./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_71-funloop_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/goblint-regression/28-race_reach_71-funloop_racing.i', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/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) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', 'bde6fe221f69c3fccb0f7c90e011f0b13ab5ca582ddcd328a459cbb512a8fd7f'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_71-funloop_racing.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 bde6fe221f69c3fccb0f7c90e011f0b13ab5ca582ddcd328a459cbb512a8fd7f --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 15:39:52,835 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 15:39:52,914 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-07 15:39:52,919 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 15:39:52,919 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 15:39:52,935 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 15:39:52,936 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 15:39:52,936 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 15:39:52,936 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 15:39:52,936 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 15:39:52,936 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 15:39:52,936 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 15:39:52,937 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 15:39:52,937 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 15:39:52,937 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 15:39:52,937 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 15:39:52,937 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 15:39:52,937 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 15:39:52,937 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 15:39:52,937 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 15:39:52,937 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 15:39:52,937 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 15:39:52,937 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-07 15:39:52,938 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 15:39:52,938 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 15:39:52,938 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 15:39:52,938 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 15:39:52,938 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 15:39:52,938 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 15:39:52,938 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 15:39:52,938 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 15:39:52,938 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 15:39:52,938 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 15:39:52,938 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 15:39:52,938 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 15:39:52,938 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 15:39:52,939 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 15:39:52,939 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 15:39:52,939 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 15:39:52,939 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 15:39:52,939 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 15:39:52,939 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> bde6fe221f69c3fccb0f7c90e011f0b13ab5ca582ddcd328a459cbb512a8fd7f [2024-11-07 15:39:53,158 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 15:39:53,163 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 15:39:53,165 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 15:39:53,165 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 15:39:53,165 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 15:39:53,166 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_71-funloop_racing.i [2024-11-07 15:39:54,235 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 15:39:54,483 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 15:39:54,484 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_71-funloop_racing.i [2024-11-07 15:39:54,500 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/25bf9361f/ac100cfc39fc49568a8cf76636163284/FLAG3bbee2a94 [2024-11-07 15:39:54,514 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/25bf9361f/ac100cfc39fc49568a8cf76636163284 [2024-11-07 15:39:54,517 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 15:39:54,518 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 15:39:54,519 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 15:39:54,519 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 15:39:54,522 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 15:39:54,523 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:39:54" (1/1) ... [2024-11-07 15:39:54,523 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74ae5660 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:54, skipping insertion in model container [2024-11-07 15:39:54,523 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:39:54" (1/1) ... [2024-11-07 15:39:54,545 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 15:39:54,808 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 15:39:54,836 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 15:39:54,899 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 15:39:54,946 INFO L204 MainTranslator]: Completed translation [2024-11-07 15:39:54,948 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:54 WrapperNode [2024-11-07 15:39:54,948 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 15:39:54,949 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 15:39:54,949 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 15:39:54,949 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 15:39:54,953 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:54" (1/1) ... [2024-11-07 15:39:54,969 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:54" (1/1) ... [2024-11-07 15:39:54,995 INFO L138 Inliner]: procedures = 272, calls = 108, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 442 [2024-11-07 15:39:54,996 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 15:39:54,996 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 15:39:54,996 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 15:39:54,996 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 15:39:55,001 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:54" (1/1) ... [2024-11-07 15:39:55,001 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:54" (1/1) ... [2024-11-07 15:39:55,005 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:54" (1/1) ... [2024-11-07 15:39:55,006 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:54" (1/1) ... [2024-11-07 15:39:55,026 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:54" (1/1) ... [2024-11-07 15:39:55,032 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:54" (1/1) ... [2024-11-07 15:39:55,035 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:54" (1/1) ... [2024-11-07 15:39:55,036 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:54" (1/1) ... [2024-11-07 15:39:55,040 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 15:39:55,041 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 15:39:55,041 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 15:39:55,041 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 15:39:55,043 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:54" (1/1) ... [2024-11-07 15:39:55,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 15:39:55,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:39:55,078 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 15:39:55,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 15:39:55,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-07 15:39:55,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-07 15:39:55,096 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-07 15:39:55,096 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-07 15:39:55,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-07 15:39:55,096 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-07 15:39:55,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 15:39:55,096 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-07 15:39:55,096 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-07 15:39:55,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-07 15:39:55,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 15:39:55,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 15:39:55,097 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-07 15:39:55,204 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 15:39:55,205 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 15:39:55,699 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 15:39:55,699 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 15:39:55,738 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 15:39:55,740 INFO L316 CfgBuilder]: Removed 35 assume(true) statements. [2024-11-07 15:39:55,741 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:39:55 BoogieIcfgContainer [2024-11-07 15:39:55,741 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 15:39:55,742 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 15:39:55,743 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 15:39:55,746 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 15:39:55,746 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:39:54" (1/3) ... [2024-11-07 15:39:55,747 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@583311b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:39:55, skipping insertion in model container [2024-11-07 15:39:55,747 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:54" (2/3) ... [2024-11-07 15:39:55,748 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@583311b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:39:55, skipping insertion in model container [2024-11-07 15:39:55,748 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:39:55" (3/3) ... [2024-11-07 15:39:55,749 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_71-funloop_racing.i [2024-11-07 15:39:55,760 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 15:39:55,760 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2024-11-07 15:39:55,760 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 15:39:55,848 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-07 15:39:55,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 400 places, 445 transitions, 897 flow [2024-11-07 15:39:56,065 INFO L124 PetriNetUnfolderBase]: 78/679 cut-off events. [2024-11-07 15:39:56,068 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-07 15:39:56,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 684 conditions, 679 events. 78/679 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 3319 event pairs, 0 based on Foata normal form. 0/569 useless extension candidates. Maximal degree in co-relation 350. Up to 8 conditions per place. [2024-11-07 15:39:56,079 INFO L82 GeneralOperation]: Start removeDead. Operand has 400 places, 445 transitions, 897 flow [2024-11-07 15:39:56,088 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 400 places, 445 transitions, 897 flow [2024-11-07 15:39:56,093 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 15:39:56,099 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;@73a44369, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 15:39:56,100 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-07 15:39:56,116 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 15:39:56,117 INFO L124 PetriNetUnfolderBase]: 8/131 cut-off events. [2024-11-07 15:39:56,117 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 15:39:56,117 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:39:56,118 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:39:56,118 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-07 15:39:56,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:39:56,122 INFO L85 PathProgramCache]: Analyzing trace with hash -866271680, now seen corresponding path program 1 times [2024-11-07 15:39:56,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:39:56,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204131687] [2024-11-07 15:39:56,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:39:56,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:39:56,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:39:56,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:39:56,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:39:56,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204131687] [2024-11-07 15:39:56,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204131687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:39:56,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:39:56,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 15:39:56,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16554535] [2024-11-07 15:39:56,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:39:56,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:39:56,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:39:56,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:39:56,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:39:56,439 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 371 out of 445 [2024-11-07 15:39:56,445 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 400 places, 445 transitions, 897 flow. Second operand has 3 states, 3 states have (on average 372.3333333333333) internal successors, (1117), 3 states have internal predecessors, (1117), 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) [2024-11-07 15:39:56,445 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:39:56,445 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 371 of 445 [2024-11-07 15:39:56,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:39:56,797 INFO L124 PetriNetUnfolderBase]: 161/2166 cut-off events. [2024-11-07 15:39:56,797 INFO L125 PetriNetUnfolderBase]: For 7/8 co-relation queries the response was YES. [2024-11-07 15:39:56,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2475 conditions, 2166 events. 161/2166 cut-off events. For 7/8 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 17603 event pairs, 120 based on Foata normal form. 381/2362 useless extension candidates. Maximal degree in co-relation 2142. Up to 302 conditions per place. [2024-11-07 15:39:56,812 INFO L140 encePairwiseOnDemand]: 401/445 looper letters, 29 selfloop transitions, 2 changer transitions 0/399 dead transitions. [2024-11-07 15:39:56,812 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 399 transitions, 867 flow [2024-11-07 15:39:56,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:39:56,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:39:56,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1187 transitions. [2024-11-07 15:39:56,828 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8891385767790262 [2024-11-07 15:39:56,831 INFO L175 Difference]: Start difference. First operand has 400 places, 445 transitions, 897 flow. Second operand 3 states and 1187 transitions. [2024-11-07 15:39:56,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 396 places, 399 transitions, 867 flow [2024-11-07 15:39:56,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 399 transitions, 867 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 15:39:56,846 INFO L231 Difference]: Finished difference. Result has 397 places, 399 transitions, 815 flow [2024-11-07 15:39:56,848 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=445, PETRI_DIFFERENCE_MINUEND_FLOW=803, PETRI_DIFFERENCE_MINUEND_PLACES=394, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=398, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=396, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=815, PETRI_PLACES=397, PETRI_TRANSITIONS=399} [2024-11-07 15:39:56,850 INFO L277 CegarLoopForPetriNet]: 400 programPoint places, -3 predicate places. [2024-11-07 15:39:56,850 INFO L471 AbstractCegarLoop]: Abstraction has has 397 places, 399 transitions, 815 flow [2024-11-07 15:39:56,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 372.3333333333333) internal successors, (1117), 3 states have internal