44,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:40:44,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978207662] [2024-11-16 23:40:44,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978207662] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:40:44,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:40:44,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:40:44,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674302957] [2024-11-16 23:40:44,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:40:44,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:40:44,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:40:44,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:40:44,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:40:44,322 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 252 [2024-11-16 23:40:44,324 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 227 transitions, 480 flow. Second operand has 6 states, 6 states have (on average 184.5) internal successors, (1107), 6 states have internal predecessors, (1107), 0 states have call successors, (0), 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 23:40:44,324 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:40:44,324 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 252 [2024-11-16 23:40:44,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:40:45,815 INFO L124 PetriNetUnfolderBase]: 2766/11030 cut-off events. [2024-11-16 23:40:45,816 INFO L125 PetriNetUnfolderBase]: For 175/175 co-relation queries the response was YES. [2024-11-16 23:40:45,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15717 conditions, 11030 events. 2766/11030 cut-off events. For 175/175 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 120155 event pairs, 242 based on Foata normal form. 0/10176 useless extension candidates. Maximal degree in co-relation 15710. Up to 3388 conditions per place. [2024-11-16 23:40:45,889 INFO L140 encePairwiseOnDemand]: 246/252 looper letters, 94 selfloop transitions, 6 changer transitions 0/282 dead transitions. [2024-11-16 23:40:45,889 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 282 transitions, 790 flow [2024-11-16 23:40:45,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:40:45,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:40:45,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1198 transitions. [2024-11-16 23:40:45,893 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7923280423280423 [2024-11-16 23:40:45,893 INFO L175 Difference]: Start difference. First operand has 231 places, 227 transitions, 480 flow. Second operand 6 states and 1198 transitions. [2024-11-16 23:40:45,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 282 transitions, 790 flow [2024-11-16 23:40:45,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 282 transitions, 788 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-16 23:40:45,899 INFO L231 Difference]: Finished difference. Result has 234 places, 226 transitions, 488 flow [2024-11-16 23:40:45,899 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=252, PETRI_DIFFERENCE_MINUEND_FLOW=476, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=488, PETRI_PLACES=234, PETRI_TRANSITIONS=226} [2024-11-16 23:40:45,900 INFO L277 CegarLoopForPetriNet]: 229 programPoint places, 5 predicate places. [2024-11-16 23:40:45,900 INFO L471 AbstractCegarLoop]: Abstraction has has 234 places, 226 transitions, 488 flow [2024-11-16 23:40:45,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 184.5) internal successors, (1107), 6 states have internal predecessors, (1107), 0 states have call successors, (0), 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 23:40:45,901 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:40:45,902 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] [2024-11-16 23:40:45,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 23:40:45,902 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-16 23:40:45,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:40:45,902 INFO L85 PathProgramCache]: Analyzing trace with hash 929582147, now seen corresponding path program 1 times [2024-11-16 23:40:45,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:40:45,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141000478] [2024-11-16 23:40:45,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:40:45,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:40:45,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:40:45,937 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 23:40:45,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:40:45,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141000478] [2024-11-16 23:40:45,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141000478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:40:45,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:40:45,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:40:45,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780732763] [2024-11-16 23:40:45,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:40:45,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:40:45,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:40:45,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:40:45,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:40:45,996 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 252 [2024-11-16 23:40:45,997 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 226 transitions, 488 flow. Second operand has 3 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 0 states have call successors, (0), 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 23:40:45,997 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:40:45,997 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 252 [2024-11-16 23:40:45,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:40:51,300 INFO L124 PetriNetUnfolderBase]: 17343/57247 cut-off events. [2024-11-16 23:40:51,300 INFO L125 PetriNetUnfolderBase]: For 448/448 co-relation queries the response was YES. [2024-11-16 23:40:51,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85425 conditions, 57247 events. 17343/57247 cut-off events. For 448/448 co-relation queries the response was YES. Maximal size of possible extension queue 986. Compared 741025 event pairs, 6918 based on Foata normal form. 0/51049 useless extension candidates. Maximal degree in co-relation 85418. Up to 16484 conditions per place. [2024-11-16 23:40:51,640 INFO L140 encePairwiseOnDemand]: 219/252 looper letters, 84 selfloop transitions, 24 changer transitions 0/275 dead transitions. [2024-11-16 23:40:51,640 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 275 transitions, 813 flow [2024-11-16 23:40:51,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:40:51,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:40:51,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 621 transitions. [2024-11-16 23:40:51,643 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8214285714285714 [2024-11-16 23:40:51,643 INFO L175 Difference]: Start difference. First operand has 234 places, 226 transitions, 488 flow. Second operand 3 states and 621 transitions. [2024-11-16 23:40:51,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 275 transitions, 813 flow [2024-11-16 23:40:51,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 275 transitions, 801 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-16 23:40:51,653 INFO L231 Difference]: Finished difference. Result has 233 places, 250 transitions, 686 flow [2024-11-16 23:40:51,654 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=252, PETRI_DIFFERENCE_MINUEND_FLOW=476, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=686, PETRI_PLACES=233, PETRI_TRANSITIONS=250} [2024-11-16 23:40:51,655 INFO L277 CegarLoopForPetriNet]: 229 programPoint places, 4 predicate places. [2024-11-16 23:40:51,655 INFO L471 AbstractCegarLoop]: Abstraction has has 233 places, 250 transitions, 686 flow [2024-11-16 23:40:51,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 0 states have call successors, (0), 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 23:40:51,656 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:40:51,656 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] [2024-11-16 23:40:51,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 23:40:51,656 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-16 23:40:51,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:40:51,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1636258753, now seen corresponding path program 1 times [2024-11-16 23:40:51,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:40:51,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687562936] [2024-11-16 23:40:51,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:40:51,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:40:51,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:40:51,737 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 23:40:51,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:40:51,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687562936] [2024-11-16 23:40:51,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687562936] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:40:51,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [315276727] [2024-11-16 23:40:51,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:40:51,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:40:51,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:40:51,740 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 23:40:51,741 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 23:40:51,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:40:51,827 INFO L255 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 23:40:51,829 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:40:51,856 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-16 23:40:51,857 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 23:40:51,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [315276727] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:40:51,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 23:40:51,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-16 23:40:51,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236382983] [2024-11-16 23:40:51,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:40:51,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:40:51,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:40:51,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:40:51,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:40:51,934 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 252 [2024-11-16 23:40:51,935 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 250 transitions, 686 flow. Second operand has 3 states, 3 states have (on average 182.33333333333334) internal successors, (547), 3 states have internal predecessors, (547), 0 states have call successors, (0), 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 23:40:51,935 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:40:51,935 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 252 [2024-11-16 23:40:51,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:40:57,877 INFO L124 PetriNetUnfolderBase]: 17680/63003 cut-off events. [2024-11-16 23:40:57,877 INFO L125 PetriNetUnfolderBase]: For 20512/21514 co-relation queries the response was YES. [2024-11-16 23:40:58,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111303 conditions, 63003 events. 17680/63003 cut-off events. For 20512/21514 co-relation queries the response was YES. Maximal size of possible extension queue 1078. Compared 844631 event pairs, 10524 based on Foata normal form. 200/57327 useless extension candidates. Maximal degree in co-relation 111295. Up to 24163 conditions per place. [2024-11-16 23:40:58,244 INFO L140 encePairwiseOnDemand]: 238/252 looper letters, 74 selfloop transitions, 24 changer transitions 0/286 dead transitions. [2024-11-16 23:40:58,244 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 286 transitions, 1014 flow [2024-11-16 23:40:58,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:40:58,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:40:58,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 614 transitions. [2024-11-16 23:40:58,246 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8121693121693122 [2024-11-16 23:40:58,246 INFO L175 Difference]: Start difference. First operand has 233 places, 250 transitions, 686 flow. Second operand 3 states and 614 transitions. [2024-11-16 23:40:58,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 286 transitions, 1014 flow [2024-11-16 23:40:58,294 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 286 transitions, 946 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:40:58,298 INFO L231 Difference]: Finished difference. Result has 235 places, 272 transitions, 864 flow [2024-11-16 23:40:58,298 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=252, PETRI_DIFFERENCE_MINUEND_FLOW=638, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=864, PETRI_PLACES=235, PETRI_TRANSITIONS=272} [2024-11-16 23:40:58,299 INFO L277 CegarLoopForPetriNet]: 229 programPoint places, 6 predicate places. [2024-11-16 23:40:58,300 INFO L471 AbstractCegarLoop]: Abstraction has has 235 places, 272 transitions, 864 flow [2024-11-16 23:40:58,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 182.33333333333334) internal successors, (547), 3 states have internal predecessors, (547), 0 states have call successors, (0), 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 23:40:58,300 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:40:58,300 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] [2024-11-16 23:40:58,321 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-16 23:40:58,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-16 23:40:58,502 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-16 23:40:58,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:40:58,502 INFO L85 PathProgramCache]: Analyzing trace with hash -470223692, now seen corresponding path program 1 times [2024-11-16 23:40:58,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:40:58,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673530498] [2024-11-16 23:40:58,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:40:58,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:40:58,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:40:58,557 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 23:40:58,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:40:58,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673530498] [2024-11-16 23:40:58,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673530498] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:40:58,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:40:58,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 23:40:58,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533120788] [2024-11-16 23:40:58,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:40:58,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:40:58,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:40:58,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:40:58,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:40:58,584 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 252 [2024-11-16 23:40:58,585 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 272 transitions, 864 flow. Second operand has 3 states, 3 states have (on average 192.33333333333334) internal successors, (577), 3 states have internal predecessors, (577), 0 states have call successors, (0), 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 23:40:58,585 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:40:58,585 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 252 [2024-11-16 23:40:58,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:41:04,286 INFO L124 PetriNetUnfolderBase]: 16176/62753 cut-off events. [2024-11-16 23:41:04,286 INFO L125 PetriNetUnfolderBase]: For 9257/11321 co-relation queries the response was YES. [2024-11-16 23:41:04,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102257 conditions, 62753 events. 16176/62753 cut-off events. For 9257/11321 co-relation queries the response was YES. Maximal size of possible extension queue 1180. Compared 871212 event pairs, 7797 based on Foata normal form. 191/55493 useless extension candidates. Maximal degree in co-relation 102248. Up to 14888 conditions per place. [2024-11-16 23:41:04,617 INFO L140 encePairwiseOnDemand]: 241/252 looper letters, 58 selfloop transitions, 9 changer transitions 0/300 dead transitions. [2024-11-16 23:41:04,618 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 300 transitions, 1056 flow [2024-11-16 23:41:04,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:41:04,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:41:04,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 639 transitions. [2024-11-16 23:41:04,620 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8452380952380952 [2024-11-16 23:41:04,620 INFO L175 Difference]: Start difference. First operand has 235 places, 272 transitions, 864 flow. Second operand 3 states and 639 transitions. [2024-11-16 23:41:04,621 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 300 transitions, 1056 flow [2024-11-16 23:41:04,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 300 transitions, 1008 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:41:04,648 INFO L231 Difference]: Finished difference. Result has 236 places, 277 transitions, 876 flow [2024-11-16 23:41:04,649 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=252, PETRI_DIFFERENCE_MINUEND_FLOW=808, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=270, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=876, PETRI_PLACES=236, PETRI_TRANSITIONS=277} [2024-11-16 23:41:04,649 INFO L277 CegarLoopForPetriNet]: 229 programPoint places, 7 predicate places. [2024-11-16 23:41:04,650 INFO L471 AbstractCegarLoop]: Abstraction has has 236 places, 277 transitions, 876 flow [2024-11-16 23:41:04,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 192.33333333333334) internal successors, (577), 3 states have internal predecessors, (577), 0 states have call successors, (0), 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 23:41:04,650 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:41:04,650 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] [2024-11-16 23:41:04,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 23:41:04,651 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-16 23:41:04,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:41:04,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1047268937, now seen corresponding path program 1 times [2024-11-16 23:41:04,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:41:04,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30370579] [2024-11-16 23:41:04,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:41:04,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:41:04,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:41:04,714 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 23:41:04,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:41:04,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30370579] [2024-11-16 23:41:04,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30370579] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:41:04,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [605010115] [2024-11-16 23:41:04,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:41:04,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:41:04,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:41:04,718 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 23:41:04,719 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 23:41:04,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:41:04,806 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-16 23:41:04,808 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:41:04,874 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 23:41:04,874 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 23:41:04,933 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 23:41:04,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [605010115] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 23:41:04,936 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 23:41:04,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-16 23:41:04,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179562002] [2024-11-16 23:41:04,937 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 23:41:04,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 23:41:04,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:41:04,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 23:41:04,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-16 23:41:05,012 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 252 [2024-11-16 23:41:05,015 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 277 transitions, 876 flow. Second operand has 10 states, 10 states have (on average 194.3) internal successors, (1943), 10 states have internal predecessors, (1943), 0 states have call successors, (0), 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 23:41:05,015 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:41:05,015 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 252 [2024-11-16 23:41:05,016 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:41:05,126 INFO L124 PetriNetUnfolderBase]: 87/447 cut-off events. [2024-11-16 23:41:05,127 INFO L125 PetriNetUnfolderBase]: For 56/59 co-relation queries the response was YES. [2024-11-16 23:41:05,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 683 conditions, 447 events. 87/447 cut-off events. For 56/59 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2307 event pairs, 3 based on Foata normal form. 16/457 useless extension candidates. Maximal degree in co-relation 673. Up to 60 conditions per place. [2024-11-16 23:41:05,129 INFO L140 encePairwiseOnDemand]: 247/252 looper letters, 28 selfloop transitions, 7 changer transitions 0/87 dead transitions. [2024-11-16 23:41:05,129 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 87 transitions, 288 flow [2024-11-16 23:41:05,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 23:41:05,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-16 23:41:05,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1765 transitions. [2024-11-16 23:41:05,134 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7782186948853616 [2024-11-16 23:41:05,134 INFO L175 Difference]: Start difference. First operand has 236 places, 277 transitions, 876 flow. Second operand 9 states and 1765 transitions. [2024-11-16 23:41:05,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 87 transitions, 288 flow [2024-11-16 23:41:05,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 87 transitions, 278 flow, removed 4 selfloop flow, removed 3 redundant places. [2024-11-16 23:41:05,136 INFO L231 Difference]: Finished difference. Result has 82 places, 67 transitions, 182 flow [2024-11-16 23:41:05,136 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=252, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=182, PETRI_PLACES=82, PETRI_TRANSITIONS=67} [2024-11-16 23:41:05,138 INFO L277 CegarLoopForPetriNet]: 229 programPoint places, -147 predicate places. [2024-11-16 23:41:05,138 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 67 transitions, 182 flow [2024-11-16 23:41:05,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 194.3) internal successors, (1943), 10 states have internal predecessors, (1943), 0 states have call successors, (0), 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 23:41:05,140 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:41:05,140 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-16 23:41:05,158 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 23:41:05,340 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,SelfDestructingSolverStorable11 [2024-11-16 23:41:05,341 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-16 23:41:05,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:41:05,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1542877755, now seen corresponding path program 1 times [2024-11-16 23:41:05,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:41:05,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219452945] [2024-11-16 23:41:05,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:41:05,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:41:05,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:41:05,373 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 23:41:05,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:41:05,397 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 23:41:05,397 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 23:41:05,398 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining) [2024-11-16 23:41:05,398 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (21 of 23 remaining) [2024-11-16 23:41:05,398 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (20 of 23 remaining) [2024-11-16 23:41:05,399 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (19 of 23 remaining) [2024-11-16 23:41:05,399 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (18 of 23 remaining) [2024-11-16 23:41:05,399 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (17 of 23 remaining) [2024-11-16 23:41:05,399 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 23 remaining) [2024-11-16 23:41:05,399 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (15 of 23 remaining) [2024-11-16 23:41:05,399 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (14 of 23 remaining) [2024-11-16 23:41:05,400 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (13 of 23 remaining) [2024-11-16 23:41:05,400 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (12 of 23 remaining) [2024-11-16 23:41:05,400 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (11 of 23 remaining) [2024-11-16 23:41:05,400 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (10 of 23 remaining) [2024-11-16 23:41:05,400 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 23 remaining) [2024-11-16 23:41:05,400 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 23 remaining) [2024-11-16 23:41:05,401 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (7 of 23 remaining) [2024-11-16 23:41:05,401 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 23 remaining) [2024-11-16 23:41:05,401 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 23 remaining) [2024-11-16 23:41:05,401 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 23 remaining) [2024-11-16 23:41:05,401 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (3 of 23 remaining) [2024-11-16 23:41:05,401 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 23 remaining) [2024-11-16 23:41:05,401 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 23 remaining) [2024-11-16 23:41:05,402 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 23 remaining) [2024-11-16 23:41:05,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 23:41:05,402 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:41:05,403 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-16 23:41:05,403 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-16 23:41:05,438 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-16 23:41:05,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 281 places, 310 transitions, 647 flow [2024-11-16 23:41:05,721 INFO L124 PetriNetUnfolderBase]: 81/727 cut-off events. [2024-11-16 23:41:05,721 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-16 23:41:05,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 752 conditions, 727 events. 81/727 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 3313 event pairs, 1 based on Foata normal form. 0/595 useless extension candidates. Maximal degree in co-relation 497. Up to 16 conditions per place. [2024-11-16 23:41:05,726 INFO L82 GeneralOperation]: Start removeDead. Operand has 281 places, 310 transitions, 647 flow [2024-11-16 23:41:05,730 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 281 places, 310 transitions, 647 flow [2024-11-16 23:41:05,732 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:41:05,733 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;@63dd035d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:41:05,733 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-11-16 23:41:05,735 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:41:05,736 INFO L124 PetriNetUnfolderBase]: 3/56 cut-off events. [2024-11-16 23:41:05,736 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:41:05,736 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:41:05,736 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] [2024-11-16 23:41:05,736 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-16 23:41:05,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:41:05,737 INFO L85 PathProgramCache]: Analyzing trace with hash -2017678040, now seen corresponding path program 1 times [2024-11-16 23:41:05,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:41:05,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768406266] [2024-11-16 23:41:05,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:41:05,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:41:05,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:41:05,755 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 23:41:05,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:41:05,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768406266] [2024-11-16 23:41:05,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768406266] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:41:05,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:41:05,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:41:05,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549753669] [2024-11-16 23:41:05,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:41:05,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 23:41:05,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:41:05,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 23:41:05,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 23:41:05,758 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 244 out of 310 [2024-11-16 23:41:05,759 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 310 transitions, 647 flow. Second operand has 2 states, 2 states have (on average 245.0) internal successors, (490), 2 states have internal predecessors, (490), 0 states have call successors, (0), 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 23:41:05,759 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:41:05,759 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 244 of 310 [2024-11-16 23:41:05,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:41:11,763 INFO L124 PetriNetUnfolderBase]: 13825/52704 cut-off events. [2024-11-16 23:41:11,764 INFO L125 PetriNetUnfolderBase]: For 1243/1404 co-relation queries the response was YES. [2024-11-16 23:41:11,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71788 conditions, 52704 events. 13825/52704 cut-off events. For 1243/1404 co-relation queries the response was YES. Maximal size of possible extension queue 1073. Compared 722349 event pairs, 13021 based on Foata normal form. 18516/65132 useless extension candidates. Maximal degree in co-relation 62705. Up to 18538 conditions per place. [2024-11-16 23:41:12,150 INFO L140 encePairwiseOnDemand]: 280/310 looper letters, 35 selfloop transitions, 0 changer transitions 0/278 dead transitions. [2024-11-16 23:41:12,150 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 278 transitions, 653 flow [2024-11-16 23:41:12,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 23:41:12,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-16 23:41:12,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 553 transitions. [2024-11-16 23:41:12,153 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8919354838709678 [2024-11-16 23:41:12,153 INFO L175 Difference]: Start difference. First operand has 281 places, 310 transitions, 647 flow. Second operand 2 states and 553 transitions. [2024-11-16 23:41:12,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 278 transitions, 653 flow [2024-11-16 23:41:12,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 278 transitions, 653 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:41:12,162 INFO L231 Difference]: Finished difference. Result has 280 places, 278 transitions, 583 flow [2024-11-16 23:41:12,162 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=310, PETRI_DIFFERENCE_MINUEND_FLOW=583, PETRI_DIFFERENCE_MINUEND_PLACES=279, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=278, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=583, PETRI_PLACES=280, PETRI_TRANSITIONS=278} [2024-11-16 23:41:12,163 INFO L277 CegarLoopForPetriNet]: 281 programPoint places, -1 predicate places. [2024-11-16 23:41:12,163 INFO L471 AbstractCegarLoop]: Abstraction has has 280 places, 278 transitions, 583 flow [2024-11-16 23:41:12,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 245.0) internal successors, (490), 2 states have internal predecessors, (490), 0 states have call successors, (0), 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 23:41:12,164 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:41:12,164 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] [2024-11-16 23:41:12,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 23:41:12,164 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-16 23:41:12,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:41:12,165 INFO L85 PathProgramCache]: Analyzing trace with hash 158019830, now seen corresponding path program 1 times [2024-11-16 23:41:12,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:41:12,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730799825] [2024-11-16 23:41:12,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:41:12,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:41:12,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:41:12,197 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 23:41:12,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:41:12,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730799825] [2024-11-16 23:41:12,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730799825] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:41:12,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:41:12,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 23:41:12,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413960890] [2024-11-16 23:41:12,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:41:12,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:41:12,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:41:12,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:41:12,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:41:12,221 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 310 [2024-11-16 23:41:12,223 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 278 transitions, 583 flow. Second operand has 3 states, 3 states have (on average 239.66666666666666) internal successors, (719), 3 states have internal predecessors, (719), 0 states have call successors, (0), 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 23:41:12,223 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:41:12,223 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 310 [2024-11-16 23:41:12,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:41:20,106 INFO L124 PetriNetUnfolderBase]: 20295/75755 cut-off events. [2024-11-16 23:41:20,106 INFO L125 PetriNetUnfolderBase]: For 1327/1584 co-relation queries the response was YES. [2024-11-16 23:41:20,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103457 conditions, 75755 events. 20295/75755 cut-off events. For 1327/1584 co-relation queries the response was YES. Maximal size of possible extension queue 1369. Compared 1077725 event pairs, 12300 based on Foata normal form. 1/67219 useless extension candidates. Maximal degree in co-relation 103451. Up to 27148 conditions per place. [2024-11-16 23:41:20,572 INFO L140 encePairwiseOnDemand]: 307/310 looper letters, 47 selfloop transitions, 2 changer transitions 0/286 dead transitions. [2024-11-16 23:41:20,573 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 286 transitions, 697 flow [2024-11-16 23:41:20,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:41:20,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:41:20,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 764 transitions. [2024-11-16 23:41:20,575 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.821505376344086 [2024-11-16 23:41:20,575 INFO L175 Difference]: Start difference. First operand has 280 places, 278 transitions, 583 flow. Second operand 3 states and 764 transitions. [2024-11-16 23:41:20,575 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 286 transitions, 697 flow [2024-11-16 23:41:20,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 286 transitions, 697 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:41:20,580 INFO L231 Difference]: Finished difference. Result has 283 places, 279 transitions, 595 flow [2024-11-16 23:41:20,580 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=310, PETRI_DIFFERENCE_MINUEND_FLOW=583, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=276, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=595, PETRI_PLACES=283, PETRI_TRANSITIONS=279} [2024-11-16 23:41:20,581 INFO L277 CegarLoopForPetriNet]: 281 programPoint places, 2 predicate places. [2024-11-16 23:41:20,581 INFO L471 AbstractCegarLoop]: Abstraction has has 283 places, 279 transitions, 595 flow [2024-11-16 23:41:20,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 239.66666666666666) internal successors, (719), 3 states have internal predecessors, (719), 0 states have call successors, (0), 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 23:41:20,582 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:41:20,582 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] [2024-11-16 23:41:20,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 23:41:20,582 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-16 23:41:20,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:41:20,583 INFO L85 PathProgramCache]: Analyzing trace with hash 232273202, now seen corresponding path program 1 times [2024-11-16 23:41:20,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:41:20,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424703815] [2024-11-16 23:41:20,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:41:20,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:41:20,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:41:20,793 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 23:41:20,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:41:20,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424703815] [2024-11-16 23:41:20,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424703815] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:41:20,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:41:20,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:41:20,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515637236] [2024-11-16 23:41:20,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:41:20,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:41:20,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:41:20,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:41:20,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:41:20,897 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 310 [2024-11-16 23:41:20,899 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 279 transitions, 595 flow. Second operand has 6 states, 6 states have (on average 227.5) internal successors, (1365), 6 states have internal predecessors, (1365), 0 states have call successors, (0), 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 23:41:20,899 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:41:20,900 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 310 [2024-11-16 23:41:20,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand