./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_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_94-alloc_region_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', '7faac9952fd378b53dcd8f21391daa9cc75834f7be2a5ad0c70d96fc8524bd08'] 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_94-alloc_region_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 7faac9952fd378b53dcd8f21391daa9cc75834f7be2a5ad0c70d96fc8524bd08 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 15:41:03,133 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 15:41:03,254 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-07 15:41:03,261 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 15:41:03,261 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 15:41:03,291 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 15:41:03,291 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 15:41:03,291 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 15:41:03,292 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 15:41:03,292 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 15:41:03,292 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 15:41:03,292 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 15:41:03,292 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 15:41:03,292 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 15:41:03,292 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 15:41:03,292 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 15:41:03,293 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 15:41:03,293 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 15:41:03,293 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 15:41:03,293 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 15:41:03,293 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 15:41:03,293 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 15:41:03,293 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-07 15:41:03,293 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 15:41:03,293 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 15:41:03,293 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 15:41:03,293 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 15:41:03,293 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 15:41:03,294 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 15:41:03,294 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 15:41:03,294 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 15:41:03,294 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 15:41:03,294 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 15:41:03,294 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 15:41:03,294 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 15:41:03,294 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 15:41:03,294 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 15:41:03,294 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 15:41:03,295 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 15:41:03,295 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 15:41:03,295 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 15:41:03,295 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 -> 7faac9952fd378b53dcd8f21391daa9cc75834f7be2a5ad0c70d96fc8524bd08 [2024-11-07 15:41:03,504 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 15:41:03,509 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 15:41:03,511 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 15:41:03,511 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 15:41:03,511 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 15:41:03,512 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i [2024-11-07 15:41:04,699 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 15:41:04,911 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 15:41:04,911 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i [2024-11-07 15:41:04,924 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/599b55db7/6867dd276e054f75a4a9629153bf7d2e/FLAG60b785b41 [2024-11-07 15:41:04,934 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/599b55db7/6867dd276e054f75a4a9629153bf7d2e [2024-11-07 15:41:04,936 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 15:41:04,937 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 15:41:04,938 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 15:41:04,938 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 15:41:04,941 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 15:41:04,942 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:41:04" (1/1) ... [2024-11-07 15:41:04,942 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5375cf9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:04, skipping insertion in model container [2024-11-07 15:41:04,942 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:41:04" (1/1) ... [2024-11-07 15:41:04,970 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 15:41:05,321 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 15:41:05,343 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 15:41:05,424 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 15:41:05,494 INFO L204 MainTranslator]: Completed translation [2024-11-07 15:41:05,494 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:05 WrapperNode [2024-11-07 15:41:05,494 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 15:41:05,495 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 15:41:05,495 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 15:41:05,495 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 15:41:05,500 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:05" (1/1) ... [2024-11-07 15:41:05,525 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:05" (1/1) ... [2024-11-07 15:41:05,565 INFO L138 Inliner]: procedures = 378, calls = 83, calls flagged for inlining = 10, calls inlined = 11, statements flattened = 446 [2024-11-07 15:41:05,565 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 15:41:05,566 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 15:41:05,566 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 15:41:05,566 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 15:41:05,573 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:05" (1/1) ... [2024-11-07 15:41:05,573 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:05" (1/1) ... [2024-11-07 15:41:05,579 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:05" (1/1) ... [2024-11-07 15:41:05,579 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:05" (1/1) ... [2024-11-07 15:41:05,612 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:05" (1/1) ... [2024-11-07 15:41:05,621 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:05" (1/1) ... [2024-11-07 15:41:05,627 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:05" (1/1) ... [2024-11-07 15:41:05,629 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:05" (1/1) ... [2024-11-07 15:41:05,636 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 15:41:05,641 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 15:41:05,641 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 15:41:05,641 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 15:41:05,642 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:05" (1/1) ... [2024-11-07 15:41:05,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 15:41:05,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:41:05,673 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 15:41:05,680 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 15:41:05,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-07 15:41:05,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-07 15:41:05,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-07 15:41:05,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-07 15:41:05,711 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-07 15:41:05,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-07 15:41:05,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-07 15:41:05,711 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-07 15:41:05,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-07 15:41:05,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 15:41:05,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-07 15:41:05,712 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-07 15:41:05,712 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-07 15:41:05,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-07 15:41:05,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 15:41:05,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 15:41:05,713 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 15:41:05,844 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 15:41:05,845 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 15:41:06,374 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 15:41:06,374 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 15:41:06,401 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 15:41:06,401 INFO L316 CfgBuilder]: Removed 23 assume(true) statements. [2024-11-07 15:41:06,402 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:41:06 BoogieIcfgContainer [2024-11-07 15:41:06,402 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 15:41:06,403 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 15:41:06,403 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 15:41:06,407 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 15:41:06,407 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:41:04" (1/3) ... [2024-11-07 15:41:06,407 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@354cf5c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:41:06, skipping insertion in model container [2024-11-07 15:41:06,407 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:05" (2/3) ... [2024-11-07 15:41:06,408 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@354cf5c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:41:06, skipping insertion in model container [2024-11-07 15:41:06,408 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:41:06" (3/3) ... [2024-11-07 15:41:06,409 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_94-alloc_region_racing.i [2024-11-07 15:41:06,419 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 15:41:06,419 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 29 error locations. [2024-11-07 15:41:06,419 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 15:41:06,509 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-07 15:41:06,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 444 places, 472 transitions, 951 flow [2024-11-07 15:41:06,794 INFO L124 PetriNetUnfolderBase]: 48/694 cut-off events. [2024-11-07 15:41:06,797 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-07 15:41:06,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 699 conditions, 694 events. 48/694 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2342 event pairs, 0 based on Foata normal form. 0/599 useless extension candidates. Maximal degree in co-relation 388. Up to 8 conditions per place. [2024-11-07 15:41:06,809 INFO L82 GeneralOperation]: Start removeDead. Operand has 444 places, 472 transitions, 951 flow [2024-11-07 15:41:06,819 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 444 places, 472 transitions, 951 flow [2024-11-07 15:41:06,827 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 15:41:06,837 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;@6af24db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 15:41:06,840 INFO L334 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2024-11-07 15:41:06,847 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 15:41:06,847 INFO L124 PetriNetUnfolderBase]: 0/40 cut-off events. [2024-11-07 15:41:06,848 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 15:41:06,848 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:41:06,849 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] [2024-11-07 15:41:06,849 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-07 15:41:06,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:41:06,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1498853862, now seen corresponding path program 1 times [2024-11-07 15:41:06,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:41:06,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69009105] [2024-11-07 15:41:06,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:41:06,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:41:06,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:41:07,512 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 15:41:07,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:41:07,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69009105] [2024-11-07 15:41:07,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69009105] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:41:07,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:41:07,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:41:07,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605798645] [2024-11-07 15:41:07,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:41:07,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:41:07,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:41:07,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:41:07,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:41:08,216 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 472 [2024-11-07 15:41:08,223 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 472 transitions, 951 flow. Second operand has 6 states, 6 states have (on average 297.3333333333333) internal successors, (1784), 6 states have internal predecessors, (1784), 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 15:41:08,223 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:41:08,223 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 472 [2024-11-07 15:41:08,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:41:10,627 INFO L124 PetriNetUnfolderBase]: 3778/14457 cut-off events. [2024-11-07 15:41:10,631 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-07 15:41:10,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21947 conditions, 14457 events. 3778/14457 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 135611 event pairs, 3600 based on Foata normal form. 1282/14603 useless extension candidates. Maximal degree in co-relation 21556. Up to 7480 conditions per place. [2024-11-07 15:41:10,747 INFO L140 encePairwiseOnDemand]: 439/472 looper letters, 141 selfloop transitions, 5 changer transitions 0/440 dead transitions. [2024-11-07 15:41:10,751 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 444 places, 440 transitions, 1179 flow [2024-11-07 15:41:10,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:41:10,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:41:10,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1950 transitions. [2024-11-07 15:41:10,779 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6885593220338984 [2024-11-07 15:41:10,784 INFO L175 Difference]: Start difference. First operand has 444 places, 472 transitions, 951 flow. Second operand 6 states and 1950 transitions. [2024-11-07 15:41:10,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 444 places, 440 transitions, 1179 flow [2024-11-07 15:41:10,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 440 transitions, 1179 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 15:41:10,802 INFO L231 Difference]: Finished difference. Result has 444 places, 440 transitions, 897 flow [2024-11-07 15:41:10,808 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=887, PETRI_DIFFERENCE_MINUEND_PLACES=439, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=435, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=897, PETRI_PLACES=444, PETRI_TRANSITIONS=440} [2024-11-07 15:41:10,811 INFO L277 CegarLoopForPetriNet]: 444 programPoint places, 0 predicate places. [2024-11-07 15:41:10,811 INFO L471 AbstractCegarLoop]: Abstraction has has 444 places, 440 transitions, 897 flow [2024-11-07 15:41:10,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 297.3333333333333) internal successors, (1784), 6 states have internal predecessors, (1784), 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 15:41:10,815 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:41:10,815 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] [2024-11-07 15:41:10,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 15:41:10,816 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-07 15:41:10,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:41:10,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1333600576, now seen corresponding path program 1 times [2024-11-07 15:41:10,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:41:10,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822701468] [2024-11-07 15:41:10,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:41:10,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:41:10,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:41:11,306 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 15:41:11,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:41:11,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822701468] [2024-11-07 15:41:11,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822701468] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:41:11,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:41:11,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:41:11,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828593037] [2024-11-07 15:41:11,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:41:11,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:41:11,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:41:11,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:41:11,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:41:12,030 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 343 out of 472 [2024-11-07 15:41:12,033 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 440 transitions, 897 flow. Second operand has 6 states, 6 states have (on average 344.8333333333333) internal successors, (2069), 6 states have internal predecessors, (2069), 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 15:41:12,033 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:41:12,033 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 343 of 472 [2024-11-07 15:41:12,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:41:13,634 INFO L124 PetriNetUnfolderBase]: 1984/12446 cut-off events. [2024-11-07 15:41:13,635 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-07 15:41:13,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16321 conditions, 12446 events. 1984/12446 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 123196 event pairs, 1166 based on Foata normal form. 0/11278 useless extension candidates. Maximal degree in co-relation 16263. Up to 3409 conditions per place. [2024-11-07 15:41:13,686 INFO L140 encePairwiseOnDemand]: 435/472 looper letters, 138 selfloop transitions, 107 changer transitions 0/585 dead transitions. [2024-11-07 15:41:13,686 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 448 places, 585 transitions, 1680 flow [2024-11-07 15:41:13,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:41:13,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:41:13,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2305 transitions. [2024-11-07 15:41:13,691 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.813912429378531 [2024-11-07 15:41:13,691 INFO L175 Difference]: Start difference. First operand has 444 places, 440 transitions, 897 flow. Second operand 6 states and 2305 transitions. [2024-11-07 15:41:13,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 448 places, 585 transitions, 1680 flow [2024-11-07 15:41:13,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 443 places, 585 transitions, 1670 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-07 15:41:13,702 INFO L231 Difference]: Finished difference. Result has 448 places, 540 transitions, 1575 flow [2024-11-07 15:41:13,703 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=885, PETRI_DIFFERENCE_MINUEND_PLACES=438, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=439, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=404, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1575, PETRI_PLACES=448, PETRI_TRANSITIONS=540} [2024-11-07 15:41:13,704 INFO L277 CegarLoopForPetriNet]: 444 programPoint places, 4 predicate places. [2024-11-07 15:41:13,704 INFO L471 AbstractCegarLoop]: Abstraction has has 448 places, 540 transitions, 1575 flow [2024-11-07 15:41:13,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 344.8333333333333) internal successors, (2069), 6 states have internal predecessors, (2069), 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 15:41:13,705 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:41:13,706 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] [2024-11-07 15:41:13,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 15:41:13,706 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-07 15:41:13,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:41:13,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1170861615, now seen corresponding path program 1 times [2024-11-07 15:41:13,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:41:13,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215426919] [2024-11-07 15:41:13,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:41:13,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:41:13,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:41:14,008 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 15:41:14,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:41:14,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215426919] [2024-11-07 15:41:14,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215426919] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:41:14,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:41:14,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:41:14,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523250965] [2024-11-07 15:41:14,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:41:14,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:41:14,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:41:14,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:41:14,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:41:14,436 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 299 out of 472 [2024-11-07 15:41:14,438 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 448 places, 540 transitions, 1575 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 15:41:14,438 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:41:14,438 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 299 of 472 [2024-11-07 15:41:14,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:41:17,000 INFO L124 PetriNetUnfolderBase]: 5534/21184 cut-off events. [2024-11-07 15:41:17,000 INFO L125 PetriNetUnfolderBase]: For 3369/3415 co-relation queries the response was YES. [2024-11-07 15:41:17,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36358 conditions, 21184 events. 5534/21184 cut-off events. For 3369/3415 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 216097 event pairs, 3888 based on Foata normal form. 0/19320 useless extension candidates. Maximal degree in co-relation 35835. Up to 10652 conditions per place. [2024-11-07 15:41:17,079 INFO L140 encePairwiseOnDemand]: 419/472 looper letters, 277 selfloop transitions, 171 changer transitions 0/744 dead transitions. [2024-11-07 15:41:17,079 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 452 places, 744 transitions, 3071 flow [2024-11-07 15:41:17,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:41:17,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:41:17,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2144 transitions. [2024-11-07 15:41:17,085 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7570621468926554 [2024-11-07 15:41:17,085 INFO L175 Difference]: Start difference. First operand has 448 places, 540 transitions, 1575 flow. Second operand 6 states and 2144 transitions. [2024-11-07 15:41:17,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 452 places, 744 transitions, 3071 flow [2024-11-07 15:41:17,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 452 places, 744 transitions, 3071 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 15:41:17,106 INFO L231 Difference]: Finished difference. Result has 457 places, 704 transitions, 2871 flow [2024-11-07 15:41:17,107 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=1573, PETRI_DIFFERENCE_MINUEND_PLACES=447, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=539, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=488, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2871, PETRI_PLACES=457, PETRI_TRANSITIONS=704} [2024-11-07 15:41:17,108 INFO L277 CegarLoopForPetriNet]: 444 programPoint places, 13 predicate places. [2024-11-07 15:41:17,108 INFO L471 AbstractCegarLoop]: Abstraction has has 457 places, 704 transitions, 2871 flow [2024-11-07 15:41:17,109 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 15:41:17,109 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:41:17,110 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] [2024-11-07 15:41:17,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 15:41:17,110 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-07 15:41:17,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:41:17,110 INFO L85 PathProgramCache]: Analyzing trace with hash 91996484, now seen corresponding path program 1 times [2024-11-07 15:41:17,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:41:17,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934537175] [2024-11-07 15:41:17,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:41:17,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:41:17,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:41:17,395 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 15:41:17,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:41:17,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934537175] [2024-11-07 15:41:17,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934537175] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:41:17,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:41:17,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:41:17,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698510692] [2024-11-07 15:41:17,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:41:17,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:41:17,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:41:17,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:41:17,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:41:17,767 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 299 out of 472 [2024-11-07 15:41:17,769 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 457 places, 704 transitions, 2871 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 15:41:17,769 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:41:17,769 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 299 of 472 [2024-11-07 15:41:17,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:41:20,910 INFO L124 PetriNetUnfolderBase]: 5975/22696 cut-off events. [2024-11-07 15:41:20,910 INFO L125 PetriNetUnfolderBase]: For 7282/7340 co-relation queries the response was YES. [2024-11-07 15:41:20,950 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43653 conditions, 22696 events. 5975/22696 cut-off events. For 7282/7340 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 232087 event pairs, 3928 based on Foata normal form. 0/20767 useless extension candidates. Maximal degree in co-relation 43106. Up to 11147 conditions per place. [2024-11-07 15:41:21,000 INFO L140 encePairwiseOnDemand]: 419/472 looper letters, 437 selfloop transitions, 171 changer transitions 0/908 dead transitions. [2024-11-07 15:41:21,000 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 461 places, 908 transitions, 5007 flow [2024-11-07 15:41:21,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:41:21,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:41:21,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2144 transitions. [2024-11-07 15:41:21,004 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7570621468926554 [2024-11-07 15:41:21,004 INFO L175 Difference]: Start difference. First operand has 457 places, 704 transitions, 2871 flow. Second operand 6 states and 2144 transitions. [2024-11-07 15:41:21,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 461 places, 908 transitions, 5007 flow [2024-11-07 15:41:21,019 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 461 places, 908 transitions, 4815 flow, removed 96 selfloop flow, removed 0 redundant places. [2024-11-07 15:41:21,026 INFO L231 Difference]: Finished difference. Result has 466 places, 868 transitions, 4295 flow [2024-11-07 15:41:21,027 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=2677, PETRI_DIFFERENCE_MINUEND_PLACES=456, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=703, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=652, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4295, PETRI_PLACES=466, PETRI_TRANSITIONS=868} [2024-11-07 15:41:21,028 INFO L277 CegarLoopForPetriNet]: 444 programPoint places, 22 predicate places. [2024-11-07 15:41:21,028 INFO L471 AbstractCegarLoop]: Abstraction has has 466 places, 868 transitions, 4295 flow [2024-11-07 15:41:21,029 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 15:41:21,029 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:41:21,029 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] [2024-11-07 15:41:21,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 15:41:21,029 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-07 15:41:21,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:41:21,030 INFO L85 PathProgramCache]: Analyzing trace with hash -523586412, now seen corresponding path program 1 times [2024-11-07 15:41:21,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:41:21,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33771856] [2024-11-07 15:41:21,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:41:21,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:41:21,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:41:21,457 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 15:41:21,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:41:21,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33771856] [2024-11-07 15:41:21,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33771856] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:41:21,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:41:21,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:41:21,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274598655] [2024-11-07 15:41:21,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:41:21,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:41:21,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:41:21,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:41:21,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:41:22,051 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 295 out of 472 [2024-11-07 15:41:22,053 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 466 places, 868 transitions, 4295 flow. Second operand has 6 states, 6 states have (on average 299.1666666666667) internal successors, (1795), 6 states have internal predecessors, (1795), 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 15:41:22,054 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:41:22,054 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 295 of 472 [2024-11-07 15:41:22,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:41:25,400 INFO L124 PetriNetUnfolderBase]: 6422/23877 cut-off events. [2024-11-07 15:41:25,400 INFO L125 PetriNetUnfolderBase]: For 13678/13798 co-relation queries the response was YES. [2024-11-07 15:41:25,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51733 conditions, 23877 events. 6422/23877 cut-off events. For 13678/13798 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 244834 event pairs, 3870 based on Foata normal form. 0/21861 useless extension candidates. Maximal degree in co-relation 51106. Up to 12188 conditions per place. [2024-11-07 15:41:25,525 INFO L140 encePairwiseOnDemand]: 425/472 looper letters, 613 selfloop transitions, 166 changer transitions 0/1073 dead transitions. [2024-11-07 15:41:25,525 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 471 places, 1073 transitions, 7095 flow [2024-11-07 15:41:25,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:41:25,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:41:25,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2124 transitions. [2024-11-07 15:41:25,533 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.75 [2024-11-07 15:41:25,537 INFO L175 Difference]: Start difference. First operand has 466 places, 868 transitions, 4295 flow. Second operand 6 states and 2124 transitions. [2024-11-07 15:41:25,537 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 471 places, 1073 transitions, 7095 flow [2024-11-07 15:41:25,596 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 471 places, 1073 transitions, 6583 flow, removed 256 selfloop flow, removed 0 redundant places. [2024-11-07 15:41:25,617 INFO L231 Difference]: Finished difference. Result has 476 places, 1033 transitions, 5701 flow [2024-11-07 15:41:25,618 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=3783, PETRI_DIFFERENCE_MINUEND_PLACES=466, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=868, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=822, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5701, PETRI_PLACES=476, PETRI_TRANSITIONS=1033} [2024-11-07 15:41:25,623 INFO L277 CegarLoopForPetriNet]: 444 programPoint places, 32 predicate places. [2024-11-07 15:41:25,623 INFO L471 AbstractCegarLoop]: Abstraction has has 476 places, 1033 transitions, 5701 flow [2024-11-07 15:41:25,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 299.1666666666667) internal successors, (1795), 6 states have internal predecessors, (1795), 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 15:41:25,624 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:41:25,624 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-11-07 15:41:25,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 15:41:25,625 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-07 15:41:25,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:41:25,625 INFO L85 PathProgramCache]: Analyzing trace with hash 527808276, now seen corresponding path program 1 times [2024-11-07 15:41:25,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:41:25,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651313317] [2024-11-07 15:41:25,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:41:25,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:41:25,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 15:41:25,681 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 15:41:25,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 15:41:25,743 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 15:41:25,743 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-07 15:41:25,744 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (39 of 40 remaining) [2024-11-07 15:41:25,749 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (38 of 40 remaining) [2024-11-07 15:41:25,751 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (37 of 40 remaining) [2024-11-07 15:41:25,751 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (36 of 40 remaining) [2024-11-07 15:41:25,751 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (35 of 40 remaining) [2024-11-07 15:41:25,751 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (34 of 40 remaining) [2024-11-07 15:41:25,751 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (33 of 40 remaining) [2024-11-07 15:41:25,751 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (32 of 40 remaining) [2024-11-07 15:41:25,752 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (31 of 40 remaining) [2024-11-07 15:41:25,752 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (30 of 40 remaining) [2024-11-07 15:41:25,752 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (29 of 40 remaining) [2024-11-07 15:41:25,752 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (28 of 40 remaining) [2024-11-07 15:41:25,752 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (27 of 40 remaining) [2024-11-07 15:41:25,752 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (26 of 40 remaining) [2024-11-07 15:41:25,752 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (25 of 40 remaining) [2024-11-07 15:41:25,752 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (24 of 40 remaining) [2024-11-07 15:41:25,752 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (23 of 40 remaining) [2024-11-07 15:41:25,752 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (22 of 40 remaining) [2024-11-07 15:41:25,752 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (21 of 40 remaining) [2024-11-07 15:41:25,752 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (20 of 40 remaining) [2024-11-07 15:41:25,752 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (19 of 40 remaining) [2024-11-07 15:41:25,753 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (18 of 40 remaining) [2024-11-07 15:41:25,753 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (17 of 40 remaining) [2024-11-07 15:41:25,753 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (16 of 40 remaining) [2024-11-07 15:41:25,753 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (15 of 40 remaining) [2024-11-07 15:41:25,753 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9ASSERT_VIOLATIONDATA_RACE (14 of 40 remaining) [2024-11-07 15:41:25,753 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (13 of 40 remaining) [2024-11-07 15:41:25,753 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (12 of 40 remaining) [2024-11-07 15:41:25,753 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (11 of 40 remaining) [2024-11-07 15:41:25,753 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (10 of 40 remaining) [2024-11-07 15:41:25,753 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (9 of 40 remaining) [2024-11-07 15:41:25,753 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (8 of 40 remaining) [2024-11-07 15:41:25,753 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 40 remaining) [2024-11-07 15:41:25,753 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (6 of 40 remaining) [2024-11-07 15:41:25,754 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (5 of 40 remaining) [2024-11-07 15:41:25,754 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9ASSERT_VIOLATIONDATA_RACE (4 of 40 remaining) [2024-11-07 15:41:25,754 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (3 of 40 remaining) [2024-11-07 15:41:25,754 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (2 of 40 remaining) [2024-11-07 15:41:25,754 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (1 of 40 remaining) [2024-11-07 15:41:25,754 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (0 of 40 remaining) [2024-11-07 15:41:25,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 15:41:25,755 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-07 15:41:25,757 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-07 15:41:25,758 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-07 15:41:25,841 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-07 15:41:25,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 597 places, 637 transitions, 1290 flow [2024-11-07 15:41:26,065 INFO L124 PetriNetUnfolderBase]: 81/1109 cut-off events. [2024-11-07 15:41:26,065 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-07 15:41:26,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1121 conditions, 1109 events. 81/1109 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 5052 event pairs, 0 based on Foata normal form. 0/954 useless extension candidates. Maximal degree in co-relation 696. Up to 12 conditions per place. [2024-11-07 15:41:26,081 INFO L82 GeneralOperation]: Start removeDead. Operand has 597 places, 637 transitions, 1290 flow [2024-11-07 15:41:26,091 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 597 places, 637 transitions, 1290 flow [2024-11-07 15:41:26,092 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 15:41:26,093 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;@6af24db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 15:41:26,093 INFO L334 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2024-11-07 15:41:26,096 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 15:41:26,097 INFO L124 PetriNetUnfolderBase]: 0/40 cut-off events. [2024-11-07 15:41:26,097 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 15:41:26,097 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:41:26,097 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] [2024-11-07 15:41:26,097 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-07 15:41:26,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:41:26,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1298180073, now seen corresponding path program 1 times [2024-11-07 15:41:26,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:41:26,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099466515] [2024-11-07 15:41:26,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:41:26,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:41:26,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:41:26,268 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 15:41:26,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:41:26,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099466515] [2024-11-07 15:41:26,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099466515] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:41:26,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:41:26,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:41:26,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356159916] [2024-11-07 15:41:26,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:41:26,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:41:26,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:41:26,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:41:26,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:41:26,801 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 396 out of 637 [2024-11-07 15:41:26,804 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 597 places, 637 transitions, 1290 flow. Second operand has 6 states, 6 states have (on average 397.3333333333333) internal successors, (2384), 6 states have internal predecessors, (2384), 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 15:41:26,804 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:41:26,804 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 396 of 637 [2024-11-07 15:41:26,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand