./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/04-mutex_47-fun_write.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/04-mutex_47-fun_write.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', '4349e9f780aa852bf667d29095b5aaef630c7e32a3c0068468fa5a88e5c63f46'] 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/04-mutex_47-fun_write.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 4349e9f780aa852bf667d29095b5aaef630c7e32a3c0068468fa5a88e5c63f46 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 15:34:08,658 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 15:34:08,738 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-07 15:34:08,743 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 15:34:08,744 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 15:34:08,765 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 15:34:08,766 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 15:34:08,766 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 15:34:08,766 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 15:34:08,766 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 15:34:08,767 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 15:34:08,767 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 15:34:08,767 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 15:34:08,767 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 15:34:08,768 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 15:34:08,768 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 15:34:08,768 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 15:34:08,768 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 15:34:08,768 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 15:34:08,768 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 15:34:08,768 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 15:34:08,768 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 15:34:08,769 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-07 15:34:08,769 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 15:34:08,769 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 15:34:08,769 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 15:34:08,769 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 15:34:08,769 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 15:34:08,769 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 15:34:08,769 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 15:34:08,769 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 15:34:08,769 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 15:34:08,769 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 15:34:08,770 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 15:34:08,770 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 15:34:08,770 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 15:34:08,770 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 15:34:08,770 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 15:34:08,770 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 15:34:08,771 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 15:34:08,771 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 15:34:08,771 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 -> 4349e9f780aa852bf667d29095b5aaef630c7e32a3c0068468fa5a88e5c63f46 [2024-11-07 15:34:09,027 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 15:34:09,034 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 15:34:09,036 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 15:34:09,037 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 15:34:09,037 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 15:34:09,038 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/04-mutex_47-fun_write.i [2024-11-07 15:34:10,204 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 15:34:10,495 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 15:34:10,499 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_47-fun_write.i [2024-11-07 15:34:10,523 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d2835bcdd/9e6ac5ea65e64d01b1067cfc94042d94/FLAG1cf190f00 [2024-11-07 15:34:10,543 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d2835bcdd/9e6ac5ea65e64d01b1067cfc94042d94 [2024-11-07 15:34:10,545 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 15:34:10,546 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 15:34:10,552 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 15:34:10,552 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 15:34:10,554 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 15:34:10,555 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:34:10" (1/1) ... [2024-11-07 15:34:10,560 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10b1bb36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:10, skipping insertion in model container [2024-11-07 15:34:10,560 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:34:10" (1/1) ... [2024-11-07 15:34:10,604 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 15:34:11,010 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 15:34:11,038 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 15:34:11,100 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 15:34:11,195 INFO L204 MainTranslator]: Completed translation [2024-11-07 15:34:11,195 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:11 WrapperNode [2024-11-07 15:34:11,196 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 15:34:11,197 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 15:34:11,200 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 15:34:11,200 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 15:34:11,205 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:11" (1/1) ... [2024-11-07 15:34:11,219 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:11" (1/1) ... [2024-11-07 15:34:11,237 INFO L138 Inliner]: procedures = 263, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 61 [2024-11-07 15:34:11,238 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 15:34:11,239 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 15:34:11,239 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 15:34:11,239 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 15:34:11,244 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:11" (1/1) ... [2024-11-07 15:34:11,244 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:11" (1/1) ... [2024-11-07 15:34:11,247 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:11" (1/1) ... [2024-11-07 15:34:11,251 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:11" (1/1) ... [2024-11-07 15:34:11,255 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:11" (1/1) ... [2024-11-07 15:34:11,259 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:11" (1/1) ... [2024-11-07 15:34:11,260 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:11" (1/1) ... [2024-11-07 15:34:11,264 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:11" (1/1) ... [2024-11-07 15:34:11,265 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 15:34:11,265 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 15:34:11,265 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 15:34:11,265 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 15:34:11,266 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:11" (1/1) ... [2024-11-07 15:34:11,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 15:34:11,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:34:11,300 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 15:34:11,307 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 15:34:11,325 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-07 15:34:11,325 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-07 15:34:11,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 15:34:11,325 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-07 15:34:11,325 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-07 15:34:11,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-07 15:34:11,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 15:34:11,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 15:34:11,327 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 15:34:11,440 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 15:34:11,441 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 15:34:11,548 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 15:34:11,548 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 15:34:11,575 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 15:34:11,575 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-07 15:34:11,575 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:34:11 BoogieIcfgContainer [2024-11-07 15:34:11,575 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 15:34:11,577 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 15:34:11,577 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 15:34:11,584 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 15:34:11,584 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:34:10" (1/3) ... [2024-11-07 15:34:11,584 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6807e723 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:34:11, skipping insertion in model container [2024-11-07 15:34:11,584 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:34:11" (2/3) ... [2024-11-07 15:34:11,584 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6807e723 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:34:11, skipping insertion in model container [2024-11-07 15:34:11,584 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:34:11" (3/3) ... [2024-11-07 15:34:11,585 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_47-fun_write.i [2024-11-07 15:34:11,598 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 15:34:11,599 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-07 15:34:11,599 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 15:34:11,641 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-07 15:34:11,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 67 places, 63 transitions, 133 flow [2024-11-07 15:34:11,686 INFO L124 PetriNetUnfolderBase]: 0/62 cut-off events. [2024-11-07 15:34:11,691 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-07 15:34:11,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 62 events. 0/62 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 36 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-11-07 15:34:11,697 INFO L82 GeneralOperation]: Start removeDead. Operand has 67 places, 63 transitions, 133 flow [2024-11-07 15:34:11,699 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 57 transitions, 117 flow [2024-11-07 15:34:11,707 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 15:34:11,721 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;@6a24cfda, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 15:34:11,725 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-07 15:34:11,738 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 15:34:11,741 INFO L124 PetriNetUnfolderBase]: 0/35 cut-off events. [2024-11-07 15:34:11,741 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 15:34:11,741 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:34:11,742 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] [2024-11-07 15:34:11,742 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-07 15:34:11,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:34:11,746 INFO L85 PathProgramCache]: Analyzing trace with hash -2095740332, now seen corresponding path program 1 times [2024-11-07 15:34:11,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:34:11,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063248632] [2024-11-07 15:34:11,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:34:11,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:34:11,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:34:11,929 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 15:34:11,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:34:11,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063248632] [2024-11-07 15:34:11,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063248632] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:34:11,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:34:11,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:34:11,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347444660] [2024-11-07 15:34:11,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:34:11,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:34:11,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:34:11,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:34:11,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:34:11,970 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 63 [2024-11-07 15:34:11,972 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 57 transitions, 117 flow. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 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 15:34:11,973 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:34:11,973 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 63 [2024-11-07 15:34:11,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:34:12,025 INFO L124 PetriNetUnfolderBase]: 18/157 cut-off events. [2024-11-07 15:34:12,027 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-07 15:34:12,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 210 conditions, 157 events. 18/157 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 520 event pairs, 10 based on Foata normal form. 0/143 useless extension candidates. Maximal degree in co-relation 180. Up to 35 conditions per place. [2024-11-07 15:34:12,030 INFO L140 encePairwiseOnDemand]: 58/63 looper letters, 11 selfloop transitions, 4 changer transitions 0/62 dead transitions. [2024-11-07 15:34:12,030 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 62 transitions, 157 flow [2024-11-07 15:34:12,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:34:12,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:34:12,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 172 transitions. [2024-11-07 15:34:12,041 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.91005291005291 [2024-11-07 15:34:12,042 INFO L175 Difference]: Start difference. First operand has 61 places, 57 transitions, 117 flow. Second operand 3 states and 172 transitions. [2024-11-07 15:34:12,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 62 transitions, 157 flow [2024-11-07 15:34:12,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 62 transitions, 156 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 15:34:12,048 INFO L231 Difference]: Finished difference. Result has 64 places, 60 transitions, 146 flow [2024-11-07 15:34:12,050 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=146, PETRI_PLACES=64, PETRI_TRANSITIONS=60} [2024-11-07 15:34:12,052 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 3 predicate places. [2024-11-07 15:34:12,053 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 60 transitions, 146 flow [2024-11-07 15:34:12,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 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 15:34:12,053 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:34:12,053 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:34:12,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 15:34:12,054 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-07 15:34:12,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:34:12,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1911077038, now seen corresponding path program 1 times [2024-11-07 15:34:12,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:34:12,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229375046] [2024-11-07 15:34:12,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:34:12,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:34:12,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:34:12,125 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 15:34:12,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:34:12,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229375046] [2024-11-07 15:34:12,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229375046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:34:12,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:34:12,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:34:12,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367101003] [2024-11-07 15:34:12,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:34:12,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:34:12,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:34:12,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:34:12,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:34:12,159 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 63 [2024-11-07 15:34:12,160 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 60 transitions, 146 flow. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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 15:34:12,164 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:34:12,164 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 63 [2024-11-07 15:34:12,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:34:12,221 INFO L124 PetriNetUnfolderBase]: 27/193 cut-off events. [2024-11-07 15:34:12,221 INFO L125 PetriNetUnfolderBase]: For 32/37 co-relation queries the response was YES. [2024-11-07 15:34:12,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 306 conditions, 193 events. 27/193 cut-off events. For 32/37 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 746 event pairs, 16 based on Foata normal form. 1/176 useless extension candidates. Maximal degree in co-relation 274. Up to 56 conditions per place. [2024-11-07 15:34:12,222 INFO L140 encePairwiseOnDemand]: 58/63 looper letters, 14 selfloop transitions, 5 changer transitions 1/65 dead transitions. [2024-11-07 15:34:12,223 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 65 transitions, 198 flow [2024-11-07 15:34:12,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:34:12,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:34:12,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 163 transitions. [2024-11-07 15:34:12,225 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8624338624338624 [2024-11-07 15:34:12,225 INFO L175 Difference]: Start difference. First operand has 64 places, 60 transitions, 146 flow. Second operand 3 states and 163 transitions. [2024-11-07 15:34:12,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 65 transitions, 198 flow [2024-11-07 15:34:12,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 65 transitions, 190 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 15:34:12,227 INFO L231 Difference]: Finished difference. Result has 66 places, 63 transitions, 174 flow [2024-11-07 15:34:12,228 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=174, PETRI_PLACES=66, PETRI_TRANSITIONS=63} [2024-11-07 15:34:12,229 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 5 predicate places. [2024-11-07 15:34:12,229 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 63 transitions, 174 flow [2024-11-07 15:34:12,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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 15:34:12,229 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:34:12,229 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] [2024-11-07 15:34:12,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 15:34:12,230 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-07 15:34:12,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:34:12,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1156977747, now seen corresponding path program 1 times [2024-11-07 15:34:12,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:34:12,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621112602] [2024-11-07 15:34:12,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:34:12,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:34:12,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:34:12,298 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 15:34:12,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:34:12,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621112602] [2024-11-07 15:34:12,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621112602] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:34:12,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:34:12,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:34:12,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703631573] [2024-11-07 15:34:12,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:34:12,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:34:12,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:34:12,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:34:12,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:34:12,348 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 63 [2024-11-07 15:34:12,348 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 63 transitions, 174 flow. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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 15:34:12,350 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:34:12,350 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 63 [2024-11-07 15:34:12,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:34:12,396 INFO L124 PetriNetUnfolderBase]: 39/226 cut-off events. [2024-11-07 15:34:12,397 INFO L125 PetriNetUnfolderBase]: For 125/130 co-relation queries the response was YES. [2024-11-07 15:34:12,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 429 conditions, 226 events. 39/226 cut-off events. For 125/130 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 947 event pairs, 16 based on Foata normal form. 2/215 useless extension candidates. Maximal degree in co-relation 397. Up to 75 conditions per place. [2024-11-07 15:34:12,398 INFO L140 encePairwiseOnDemand]: 57/63 looper letters, 11 selfloop transitions, 7 changer transitions 6/70 dead transitions. [2024-11-07 15:34:12,398 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 70 transitions, 246 flow [2024-11-07 15:34:12,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:34:12,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:34:12,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 169 transitions. [2024-11-07 15:34:12,399 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8941798941798942 [2024-11-07 15:34:12,399 INFO L175 Difference]: Start difference. First operand has 66 places, 63 transitions, 174 flow. Second operand 3 states and 169 transitions. [2024-11-07 15:34:12,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 70 transitions, 246 flow [2024-11-07 15:34:12,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 70 transitions, 230 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-07 15:34:12,401 INFO L231 Difference]: Finished difference. Result has 68 places, 63 transitions, 200 flow [2024-11-07 15:34:12,401 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=200, PETRI_PLACES=68, PETRI_TRANSITIONS=63} [2024-11-07 15:34:12,401 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 7 predicate places. [2024-11-07 15:34:12,402 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 63 transitions, 200 flow [2024-11-07 15:34:12,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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 15:34:12,402 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:34:12,402 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] [2024-11-07 15:34:12,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 15:34:12,402 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-07 15:34:12,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:34:12,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1671204815, now seen corresponding path program 1 times [2024-11-07 15:34:12,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:34:12,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133268213] [2024-11-07 15:34:12,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:34:12,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:34:12,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 15:34:12,423 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 15:34:12,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 15:34:12,441 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 15:34:12,441 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-07 15:34:12,442 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 5 remaining) [2024-11-07 15:34:12,443 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (3 of 5 remaining) [2024-11-07 15:34:12,443 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-11-07 15:34:12,443 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 5 remaining) [2024-11-07 15:34:12,443 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 5 remaining) [2024-11-07 15:34:12,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 15:34:12,443 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-07 15:34:12,467 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-07 15:34:12,467 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-07 15:34:12,470 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 03:34:12 BasicIcfg [2024-11-07 15:34:12,470 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-07 15:34:12,471 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-07 15:34:12,471 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-07 15:34:12,471 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-07 15:34:12,471 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:34:11" (3/4) ... [2024-11-07 15:34:12,472 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-07 15:34:12,517 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-07 15:34:12,518 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-07 15:34:12,518 INFO L158 Benchmark]: Toolchain (without parser) took 1972.40ms. Allocated memory is still 109.1MB. Free memory was 83.6MB in the beginning and 61.0MB in the end (delta: 22.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-07 15:34:12,518 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 83.9MB. Free memory is still 48.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 15:34:12,518 INFO L158 Benchmark]: CACSL2BoogieTranslator took 644.75ms. Allocated memory is still 109.1MB. Free memory was 83.5MB in the beginning and 56.2MB in the end (delta: 27.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-07 15:34:12,518 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.60ms. Allocated memory is still 109.1MB. Free memory was 56.2MB in the beginning and 54.3MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 15:34:12,519 INFO L158 Benchmark]: Boogie Preprocessor took 26.15ms. Allocated memory is still 109.1MB. Free memory was 54.3MB in the beginning and 53.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 15:34:12,519 INFO L158 Benchmark]: RCFGBuilder took 309.98ms. Allocated memory is still 109.1MB. Free memory was 53.2MB in the beginning and 40.6MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 15:34:12,519 INFO L158 Benchmark]: TraceAbstraction took 893.94ms. Allocated memory is still 109.1MB. Free memory was 39.9MB in the beginning and 64.5MB in the end (delta: -24.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 15:34:12,519 INFO L158 Benchmark]: Witness Printer took 46.79ms. Allocated memory is still 109.1MB. Free memory was 64.5MB in the beginning and 61.0MB in the end (delta: 3.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 15:34:12,520 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 83.9MB. Free memory is still 48.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 644.75ms. Allocated memory is still 109.1MB. Free memory was 83.5MB in the beginning and 56.2MB in the end (delta: 27.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.60ms. Allocated memory is still 109.1MB. Free memory was 56.2MB in the beginning and 54.3MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.15ms. Allocated memory is still 109.1MB. Free memory was 54.3MB in the beginning and 53.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 309.98ms. Allocated memory is still 109.1MB. Free memory was 53.2MB in the beginning and 40.6MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 893.94ms. Allocated memory is still 109.1MB. Free memory was 39.9MB in the beginning and 64.5MB in the end (delta: -24.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 46.79ms. Allocated memory is still 109.1MB. Free memory was 64.5MB in the beginning and 61.0MB in the end (delta: 3.5MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 933]: Data race detected Data race detected The following path leads to a data race: [L917] 0 int myglobal; VAL [myglobal=0] [L918] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex1={1:0}, myglobal=0] [L919] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex1={1:0}, mutex2={2:0}, myglobal=0] [L930] 0 pthread_t id; VAL [mutex1={1:0}, mutex2={2:0}, myglobal=0] [L931] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [id=-1, mutex1={1:0}, mutex2={2:0}, myglobal=0] [L933] 0 myglobal+1 VAL [id=-1, mutex1={1:0}, mutex2={2:0}, myglobal=0] [L925] CALL, EXPR 1 f() [L921] 1 return 5; VAL [\result=5, mutex1={1:0}, mutex2={2:0}, myglobal=0] [L925] RET, EXPR 1 f() [L925] 1 myglobal=f() VAL [\old(arg)={0:0}, arg={0:0}, mutex1={1:0}, mutex2={2:0}, myglobal=5] [L933] 0 myglobal+1 VAL [id=-1, mutex1={1:0}, mutex2={2:0}, myglobal=5] Now there is a data race on ~myglobal~0 between C: myglobal=f() [925] and C: myglobal+1 [933] - UnprovableResult [Line: 933]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 931]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 925]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 84 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 53 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 88 IncrementalHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 4 mSDtfsCounter, 88 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=200occurred in iteration=3, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 139 NumberOfCodeBlocks, 139 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 102 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-07 15:34:12,553 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE