./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_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_92-evilcollapse_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', '6efa0097353392a416215c2535cfc6cdc34364d9b0eb2844e37da9edef467642'] 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_92-evilcollapse_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 6efa0097353392a416215c2535cfc6cdc34364d9b0eb2844e37da9edef467642 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 15:41:02,142 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 15:41:02,219 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-07 15:41:02,225 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 15:41:02,225 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 15:41:02,244 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 15:41:02,244 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 15:41:02,245 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 15:41:02,245 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 15:41:02,245 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 15:41:02,245 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 15:41:02,246 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 15:41:02,246 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 15:41:02,246 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 15:41:02,246 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 15:41:02,246 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 15:41:02,246 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 15:41:02,246 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 15:41:02,246 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 15:41:02,247 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 15:41:02,247 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 15:41:02,247 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 15:41:02,247 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-07 15:41:02,247 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 15:41:02,247 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 15:41:02,247 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 15:41:02,247 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 15:41:02,248 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 15:41:02,248 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 15:41:02,248 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 15:41:02,248 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 15:41:02,249 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 15:41:02,249 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 15:41:02,249 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 15:41:02,250 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 15:41:02,250 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 15:41:02,250 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 15:41:02,250 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 15:41:02,250 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 15:41:02,250 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 15:41:02,250 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 15:41:02,250 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 -> 6efa0097353392a416215c2535cfc6cdc34364d9b0eb2844e37da9edef467642 [2024-11-07 15:41:02,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 15:41:02,549 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 15:41:02,552 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 15:41:02,552 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 15:41:02,553 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 15:41:02,554 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing.i [2024-11-07 15:41:03,904 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 15:41:04,202 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 15:41:04,203 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing.i [2024-11-07 15:41:04,221 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cebce38eb/4fc86d741c7547d3b06cfa7be74ee4b6/FLAG4d2d1e5a3 [2024-11-07 15:41:04,237 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cebce38eb/4fc86d741c7547d3b06cfa7be74ee4b6 [2024-11-07 15:41:04,240 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 15:41:04,242 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 15:41:04,243 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 15:41:04,244 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 15:41:04,248 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 15:41:04,249 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:41:04" (1/1) ... [2024-11-07 15:41:04,250 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b8dbe40 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 15:41:04,250 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:41:04" (1/1) ... [2024-11-07 15:41:04,292 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 15:41:04,641 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-07 15:41:04,642 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-07 15:41:04,643 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-07 15:41:04,644 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-07 15:41:04,676 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 15:41:04,705 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 15:41:04,768 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-07 15:41:04,773 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-07 15:41:04,773 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-07 15:41:04,774 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-07 15:41:04,796 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 15:41:04,864 INFO L204 MainTranslator]: Completed translation [2024-11-07 15:41:04,866 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:04 WrapperNode [2024-11-07 15:41:04,867 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 15:41:04,868 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 15:41:04,868 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 15:41:04,868 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 15:41:04,874 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:04" (1/1) ... [2024-11-07 15:41:04,905 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:04" (1/1) ... [2024-11-07 15:41:04,954 INFO L138 Inliner]: procedures = 280, calls = 136, calls flagged for inlining = 12, calls inlined = 13, statements flattened = 456 [2024-11-07 15:41:04,956 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 15:41:04,960 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 15:41:04,960 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 15:41:04,960 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 15:41:04,967 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:04" (1/1) ... [2024-11-07 15:41:04,968 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:04" (1/1) ... [2024-11-07 15:41:04,977 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:04" (1/1) ... [2024-11-07 15:41:04,981 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:04" (1/1) ... [2024-11-07 15:41:05,018 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:04" (1/1) ... [2024-11-07 15:41:05,026 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:04" (1/1) ... [2024-11-07 15:41:05,033 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:04" (1/1) ... [2024-11-07 15:41:05,039 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:04" (1/1) ... [2024-11-07 15:41:05,043 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 15:41:05,044 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 15:41:05,045 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 15:41:05,045 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 15:41:05,046 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:04" (1/1) ... [2024-11-07 15:41:05,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 15:41:05,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:41:05,099 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 15:41:05,102 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 15:41:05,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-07 15:41:05,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-07 15:41:05,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-07 15:41:05,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-07 15:41:05,126 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-07 15:41:05,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-07 15:41:05,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-07 15:41:05,126 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-07 15:41:05,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-07 15:41:05,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 15:41:05,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-07 15:41:05,127 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-07 15:41:05,127 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-07 15:41:05,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-07 15:41:05,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 15:41:05,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 15:41:05,129 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 15:41:05,297 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 15:41:05,299 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 15:41:06,138 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 15:41:06,138 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 15:41:06,183 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 15:41:06,185 INFO L316 CfgBuilder]: Removed 16 assume(true) statements. [2024-11-07 15:41:06,185 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:41:06 BoogieIcfgContainer [2024-11-07 15:41:06,186 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 15:41:06,188 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 15:41:06,188 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 15:41:06,193 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 15:41:06,193 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:41:04" (1/3) ... [2024-11-07 15:41:06,194 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@525ae4a2 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 15:41:06,194 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:41:04" (2/3) ... [2024-11-07 15:41:06,194 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@525ae4a2 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 15:41:06,194 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 15:41:06,195 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_92-evilcollapse_racing.i [2024-11-07 15:41:06,210 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 15:41:06,210 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 23 error locations. [2024-11-07 15:41:06,210 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 15:41:06,389 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-07 15:41:06,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 477 places, 501 transitions, 1009 flow [2024-11-07 15:41:06,650 INFO L124 PetriNetUnfolderBase]: 29/533 cut-off events. [2024-11-07 15:41:06,652 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-07 15:41:06,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 538 conditions, 533 events. 29/533 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 944 event pairs, 0 based on Foata normal form. 0/476 useless extension candidates. Maximal degree in co-relation 348. Up to 4 conditions per place. [2024-11-07 15:41:06,663 INFO L82 GeneralOperation]: Start removeDead. Operand has 477 places, 501 transitions, 1009 flow [2024-11-07 15:41:06,673 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 477 places, 501 transitions, 1009 flow [2024-11-07 15:41:06,682 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 15:41:06,702 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;@76979f10, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 15:41:06,703 INFO L334 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2024-11-07 15:41:06,734 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 15:41:06,734 INFO L124 PetriNetUnfolderBase]: 1/121 cut-off events. [2024-11-07 15:41:06,734 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 15:41:06,734 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:41:06,736 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:41:06,737 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-07 15:41:06,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:41:06,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1831000005, now seen corresponding path program 1 times [2024-11-07 15:41:06,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:41:06,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716505796] [2024-11-07 15:41:06,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:41:06,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:41:06,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:41:08,062 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 15:41:08,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:41:08,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716505796] [2024-11-07 15:41:08,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716505796] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:41:08,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:41:08,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:41:08,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660681131] [2024-11-07 15:41:08,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:41:08,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:41:08,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:41:08,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:41:08,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:41:08,805 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 371 out of 501 [2024-11-07 15:41:08,816 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 477 places, 501 transitions, 1009 flow. Second operand has 6 states, 6 states have (on average 372.3333333333333) internal successors, (2234), 6 states have internal predecessors, (2234), 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 15:41:08,816 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:41:08,816 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 371 of 501 [2024-11-07 15:41:08,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:41:09,413 INFO L124 PetriNetUnfolderBase]: 319/1693 cut-off events. [2024-11-07 15:41:09,414 INFO L125 PetriNetUnfolderBase]: For 15/23 co-relation queries the response was YES. [2024-11-07 15:41:09,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2399 conditions, 1693 events. 319/1693 cut-off events. For 15/23 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 9572 event pairs, 288 based on Foata normal form. 184/1741 useless extension candidates. Maximal degree in co-relation 1972. Up to 690 conditions per place. [2024-11-07 15:41:09,426 INFO L140 encePairwiseOnDemand]: 468/501 looper letters, 96 selfloop transitions, 10 changer transitions 2/476 dead transitions. [2024-11-07 15:41:09,426 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 478 places, 476 transitions, 1171 flow [2024-11-07 15:41:09,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:41:09,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:41:09,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2355 transitions. [2024-11-07 15:41:09,456 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.783433133732535 [2024-11-07 15:41:09,458 INFO L175 Difference]: Start difference. First operand has 477 places, 501 transitions, 1009 flow. Second operand 6 states and 2355 transitions. [2024-11-07 15:41:09,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 478 places, 476 transitions, 1171 flow [2024-11-07 15:41:09,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 478 places, 476 transitions, 1171 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 15:41:09,484 INFO L231 Difference]: Finished difference. Result has 478 places, 474 transitions, 975 flow [2024-11-07 15:41:09,487 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=501, PETRI_DIFFERENCE_MINUEND_FLOW=959, PETRI_DIFFERENCE_MINUEND_PLACES=473, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=476, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=466, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=975, PETRI_PLACES=478, PETRI_TRANSITIONS=474} [2024-11-07 15:41:09,491 INFO L277 CegarLoopForPetriNet]: 477 programPoint places, 1 predicate places. [2024-11-07 15:41:09,492 INFO L471 AbstractCegarLoop]: Abstraction has has 478 places, 474 transitions, 975 flow [2024-11-07 15:41:09,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 372.3333333333333) internal successors, (2234), 6 states have internal predecessors, (2234), 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 15:41:09,494 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:41:09,494 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:41:09,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 15:41:09,495 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-07 15:41:09,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:41:09,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1041739976, now seen corresponding path program 1 times [2024-11-07 15:41:09,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:41:09,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45234751] [2024-11-07 15:41:09,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:41:09,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:41:09,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:41:10,189 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 15:41:10,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:41:10,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45234751] [2024-11-07 15:41:10,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45234751] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:41:10,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:41:10,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:41:10,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987259861] [2024-11-07 15:41:10,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:41:10,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:41:10,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:41:10,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:41:10,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:41:10,755 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 371 out of 501 [2024-11-07 15:41:10,759 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 478 places, 474 transitions, 975 flow. Second operand has 6 states, 6 states have (on average 372.3333333333333) internal successors, (2234), 6 states have internal predecessors, (2234), 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 15:41:10,759 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:41:10,759 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 371 of 501 [2024-11-07 15:41:10,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:41:11,043 INFO L124 PetriNetUnfolderBase]: 319/1689 cut-off events. [2024-11-07 15:41:11,044 INFO L125 PetriNetUnfolderBase]: For 7/15 co-relation queries the response was YES. [2024-11-07 15:41:11,047 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2406 conditions, 1689 events. 319/1689 cut-off events. For 7/15 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 9566 event pairs, 288 based on Foata normal form. 0/1557 useless extension candidates. Maximal degree in co-relation 2231. Up to 690 conditions per place. [2024-11-07 15:41:11,054 INFO L140 encePairwiseOnDemand]: 489/501 looper letters, 96 selfloop transitions, 10 changer transitions 0/472 dead transitions. [2024-11-07 15:41:11,054 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 479 places, 472 transitions, 1183 flow [2024-11-07 15:41:11,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:41:11,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:41:11,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2334 transitions. [2024-11-07 15:41:11,087 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7764471057884231 [2024-11-07 15:41:11,087 INFO L175 Difference]: Start difference. First operand has 478 places, 474 transitions, 975 flow. Second operand 6 states and 2334 transitions. [2024-11-07 15:41:11,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 479 places, 472 transitions, 1183 flow [2024-11-07 15:41:11,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 474 places, 472 transitions, 1163 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-07 15:41:11,099 INFO L231 Difference]: Finished difference. Result has 474 places, 472 transitions, 971 flow [2024-11-07 15:41:11,100 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=501, PETRI_DIFFERENCE_MINUEND_FLOW=951, PETRI_DIFFERENCE_MINUEND_PLACES=469, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=472, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=462, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=971, PETRI_PLACES=474, PETRI_TRANSITIONS=472} [2024-11-07 15:41:11,100 INFO L277 CegarLoopForPetriNet]: 477 programPoint places, -3 predicate places. [2024-11-07 15:41:11,101 INFO L471 AbstractCegarLoop]: Abstraction has has 474 places, 472 transitions, 971 flow [2024-11-07 15:41:11,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 372.3333333333333) internal successors, (2234), 6 states have internal predecessors, (2234), 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 15:41:11,102 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:41:11,103 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:41:11,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 15:41:11,103 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-07 15:41:11,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:41:11,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1261717891, now seen corresponding path program 1 times [2024-11-07 15:41:11,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:41:11,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083336759] [2024-11-07 15:41:11,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:41:11,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:41:11,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:41:11,247 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 15:41:11,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:41:11,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083336759] [2024-11-07 15:41:11,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083336759] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:41:11,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:41:11,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 15:41:11,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667766751] [2024-11-07 15:41:11,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:41:11,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:41:11,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:41:11,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:41:11,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:41:11,274 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 463 out of 501 [2024-11-07 15:41:11,277 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 474 places, 472 transitions, 971 flow. Second operand has 3 states, 3 states have (on average 464.3333333333333) internal successors, (1393), 3 states have internal predecessors, (1393), 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 15:41:11,277 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:41:11,277 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 463 of 501 [2024-11-07 15:41:11,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:41:11,401 INFO L124 PetriNetUnfolderBase]: 15/650 cut-off events. [2024-11-07 15:41:11,401 INFO L125 PetriNetUnfolderBase]: For 4/5 co-relation queries the response was YES. [2024-11-07 15:41:11,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 711 conditions, 650 events. 15/650 cut-off events. For 4/5 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1439 event pairs, 8 based on Foata normal form. 1/607 useless extension candidates. Maximal degree in co-relation 487. Up to 34 conditions per place. [2024-11-07 15:41:11,405 INFO L140 encePairwiseOnDemand]: 498/501 looper letters, 15 selfloop transitions, 2 changer transitions 0/473 dead transitions. [2024-11-07 15:41:11,405 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 476 places, 473 transitions, 1007 flow [2024-11-07 15:41:11,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:41:11,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:41:11,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1407 transitions. [2024-11-07 15:41:11,409 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.936127744510978 [2024-11-07 15:41:11,409 INFO L175 Difference]: Start difference. First operand has 474 places, 472 transitions, 971 flow. Second operand 3 states and 1407 transitions. [2024-11-07 15:41:11,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 476 places, 473 transitions, 1007 flow [2024-11-07 15:41:11,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 471 places, 473 transitions, 987 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-07 15:41:11,423 INFO L231 Difference]: Finished difference. Result has 472 places, 473 transitions, 963 flow [2024-11-07 15:41:11,424 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=501, PETRI_DIFFERENCE_MINUEND_FLOW=951, PETRI_DIFFERENCE_MINUEND_PLACES=469, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=472, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=470, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=963, PETRI_PLACES=472, PETRI_TRANSITIONS=473} [2024-11-07 15:41:11,425 INFO L277 CegarLoopForPetriNet]: 477 programPoint places, -5 predicate places. [2024-11-07 15:41:11,425 INFO L471 AbstractCegarLoop]: Abstraction has has 472 places, 473 transitions, 963 flow [2024-11-07 15:41:11,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 464.3333333333333) internal successors, (1393), 3 states have internal predecessors, (1393), 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 15:41:11,427 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:41:11,427 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:41:11,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 15:41:11,427 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-07 15:41:11,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:41:11,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1440974403, now seen corresponding path program 1 times [2024-11-07 15:41:11,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:41:11,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835369203] [2024-11-07 15:41:11,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:41:11,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:41:11,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:41:12,088 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 15:41:12,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:41:12,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835369203] [2024-11-07 15:41:12,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835369203] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:41:12,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:41:12,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:41:12,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332394743] [2024-11-07 15:41:12,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:41:12,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:41:12,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:41:12,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:41:12,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:41:12,535 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 501 [2024-11-07 15:41:12,539 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 472 places, 473 transitions, 963 flow. Second operand has 6 states, 6 states have (on average 372.6666666666667) internal successors, (2236), 6 states have internal predecessors, (2236), 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 15:41:12,539 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:41:12,539 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 501 [2024-11-07 15:41:12,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:41:13,023 INFO L124 PetriNetUnfolderBase]: 320/1811 cut-off events. [2024-11-07 15:41:13,024 INFO L125 PetriNetUnfolderBase]: For 8/16 co-relation queries the response was YES. [2024-11-07 15:41:13,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2572 conditions, 1811 events. 320/1811 cut-off events. For 8/16 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 9972 event pairs, 288 based on Foata normal form. 0/1675 useless extension candidates. Maximal degree in co-relation 2295. Up to 738 conditions per place. [2024-11-07 15:41:13,036 INFO L140 encePairwiseOnDemand]: 495/501 looper letters, 103 selfloop transitions, 5 changer transitions 0/472 dead transitions. [2024-11-07 15:41:13,037 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 476 places, 472 transitions, 1177 flow [2024-11-07 15:41:13,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:41:13,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:41:13,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2329 transitions. [2024-11-07 15:41:13,044 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7747837658017299 [2024-11-07 15:41:13,044 INFO L175 Difference]: Start difference. First operand has 472 places, 473 transitions, 963 flow. Second operand 6 states and 2329 transitions. [2024-11-07 15:41:13,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 476 places, 472 transitions, 1177 flow [2024-11-07 15:41:13,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 475 places, 472 transitions, 1175 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 15:41:13,055 INFO L231 Difference]: Finished difference. Result has 475 places, 472 transitions, 969 flow [2024-11-07 15:41:13,057 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=501, PETRI_DIFFERENCE_MINUEND_FLOW=959, PETRI_DIFFERENCE_MINUEND_PLACES=470, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=472, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=467, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=969, PETRI_PLACES=475, PETRI_TRANSITIONS=472} [2024-11-07 15:41:13,058 INFO L277 CegarLoopForPetriNet]: 477 programPoint places, -2 predicate places. [2024-11-07 15:41:13,059 INFO L471 AbstractCegarLoop]: Abstraction has has 475 places, 472 transitions, 969 flow [2024-11-07 15:41:13,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 372.6666666666667) internal successors, (2236), 6 states have internal predecessors, (2236), 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 15:41:13,061 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:41:13,061 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:41:13,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 15:41:13,061 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-07 15:41:13,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:41:13,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1448542171, now seen corresponding path program 1 times [2024-11-07 15:41:13,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:41:13,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836948260] [2024-11-07 15:41:13,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:41:13,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:41:13,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:41:13,185 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:41:13,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:41:13,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836948260] [2024-11-07 15:41:13,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836948260] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:41:13,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:41:13,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 15:41:13,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972017960] [2024-11-07 15:41:13,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:41:13,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:41:13,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:41:13,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:41:13,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:41:13,204 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 463 out of 501 [2024-11-07 15:41:13,206 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 475 places, 472 transitions, 969 flow. Second operand has 3 states, 3 states have (on average 464.3333333333333) internal successors, (1393), 3 states have internal predecessors, (1393), 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 15:41:13,206 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:41:13,206 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 463 of 501 [2024-11-07 15:41:13,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:41:13,338 INFO L124 PetriNetUnfolderBase]: 15/836 cut-off events. [2024-11-07 15:41:13,339 INFO L125 PetriNetUnfolderBase]: For 4/5 co-relation queries the response was YES. [2024-11-07 15:41:13,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 907 conditions, 836 events. 15/836 cut-off events. For 4/5 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1661 event pairs, 8 based on Foata normal form. 2/788 useless extension candidates. Maximal degree in co-relation 682. Up to 38 conditions per place. [2024-11-07 15:41:13,343 INFO L140 encePairwiseOnDemand]: 498/501 looper letters, 15 selfloop transitions, 2 changer transitions 0/473 dead transitions. [2024-11-07 15:41:13,343 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 477 places, 473 transitions, 1005 flow [2024-11-07 15:41:13,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:41:13,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:41:13,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1407 transitions. [2024-11-07 15:41:13,347 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.936127744510978 [2024-11-07 15:41:13,347 INFO L175 Difference]: Start difference. First operand has 475 places, 472 transitions, 969 flow. Second operand 3 states and 1407 transitions. [2024-11-07 15:41:13,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 477 places, 473 transitions, 1005 flow [2024-11-07 15:41:13,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 472 places, 473 transitions, 995 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-07 15:41:13,359 INFO L231 Difference]: Finished difference. Result has 473 places, 473 transitions, 971 flow [2024-11-07 15:41:13,360 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=501, PETRI_DIFFERENCE_MINUEND_FLOW=959, PETRI_DIFFERENCE_MINUEND_PLACES=470, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=472, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=470, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=971, PETRI_PLACES=473, PETRI_TRANSITIONS=473} [2024-11-07 15:41:13,361 INFO L277 CegarLoopForPetriNet]: 477 programPoint places, -4 predicate places. [2024-11-07 15:41:13,361 INFO L471 AbstractCegarLoop]: Abstraction has has 473 places, 473 transitions, 971 flow [2024-11-07 15:41:13,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 464.3333333333333) internal successors, (1393), 3 states have internal predecessors, (1393), 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 15:41:13,362 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:41:13,362 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:41:13,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 15:41:13,362 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-07 15:41:13,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:41:13,363 INFO L85 PathProgramCache]: Analyzing trace with hash -977353756, now seen corresponding path program 1 times [2024-11-07 15:41:13,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:41:13,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289286180] [2024-11-07 15:41:13,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:41:13,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:41:13,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:41:13,995 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 15:41:13,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:41:13,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289286180] [2024-11-07 15:41:13,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289286180] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:41:13,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:41:13,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:41:13,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876252657] [2024-11-07 15:41:13,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:41:13,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:41:13,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:41:13,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:41:13,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:41:14,854 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 407 out of 501 [2024-11-07 15:41:14,858 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 473 places, 473 transitions, 971 flow. Second operand has 6 states, 6 states have (on average 411.5) internal successors, (2469), 6 states have internal predecessors, (2469), 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 15:41:14,858 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:41:14,858 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 407 of 501 [2024-11-07 15:41:14,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:41:15,148 INFO L124 PetriNetUnfolderBase]: 83/1150 cut-off events. [2024-11-07 15:41:15,149 INFO L125 PetriNetUnfolderBase]: For 6/10 co-relation queries the response was YES. [2024-11-07 15:41:15,151 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1507 conditions, 1150 events. 83/1150 cut-off events. For 6/10 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 3553 event pairs, 64 based on Foata normal form. 0/1063 useless extension candidates. Maximal degree in co-relation 963. Up to 315 conditions per place. [2024-11-07 15:41:15,154 INFO L140 encePairwiseOnDemand]: 495/501 looper letters, 66 selfloop transitions, 5 changer transitions 0/472 dead transitions. [2024-11-07 15:41:15,154 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 477 places, 472 transitions, 1111 flow [2024-11-07 15:41:15,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:41:15,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:41:15,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2514 transitions. [2024-11-07 15:41:15,160 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8363273453093812 [2024-11-07 15:41:15,160 INFO L175 Difference]: Start difference. First operand has 473 places, 473 transitions, 971 flow. Second operand 6 states and 2514 transitions. [2024-11-07 15:41:15,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 477 places, 472 transitions, 1111 flow [2024-11-07 15:41:15,163 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 476 places, 472 transitions, 1109 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 15:41:15,169 INFO L231 Difference]: Finished difference. Result has 476 places, 472 transitions, 977 flow [2024-11-07 15:41:15,169 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=501, PETRI_DIFFERENCE_MINUEND_FLOW=967, PETRI_DIFFERENCE_MINUEND_PLACES=471, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=472, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=467, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=977, PETRI_PLACES=476, PETRI_TRANSITIONS=472} [2024-11-07 15:41:15,172 INFO L277 CegarLoopForPetriNet]: 477 programPoint places, -1 predicate places. [2024-11-07 15:41:15,172 INFO L471 AbstractCegarLoop]: Abstraction has has 476 places, 472 transitions, 977 flow [2024-11-07 15:41:15,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 411.5) internal successors, (2469), 6 states have internal predecessors, (2469), 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 15:41:15,174 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:41:15,174 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:41:15,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 15:41:15,174 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-07 15:41:15,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:41:15,175 INFO L85 PathProgramCache]: Analyzing trace with hash 720839725, now seen corresponding path program 1 times [2024-11-07 15:41:15,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:41:15,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008296414] [2024-11-07 15:41:15,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:41:15,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:41:15,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:41:15,735 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 15:41:15,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:41:15,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008296414] [2024-11-07 15:41:15,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008296414] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:41:15,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:41:15,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:41:15,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960113803] [2024-11-07 15:41:15,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:41:15,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:41:15,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:41:15,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:41:15,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:41:16,156 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 501 [2024-11-07 15:41:16,159 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 476 places, 472 transitions, 977 flow. Second operand has 6 states, 6 states have (on average 375.3333333333333) internal successors, (2252), 6 states have internal predecessors, (2252), 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 15:41:16,159 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:41:16,159 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 501 [2024-11-07 15:41:16,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:41:16,663 INFO L124 PetriNetUnfolderBase]: 320/1991 cut-off events. [2024-11-07 15:41:16,663 INFO L125 PetriNetUnfolderBase]: For 11/19 co-relation queries the response was YES. [2024-11-07 15:41:16,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2856 conditions, 1991 events. 320/1991 cut-off events. For 11/19 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 10592 event pairs, 288 based on Foata normal form. 0/1855 useless extension candidates. Maximal degree in co-relation 2338. Up to 804 conditions per place. [2024-11-07 15:41:16,675 INFO L140 encePairwiseOnDemand]: 495/501 looper letters, 103 selfloop transitions, 5 changer transitions 0/471 dead transitions. [2024-11-07 15:41:16,675 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 480 places, 471 transitions, 1191 flow [2024-11-07 15:41:16,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:41:16,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:41:16,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2329 transitions. [2024-11-07 15:41:16,681 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7747837658017299 [2024-11-07 15:41:16,682 INFO L175 Difference]: Start difference. First operand has 476 places, 472 transitions, 977 flow. Second operand 6 states and 2329 transitions. [2024-11-07 15:41:16,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 480 places, 471 transitions, 1191 flow [2024-11-07 15:41:16,686 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 475 places, 471 transitions, 1181 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-07 15:41:16,691 INFO L231 Difference]: Finished difference. Result has 475 places, 471 transitions, 975 flow [2024-11-07 15:41:16,692 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=501, PETRI_DIFFERENCE_MINUEND_FLOW=965, PETRI_DIFFERENCE_MINUEND_PLACES=470, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=471, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=466, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=975, PETRI_PLACES=475, PETRI_TRANSITIONS=471} [2024-11-07 15:41:16,694 INFO L277 CegarLoopForPetriNet]: 477 programPoint places, -2 predicate places. [2024-11-07 15:41:16,694 INFO L471 AbstractCegarLoop]: Abstraction has has 475 places, 471 transitions, 975 flow [2024-11-07 15:41:16,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 375.3333333333333) internal successors, (2252), 6 states have internal predecessors, (2252), 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 15:41:16,696 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:41:16,696 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:41:16,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 15:41:16,697 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-07 15:41:16,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:41:16,698 INFO L85 PathProgramCache]: Analyzing trace with hash 385072527, now seen corresponding path program 1 times [2024-11-07 15:41:16,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:41:16,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837771050] [2024-11-07 15:41:16,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:41:16,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:41:16,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:41:17,234 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 15:41:17,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:41:17,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837771050] [2024-11-07 15:41:17,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837771050] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:41:17,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:41:17,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:41:17,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910348973] [2024-11-07 15:41:17,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:41:17,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:41:17,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:41:17,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:41:17,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:41:17,714 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 374 out of 501 [2024-11-07 15:41:17,717 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 475 places, 471 transitions, 975 flow. Second operand has 6 states, 6 states have (on average 380.0) internal successors, (2280), 6 states have internal predecessors, (2280), 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 15:41:17,717 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:41:17,717 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 374 of 501 [2024-11-07 15:41:17,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:41:18,261 INFO L124 PetriNetUnfolderBase]: 320/1987 cut-off events. [2024-11-07 15:41:18,262 INFO L125 PetriNetUnfolderBase]: For 11/19 co-relation queries the response was YES. [2024-11-07 15:41:18,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2836 conditions, 1987 events. 320/1987 cut-off events. For 11/19 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 10568 event pairs, 288 based on Foata normal form. 0/1855 useless extension candidates. Maximal degree in co-relation 2354. Up to 788 conditions per place. [2024-11-07 15:41:18,272 INFO L140 encePairwiseOnDemand]: 495/501 looper letters, 99 selfloop transitions, 5 changer transitions 0/470 dead transitions. [2024-11-07 15:41:18,272 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 479 places, 470 transitions, 1181 flow [2024-11-07 15:41:18,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:41:18,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:41:18,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2349 transitions. [2024-11-07 15:41:18,279 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.781437125748503 [2024-11-07 15:41:18,281 INFO L175 Difference]: Start difference. First operand has 475 places, 471 transitions, 975 flow. Second operand 6 states and 2349 transitions. [2024-11-07 15:41:18,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 479 places, 470 transitions, 1181 flow [2024-11-07 15:41:18,286 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 474 places, 470 transitions, 1171 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-07 15:41:18,292 INFO L231 Difference]: Finished difference. Result has 474 places, 470 transitions, 973 flow [2024-11-07 15:41:18,293 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=501, PETRI_DIFFERENCE_MINUEND_FLOW=963, PETRI_DIFFERENCE_MINUEND_PLACES=469, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=470, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=465, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=973, PETRI_PLACES=474, PETRI_TRANSITIONS=470} [2024-11-07 15:41:18,295 INFO L277 CegarLoopForPetriNet]: 477 programPoint places, -3 predicate places. [2024-11-07 15:41:18,295 INFO L471 AbstractCegarLoop]: Abstraction has has 474 places, 470 transitions, 973 flow [2024-11-07 15:41:18,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 380.0) internal successors, (2280), 6 states have internal predecessors, (2280), 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 15:41:18,297 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:41:18,301 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:41:18,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 15:41:18,301 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-07 15:41:18,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:41:18,302 INFO L85 PathProgramCache]: Analyzing trace with hash 231178017, now seen corresponding path program 1 times [2024-11-07 15:41:18,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:41:18,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526432706] [2024-11-07 15:41:18,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:41:18,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:41:18,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:41:18,864 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 15:41:18,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:41:18,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526432706] [2024-11-07 15:41:18,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526432706] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:41:18,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:41:18,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:41:18,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98044808] [2024-11-07 15:41:18,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:41:18,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:41:18,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:41:18,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:41:18,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:41:19,298 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 374 out of 501 [2024-11-07 15:41:19,301 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 474 places, 470 transitions, 973 flow. Second operand has 6 states, 6 states have (on average 380.0) internal successors, (2280), 6 states have internal predecessors, (2280), 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 15:41:19,302 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:41:19,302 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 374 of 501 [2024-11-07 15:41:19,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:41:19,612 INFO L124 PetriNetUnfolderBase]: 320/1983 cut-off events. [2024-11-07 15:41:19,612 INFO L125 PetriNetUnfolderBase]: For 7/15 co-relation queries the response was YES. [2024-11-07 15:41:19,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2832 conditions, 1983 events. 320/1983 cut-off events. For 7/15 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 10544 event pairs, 288 based on Foata normal form. 0/1855 useless extension candidates. Maximal degree in co-relation 2369. Up to 788 conditions per place. [2024-11-07 15:41:19,623 INFO L140 encePairwiseOnDemand]: 495/501 looper letters, 99 selfloop transitions, 5 changer transitions 0/469 dead transitions. [2024-11-07 15:41:19,623 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 478 places, 469 transitions, 1179 flow [2024-11-07 15:41:19,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:41:19,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:41:19,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2349 transitions. [2024-11-07 15:41:19,628 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.781437125748503 [2024-11-07 15:41:19,629 INFO L175 Difference]: Start difference. First operand has 474 places, 470 transitions, 973 flow. Second operand 6 states and 2349 transitions. [2024-11-07 15:41:19,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 478 places, 469 transitions, 1179 flow [2024-11-07 15:41:19,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 473 places, 469 transitions, 1169 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-07 15:41:19,636 INFO L231 Difference]: Finished difference. Result has 473 places, 469 transitions, 971 flow [2024-11-07 15:41:19,637 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=501, PETRI_DIFFERENCE_MINUEND_FLOW=961, PETRI_DIFFERENCE_MINUEND_PLACES=468, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=469, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=464, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=971, PETRI_PLACES=473, PETRI_TRANSITIONS=469} [2024-11-07 15:41:19,637 INFO L277 CegarLoopForPetriNet]: 477 programPoint places, -4 predicate places. [2024-11-07 15:41:19,637 INFO L471 AbstractCegarLoop]: Abstraction has has 473 places, 469 transitions, 971 flow [2024-11-07 15:41:19,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 380.0) internal successors, (2280), 6 states have internal predecessors, (2280), 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 15:41:19,639 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:41:19,639 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:41:19,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 15:41:19,639 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-07 15:41:19,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:41:19,640 INFO L85 PathProgramCache]: Analyzing trace with hash 653906021, now seen corresponding path program 1 times [2024-11-07 15:41:19,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:41:19,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400570657] [2024-11-07 15:41:19,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:41:19,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:41:19,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:41:20,141 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 15:41:20,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:41:20,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400570657] [2024-11-07 15:41:20,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400570657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:41:20,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:41:20,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:41:20,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512620216] [2024-11-07 15:41:20,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:41:20,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:41:20,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:41:20,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:41:20,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:41:20,531 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 369 out of 501 [2024-11-07 15:41:20,533 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 473 places, 469 transitions, 971 flow. Second operand has 6 states, 6 states have (on average 376.5) internal successors, (2259), 6 states have internal predecessors, (2259), 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 15:41:20,534 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:41:20,534 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 369 of 501 [2024-11-07 15:41:20,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:41:21,005 INFO L124 PetriNetUnfolderBase]: 320/1979 cut-off events. [2024-11-07 15:41:21,006 INFO L125 PetriNetUnfolderBase]: For 11/19 co-relation queries the response was YES. [2024-11-07 15:41:21,009 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2848 conditions, 1979 events. 320/1979 cut-off events. For 11/19 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 10530 event pairs, 288 based on Foata normal form. 0/1855 useless extension candidates. Maximal degree in co-relation 2382. Up to 808 conditions per place. [2024-11-07 15:41:21,015 INFO L140 encePairwiseOnDemand]: 495/501 looper letters, 104 selfloop transitions, 5 changer transitions 0/468 dead transitions. [2024-11-07 15:41:21,015 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 477 places, 468 transitions, 1187 flow [2024-11-07 15:41:21,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:41:21,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:41:21,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2324 transitions. [2024-11-07 15:41:21,020 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7731204258150366 [2024-11-07 15:41:21,020 INFO L175 Difference]: Start difference. First operand has 473 places, 469 transitions, 971 flow. Second operand 6 states and 2324 transitions. [2024-11-07 15:41:21,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 477 places, 468 transitions, 1187 flow [2024-11-07 15:41:21,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 472 places, 468 transitions, 1177 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-07 15:41:21,028 INFO L231 Difference]: Finished difference. Result has 472 places, 468 transitions, 969 flow [2024-11-07 15:41:21,029 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=501, PETRI_DIFFERENCE_MINUEND_FLOW=959, PETRI_DIFFERENCE_MINUEND_PLACES=467, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=468, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=463, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=969, PETRI_PLACES=472, PETRI_TRANSITIONS=468} [2024-11-07 15:41:21,029 INFO L277 CegarLoopForPetriNet]: 477 programPoint places, -5 predicate places. [2024-11-07 15:41:21,029 INFO L471 AbstractCegarLoop]: Abstraction has has 472 places, 468 transitions, 969 flow [2024-11-07 15:41:21,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 376.5) internal successors, (2259), 6 states have internal predecessors, (2259), 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 15:41:21,030 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:41:21,031 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:41:21,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 15:41:21,031 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-07 15:41:21,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:41:21,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1649056957, now seen corresponding path program 1 times [2024-11-07 15:41:21,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:41:21,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049088562] [2024-11-07 15:41:21,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:41:21,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:41:21,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:41:21,226 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:41:21,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:41:21,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049088562] [2024-11-07 15:41:21,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049088562] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 15:41:21,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [788070961] [2024-11-07 15:41:21,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:41:21,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:41:21,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:41:21,230 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 15:41:21,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-07 15:41:21,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:41:21,503 INFO L255 TraceCheckSpWp]: Trace formula consists of 762 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 15:41:21,515 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 15:41:21,704 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:41:21,704 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 15:41:21,864 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:41:21,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [788070961] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 15:41:21,864 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 15:41:21,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-07 15:41:21,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556410048] [2024-11-07 15:41:21,865 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 15:41:21,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 15:41:21,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:41:21,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 15:41:21,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-07 15:41:21,909 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 460 out of 501 [2024-11-07 15:41:21,912 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 472 places, 468 transitions, 969 flow. Second operand has 10 states, 10 states have (on average 461.8) internal successors, (4618), 10 states have internal predecessors, (4618), 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 15:41:21,913 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:41:21,913 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 460 of 501 [2024-11-07 15:41:21,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:41:22,110 INFO L124 PetriNetUnfolderBase]: 15/1000 cut-off events. [2024-11-07 15:41:22,111 INFO L125 PetriNetUnfolderBase]: For 6/7 co-relation queries the response was YES. [2024-11-07 15:41:22,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1114 conditions, 1000 events. 15/1000 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1206 event pairs, 8 based on Foata normal form. 4/974 useless extension candidates. Maximal degree in co-relation 888. Up to 38 conditions per place. [2024-11-07 15:41:22,114 INFO L140 encePairwiseOnDemand]: 495/501 looper letters, 19 selfloop transitions, 9 changer transitions 0/476 dead transitions. [2024-11-07 15:41:22,115 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 480 places, 476 transitions, 1043 flow [2024-11-07 15:41:22,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 15:41:22,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-07 15:41:22,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 4170 transitions. [2024-11-07 15:41:22,122 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9248170326014638 [2024-11-07 15:41:22,122 INFO L175 Difference]: Start difference. First operand has 472 places, 468 transitions, 969 flow. Second operand 9 states and 4170 transitions. [2024-11-07 15:41:22,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 480 places, 476 transitions, 1043 flow [2024-11-07 15:41:22,126 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 475 places, 476 transitions, 1033 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-07 15:41:22,130 INFO L231 Difference]: Finished difference. Result has 478 places, 474 transitions, 1009 flow [2024-11-07 15:41:22,131 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=501, PETRI_DIFFERENCE_MINUEND_FLOW=959, PETRI_DIFFERENCE_MINUEND_PLACES=467, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=468, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=462, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1009, PETRI_PLACES=478, PETRI_TRANSITIONS=474} [2024-11-07 15:41:22,131 INFO L277 CegarLoopForPetriNet]: 477 programPoint places, 1 predicate places. [2024-11-07 15:41:22,131 INFO L471 AbstractCegarLoop]: Abstraction has has 478 places, 474 transitions, 1009 flow [2024-11-07 15:41:22,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 461.8) internal successors, (4618), 10 states have internal predecessors, (4618), 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 15:41:22,133 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:41:22,134 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:41:22,153 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-07 15:41:22,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-07 15:41:22,339 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-07 15:41:22,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:41:22,339 INFO L85 PathProgramCache]: Analyzing trace with hash 294771967, now seen corresponding path program 2 times [2024-11-07 15:41:22,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:41:22,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144389696] [2024-11-07 15:41:22,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:41:22,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:41:22,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:41:22,784 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2024-11-07 15:41:22,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:41:22,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144389696] [2024-11-07 15:41:22,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144389696] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 15:41:22,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [638071402] [2024-11-07 15:41:22,785 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 15:41:22,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:41:22,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:41:22,787 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 15:41:22,789 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-07 15:41:23,046 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-07 15:41:23,047 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 15:41:23,048 INFO L255 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-07 15:41:23,060 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 15:41:23,104 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2024-11-07 15:41:23,121 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2024-11-07 15:41:23,153 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 15:41:23,153 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 43 [2024-11-07 15:41:23,188 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 15:41:23,188 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 58 [2024-11-07 15:41:23,215 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2024-11-07 15:41:23,216 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 15:41:23,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [638071402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:41:23,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 15:41:23,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2024-11-07 15:41:23,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580697573] [2024-11-07 15:41:23,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:41:23,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:41:23,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:41:23,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:41:23,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-07 15:41:24,134 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 398 out of 501 [2024-11-07 15:41:24,136 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 478 places, 474 transitions, 1009 flow. Second operand has 6 states, 6 states have (on average 405.3333333333333) internal successors, (2432), 6 states have internal predecessors, (2432), 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 15:41:24,137 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:41:24,137 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 398 of 501 [2024-11-07 15:41:24,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:41:24,359 INFO L124 PetriNetUnfolderBase]: 83/1316 cut-off events. [2024-11-07 15:41:24,359 INFO L125 PetriNetUnfolderBase]: For 14/18 co-relation queries the response was YES. [2024-11-07 15:41:24,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1752 conditions, 1316 events. 83/1316 cut-off events. For 14/18 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 3089 event pairs, 64 based on Foata normal form. 0/1243 useless extension candidates. Maximal degree in co-relation 1092. Up to 362 conditions per place. [2024-11-07 15:41:24,366 INFO L140 encePairwiseOnDemand]: 489/501 looper letters, 69 selfloop transitions, 10 changer transitions 0/472 dead transitions. [2024-11-07 15:41:24,366 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 481 places, 472 transitions, 1163 flow [2024-11-07 15:41:24,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:41:24,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:41:24,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2469 transitions. [2024-11-07 15:41:24,371 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8213572854291418 [2024-11-07 15:41:24,371 INFO L175 Difference]: Start difference. First operand has 478 places, 474 transitions, 1009 flow. Second operand 6 states and 2469 transitions. [2024-11-07 15:41:24,371 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 481 places, 472 transitions, 1163 flow [2024-11-07 15:41:24,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 480 places, 472 transitions, 1157 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-07 15:41:24,379 INFO L231 Difference]: Finished difference. Result has 480 places, 472 transitions, 1019 flow [2024-11-07 15:41:24,379 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=501, PETRI_DIFFERENCE_MINUEND_FLOW=999, PETRI_DIFFERENCE_MINUEND_PLACES=475, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=472, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=462, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1019, PETRI_PLACES=480, PETRI_TRANSITIONS=472} [2024-11-07 15:41:24,380 INFO L277 CegarLoopForPetriNet]: 477 programPoint places, 3 predicate places. [2024-11-07 15:41:24,380 INFO L471 AbstractCegarLoop]: Abstraction has has 480 places, 472 transitions, 1019 flow [2024-11-07 15:41:24,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 405.3333333333333) internal successors, (2432), 6 states have internal predecessors, (2432), 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 15:41:24,381 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:41:24,381 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:41:24,399 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-07 15:41:24,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:41:24,582 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-07 15:41:24,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:41:24,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1835266680, now seen corresponding path program 1 times [2024-11-07 15:41:24,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:41:24,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065382] [2024-11-07 15:41:24,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:41:24,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:41:24,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:41:24,981 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2024-11-07 15:41:24,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:41:24,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065382] [2024-11-07 15:41:24,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065382] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 15:41:24,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1519143718] [2024-11-07 15:41:24,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:41:24,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:41:24,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:41:24,984 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 15:41:24,986 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-07 15:41:25,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:41:25,425 INFO L255 TraceCheckSpWp]: Trace formula consists of 1615 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-07 15:41:25,430 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 15:41:25,798 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 1 proven. 273 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:41:25,798 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 15:41:26,212 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 1 proven. 273 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:41:26,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1519143718] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 15:41:26,213 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 15:41:26,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2024-11-07 15:41:26,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399883949] [2024-11-07 15:41:26,213 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 15:41:26,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-07 15:41:26,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:41:26,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-07 15:41:26,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2024-11-07 15:41:26,319 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 454 out of 501 [2024-11-07 15:41:26,325 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 480 places, 472 transitions, 1019 flow. Second operand has 19 states, 19 states have (on average 456.5263157894737) internal successors, (8674), 19 states have internal predecessors, (8674), 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 15:41:26,325 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:41:26,325 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 454 of 501 [2024-11-07 15:41:26,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:41:27,536 INFO L124 PetriNetUnfolderBase]: 16/2378 cut-off events. [2024-11-07 15:41:27,536 INFO L125 PetriNetUnfolderBase]: For 80/81 co-relation queries the response was YES. [2024-11-07 15:41:27,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2679 conditions, 2378 events. 16/2378 cut-off events. For 80/81 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1200 event pairs, 8 based on Foata normal form. 13/2363 useless extension candidates. Maximal degree in co-relation 2450. Up to 40 conditions per place. [2024-11-07 15:41:27,542 INFO L140 encePairwiseOnDemand]: 490/501 looper letters, 51 selfloop transitions, 68 changer transitions 0/558 dead transitions. [2024-11-07 15:41:27,542 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 542 places, 558 transitions, 1667 flow [2024-11-07 15:41:27,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-11-07 15:41:27,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2024-11-07 15:41:27,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 28734 transitions. [2024-11-07 15:41:27,571 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9103697367170421 [2024-11-07 15:41:27,571 INFO L175 Difference]: Start difference. First operand has 480 places, 472 transitions, 1019 flow. Second operand 63 states and 28734 transitions. [2024-11-07 15:41:27,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 542 places, 558 transitions, 1667 flow [2024-11-07 15:41:27,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 537 places, 558 transitions, 1647 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-07 15:41:27,580 INFO L231 Difference]: Finished difference. Result has 553 places, 534 transitions, 1519 flow [2024-11-07 15:41:27,580 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=501, PETRI_DIFFERENCE_MINUEND_FLOW=999, PETRI_DIFFERENCE_MINUEND_PLACES=475, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=472, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=456, PETRI_DIFFERENCE_SUBTRAHEND_STATES=63, PETRI_FLOW=1519, PETRI_PLACES=553, PETRI_TRANSITIONS=534} [2024-11-07 15:41:27,581 INFO L277 CegarLoopForPetriNet]: 477 programPoint places, 76 predicate places. [2024-11-07 15:41:27,581 INFO L471 AbstractCegarLoop]: Abstraction has has 553 places, 534 transitions, 1519 flow [2024-11-07 15:41:27,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 456.5263157894737) internal successors, (8674), 19 states have internal predecessors, (8674), 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 15:41:27,584 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:41:27,585 INFO L204 CegarLoopForPetriNet]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:41:27,603 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-07 15:41:27,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:41:27,785 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-07 15:41:27,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:41:27,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1328653434, now seen corresponding path program 2 times [2024-11-07 15:41:27,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:41:27,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86135299] [2024-11-07 15:41:27,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:41:27,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:41:28,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:41:31,111 INFO L134 CoverageAnalysis]: Checked inductivity of 8249 backedges. 4450 proven. 1897 refuted. 0 times theorem prover too weak. 1902 trivial. 0 not checked. [2024-11-07 15:41:31,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:41:31,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86135299] [2024-11-07 15:41:31,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86135299] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 15:41:31,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1915863473] [2024-11-07 15:41:31,112 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 15:41:31,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:41:31,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:41:31,114 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 15:41:31,114 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-07 15:41:31,837 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-07 15:41:31,837 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 15:41:31,841 INFO L255 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-07 15:41:31,863 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 15:41:31,941 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-07 15:41:31,962 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-07 15:41:31,984 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 15:41:31,984 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-11-07 15:41:32,010 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 15:41:32,010 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2024-11-07 15:41:32,047 INFO L134 CoverageAnalysis]: Checked inductivity of 8249 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8249 trivial. 0 not checked. [2024-11-07 15:41:32,047 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 15:41:32,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1915863473] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:41:32,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 15:41:32,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-11-07 15:41:32,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381018600] [2024-11-07 15:41:32,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:41:32,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:41:32,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:41:32,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:41:32,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-07 15:41:32,661 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 407 out of 501 [2024-11-07 15:41:32,664 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 553 places, 534 transitions, 1519 flow. Second operand has 6 states, 6 states have (on average 414.3333333333333) internal successors, (2486), 6 states have internal predecessors, (2486), 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 15:41:32,664 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:41:32,664 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 407 of 501 [2024-11-07 15:41:32,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:41:33,432 INFO L124 PetriNetUnfolderBase]: 103/2782 cut-off events. [2024-11-07 15:41:33,432 INFO L125 PetriNetUnfolderBase]: For 436/441 co-relation queries the response was YES. [2024-11-07 15:41:33,437 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3952 conditions, 2782 events. 103/2782 cut-off events. For 436/441 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 4043 event pairs, 80 based on Foata normal form. 0/2700 useless extension candidates. Maximal degree in co-relation 3132. Up to 823 conditions per place. [2024-11-07 15:41:33,443 INFO L140 encePairwiseOnDemand]: 495/501 looper letters, 66 selfloop transitions, 5 changer transitions 0/533 dead transitions. [2024-11-07 15:41:33,443 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 557 places, 533 transitions, 1659 flow [2024-11-07 15:41:33,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:41:33,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:41:33,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2514 transitions. [2024-11-07 15:41:33,445 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8363273453093812 [2024-11-07 15:41:33,445 INFO L175 Difference]: Start difference. First operand has 553 places, 534 transitions, 1519 flow. Second operand 6 states and 2514 transitions. [2024-11-07 15:41:33,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 557 places, 533 transitions, 1659 flow [2024-11-07 15:41:33,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 550 places, 533 transitions, 1583 flow, removed 19 selfloop flow, removed 7 redundant places. [2024-11-07 15:41:33,457 INFO L231 Difference]: Finished difference. Result has 550 places, 533 transitions, 1451 flow [2024-11-07 15:41:33,458 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=501, PETRI_DIFFERENCE_MINUEND_FLOW=1441, PETRI_DIFFERENCE_MINUEND_PLACES=545, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=533, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=528, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1451, PETRI_PLACES=550, PETRI_TRANSITIONS=533} [2024-11-07 15:41:33,458 INFO L277 CegarLoopForPetriNet]: 477 programPoint places, 73 predicate places. [2024-11-07 15:41:33,458 INFO L471 AbstractCegarLoop]: Abstraction has has 550 places, 533 transitions, 1451 flow [2024-11-07 15:41:33,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 414.3333333333333) internal successors, (2486), 6 states have internal predecessors, (2486), 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 15:41:33,459 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:41:33,460 INFO L204 CegarLoopForPetriNet]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:41:33,473 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-07 15:41:33,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-07 15:41:33,660 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-07 15:41:33,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:41:33,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1541271287, now seen corresponding path program 1 times [2024-11-07 15:41:33,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:41:33,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487136730] [2024-11-07 15:41:33,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:41:33,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:41:33,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:41:36,326 INFO L134 CoverageAnalysis]: Checked inductivity of 8249 backedges. 4450 proven. 1897 refuted. 0 times theorem prover too weak. 1902 trivial. 0 not checked. [2024-11-07 15:41:36,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:41:36,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487136730] [2024-11-07 15:41:36,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487136730] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 15:41:36,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2089947967] [2024-11-07 15:41:36,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:41:36,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:41:36,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:41:36,329 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 15:41:36,330 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-07 15:41:37,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:41:37,715 INFO L255 TraceCheckSpWp]: Trace formula consists of 5801 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-07 15:41:37,739 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 15:41:38,465 INFO L134 CoverageAnalysis]: Checked inductivity of 8249 backedges. 4450 proven. 1897 refuted. 0 times theorem prover too weak. 1902 trivial. 0 not checked. [2024-11-07 15:41:38,465 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 15:41:39,260 INFO L134 CoverageAnalysis]: Checked inductivity of 8249 backedges. 4450 proven. 1897 refuted. 0 times theorem prover too weak. 1902 trivial. 0 not checked. [2024-11-07 15:41:39,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2089947967] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 15:41:39,260 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 15:41:39,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2024-11-07 15:41:39,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815897474] [2024-11-07 15:41:39,261 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 15:41:39,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-07 15:41:39,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:41:39,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-07 15:41:39,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-11-07 15:41:39,310 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 460 out of 501 [2024-11-07 15:41:39,321 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 550 places, 533 transitions, 1451 flow. Second operand has 34 states, 34 states have (on average 462.11764705882354) internal successors, (15712), 34 states have internal predecessors, (15712), 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 15:41:39,322 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:41:39,322 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 460 of 501 [2024-11-07 15:41:39,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:41:41,242 INFO L124 PetriNetUnfolderBase]: 16/4537 cut-off events. [2024-11-07 15:41:41,243 INFO L125 PetriNetUnfolderBase]: For 3211/3212 co-relation queries the response was YES. [2024-11-07 15:41:41,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5333 conditions, 4537 events. 16/4537 cut-off events. For 3211/3212 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1199 event pairs, 8 based on Foata normal form. 24/4534 useless extension candidates. Maximal degree in co-relation 5088. Up to 78 conditions per place. [2024-11-07 15:41:41,252 INFO L140 encePairwiseOnDemand]: 495/501 looper letters, 51 selfloop transitions, 135 changer transitions 0/634 dead transitions. [2024-11-07 15:41:41,252 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 594 places, 634 transitions, 2587 flow [2024-11-07 15:41:41,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-11-07 15:41:41,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2024-11-07 15:41:41,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 20784 transitions. [2024-11-07 15:41:41,261 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9218895542248836 [2024-11-07 15:41:41,261 INFO L175 Difference]: Start difference. First operand has 550 places, 533 transitions, 1451 flow. Second operand 45 states and 20784 transitions. [2024-11-07 15:41:41,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 594 places, 634 transitions, 2587 flow [2024-11-07 15:41:41,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 589 places, 634 transitions, 2577 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-07 15:41:41,276 INFO L231 Difference]: Finished difference. Result has 598 places, 608 transitions, 2315 flow [2024-11-07 15:41:41,277 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=501, PETRI_DIFFERENCE_MINUEND_FLOW=1441, PETRI_DIFFERENCE_MINUEND_PLACES=545, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=533, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=464, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=2315, PETRI_PLACES=598, PETRI_TRANSITIONS=608} [2024-11-07 15:41:41,277 INFO L277 CegarLoopForPetriNet]: 477 programPoint places, 121 predicate places. [2024-11-07 15:41:41,277 INFO L471 AbstractCegarLoop]: Abstraction has has 598 places, 608 transitions, 2315 flow [2024-11-07 15:41:41,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 462.11764705882354) internal successors, (15712), 34 states have internal predecessors, (15712), 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 15:41:41,281 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:41:41,282 INFO L204 CegarLoopForPetriNet]: trace histogram [30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:41:41,312 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-07 15:41:41,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-07 15:41:41,483 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-07 15:41:41,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:41:41,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1695985911, now seen corresponding path program 2 times [2024-11-07 15:41:41,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:41:41,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257024535] [2024-11-07 15:41:41,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:41:41,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:41:42,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:41:52,137 INFO L134 CoverageAnalysis]: Checked inductivity of 39241 backedges. 20306 proven. 9465 refuted. 0 times theorem prover too weak. 9470 trivial. 0 not checked. [2024-11-07 15:41:52,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:41:52,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257024535] [2024-11-07 15:41:52,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257024535] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 15:41:52,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [710568018] [2024-11-07 15:41:52,138 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 15:41:52,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:41:52,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:41:52,140 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 15:41:52,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-07 15:41:53,356 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-07 15:41:53,356 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 15:41:53,362 INFO L255 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-07 15:41:53,387 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 15:41:53,436 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-07 15:41:53,460 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-07 15:41:53,490 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 15:41:53,490 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-11-07 15:41:53,518 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 15:41:53,518 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2024-11-07 15:41:53,556 INFO L134 CoverageAnalysis]: Checked inductivity of 39241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39241 trivial. 0 not checked. [2024-11-07 15:41:53,557 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 15:41:53,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [710568018] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:41:53,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 15:41:53,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [33] total 37 [2024-11-07 15:41:53,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618969924] [2024-11-07 15:41:53,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:41:53,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:41:53,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:41:53,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:41:53,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=302, Invalid=1030, Unknown=0, NotChecked=0, Total=1332 [2024-11-07 15:41:53,867 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 369 out of 501 [2024-11-07 15:41:53,868 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 598 places, 608 transitions, 2315 flow. Second operand has 6 states, 6 states have (on average 379.1666666666667) internal successors, (2275), 6 states have internal predecessors, (2275), 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 15:41:53,868 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:41:53,868 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 369 of 501 [2024-11-07 15:41:53,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:41:57,163 INFO L124 PetriNetUnfolderBase]: 360/5848 cut-off events. [2024-11-07 15:41:57,163 INFO L125 PetriNetUnfolderBase]: For 1225/1234 co-relation queries the response was YES. [2024-11-07 15:41:57,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8846 conditions, 5848 events. 360/5848 cut-off events. For 1225/1234 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 12030 event pairs, 324 based on Foata normal form. 0/5716 useless extension candidates. Maximal degree in co-relation 6602. Up to 2196 conditions per place. [2024-11-07 15:41:57,178 INFO L140 encePairwiseOnDemand]: 495/501 looper letters, 104 selfloop transitions, 5 changer transitions 0/607 dead transitions. [2024-11-07 15:41:57,178 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 602 places, 607 transitions, 2531 flow [2024-11-07 15:41:57,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:41:57,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:41:57,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2324 transitions. [2024-11-07 15:41:57,180 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7731204258150366 [2024-11-07 15:41:57,181 INFO L175 Difference]: Start difference. First operand has 598 places, 608 transitions, 2315 flow. Second operand 6 states and 2324 transitions. [2024-11-07 15:41:57,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 602 places, 607 transitions, 2531 flow [2024-11-07 15:41:57,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 584 places, 607 transitions, 2423 flow, removed 0 selfloop flow, removed 18 redundant places. [2024-11-07 15:41:57,201 INFO L231 Difference]: Finished difference. Result has 584 places, 607 transitions, 2215 flow [2024-11-07 15:41:57,201 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=501, PETRI_DIFFERENCE_MINUEND_FLOW=2205, PETRI_DIFFERENCE_MINUEND_PLACES=579, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=607, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=602, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2215, PETRI_PLACES=584, PETRI_TRANSITIONS=607} [2024-11-07 15:41:57,202 INFO L277 CegarLoopForPetriNet]: 477 programPoint places, 107 predicate places. [2024-11-07 15:41:57,202 INFO L471 AbstractCegarLoop]: Abstraction has has 584 places, 607 transitions, 2215 flow [2024-11-07 15:41:57,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 379.1666666666667) internal successors, (2275), 6 states have internal predecessors, (2275), 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 15:41:57,203 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:41:57,204 INFO L204 CegarLoopForPetriNet]: trace histogram [30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:41:57,224 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-07 15:41:57,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-07 15:41:57,405 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-07 15:41:57,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:41:57,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1223325097, now seen corresponding path program 1 times [2024-11-07 15:41:57,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:41:57,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632826494] [2024-11-07 15:41:57,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:41:57,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:41:57,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:42:00,042 INFO L134 CoverageAnalysis]: Checked inductivity of 39241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39241 trivial. 0 not checked. [2024-11-07 15:42:00,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:42:00,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632826494] [2024-11-07 15:42:00,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632826494] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:42:00,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:42:00,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 15:42:00,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528192534] [2024-11-07 15:42:00,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:42:00,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:42:00,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:42:00,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:42:00,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:42:00,069 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 463 out of 501 [2024-11-07 15:42:00,071 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 584 places, 607 transitions, 2215 flow. Second operand has 3 states, 3 states have (on average 464.3333333333333) internal successors, (1393), 3 states have internal predecessors, (1393), 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 15:42:00,071 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:42:00,071 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 463 of 501 [2024-11-07 15:42:00,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:42:02,255 INFO L124 PetriNetUnfolderBase]: 46/4810 cut-off events. [2024-11-07 15:42:02,255 INFO L125 PetriNetUnfolderBase]: For 1198/1202 co-relation queries the response was YES. [2024-11-07 15:42:02,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5646 conditions, 4810 events. 46/4810 cut-off events. For 1198/1202 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 3022 event pairs, 24 based on Foata normal form. 2/4743 useless extension candidates. Maximal degree in co-relation 5041. Up to 78 conditions per place. [2024-11-07 15:42:02,264 INFO L140 encePairwiseOnDemand]: 498/501 looper letters, 22 selfloop transitions, 2 changer transitions 0/615 dead transitions. [2024-11-07 15:42:02,264 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 586 places, 615 transitions, 2279 flow [2024-11-07 15:42:02,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:42:02,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:42:02,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1414 transitions. [2024-11-07 15:42:02,266 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9407850964737192 [2024-11-07 15:42:02,266 INFO L175 Difference]: Start difference. First operand has 584 places, 607 transitions, 2215 flow. Second operand 3 states and 1414 transitions. [2024-11-07 15:42:02,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 586 places, 615 transitions, 2279 flow [2024-11-07 15:42:02,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 581 places, 615 transitions, 2269 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-07 15:42:02,285 INFO L231 Difference]: Finished difference. Result has 582 places, 607 transitions, 2213 flow [2024-11-07 15:42:02,286 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=501, PETRI_DIFFERENCE_MINUEND_FLOW=2205, PETRI_DIFFERENCE_MINUEND_PLACES=579, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=607, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=605, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2213, PETRI_PLACES=582, PETRI_TRANSITIONS=607} [2024-11-07 15:42:02,286 INFO L277 CegarLoopForPetriNet]: 477 programPoint places, 105 predicate places. [2024-11-07 15:42:02,286 INFO L471 AbstractCegarLoop]: Abstraction has has 582 places, 607 transitions, 2213 flow [2024-11-07 15:42:02,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 464.3333333333333) internal successors, (1393), 3 states have internal predecessors, (1393), 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 15:42:02,287 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:42:02,288 INFO L204 CegarLoopForPetriNet]: trace histogram [30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:42:02,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-07 15:42:02,288 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-07 15:42:02,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:42:02,289 INFO L85 PathProgramCache]: Analyzing trace with hash -442677911, now seen corresponding path program 1 times [2024-11-07 15:42:02,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:42:02,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857508517] [2024-11-07 15:42:02,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:42:02,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:42:02,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:42:14,038 INFO L134 CoverageAnalysis]: Checked inductivity of 39241 backedges. 20306 proven. 9465 refuted. 0 times theorem prover too weak. 9470 trivial. 0 not checked. [2024-11-07 15:42:14,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:42:14,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857508517] [2024-11-07 15:42:14,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857508517] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 15:42:14,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [268425495] [2024-11-07 15:42:14,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:42:14,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:42:14,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:42:14,042 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 15:42:14,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-07 15:42:17,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:42:17,068 INFO L255 TraceCheckSpWp]: Trace formula consists of 11747 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-07 15:42:17,089 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 15:42:18,232 INFO L134 CoverageAnalysis]: Checked inductivity of 39241 backedges. 20306 proven. 9465 refuted. 0 times theorem prover too weak. 9470 trivial. 0 not checked. [2024-11-07 15:42:18,232 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 15:42:20,344 INFO L134 CoverageAnalysis]: Checked inductivity of 39241 backedges. 20306 proven. 9465 refuted. 0 times theorem prover too weak. 9470 trivial. 0 not checked. [2024-11-07 15:42:20,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [268425495] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 15:42:20,344 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 15:42:20,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 63 [2024-11-07 15:42:20,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905543039] [2024-11-07 15:42:20,345 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 15:42:20,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2024-11-07 15:42:20,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:42:20,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2024-11-07 15:42:20,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1023, Invalid=2883, Unknown=0, NotChecked=0, Total=3906