predecessors, (1117), 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) [2024-11-07 15:39:56,854 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:39:56,854 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:39:56,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 15:39:56,854 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-07 15:39:56,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:39:56,855 INFO L85 PathProgramCache]: Analyzing trace with hash 348771746, now seen corresponding path program 1 times [2024-11-07 15:39:56,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:39:56,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672262149] [2024-11-07 15:39:56,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:39:56,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:39:56,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:39:57,075 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:39:57,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:39:57,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672262149] [2024-11-07 15:39:57,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672262149] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 15:39:57,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [320034567] [2024-11-07 15:39:57,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:39:57,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:39:57,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:39:57,078 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 15:39:57,080 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-07 15:39:57,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:39:57,170 INFO L255 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 15:39:57,177 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 15:39:57,226 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:39:57,227 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 15:39:57,259 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:39:57,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [320034567] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 15:39:57,259 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 15:39:57,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-07 15:39:57,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106123350] [2024-11-07 15:39:57,264 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 15:39:57,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 15:39:57,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:39:57,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 15:39:57,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-07 15:39:57,290 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 368 out of 445 [2024-11-07 15:39:57,293 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 397 places, 399 transitions, 815 flow. Second operand has 10 states, 10 states have (on average 369.8) internal successors, (3698), 10 states have internal predecessors, (3698), 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) [2024-11-07 15:39:57,293 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:39:57,293 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 368 of 445 [2024-11-07 15:39:57,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:39:57,601 INFO L124 PetriNetUnfolderBase]: 161/2173 cut-off events. [2024-11-07 15:39:57,602 INFO L125 PetriNetUnfolderBase]: For 9/10 co-relation queries the response was YES. [2024-11-07 15:39:57,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2501 conditions, 2173 events. 161/2173 cut-off events. For 9/10 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 17517 event pairs, 120 based on Foata normal form. 2/1990 useless extension candidates. Maximal degree in co-relation 2406. Up to 302 conditions per place. [2024-11-07 15:39:57,611 INFO L140 encePairwiseOnDemand]: 439/445 looper letters, 33 selfloop transitions, 9 changer transitions 0/407 dead transitions. [2024-11-07 15:39:57,611 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 405 places, 407 transitions, 917 flow [2024-11-07 15:39:57,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 15:39:57,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-07 15:39:57,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3356 transitions. [2024-11-07 15:39:57,618 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8379525593008739 [2024-11-07 15:39:57,618 INFO L175 Difference]: Start difference. First operand has 397 places, 399 transitions, 815 flow. Second operand 9 states and 3356 transitions. [2024-11-07 15:39:57,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 405 places, 407 transitions, 917 flow [2024-11-07 15:39:57,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 404 places, 407 transitions, 915 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 15:39:57,623 INFO L231 Difference]: Finished difference. Result has 407 places, 405 transitions, 863 flow [2024-11-07 15:39:57,624 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=445, PETRI_DIFFERENCE_MINUEND_FLOW=813, PETRI_DIFFERENCE_MINUEND_PLACES=396, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=399, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=393, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=863, PETRI_PLACES=407, PETRI_TRANSITIONS=405} [2024-11-07 15:39:57,625 INFO L277 CegarLoopForPetriNet]: 400 programPoint places, 7 predicate places. [2024-11-07 15:39:57,625 INFO L471 AbstractCegarLoop]: Abstraction has has 407 places, 405 transitions, 863 flow [2024-11-07 15:39:57,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 369.8) internal successors, (3698), 10 states have internal predecessors, (3698), 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) [2024-11-07 15:39:57,627 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:39:57,627 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:39:57,639 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-07 15:39:57,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:39:57,828 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-07 15:39:57,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:39:57,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1402392674, now seen corresponding path program 2 times [2024-11-07 15:39:57,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:39:57,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093479964] [2024-11-07 15:39:57,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:39:57,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:39:57,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:39:58,047 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:39:58,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:39:58,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093479964] [2024-11-07 15:39:58,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093479964] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 15:39:58,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [609266427] [2024-11-07 15:39:58,049 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 15:39:58,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:39:58,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:39:58,051 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 15:39:58,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-07 15:39:58,138 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-07 15:39:58,139 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 15:39:58,140 INFO L255 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-07 15:39:58,146 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 15:39:58,217 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-07 15:39:58,255 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-11-07 15:39:58,296 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 15:39:58,297 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2024-11-07 15:39:58,340 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 15:39:58,341 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2024-11-07 15:39:58,372 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-07 15:39:58,372 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 15:39:58,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [609266427] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:39:58,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 15:39:58,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-11-07 15:39:58,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360193986] [2024-11-07 15:39:58,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:39:58,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 15:39:58,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:39:58,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 15:39:58,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-07 15:39:58,778 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 445 [2024-11-07 15:39:58,780 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 407 places, 405 transitions, 863 flow. Second operand has 8 states, 8 states have (on average 299.125) internal successors, (2393), 8 states have internal predecessors, (2393), 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) [2024-11-07 15:39:58,780 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:39:58,780 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 445 [2024-11-07 15:39:58,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:39:59,822 INFO L124 PetriNetUnfolderBase]: 2262/8810 cut-off events. [2024-11-07 15:39:59,822 INFO L125 PetriNetUnfolderBase]: For 14/17 co-relation queries the response was YES. [2024-11-07 15:39:59,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13128 conditions, 8810 events. 2262/8810 cut-off events. For 14/17 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 88500 event pairs, 1876 based on Foata normal form. 1/7996 useless extension candidates. Maximal degree in co-relation 13004. Up to 4099 conditions per place. [2024-11-07 15:39:59,852 INFO L140 encePairwiseOnDemand]: 433/445 looper letters, 160 selfloop transitions, 11 changer transitions 0/473 dead transitions. [2024-11-07 15:39:59,852 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 414 places, 473 transitions, 1341 flow [2024-11-07 15:39:59,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 15:39:59,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-07 15:39:59,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2557 transitions. [2024-11-07 15:39:59,857 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7182584269662922 [2024-11-07 15:39:59,857 INFO L175 Difference]: Start difference. First operand has 407 places, 405 transitions, 863 flow. Second operand 8 states and 2557 transitions. [2024-11-07 15:39:59,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 414 places, 473 transitions, 1341 flow [2024-11-07 15:39:59,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 413 places, 473 transitions, 1335 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-07 15:39:59,863 INFO L231 Difference]: Finished difference. Result has 418 places, 412 transitions, 924 flow [2024-11-07 15:39:59,863 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=445, PETRI_DIFFERENCE_MINUEND_FLOW=857, PETRI_DIFFERENCE_MINUEND_PLACES=406, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=405, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=395, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=924, PETRI_PLACES=418, PETRI_TRANSITIONS=412} [2024-11-07 15:39:59,864 INFO L277 CegarLoopForPetriNet]: 400 programPoint places, 18 predicate places. [2024-11-07 15:39:59,864 INFO L471 AbstractCegarLoop]: Abstraction has has 418 places, 412 transitions, 924 flow [2024-11-07 15:39:59,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 299.125) internal successors, (2393), 8 states have internal predecessors, (2393), 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) [2024-11-07 15:39:59,865 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:39:59,865 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:39:59,878 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-07 15:40:00,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:40:00,070 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-07 15:40:00,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:40:00,071 INFO L85 PathProgramCache]: Analyzing trace with hash -270605242, now seen corresponding path program 1 times [2024-11-07 15:40:00,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:40:00,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469487440] [2024-11-07 15:40:00,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:40:00,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:40:00,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:40:00,233 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-07 15:40:00,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:40:00,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469487440] [2024-11-07 15:40:00,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469487440] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 15:40:00,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1695732754] [2024-11-07 15:40:00,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:40:00,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:40:00,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:40:00,236 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 15:40:00,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-07 15:40:00,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:40:00,317 INFO L255 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-07 15:40:00,319 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 15:40:00,350 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-07 15:40:00,350 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 15:40:00,421 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-07 15:40:00,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1695732754] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 15:40:00,422 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 15:40:00,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-07 15:40:00,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616399426] [2024-11-07 15:40:00,422 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 15:40:00,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-07 15:40:00,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:40:00,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-07 15:40:00,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-07 15:40:00,445 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 368 out of 445 [2024-11-07 15:40:00,450 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 418 places, 412 transitions, 924 flow. Second operand has 18 states, 18 states have (on average 369.94444444444446) internal successors, (6659), 18 states have internal predecessors, (6659), 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) [2024-11-07 15:40:00,450 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:40:00,450 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 368 of 445 [2024-11-07 15:40:00,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:40:00,839 INFO L124 PetriNetUnfolderBase]: 176/2154 cut-off events. [2024-11-07 15:40:00,839 INFO L125 PetriNetUnfolderBase]: For 34/39 co-relation queries the response was YES. [2024-11-07 15:40:00,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2622 conditions, 2154 events. 176/2154 cut-off events. For 34/39 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 17580 event pairs, 122 based on Foata normal form. 4/1977 useless extension candidates. Maximal degree in co-relation 2421. Up to 308 conditions per place. [2024-11-07 15:40:00,850 INFO L140 encePairwiseOnDemand]: 439/445 looper letters, 37 selfloop transitions, 21 changer transitions 0/430 dead transitions. [2024-11-07 15:40:00,850 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 438 places, 430 transitions, 1128 flow [2024-11-07 15:40:00,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-07 15:40:00,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-07 15:40:00,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 7790 transitions. [2024-11-07 15:40:00,860 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8336008560727662 [2024-11-07 15:40:00,861 INFO L175 Difference]: Start difference. First operand has 418 places, 412 transitions, 924 flow. Second operand 21 states and 7790 transitions. [2024-11-07 15:40:00,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 438 places, 430 transitions, 1128 flow [2024-11-07 15:40:00,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 436 places, 430 transitions, 1121 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 15:40:00,868 INFO L231 Difference]: Finished difference. Result has 441 places, 425 transitions, 1047 flow [2024-11-07 15:40:00,869 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=445, PETRI_DIFFERENCE_MINUEND_FLOW=917, PETRI_DIFFERENCE_MINUEND_PLACES=416, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=412, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=401, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1047, PETRI_PLACES=441, PETRI_TRANSITIONS=425} [2024-11-07 15:40:00,869 INFO L277 CegarLoopForPetriNet]: 400 programPoint places, 41 predicate places. [2024-11-07 15:40:00,870 INFO L471 AbstractCegarLoop]: Abstraction has has 441 places, 425 transitions, 1047 flow [2024-11-07 15:40:00,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 369.94444444444446) internal successors, (6659), 18 states have internal predecessors, (6659), 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) [2024-11-07 15:40:00,873 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:40:00,873 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:40:00,886 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-07 15:40:01,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:40:01,074 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-07 15:40:01,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:40:01,075 INFO L85 PathProgramCache]: Analyzing trace with hash 867559878, now seen corresponding path program 2 times [2024-11-07 15:40:01,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:40:01,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601007297] [2024-11-07 15:40:01,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:40:01,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:40:01,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:40:01,390 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-07 15:40:01,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:40:01,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601007297] [2024-11-07 15:40:01,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601007297] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 15:40:01,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [133648376] [2024-11-07 15:40:01,392 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 15:40:01,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:40:01,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:40:01,396 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 15:40:01,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-07 15:40:01,471 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-07 15:40:01,471 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 15:40:01,473 INFO L255 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-07 15:40:01,475 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 15:40:01,482 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-07 15:40:01,503 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-11-07 15:40:01,526 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 15:40:01,527 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-11-07 15:40:01,556 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 15:40:01,556 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-11-07 15:40:01,581 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-07 15:40:01,581 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 15:40:01,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [133648376] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:40:01,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 15:40:01,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-11-07 15:40:01,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057867832] [2024-11-07 15:40:01,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:40:01,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:40:01,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:40:01,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:40:01,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-07 15:40:01,848 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 299 out of 445 [2024-11-07 15:40:01,850 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 425 transitions, 1047 flow. Second operand has 6 states, 6 states have (on average 301.6666666666667) internal successors, (1810), 6 states have internal predecessors, (1810), 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) [2024-11-07 15:40:01,850 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:40:01,850 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 299 of 445 [2024-11-07 15:40:01,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:40:03,012 INFO L124 PetriNetUnfolderBase]: 2347/9021 cut-off events. [2024-11-07 15:40:03,013 INFO L125 PetriNetUnfolderBase]: For 368/379 co-relation queries the response was YES. [2024-11-07 15:40:03,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14031 conditions, 9021 events. 2347/9021 cut-off events. For 368/379 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 90747 event pairs, 1564 based on Foata normal form. 33/8276 useless extension candidates. Maximal degree in co-relation 13823. Up to 4253 conditions per place. [2024-11-07 15:40:03,049 INFO L140 encePairwiseOnDemand]: 418/445 looper letters, 133 selfloop transitions, 92 changer transitions 0/541 dead transitions. [2024-11-07 15:40:03,049 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 446 places, 541 transitions, 1751 flow [2024-11-07 15:40:03,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:40:03,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:40:03,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2014 transitions. [2024-11-07 15:40:03,053 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7543071161048689 [2024-11-07 15:40:03,054 INFO L175 Difference]: Start difference. First operand has 441 places, 425 transitions, 1047 flow. Second operand 6 states and 2014 transitions. [2024-11-07 15:40:03,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 446 places, 541 transitions, 1751 flow [2024-11-07 15:40:03,059 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 440 places, 541 transitions, 1727 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-07 15:40:03,063 INFO L231 Difference]: Finished difference. Result has 445 places, 509 transitions, 1631 flow [2024-11-07 15:40:03,064 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=445, PETRI_DIFFERENCE_MINUEND_FLOW=1023, PETRI_DIFFERENCE_MINUEND_PLACES=435, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=425, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=393, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1631, PETRI_PLACES=445, PETRI_TRANSITIONS=509} [2024-11-07 15:40:03,064 INFO L277 CegarLoopForPetriNet]: 400 programPoint places, 45 predicate places. [2024-11-07 15:40:03,065 INFO L471 AbstractCegarLoop]: Abstraction has has 445 places, 509 transitions, 1631 flow [2024-11-07 15:40:03,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 301.6666666666667) internal successors, (1810), 6 states have internal predecessors, (1810), 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) [2024-11-07 15:40:03,066 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:40:03,066 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:40:03,078 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-07 15:40:03,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:40:03,266 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-07 15:40:03,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:40:03,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1124553754, now seen corresponding path program 1 times [2024-11-07 15:40:03,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:40:03,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008945147] [2024-11-07 15:40:03,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:40:03,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:40:03,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:40:03,582 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-07 15:40:03,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:40:03,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008945147] [2024-11-07 15:40:03,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008945147] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 15:40:03,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1315990858] [2024-11-07 15:40:03,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:40:03,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:40:03,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:40:03,584 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 15:40:03,586 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-07 15:40:03,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:40:03,678 INFO L255 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-07 15:40:03,680 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 15:40:03,740 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-07 15:40:03,740 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 15:40:03,898 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-07 15:40:03,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1315990858] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 15:40:03,899 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 15:40:03,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-07 15:40:03,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760711012] [2024-11-07 15:40:03,899 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 15:40:03,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-07 15:40:03,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:40:03,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-07 15:40:03,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-07 15:40:03,928 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 368 out of 445 [2024-11-07 15:40:03,935 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 445 places, 509 transitions, 1631 flow. Second operand has 23 states, 23 states have (on average 370.04347826086956) internal successors, (8511), 23 states have internal predecessors, (8511), 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) [2024-11-07 15:40:03,935 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:40:03,935 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 368 of 445 [2024-11-07 15:40:03,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:40:04,528 INFO L124 PetriNetUnfolderBase]: 330/2915 cut-off events. [2024-11-07 15:40:04,529 INFO L125 PetriNetUnfolderBase]: For 562/631 co-relation queries the response was YES. [2024-11-07 15:40:04,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4561 conditions, 2915 events. 330/2915 cut-off events. For 562/631 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 25537 event pairs, 120 based on Foata normal form. 3/2695 useless extension candidates. Maximal degree in co-relation 4273. Up to 558 conditions per place. [2024-11-07 15:40:04,543 INFO L140 encePairwiseOnDemand]: 439/445 looper letters, 40 selfloop transitions, 30 changer transitions 0/526 dead transitions. [2024-11-07 15:40:04,543 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 474 places, 526 transitions, 1893 flow [2024-11-07 15:40:04,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-07 15:40:04,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-07 15:40:04,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 11113 transitions. [2024-11-07 15:40:04,557 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.832434456928839 [2024-11-07 15:40:04,557 INFO L175 Difference]: Start difference. First operand has 445 places, 509 transitions, 1631 flow. Second operand 30 states and 11113 transitions. [2024-11-07 15:40:04,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 474 places, 526 transitions, 1893 flow [2024-11-07 15:40:04,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 474 places, 526 transitions, 1875 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-11-07 15:40:04,567 INFO L231 Difference]: Finished difference. Result has 478 places, 519 transitions, 1765 flow [2024-11-07 15:40:04,568 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=445, PETRI_DIFFERENCE_MINUEND_FLOW=1613, PETRI_DIFFERENCE_MINUEND_PLACES=445, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=509, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=486, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1765, PETRI_PLACES=478, PETRI_TRANSITIONS=519} [2024-11-07 15:40:04,568 INFO L277 CegarLoopForPetriNet]: 400 programPoint places, 78 predicate places. [2024-11-07 15:40:04,568 INFO L471 AbstractCegarLoop]: Abstraction has has 478 places, 519 transitions, 1765 flow [2024-11-07 15:40:04,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 370.04347826086956) internal successors, (8511), 23 states have internal predecessors, (8511), 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) [2024-11-07 15:40:04,571 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:40:04,571 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:40:04,584 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-07 15:40:04,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:40:04,775 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-07 15:40:04,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:40:04,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1787943356, now seen corresponding path program 2 times [2024-11-07 15:40:04,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:40:04,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545508728] [2024-11-07 15:40:04,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:40:04,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:40:04,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 15:40:04,804 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 15:40:04,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 15:40:04,850 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 15:40:04,851 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-07 15:40:04,852 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining) [2024-11-07 15:40:04,853 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (21 of 23 remaining) [2024-11-07 15:40:04,854 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (20 of 23 remaining) [2024-11-07 15:40:04,854 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (19 of 23 remaining) [2024-11-07 15:40:04,854 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (18 of 23 remaining) [2024-11-07 15:40:04,854 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (17 of 23 remaining) [2024-11-07 15:40:04,854 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (16 of 23 remaining) [2024-11-07 15:40:04,854 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (15 of 23 remaining) [2024-11-07 15:40:04,855 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (14 of 23 remaining) [2024-11-07 15:40:04,855 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (13 of 23 remaining) [2024-11-07 15:40:04,855 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (12 of 23 remaining) [2024-11-07 15:40:04,855 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 23 remaining) [2024-11-07 15:40:04,855 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (10 of 23 remaining) [2024-11-07 15:40:04,855 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 23 remaining) [2024-11-07 15:40:04,856 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 23 remaining) [2024-11-07 15:40:04,856 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 23 remaining) [2024-11-07 15:40:04,856 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 23 remaining) [2024-11-07 15:40:04,856 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (5 of 23 remaining) [2024-11-07 15:40:04,856 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 23 remaining) [2024-11-07 15:40:04,856 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 23 remaining) [2024-11-07 15:40:04,856 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 23 remaining) [2024-11-07 15:40:04,856 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 23 remaining) [2024-11-07 15:40:04,856 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 23 remaining) [2024-11-07 15:40:04,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 15:40:04,857 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1] [2024-11-07 15:40:04,858 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-07 15:40:04,858 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-07 15:40:04,900 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-07 15:40:04,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 501 places, 560 transitions, 1136 flow [2024-11-07 15:40:04,992 INFO L124 PetriNetUnfolderBase]: 126/1056 cut-off events. [2024-11-07 15:40:04,992 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-07 15:40:05,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1068 conditions, 1056 events. 126/1056 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 6081 event pairs, 0 based on Foata normal form. 0/879 useless extension candidates. Maximal degree in co-relation 681. Up to 12 conditions per place. [2024-11-07 15:40:05,002 INFO L82 GeneralOperation]: Start removeDead. Operand has 501 places, 560 transitions, 1136 flow [2024-11-07 15:40:05,008 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 501 places, 560 transitions, 1136 flow [2024-11-07 15:40:05,009 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 15:40:05,010 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;@73a44369, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 15:40:05,012 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-11-07 15:40:05,019 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 15:40:05,019 INFO L124 PetriNetUnfolderBase]: 8/131 cut-off events. [2024-11-07 15:40:05,019 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 15:40:05,019 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:40:05,019 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:40:05,019 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-07 15:40:05,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:40:05,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1660146576, now seen corresponding path program 1 times [2024-11-07 15:40:05,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:40:05,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099979720] [2024-11-07 15:40:05,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:40:05,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:40:05,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:40:05,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:40:05,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:40:05,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099979720] [2024-11-07 15:40:05,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099979720] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:40:05,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:40:05,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 15:40:05,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039913965] [2024-11-07 15:40:05,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:40:05,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:40:05,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:40:05,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:40:05,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:40:05,075 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 462 out of 560 [2024-11-07 15:40:05,076 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 501 places, 560 transitions, 1136 flow. Second operand has 3 states, 3 states have (on average 463.3333333333333) internal successors, (1390), 3 states have internal predecessors, (1390), 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) [2024-11-07 15:40:05,076 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:40:05,076 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 462 of 560 [2024-11-07 15:40:05,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:40:07,235 INFO L124 PetriNetUnfolderBase]: 2887/20443 cut-off events. [2024-11-07 15:40:07,235 INFO L125 PetriNetUnfolderBase]: For 151/155 co-relation queries the response was YES. [2024-11-07 15:40:07,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24699 conditions, 20443 events. 2887/20443 cut-off events. For 151/155 co-relation queries the response was YES. Maximal size of possible extension queue 490. Compared 274064 event pairs, 2376 based on Foata normal form. 5241/23985 useless extension candidates. Maximal degree in co-relation 22020. Up to 4183 conditions per place. [2024-11-07 15:40:07,349 INFO L140 encePairwiseOnDemand]: 503/560 looper letters, 39 selfloop transitions, 2 changer transitions 0/499 dead transitions. [2024-11-07 15:40:07,350 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 495 places, 499 transitions, 1096 flow [2024-11-07 15:40:07,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:40:07,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:40:07,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1483 transitions. [2024-11-07 15:40:07,352 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8827380952380952 [2024-11-07 15:40:07,353 INFO L175 Difference]: Start difference. First operand has 501 places, 560 transitions, 1136 flow. Second operand 3 states and 1483 transitions. [2024-11-07 15:40:07,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 495 places, 499 transitions, 1096 flow [2024-11-07 15:40:07,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 495 places, 499 transitions, 1096 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 15:40:07,360 INFO L231 Difference]: Finished difference. Result has 496 places, 499 transitions, 1024 flow [2024-11-07 15:40:07,360 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=560, PETRI_DIFFERENCE_MINUEND_FLOW=1012, PETRI_DIFFERENCE_MINUEND_PLACES=493, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=498, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=496, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1024, PETRI_PLACES=496, PETRI_TRANSITIONS=499} [2024-11-07 15:40:07,361 INFO L277 CegarLoopForPetriNet]: 501 programPoint places, -5 predicate places. [2024-11-07 15:40:07,361 INFO L471 AbstractCegarLoop]: Abstraction has has 496 places, 499 transitions, 1024 flow [2024-11-07 15:40:07,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 463.3333333333333) internal successors, (1390), 3 states have internal predecessors, (1390), 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) [2024-11-07 15:40:07,362 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:40:07,362 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:40:07,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 15:40:07,362 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-07 15:40:07,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:40:07,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1481426014, now seen corresponding path program 1 times [2024-11-07 15:40:07,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:40:07,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292404048] [2024-11-07 15:40:07,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:40:07,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:40:07,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:40:07,434 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:40:07,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:40:07,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292404048] [2024-11-07 15:40:07,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292404048] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 15:40:07,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [760710231] [2024-11-07 15:40:07,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:40:07,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:40:07,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:40:07,436 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 15:40:07,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-07 15:40:07,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:40:07,519 INFO L255 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 15:40:07,521 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 15:40:07,544 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:40:07,544 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 15:40:07,567 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:40:07,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [760710231] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 15:40:07,569 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 15:40:07,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-07 15:40:07,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823083296] [2024-11-07 15:40:07,569 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 15:40:07,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 15:40:07,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:40:07,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 15:40:07,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-07 15:40:07,587 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 459 out of 560 [2024-11-07 15:40:07,591 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 496 places, 499 transitions, 1024 flow. Second operand has 10 states, 10 states have (on average 460.8) internal successors, (4608), 10 states have internal predecessors, (4608), 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) [2024-11-07 15:40:07,591 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:40:07,591 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 459 of 560 [2024-11-07 15:40:07,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:40:09,678 INFO L124 PetriNetUnfolderBase]: 2887/20450 cut-off events. [2024-11-07 15:40:09,678 INFO L125 PetriNetUnfolderBase]: For 152/156 co-relation queries the response was YES. [2024-11-07 15:40:09,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24725 conditions, 20450 events. 2887/20450 cut-off events. For 152/156 co-relation queries the response was YES. Maximal size of possible extension queue 489. Compared 274414 event pairs, 2376 based on Foata normal form. 2/18753 useless extension candidates. Maximal degree in co-relation 24629. Up to 4183 conditions per place. [2024-11-07 15:40:09,966 INFO L140 encePairwiseOnDemand]: 554/560 looper letters, 43 selfloop transitions, 9 changer transitions 0/507 dead transitions. [2024-11-07 15:40:09,966 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 504 places, 507 transitions, 1146 flow [2024-11-07 15:40:09,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 15:40:09,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-07 15:40:09,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 4185 transitions. [2024-11-07 15:40:09,971 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8303571428571429 [2024-11-07 15:40:09,971 INFO L175 Difference]: Start difference. First operand has 496 places, 499 transitions, 1024 flow. Second operand 9 states and 4185 transitions. [2024-11-07 15:40:09,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 504 places, 507 transitions, 1146 flow [2024-11-07 15:40:09,974 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 503 places, 507 transitions, 1144 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 15:40:09,977 INFO L231 Difference]: Finished difference. Result has 506 places, 505 transitions, 1072 flow [2024-11-07 15:40:09,978 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=560, PETRI_DIFFERENCE_MINUEND_FLOW=1022, PETRI_DIFFERENCE_MINUEND_PLACES=495, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=499, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=493, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1072, PETRI_PLACES=506, PETRI_TRANSITIONS=505} [2024-11-07 15:40:09,980 INFO L277 CegarLoopForPetriNet]: 501 programPoint places, 5 predicate places. [2024-11-07 15:40:09,981 INFO L471 AbstractCegarLoop]: Abstraction has has 506 places, 505 transitions, 1072 flow [2024-11-07 15:40:09,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 460.8) internal successors, (4608), 10 states have internal predecessors, (4608), 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) [2024-11-07 15:40:09,985 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:40:09,985 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:40:10,000 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-07 15:40:10,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-07 15:40:10,186 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-07 15:40:10,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:40:10,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1132784542, now seen corresponding path program 2 times [2024-11-07 15:40:10,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:40:10,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181700163] [2024-11-07 15:40:10,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:40:10,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:40:10,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:40:10,283 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:40:10,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:40:10,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181700163] [2024-11-07 15:40:10,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181700163] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 15:40:10,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1465702048] [2024-11-07 15:40:10,284 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 15:40:10,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:40:10,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:40:10,286 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 15:40:10,287 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-07 15:40:10,364 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-07 15:40:10,364 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 15:40:10,365 INFO L255 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-07 15:40:10,367 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 15:40:10,395 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-07 15:40:10,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-11-07 15:40:10,438 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 15:40:10,439 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2024-11-07 15:40:10,467 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 15:40:10,468 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2024-11-07 15:40:10,491 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-07 15:40:10,491 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 15:40:10,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1465702048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:40:10,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 15:40:10,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-11-07 15:40:10,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829268361] [2024-11-07 15:40:10,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:40:10,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 15:40:10,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:40:10,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 15:40:10,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-07 15:40:10,823 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 369 out of 560 [2024-11-07 15:40:10,825 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 506 places, 505 transitions, 1072 flow. Second operand has 8 states, 8 states have (on average 370.125) internal successors, (2961), 8 states have internal predecessors, (2961), 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) [2024-11-07 15:40:10,825 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:40:10,825 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 369 of 560 [2024-11-07 15:40:10,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand