./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_61-invariant_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_61-invariant_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', 'b4399e58ed3ca9c75e2a61372e91a4308548a0e79a3eb4428d85990bd71242f7'] 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_61-invariant_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 b4399e58ed3ca9c75e2a61372e91a4308548a0e79a3eb4428d85990bd71242f7 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 15:39:39,224 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 15:39:39,320 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-07 15:39:39,326 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 15:39:39,326 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 15:39:39,343 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 15:39:39,345 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 15:39:39,345 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 15:39:39,345 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 15:39:39,345 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 15:39:39,345 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 15:39:39,345 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 15:39:39,345 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 15:39:39,345 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 15:39:39,346 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 15:39:39,346 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 15:39:39,346 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 15:39:39,346 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 15:39:39,346 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 15:39:39,346 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 15:39:39,346 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 15:39:39,346 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 15:39:39,346 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-07 15:39:39,346 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 15:39:39,346 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 15:39:39,346 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 15:39:39,346 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 15:39:39,346 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 15:39:39,346 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 15:39:39,346 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 15:39:39,346 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 15:39:39,346 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 15:39:39,347 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 15:39:39,347 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 15:39:39,347 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 15:39:39,347 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 15:39:39,347 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 15:39:39,347 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 15:39:39,347 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 15:39:39,347 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 15:39:39,347 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 15:39:39,347 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 -> b4399e58ed3ca9c75e2a61372e91a4308548a0e79a3eb4428d85990bd71242f7 [2024-11-07 15:39:39,599 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 15:39:39,604 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 15:39:39,607 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 15:39:39,608 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 15:39:39,609 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 15:39:39,609 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_61-invariant_racing.i [2024-11-07 15:39:40,782 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 15:39:41,019 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 15:39:41,019 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_61-invariant_racing.i [2024-11-07 15:39:41,028 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7d4a00d53/e3632b9dfaaf4ca08ff3d34ace2fbd34/FLAGf76286ec7 [2024-11-07 15:39:41,038 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7d4a00d53/e3632b9dfaaf4ca08ff3d34ace2fbd34 [2024-11-07 15:39:41,040 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 15:39:41,041 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 15:39:41,042 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 15:39:41,042 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 15:39:41,045 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 15:39:41,045 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:39:41" (1/1) ... [2024-11-07 15:39:41,046 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d6ea614 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:41, skipping insertion in model container [2024-11-07 15:39:41,046 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:39:41" (1/1) ... [2024-11-07 15:39:41,063 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 15:39:41,323 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 15:39:41,336 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 15:39:41,376 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 15:39:41,411 INFO L204 MainTranslator]: Completed translation [2024-11-07 15:39:41,412 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:41 WrapperNode [2024-11-07 15:39:41,412 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 15:39:41,413 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 15:39:41,413 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 15:39:41,413 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 15:39:41,418 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:41" (1/1) ... [2024-11-07 15:39:41,434 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:41" (1/1) ... [2024-11-07 15:39:41,456 INFO L138 Inliner]: procedures = 171, calls = 44, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 133 [2024-11-07 15:39:41,457 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 15:39:41,457 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 15:39:41,457 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 15:39:41,457 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 15:39:41,462 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:41" (1/1) ... [2024-11-07 15:39:41,463 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:41" (1/1) ... [2024-11-07 15:39:41,465 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:41" (1/1) ... [2024-11-07 15:39:41,467 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:41" (1/1) ... [2024-11-07 15:39:41,479 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:41" (1/1) ... [2024-11-07 15:39:41,485 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:41" (1/1) ... [2024-11-07 15:39:41,487 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:41" (1/1) ... [2024-11-07 15:39:41,491 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:41" (1/1) ... [2024-11-07 15:39:41,493 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 15:39:41,497 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 15:39:41,497 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 15:39:41,497 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 15:39:41,498 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:41" (1/1) ... [2024-11-07 15:39:41,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 15:39:41,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:39:41,542 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 15:39:41,550 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 15:39:41,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-07 15:39:41,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-07 15:39:41,571 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-07 15:39:41,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 15:39:41,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-07 15:39:41,572 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-07 15:39:41,572 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-07 15:39:41,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-07 15:39:41,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-07 15:39:41,572 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-07 15:39:41,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 15:39:41,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 15:39:41,574 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-07 15:39:41,685 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 15:39:41,687 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 15:39:41,984 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 15:39:41,984 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 15:39:42,030 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 15:39:42,030 INFO L316 CfgBuilder]: Removed 16 assume(true) statements. [2024-11-07 15:39:42,034 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:39:42 BoogieIcfgContainer [2024-11-07 15:39:42,034 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 15:39:42,035 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 15:39:42,035 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 15:39:42,038 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 15:39:42,039 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:39:41" (1/3) ... [2024-11-07 15:39:42,039 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c6c27ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:39:42, skipping insertion in model container [2024-11-07 15:39:42,039 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:39:41" (2/3) ... [2024-11-07 15:39:42,039 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c6c27ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:39:42, skipping insertion in model container [2024-11-07 15:39:42,039 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:39:42" (3/3) ... [2024-11-07 15:39:42,040 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_61-invariant_racing.i [2024-11-07 15:39:42,053 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 15:39:42,053 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-07 15:39:42,053 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 15:39:42,119 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-07 15:39:42,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 176 places, 193 transitions, 393 flow [2024-11-07 15:39:42,226 INFO L124 PetriNetUnfolderBase]: 32/292 cut-off events. [2024-11-07 15:39:42,227 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-07 15:39:42,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 292 events. 32/292 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1117 event pairs, 0 based on Foata normal form. 0/238 useless extension candidates. Maximal degree in co-relation 162. Up to 6 conditions per place. [2024-11-07 15:39:42,232 INFO L82 GeneralOperation]: Start removeDead. Operand has 176 places, 193 transitions, 393 flow [2024-11-07 15:39:42,240 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 176 places, 193 transitions, 393 flow [2024-11-07 15:39:42,246 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 15:39:42,265 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;@641d7a1e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 15:39:42,265 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-07 15:39:42,299 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 15:39:42,301 INFO L124 PetriNetUnfolderBase]: 3/53 cut-off events. [2024-11-07 15:39:42,301 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 15:39:42,301 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:39:42,302 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] [2024-11-07 15:39:42,303 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-07 15:39:42,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:39:42,307 INFO L85 PathProgramCache]: Analyzing trace with hash 865050736, now seen corresponding path program 1 times [2024-11-07 15:39:42,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:39:42,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015421718] [2024-11-07 15:39:42,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:39:42,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:39:42,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:39:42,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:39:42,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:39:42,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015421718] [2024-11-07 15:39:42,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015421718] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:39:42,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:39:42,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 15:39:42,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447033013] [2024-11-07 15:39:42,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:39:42,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:39:42,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:39:42,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:39:42,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:39:42,519 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 193 [2024-11-07 15:39:42,523 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 193 transitions, 393 flow. Second operand has 3 states, 3 states have (on average 149.66666666666666) internal successors, (449), 3 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:39:42,523 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:39:42,523 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 193 [2024-11-07 15:39:42,528 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:39:42,696 INFO L124 PetriNetUnfolderBase]: 122/1132 cut-off events. [2024-11-07 15:39:42,696 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-07 15:39:42,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1405 conditions, 1132 events. 122/1132 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 7181 event pairs, 88 based on Foata normal form. 141/1159 useless extension candidates. Maximal degree in co-relation 1334. Up to 256 conditions per place. [2024-11-07 15:39:42,703 INFO L140 encePairwiseOnDemand]: 172/193 looper letters, 34 selfloop transitions, 2 changer transitions 0/183 dead transitions. [2024-11-07 15:39:42,703 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 183 transitions, 445 flow [2024-11-07 15:39:42,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:39:42,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:39:42,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 506 transitions. [2024-11-07 15:39:42,712 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8739205526770294 [2024-11-07 15:39:42,713 INFO L175 Difference]: Start difference. First operand has 176 places, 193 transitions, 393 flow. Second operand 3 states and 506 transitions. [2024-11-07 15:39:42,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 183 transitions, 445 flow [2024-11-07 15:39:42,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 183 transitions, 445 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 15:39:42,720 INFO L231 Difference]: Finished difference. Result has 177 places, 173 transitions, 361 flow [2024-11-07 15:39:42,722 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=353, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=361, PETRI_PLACES=177, PETRI_TRANSITIONS=173} [2024-11-07 15:39:42,723 INFO L277 CegarLoopForPetriNet]: 176 programPoint places, 1 predicate places. [2024-11-07 15:39:42,724 INFO L471 AbstractCegarLoop]: Abstraction has has 177 places, 173 transitions, 361 flow [2024-11-07 15:39:42,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 149.66666666666666) internal successors, (449), 3 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:39:42,724 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:39:42,724 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:39:42,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 15:39:42,728 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-07 15:39:42,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:39:42,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1288223267, now seen corresponding path program 1 times [2024-11-07 15:39:42,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:39:42,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992161657] [2024-11-07 15:39:42,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:39:42,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:39:42,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:39:43,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:39:43,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:39:43,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992161657] [2024-11-07 15:39:43,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992161657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:39:43,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:39:43,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:39:43,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675504496] [2024-11-07 15:39:43,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:39:43,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:39:43,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:39:43,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:39:43,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:39:43,313 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 193 [2024-11-07 15:39:43,314 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 173 transitions, 361 flow. Second operand has 6 states, 6 states have (on average 137.5) internal successors, (825), 6 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:39:43,314 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:39:43,314 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 193 [2024-11-07 15:39:43,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:39:43,577 INFO L124 PetriNetUnfolderBase]: 225/1386 cut-off events. [2024-11-07 15:39:43,577 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-11-07 15:39:43,579 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1909 conditions, 1386 events. 225/1386 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9472 event pairs, 138 based on Foata normal form. 0/1266 useless extension candidates. Maximal degree in co-relation 1824. Up to 369 conditions per place. [2024-11-07 15:39:43,583 INFO L140 encePairwiseOnDemand]: 187/193 looper letters, 72 selfloop transitions, 5 changer transitions 0/212 dead transitions. [2024-11-07 15:39:43,583 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 212 transitions, 593 flow [2024-11-07 15:39:43,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:39:43,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:39:43,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 894 transitions. [2024-11-07 15:39:43,586 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.772020725388601 [2024-11-07 15:39:43,586 INFO L175 Difference]: Start difference. First operand has 177 places, 173 transitions, 361 flow. Second operand 6 states and 894 transitions. [2024-11-07 15:39:43,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 212 transitions, 593 flow [2024-11-07 15:39:43,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 212 transitions, 589 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 15:39:43,589 INFO L231 Difference]: Finished difference. Result has 179 places, 172 transitions, 365 flow [2024-11-07 15:39:43,590 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=355, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=365, PETRI_PLACES=179, PETRI_TRANSITIONS=172} [2024-11-07 15:39:43,590 INFO L277 CegarLoopForPetriNet]: 176 programPoint places, 3 predicate places. [2024-11-07 15:39:43,590 INFO L471 AbstractCegarLoop]: Abstraction has has 179 places, 172 transitions, 365 flow [2024-11-07 15:39:43,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 137.5) internal successors, (825), 6 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:39:43,591 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:39:43,591 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] [2024-11-07 15:39:43,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 15:39:43,591 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-07 15:39:43,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:39:43,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1992120150, now seen corresponding path program 1 times [2024-11-07 15:39:43,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:39:43,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281576788] [2024-11-07 15:39:43,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:39:43,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:39:43,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:39:43,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:39:43,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:39:43,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281576788] [2024-11-07 15:39:43,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281576788] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:39:43,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:39:43,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:39:43,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4933837] [2024-11-07 15:39:43,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:39:43,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:39:43,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:39:43,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:39:43,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:39:43,694 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 193 [2024-11-07 15:39:43,695 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 172 transitions, 365 flow. Second operand has 3 states, 3 states have (on average 133.66666666666666) internal successors, (401), 3 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:39:43,695 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:39:43,695 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 193 [2024-11-07 15:39:43,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:39:43,937 INFO L124 PetriNetUnfolderBase]: 423/2416 cut-off events. [2024-11-07 15:39:43,937 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-11-07 15:39:43,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3362 conditions, 2416 events. 423/2416 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 18603 event pairs, 160 based on Foata normal form. 0/2200 useless extension candidates. Maximal degree in co-relation 3300. Up to 544 conditions per place. [2024-11-07 15:39:43,946 INFO L140 encePairwiseOnDemand]: 171/193 looper letters, 61 selfloop transitions, 16 changer transitions 0/207 dead transitions. [2024-11-07 15:39:43,946 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 207 transitions, 592 flow [2024-11-07 15:39:43,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:39:43,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:39:43,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 479 transitions. [2024-11-07 15:39:43,947 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8272884283246977 [2024-11-07 15:39:43,947 INFO L175 Difference]: Start difference. First operand has 179 places, 172 transitions, 365 flow. Second operand 3 states and 479 transitions. [2024-11-07 15:39:43,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 207 transitions, 592 flow [2024-11-07 15:39:43,949 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 207 transitions, 582 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-07 15:39:43,952 INFO L231 Difference]: Finished difference. Result has 178 places, 188 transitions, 495 flow [2024-11-07 15:39:43,952 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=355, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=495, PETRI_PLACES=178, PETRI_TRANSITIONS=188} [2024-11-07 15:39:43,952 INFO L277 CegarLoopForPetriNet]: 176 programPoint places, 2 predicate places. [2024-11-07 15:39:43,953 INFO L471 AbstractCegarLoop]: Abstraction has has 178 places, 188 transitions, 495 flow [2024-11-07 15:39:43,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 133.66666666666666) internal successors, (401), 3 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:39:43,953 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:39:43,953 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:39:43,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 15:39:43,953 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-07 15:39:43,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:39:43,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1103490321, now seen corresponding path program 1 times [2024-11-07 15:39:43,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:39:43,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493628015] [2024-11-07 15:39:43,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:39:43,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:39:43,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 15:39:43,979 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 15:39:43,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 15:39:44,014 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 15:39:44,014 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-07 15:39:44,015 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2024-11-07 15:39:44,017 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2024-11-07 15:39:44,017 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2024-11-07 15:39:44,017 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2024-11-07 15:39:44,017 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2024-11-07 15:39:44,017 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2024-11-07 15:39:44,017 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2024-11-07 15:39:44,017 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2024-11-07 15:39:44,017 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2024-11-07 15:39:44,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2024-11-07 15:39:44,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2024-11-07 15:39:44,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2024-11-07 15:39:44,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2024-11-07 15:39:44,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2024-11-07 15:39:44,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2024-11-07 15:39:44,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2024-11-07 15:39:44,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2024-11-07 15:39:44,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2024-11-07 15:39:44,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 15:39:44,019 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-07 15:39:44,020 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-07 15:39:44,020 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-07 15:39:44,054 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-07 15:39:44,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 232 places, 255 transitions, 526 flow [2024-11-07 15:39:44,096 INFO L124 PetriNetUnfolderBase]: 54/481 cut-off events. [2024-11-07 15:39:44,096 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-07 15:39:44,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 493 conditions, 481 events. 54/481 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2097 event pairs, 0 based on Foata normal form. 0/391 useless extension candidates. Maximal degree in co-relation 294. Up to 9 conditions per place. [2024-11-07 15:39:44,099 INFO L82 GeneralOperation]: Start removeDead. Operand has 232 places, 255 transitions, 526 flow [2024-11-07 15:39:44,104 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 232 places, 255 transitions, 526 flow [2024-11-07 15:39:44,105 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 15:39:44,106 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;@641d7a1e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 15:39:44,106 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-07 15:39:44,111 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 15:39:44,112 INFO L124 PetriNetUnfolderBase]: 3/53 cut-off events. [2024-11-07 15:39:44,112 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 15:39:44,112 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:39:44,112 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] [2024-11-07 15:39:44,112 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-07 15:39:44,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:39:44,112 INFO L85 PathProgramCache]: Analyzing trace with hash -516333968, now seen corresponding path program 1 times [2024-11-07 15:39:44,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:39:44,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141680724] [2024-11-07 15:39:44,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:39:44,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:39:44,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:39:44,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:39:44,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:39:44,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141680724] [2024-11-07 15:39:44,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141680724] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:39:44,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:39:44,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 15:39:44,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137489935] [2024-11-07 15:39:44,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:39:44,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:39:44,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:39:44,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:39:44,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:39:44,216 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 255 [2024-11-07 15:39:44,217 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 255 transitions, 526 flow. Second operand has 3 states, 3 states have (on average 193.66666666666666) internal successors, (581), 3 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:39:44,218 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:39:44,218 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 255 [2024-11-07 15:39:44,218 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:39:45,391 INFO L124 PetriNetUnfolderBase]: 3074/12520 cut-off events. [2024-11-07 15:39:45,392 INFO L125 PetriNetUnfolderBase]: For 109/109 co-relation queries the response was YES. [2024-11-07 15:39:45,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17237 conditions, 12520 events. 3074/12520 cut-off events. For 109/109 co-relation queries the response was YES. Maximal size of possible extension queue 279. Compared 137561 event pairs, 2580 based on Foata normal form. 2223/13469 useless extension candidates. Maximal degree in co-relation 12801. Up to 4643 conditions per place. [2024-11-07 15:39:45,467 INFO L140 encePairwiseOnDemand]: 228/255 looper letters, 47 selfloop transitions, 2 changer transitions 0/240 dead transitions. [2024-11-07 15:39:45,467 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 240 transitions, 594 flow [2024-11-07 15:39:45,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:39:45,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:39:45,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 657 transitions. [2024-11-07 15:39:45,469 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8588235294117647 [2024-11-07 15:39:45,469 INFO L175 Difference]: Start difference. First operand has 232 places, 255 transitions, 526 flow. Second operand 3 states and 657 transitions. [2024-11-07 15:39:45,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 240 transitions, 594 flow [2024-11-07 15:39:45,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 240 transitions, 594 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 15:39:45,473 INFO L231 Difference]: Finished difference. Result has 233 places, 230 transitions, 486 flow [2024-11-07 15:39:45,474 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=474, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=486, PETRI_PLACES=233, PETRI_TRANSITIONS=230} [2024-11-07 15:39:45,475 INFO L277 CegarLoopForPetriNet]: 232 programPoint places, 1 predicate places. [2024-11-07 15:39:45,475 INFO L471 AbstractCegarLoop]: Abstraction has has 233 places, 230 transitions, 486 flow [2024-11-07 15:39:45,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 193.66666666666666) internal successors, (581), 3 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:39:45,476 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:39:45,476 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:39:45,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 15:39:45,476 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-07 15:39:45,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:39:45,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1461577406, now seen corresponding path program 1 times [2024-11-07 15:39:45,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:39:45,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859396515] [2024-11-07 15:39:45,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:39:45,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:39:45,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:39:45,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:39:45,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:39:45,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859396515] [2024-11-07 15:39:45,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859396515] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:39:45,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:39:45,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:39:45,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333911734] [2024-11-07 15:39:45,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:39:45,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:39:45,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:39:45,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:39:45,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:39:45,821 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 255 [2024-11-07 15:39:45,823 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 230 transitions, 486 flow. Second operand has 6 states, 6 states have (on average 181.5) internal successors, (1089), 6 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:39:45,823 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:39:45,823 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 255 [2024-11-07 15:39:45,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:39:47,480 INFO L124 PetriNetUnfolderBase]: 5303/19145 cut-off events. [2024-11-07 15:39:47,480 INFO L125 PetriNetUnfolderBase]: For 285/285 co-relation queries the response was YES. [2024-11-07 15:39:47,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27899 conditions, 19145 events. 5303/19145 cut-off events. For 285/285 co-relation queries the response was YES. Maximal size of possible extension queue 390. Compared 223133 event pairs, 500 based on Foata normal form. 0/17668 useless extension candidates. Maximal degree in co-relation 20339. Up to 6346 conditions per place. [2024-11-07 15:39:47,583 INFO L140 encePairwiseOnDemand]: 249/255 looper letters, 124 selfloop transitions, 6 changer transitions 0/309 dead transitions. [2024-11-07 15:39:47,584 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 309 transitions, 904 flow [2024-11-07 15:39:47,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 15:39:47,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 15:39:47,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1210 transitions. [2024-11-07 15:39:47,587 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7908496732026143 [2024-11-07 15:39:47,587 INFO L175 Difference]: Start difference. First operand has 233 places, 230 transitions, 486 flow. Second operand 6 states and 1210 transitions. [2024-11-07 15:39:47,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 309 transitions, 904 flow [2024-11-07 15:39:47,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 309 transitions, 902 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 15:39:47,594 INFO L231 Difference]: Finished difference. Result has 236 places, 229 transitions, 494 flow [2024-11-07 15:39:47,594 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=482, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=494, PETRI_PLACES=236, PETRI_TRANSITIONS=229} [2024-11-07 15:39:47,596 INFO L277 CegarLoopForPetriNet]: 232 programPoint places, 4 predicate places. [2024-11-07 15:39:47,596 INFO L471 AbstractCegarLoop]: Abstraction has has 236 places, 229 transitions, 494 flow [2024-11-07 15:39:47,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 181.5) internal successors, (1089), 6 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:39:47,597 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:39:47,597 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] [2024-11-07 15:39:47,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 15:39:47,597 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-07 15:39:47,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:39:47,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1524804749, now seen corresponding path program 1 times [2024-11-07 15:39:47,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:39:47,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594114240] [2024-11-07 15:39:47,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:39:47,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:39:47,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:39:47,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:39:47,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:39:47,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594114240] [2024-11-07 15:39:47,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594114240] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:39:47,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:39:47,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 15:39:47,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603591499] [2024-11-07 15:39:47,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:39:47,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:39:47,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:39:47,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:39:47,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:39:47,677 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 255 [2024-11-07 15:39:47,678 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 229 transitions, 494 flow. Second operand has 3 states, 3 states have (on average 166.66666666666666) internal successors, (500), 3 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:39:47,678 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:39:47,678 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 255 [2024-11-07 15:39:47,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:39:52,673 INFO L124 PetriNetUnfolderBase]: 23170/71698 cut-off events. [2024-11-07 15:39:52,674 INFO L125 PetriNetUnfolderBase]: For 513/513 co-relation queries the response was YES. [2024-11-07 15:39:52,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109009 conditions, 71698 events. 23170/71698 cut-off events. For 513/513 co-relation queries the response was YES. Maximal size of possible extension queue 1222. Compared 938857 event pairs, 8784 based on Foata normal form. 0/64847 useless extension candidates. Maximal degree in co-relation 55105. Up to 22148 conditions per place. [2024-11-07 15:39:52,968 INFO L140 encePairwiseOnDemand]: 222/255 looper letters, 96 selfloop transitions, 24 changer transitions 0/284 dead transitions. [2024-11-07 15:39:52,969 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 284 transitions, 855 flow [2024-11-07 15:39:52,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:39:52,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:39:52,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 624 transitions. [2024-11-07 15:39:52,970 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8156862745098039 [2024-11-07 15:39:52,971 INFO L175 Difference]: Start difference. First operand has 236 places, 229 transitions, 494 flow. Second operand 3 states and 624 transitions. [2024-11-07 15:39:52,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 284 transitions, 855 flow [2024-11-07 15:39:52,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 284 transitions, 843 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-07 15:39:52,977 INFO L231 Difference]: Finished difference. Result has 235 places, 253 transitions, 692 flow [2024-11-07 15:39:52,977 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=482, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=692, PETRI_PLACES=235, PETRI_TRANSITIONS=253} [2024-11-07 15:39:52,979 INFO L277 CegarLoopForPetriNet]: 232 programPoint places, 3 predicate places. [2024-11-07 15:39:52,979 INFO L471 AbstractCegarLoop]: Abstraction has has 235 places, 253 transitions, 692 flow [2024-11-07 15:39:52,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 166.66666666666666) internal successors, (500), 3 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:39:52,979 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:39:52,980 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] [2024-11-07 15:39:52,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 15:39:52,980 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-07 15:39:52,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:39:52,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1103330272, now seen corresponding path program 1 times [2024-11-07 15:39:52,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:39:52,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832931604] [2024-11-07 15:39:52,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:39:52,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:39:52,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:39:53,037 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:39:53,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:39:53,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832931604] [2024-11-07 15:39:53,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832931604] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 15:39:53,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942609539] [2024-11-07 15:39:53,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:39:53,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:39:53,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:39:53,041 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 15:39:53,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-07 15:39:53,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:39:53,122 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-07 15:39:53,123 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 15:39:53,136 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 15:39:53,136 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 15:39:53,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [942609539] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:39:53,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 15:39:53,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-07 15:39:53,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005289190] [2024-11-07 15:39:53,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:39:53,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:39:53,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:39:53,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:39:53,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:39:53,184 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 255 [2024-11-07 15:39:53,185 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 253 transitions, 692 flow. Second operand has 3 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:39:53,185 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:39:53,185 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 255 [2024-11-07 15:39:53,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:39:58,759 INFO L124 PetriNetUnfolderBase]: 24263/79502 cut-off events. [2024-11-07 15:39:58,760 INFO L125 PetriNetUnfolderBase]: For 25065/26135 co-relation queries the response was YES. [2024-11-07 15:39:58,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142039 conditions, 79502 events. 24263/79502 cut-off events. For 25065/26135 co-relation queries the response was YES. Maximal size of possible extension queue 1372. Compared 1078465 event pairs, 15275 based on Foata normal form. 249/72825 useless extension candidates. Maximal degree in co-relation 137745. Up to 33214 conditions per place. [2024-11-07 15:39:59,341 INFO L140 encePairwiseOnDemand]: 241/255 looper letters, 86 selfloop transitions, 24 changer transitions 0/295 dead transitions. [2024-11-07 15:39:59,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 295 transitions, 1056 flow [2024-11-07 15:39:59,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:39:59,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:39:59,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 617 transitions. [2024-11-07 15:39:59,344 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8065359477124183 [2024-11-07 15:39:59,344 INFO L175 Difference]: Start difference. First operand has 235 places, 253 transitions, 692 flow. Second operand 3 states and 617 transitions. [2024-11-07 15:39:59,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 295 transitions, 1056 flow [2024-11-07 15:39:59,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 295 transitions, 988 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 15:39:59,394 INFO L231 Difference]: Finished difference. Result has 237 places, 275 transitions, 870 flow [2024-11-07 15:39:59,394 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=644, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=253, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=870, PETRI_PLACES=237, PETRI_TRANSITIONS=275} [2024-11-07 15:39:59,394 INFO L277 CegarLoopForPetriNet]: 232 programPoint places, 5 predicate places. [2024-11-07 15:39:59,395 INFO L471 AbstractCegarLoop]: Abstraction has has 237 places, 275 transitions, 870 flow [2024-11-07 15:39:59,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:39:59,395 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:39:59,395 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] [2024-11-07 15:39:59,409 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-07 15:39:59,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:39:59,600 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-07 15:39:59,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:39:59,600 INFO L85 PathProgramCache]: Analyzing trace with hash -519889245, now seen corresponding path program 1 times [2024-11-07 15:39:59,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:39:59,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885568659] [2024-11-07 15:39:59,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:39:59,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:39:59,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:39:59,681 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:39:59,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:39:59,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885568659] [2024-11-07 15:39:59,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885568659] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 15:39:59,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1191616403] [2024-11-07 15:39:59,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:39:59,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:39:59,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 15:39:59,684 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 15:39:59,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-07 15:39:59,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:39:59,760 INFO L255 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 15:39:59,761 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 15:39:59,810 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:39:59,812 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 15:39:59,857 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:39:59,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1191616403] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 15:39:59,857 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 15:39:59,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-07 15:39:59,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628962494] [2024-11-07 15:39:59,857 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 15:39:59,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 15:39:59,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:39:59,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 15:39:59,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-07 15:39:59,935 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 255 [2024-11-07 15:39:59,937 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 275 transitions, 870 flow. Second operand has 10 states, 10 states have (on average 191.4) internal successors, (1914), 10 states have internal predecessors, (1914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:39:59,937 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:39:59,937 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 255 [2024-11-07 15:39:59,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:40:00,661 INFO L124 PetriNetUnfolderBase]: 2043/8419 cut-off events. [2024-11-07 15:40:00,661 INFO L125 PetriNetUnfolderBase]: For 1021/1166 co-relation queries the response was YES. [2024-11-07 15:40:00,688 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13363 conditions, 8419 events. 2043/8419 cut-off events. For 1021/1166 co-relation queries the response was YES. Maximal size of possible extension queue 229. Compared 87349 event pairs, 235 based on Foata normal form. 246/8170 useless extension candidates. Maximal degree in co-relation 13355. Up to 1249 conditions per place. [2024-11-07 15:40:00,711 INFO L140 encePairwiseOnDemand]: 250/255 looper letters, 116 selfloop transitions, 7 changer transitions 0/260 dead transitions. [2024-11-07 15:40:00,712 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 260 transitions, 898 flow [2024-11-07 15:40:00,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 15:40:00,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-07 15:40:00,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1826 transitions. [2024-11-07 15:40:00,716 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7956427015250545 [2024-11-07 15:40:00,716 INFO L175 Difference]: Start difference. First operand has 237 places, 275 transitions, 870 flow. Second operand 9 states and 1826 transitions. [2024-11-07 15:40:00,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 260 transitions, 898 flow [2024-11-07 15:40:00,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 260 transitions, 858 flow, removed 20 selfloop flow, removed 1 redundant places. [2024-11-07 15:40:00,724 INFO L231 Difference]: Finished difference. Result has 165 places, 168 transitions, 442 flow [2024-11-07 15:40:00,724 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=424, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=442, PETRI_PLACES=165, PETRI_TRANSITIONS=168} [2024-11-07 15:40:00,725 INFO L277 CegarLoopForPetriNet]: 232 programPoint places, -67 predicate places. [2024-11-07 15:40:00,725 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 168 transitions, 442 flow [2024-11-07 15:40:00,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 191.4) internal successors, (1914), 10 states have internal predecessors, (1914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:40:00,726 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:40:00,726 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] [2024-11-07 15:40:00,739 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-07 15:40:00,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 15:40:00,927 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-07 15:40:00,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:40:00,928 INFO L85 PathProgramCache]: Analyzing trace with hash 355699942, now seen corresponding path program 1 times [2024-11-07 15:40:00,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:40:00,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901950196] [2024-11-07 15:40:00,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:40:00,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:40:00,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:40:00,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:40:00,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:40:00,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901950196] [2024-11-07 15:40:00,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901950196] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:40:00,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:40:00,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 15:40:00,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584195739] [2024-11-07 15:40:00,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:40:00,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:40:00,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:40:00,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:40:00,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:40:00,999 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 255 [2024-11-07 15:40:01,000 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 168 transitions, 442 flow. Second operand has 3 states, 3 states have (on average 190.0) internal successors, (570), 3 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:40:01,000 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:40:01,000 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 255 [2024-11-07 15:40:01,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:40:01,024 INFO L124 PetriNetUnfolderBase]: 35/225 cut-off events. [2024-11-07 15:40:01,024 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2024-11-07 15:40:01,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 361 conditions, 225 events. 35/225 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 801 event pairs, 32 based on Foata normal form. 0/216 useless extension candidates. Maximal degree in co-relation 353. Up to 79 conditions per place. [2024-11-07 15:40:01,025 INFO L140 encePairwiseOnDemand]: 252/255 looper letters, 12 selfloop transitions, 1 changer transitions 0/74 dead transitions. [2024-11-07 15:40:01,025 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 74 transitions, 216 flow [2024-11-07 15:40:01,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:40:01,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:40:01,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 576 transitions. [2024-11-07 15:40:01,028 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7529411764705882 [2024-11-07 15:40:01,028 INFO L175 Difference]: Start difference. First operand has 165 places, 168 transitions, 442 flow. Second operand 3 states and 576 transitions. [2024-11-07 15:40:01,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 74 transitions, 216 flow [2024-11-07 15:40:01,028 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 74 transitions, 201 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-11-07 15:40:01,029 INFO L231 Difference]: Finished difference. Result has 84 places, 74 transitions, 177 flow [2024-11-07 15:40:01,029 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=177, PETRI_PLACES=84, PETRI_TRANSITIONS=74} [2024-11-07 15:40:01,030 INFO L277 CegarLoopForPetriNet]: 232 programPoint places, -148 predicate places. [2024-11-07 15:40:01,030 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 74 transitions, 177 flow [2024-11-07 15:40:01,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 190.0) internal successors, (570), 3 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:40:01,030 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:40:01,031 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:40:01,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 15:40:01,031 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-07 15:40:01,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:40:01,032 INFO L85 PathProgramCache]: Analyzing trace with hash -391592351, now seen corresponding path program 1 times [2024-11-07 15:40:01,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:40:01,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197846269] [2024-11-07 15:40:01,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:40:01,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:40:01,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 15:40:01,055 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 15:40:01,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 15:40:01,075 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 15:40:01,076 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-07 15:40:01,076 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining) [2024-11-07 15:40:01,076 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (21 of 23 remaining) [2024-11-07 15:40:01,076 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (20 of 23 remaining) [2024-11-07 15:40:01,076 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (19 of 23 remaining) [2024-11-07 15:40:01,076 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 23 remaining) [2024-11-07 15:40:01,076 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 23 remaining) [2024-11-07 15:40:01,076 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (16 of 23 remaining) [2024-11-07 15:40:01,077 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (15 of 23 remaining) [2024-11-07 15:40:01,077 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (14 of 23 remaining) [2024-11-07 15:40:01,077 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (13 of 23 remaining) [2024-11-07 15:40:01,077 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (12 of 23 remaining) [2024-11-07 15:40:01,077 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (11 of 23 remaining) [2024-11-07 15:40:01,077 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (10 of 23 remaining) [2024-11-07 15:40:01,077 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (9 of 23 remaining) [2024-11-07 15:40:01,077 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (8 of 23 remaining) [2024-11-07 15:40:01,077 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (7 of 23 remaining) [2024-11-07 15:40:01,077 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 23 remaining) [2024-11-07 15:40:01,077 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (5 of 23 remaining) [2024-11-07 15:40:01,077 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 23 remaining) [2024-11-07 15:40:01,077 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 23 remaining) [2024-11-07 15:40:01,078 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (2 of 23 remaining) [2024-11-07 15:40:01,078 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 23 remaining) [2024-11-07 15:40:01,078 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (0 of 23 remaining) [2024-11-07 15:40:01,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 15:40:01,078 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:40:01,078 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-07 15:40:01,079 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-07 15:40:01,113 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-07 15:40:01,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 288 places, 317 transitions, 661 flow [2024-11-07 15:40:01,280 INFO L124 PetriNetUnfolderBase]: 81/715 cut-off events. [2024-11-07 15:40:01,280 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-07 15:40:01,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 740 conditions, 715 events. 81/715 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3264 event pairs, 1 based on Foata normal form. 0/583 useless extension candidates. Maximal degree in co-relation 489. Up to 16 conditions per place. [2024-11-07 15:40:01,284 INFO L82 GeneralOperation]: Start removeDead. Operand has 288 places, 317 transitions, 661 flow [2024-11-07 15:40:01,287 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 288 places, 317 transitions, 661 flow [2024-11-07 15:40:01,289 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 15:40:01,289 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;@641d7a1e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 15:40:01,289 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-11-07 15:40:01,291 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 15:40:01,291 INFO L124 PetriNetUnfolderBase]: 3/53 cut-off events. [2024-11-07 15:40:01,291 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 15:40:01,292 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:40:01,292 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] [2024-11-07 15:40:01,292 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-07 15:40:01,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:40:01,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1606621296, now seen corresponding path program 1 times [2024-11-07 15:40:01,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:40:01,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125880828] [2024-11-07 15:40:01,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:40:01,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:40:01,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:40:01,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:40:01,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:40:01,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125880828] [2024-11-07 15:40:01,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125880828] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:40:01,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:40:01,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 15:40:01,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425618410] [2024-11-07 15:40:01,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:40:01,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 15:40:01,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:40:01,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 15:40:01,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 15:40:01,332 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 317 [2024-11-07 15:40:01,333 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 288 places, 317 transitions, 661 flow. Second operand has 3 states, 3 states have (on average 237.66666666666666) internal successors, (713), 3 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:40:01,333 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:40:01,333 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 317 [2024-11-07 15:40:01,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 15:40:14,976 INFO L124 PetriNetUnfolderBase]: 52130/156540 cut-off events. [2024-11-07 15:40:14,976 INFO L125 PetriNetUnfolderBase]: For 2131/2131 co-relation queries the response was YES. [2024-11-07 15:40:15,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 227376 conditions, 156540 events. 52130/156540 cut-off events. For 2131/2131 co-relation queries the response was YES. Maximal size of possible extension queue 2962. Compared 2297121 event pairs, 46479 based on Foata normal form. 32282/174382 useless extension candidates. Maximal degree in co-relation 168843. Up to 69847 conditions per place. [2024-11-07 15:40:16,494 INFO L140 encePairwiseOnDemand]: 284/317 looper letters, 59 selfloop transitions, 2 changer transitions 0/296 dead transitions. [2024-11-07 15:40:16,494 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 296 transitions, 741 flow [2024-11-07 15:40:16,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 15:40:16,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 15:40:16,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 807 transitions. [2024-11-07 15:40:16,496 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8485804416403786 [2024-11-07 15:40:16,496 INFO L175 Difference]: Start difference. First operand has 288 places, 317 transitions, 661 flow. Second operand 3 states and 807 transitions. [2024-11-07 15:40:16,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 296 transitions, 741 flow [2024-11-07 15:40:16,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 296 transitions, 741 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 15:40:16,501 INFO L231 Difference]: Finished difference. Result has 289 places, 286 transitions, 609 flow [2024-11-07 15:40:16,501 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=317, PETRI_DIFFERENCE_MINUEND_FLOW=597, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=285, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=283, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=609, PETRI_PLACES=289, PETRI_TRANSITIONS=286} [2024-11-07 15:40:16,502 INFO L277 CegarLoopForPetriNet]: 288 programPoint places, 1 predicate places. [2024-11-07 15:40:16,502 INFO L471 AbstractCegarLoop]: Abstraction has has 289 places, 286 transitions, 609 flow [2024-11-07 15:40:16,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 237.66666666666666) internal successors, (713), 3 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:40:16,503 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 15:40:16,503 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 15:40:16,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 15:40:16,503 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-07 15:40:16,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 15:40:16,503 INFO L85 PathProgramCache]: Analyzing trace with hash 105573599, now seen corresponding path program 1 times [2024-11-07 15:40:16,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 15:40:16,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594479247] [2024-11-07 15:40:16,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 15:40:16,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 15:40:16,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 15:40:16,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 15:40:16,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 15:40:16,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594479247] [2024-11-07 15:40:16,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594479247] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 15:40:16,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 15:40:16,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 15:40:16,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468442483] [2024-11-07 15:40:16,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 15:40:16,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 15:40:16,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 15:40:16,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 15:40:16,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 15:40:16,708 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 317 [2024-11-07 15:40:16,710 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 286 transitions, 609 flow. Second operand has 6 states, 6 states have (on average 225.5) internal successors, (1353), 6 states have internal predecessors, (1353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 15:40:16,710 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 15:40:16,710 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 317 [2024-11-07 15:40:16,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand