./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 dad265ed8a17f32bb0a174302dfe188f9a15f60b81cc9c28a67851ab05270da2 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 17:12:51,089 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 17:12:51,162 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-11 17:12:51,166 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 17:12:51,166 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 17:12:51,197 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 17:12:51,197 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 17:12:51,198 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 17:12:51,198 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 17:12:51,199 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 17:12:51,199 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 17:12:51,199 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 17:12:51,200 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 17:12:51,200 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 17:12:51,201 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 17:12:51,201 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 17:12:51,201 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 17:12:51,202 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 17:12:51,202 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 17:12:51,202 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 17:12:51,203 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 17:12:51,203 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 17:12:51,204 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-11 17:12:51,204 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 17:12:51,204 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 17:12:51,205 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 17:12:51,205 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 17:12:51,205 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 17:12:51,206 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 17:12:51,206 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 17:12:51,206 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 17:12:51,207 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:12:51,207 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 17:12:51,207 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 17:12:51,208 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 17:12:51,208 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 17:12:51,208 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 17:12:51,209 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 17:12:51,209 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 17:12:51,209 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 17:12:51,209 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 17:12:51,212 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dad265ed8a17f32bb0a174302dfe188f9a15f60b81cc9c28a67851ab05270da2 [2024-10-11 17:12:51,460 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 17:12:51,486 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 17:12:51,489 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 17:12:51,490 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 17:12:51,490 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 17:12:51,491 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i [2024-10-11 17:12:52,956 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 17:12:53,256 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 17:12:53,257 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i [2024-10-11 17:12:53,280 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/ab5180230/2aa9e622b38f4bac9c6d6907684d1899/FLAG9441bd485 [2024-10-11 17:12:53,298 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/ab5180230/2aa9e622b38f4bac9c6d6907684d1899 [2024-10-11 17:12:53,300 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 17:12:53,301 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 17:12:53,302 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 17:12:53,303 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 17:12:53,308 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 17:12:53,309 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:12:53" (1/1) ... [2024-10-11 17:12:53,310 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a0d76c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:12:53, skipping insertion in model container [2024-10-11 17:12:53,310 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:12:53" (1/1) ... [2024-10-11 17:12:53,355 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 17:12:53,803 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-11 17:12:53,804 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-11 17:12:53,805 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-11 17:12:53,805 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-11 17:12:53,840 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:12:53,863 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 17:12:53,916 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-11 17:12:53,918 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-11 17:12:53,919 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-11 17:12:53,919 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-11 17:12:53,942 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:12:53,993 INFO L204 MainTranslator]: Completed translation [2024-10-11 17:12:53,993 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:12:53 WrapperNode [2024-10-11 17:12:53,994 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 17:12:53,995 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 17:12:53,995 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 17:12:53,995 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 17:12:54,001 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:12:53" (1/1) ... [2024-10-11 17:12:54,025 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:12:53" (1/1) ... [2024-10-11 17:12:54,074 INFO L138 Inliner]: procedures = 280, calls = 56, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 367 [2024-10-11 17:12:54,078 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 17:12:54,079 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 17:12:54,079 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 17:12:54,079 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 17:12:54,088 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:12:53" (1/1) ... [2024-10-11 17:12:54,089 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:12:53" (1/1) ... [2024-10-11 17:12:54,100 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:12:53" (1/1) ... [2024-10-11 17:12:54,101 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:12:53" (1/1) ... [2024-10-11 17:12:54,129 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:12:53" (1/1) ... [2024-10-11 17:12:54,137 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:12:53" (1/1) ... [2024-10-11 17:12:54,141 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:12:53" (1/1) ... [2024-10-11 17:12:54,143 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:12:53" (1/1) ... [2024-10-11 17:12:54,147 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 17:12:54,148 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 17:12:54,149 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 17:12:54,149 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 17:12:54,150 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:12:53" (1/1) ... [2024-10-11 17:12:54,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:12:54,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:12:54,186 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 17:12:54,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 17:12:54,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 17:12:54,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-10-11 17:12:54,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 17:12:54,242 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-11 17:12:54,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-11 17:12:54,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-11 17:12:54,243 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-11 17:12:54,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-11 17:12:54,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 17:12:54,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-10-11 17:12:54,244 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-11 17:12:54,244 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-11 17:12:54,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-11 17:12:54,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 17:12:54,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 17:12:54,246 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 17:12:54,402 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 17:12:54,404 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 17:12:55,100 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 17:12:55,101 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 17:12:55,179 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 17:12:55,179 INFO L314 CfgBuilder]: Removed 16 assume(true) statements. [2024-10-11 17:12:55,180 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:12:55 BoogieIcfgContainer [2024-10-11 17:12:55,180 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 17:12:55,182 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 17:12:55,182 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 17:12:55,185 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 17:12:55,185 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 05:12:53" (1/3) ... [2024-10-11 17:12:55,186 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@782b2e1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:12:55, skipping insertion in model container [2024-10-11 17:12:55,186 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:12:53" (2/3) ... [2024-10-11 17:12:55,187 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@782b2e1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:12:55, skipping insertion in model container [2024-10-11 17:12:55,187 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:12:55" (3/3) ... [2024-10-11 17:12:55,189 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_93-evilcollapse_racefree.i [2024-10-11 17:12:55,205 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 17:12:55,206 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 21 error locations. [2024-10-11 17:12:55,206 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 17:12:55,297 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-11 17:12:55,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 386 places, 411 transitions, 829 flow [2024-10-11 17:12:55,483 INFO L124 PetriNetUnfolderBase]: 30/443 cut-off events. [2024-10-11 17:12:55,483 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-11 17:12:55,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 448 conditions, 443 events. 30/443 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1149 event pairs, 0 based on Foata normal form. 0/387 useless extension candidates. Maximal degree in co-relation 258. Up to 4 conditions per place. [2024-10-11 17:12:55,491 INFO L82 GeneralOperation]: Start removeDead. Operand has 386 places, 411 transitions, 829 flow [2024-10-11 17:12:55,499 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 386 places, 411 transitions, 829 flow [2024-10-11 17:12:55,507 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 17:12:55,514 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;@5cf7c07c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 17:12:55,517 INFO L334 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2024-10-11 17:12:55,529 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 17:12:55,529 INFO L124 PetriNetUnfolderBase]: 1/56 cut-off events. [2024-10-11 17:12:55,529 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:12:55,529 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:12:55,530 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] [2024-10-11 17:12:55,531 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-10-11 17:12:55,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:12:55,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1542847012, now seen corresponding path program 1 times [2024-10-11 17:12:55,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:12:55,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531445814] [2024-10-11 17:12:55,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:12:55,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:12:55,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:12:56,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:12:56,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:12:56,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531445814] [2024-10-11 17:12:56,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531445814] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:12:56,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:12:56,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:12:56,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800447154] [2024-10-11 17:12:56,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:12:56,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:12:56,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:12:56,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:12:56,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:12:57,027 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 411 [2024-10-11 17:12:57,037 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 386 places, 411 transitions, 829 flow. Second operand has 6 states, 6 states have (on average 290.3333333333333) internal successors, (1742), 6 states have internal predecessors, (1742), 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) [2024-10-11 17:12:57,038 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:12:57,038 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 411 [2024-10-11 17:12:57,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:12:57,360 INFO L124 PetriNetUnfolderBase]: 320/1603 cut-off events. [2024-10-11 17:12:57,360 INFO L125 PetriNetUnfolderBase]: For 7/15 co-relation queries the response was YES. [2024-10-11 17:12:57,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2301 conditions, 1603 events. 320/1603 cut-off events. For 7/15 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 10074 event pairs, 288 based on Foata normal form. 184/1652 useless extension candidates. Maximal degree in co-relation 1972. Up to 682 conditions per place. [2024-10-11 17:12:57,377 INFO L140 encePairwiseOnDemand]: 378/411 looper letters, 88 selfloop transitions, 10 changer transitions 2/386 dead transitions. [2024-10-11 17:12:57,377 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 387 places, 386 transitions, 975 flow [2024-10-11 17:12:57,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:12:57,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:12:57,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1855 transitions. [2024-10-11 17:12:57,401 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7522303325223033 [2024-10-11 17:12:57,403 INFO L175 Difference]: Start difference. First operand has 386 places, 411 transitions, 829 flow. Second operand 6 states and 1855 transitions. [2024-10-11 17:12:57,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 387 places, 386 transitions, 975 flow [2024-10-11 17:12:57,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 387 places, 386 transitions, 975 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 17:12:57,419 INFO L231 Difference]: Finished difference. Result has 387 places, 384 transitions, 795 flow [2024-10-11 17:12:57,422 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=411, PETRI_DIFFERENCE_MINUEND_FLOW=779, PETRI_DIFFERENCE_MINUEND_PLACES=382, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=386, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=376, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=795, PETRI_PLACES=387, PETRI_TRANSITIONS=384} [2024-10-11 17:12:57,426 INFO L277 CegarLoopForPetriNet]: 386 programPoint places, 1 predicate places. [2024-10-11 17:12:57,428 INFO L471 AbstractCegarLoop]: Abstraction has has 387 places, 384 transitions, 795 flow [2024-10-11 17:12:57,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 290.3333333333333) internal successors, (1742), 6 states have internal predecessors, (1742), 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) [2024-10-11 17:12:57,430 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:12:57,430 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] [2024-10-11 17:12:57,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 17:12:57,431 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-10-11 17:12:57,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:12:57,432 INFO L85 PathProgramCache]: Analyzing trace with hash 945721532, now seen corresponding path program 1 times [2024-10-11 17:12:57,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:12:57,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565889342] [2024-10-11 17:12:57,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:12:57,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:12:57,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:12:57,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:12:57,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:12:57,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565889342] [2024-10-11 17:12:57,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565889342] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:12:57,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:12:57,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:12:57,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175880930] [2024-10-11 17:12:57,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:12:57,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:12:57,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:12:57,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:12:57,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:12:58,352 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 411 [2024-10-11 17:12:58,355 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 387 places, 384 transitions, 795 flow. Second operand has 6 states, 6 states have (on average 290.3333333333333) internal successors, (1742), 6 states have internal predecessors, (1742), 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) [2024-10-11 17:12:58,355 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:12:58,355 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 411 [2024-10-11 17:12:58,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:12:58,580 INFO L124 PetriNetUnfolderBase]: 320/1599 cut-off events. [2024-10-11 17:12:58,580 INFO L125 PetriNetUnfolderBase]: For 7/15 co-relation queries the response was YES. [2024-10-11 17:12:58,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2308 conditions, 1599 events. 320/1599 cut-off events. For 7/15 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 10047 event pairs, 288 based on Foata normal form. 0/1468 useless extension candidates. Maximal degree in co-relation 2133. Up to 682 conditions per place. [2024-10-11 17:12:58,589 INFO L140 encePairwiseOnDemand]: 399/411 looper letters, 88 selfloop transitions, 10 changer transitions 0/382 dead transitions. [2024-10-11 17:12:58,589 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 388 places, 382 transitions, 987 flow [2024-10-11 17:12:58,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:12:58,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:12:58,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1834 transitions. [2024-10-11 17:12:58,593 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7437145174371452 [2024-10-11 17:12:58,594 INFO L175 Difference]: Start difference. First operand has 387 places, 384 transitions, 795 flow. Second operand 6 states and 1834 transitions. [2024-10-11 17:12:58,594 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 388 places, 382 transitions, 987 flow [2024-10-11 17:12:58,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 383 places, 382 transitions, 967 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:12:58,601 INFO L231 Difference]: Finished difference. Result has 383 places, 382 transitions, 791 flow [2024-10-11 17:12:58,602 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=411, PETRI_DIFFERENCE_MINUEND_FLOW=771, PETRI_DIFFERENCE_MINUEND_PLACES=378, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=382, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=372, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=791, PETRI_PLACES=383, PETRI_TRANSITIONS=382} [2024-10-11 17:12:58,603 INFO L277 CegarLoopForPetriNet]: 386 programPoint places, -3 predicate places. [2024-10-11 17:12:58,604 INFO L471 AbstractCegarLoop]: Abstraction has has 383 places, 382 transitions, 791 flow [2024-10-11 17:12:58,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 290.3333333333333) internal successors, (1742), 6 states have internal predecessors, (1742), 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) [2024-10-11 17:12:58,605 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:12:58,605 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] [2024-10-11 17:12:58,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 17:12:58,606 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-10-11 17:12:58,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:12:58,606 INFO L85 PathProgramCache]: Analyzing trace with hash -294159410, now seen corresponding path program 1 times [2024-10-11 17:12:58,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:12:58,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577106439] [2024-10-11 17:12:58,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:12:58,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:12:58,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:12:58,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:12:58,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:12:58,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577106439] [2024-10-11 17:12:58,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577106439] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:12:58,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:12:58,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 17:12:58,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664525106] [2024-10-11 17:12:58,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:12:58,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:12:58,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:12:58,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:12:58,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:12:58,681 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 373 out of 411 [2024-10-11 17:12:58,682 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 383 places, 382 transitions, 791 flow. Second operand has 3 states, 3 states have (on average 374.3333333333333) internal successors, (1123), 3 states have internal predecessors, (1123), 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) [2024-10-11 17:12:58,682 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:12:58,682 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 373 of 411 [2024-10-11 17:12:58,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:12:58,788 INFO L124 PetriNetUnfolderBase]: 16/560 cut-off events. [2024-10-11 17:12:58,789 INFO L125 PetriNetUnfolderBase]: For 4/5 co-relation queries the response was YES. [2024-10-11 17:12:58,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 621 conditions, 560 events. 16/560 cut-off events. For 4/5 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1817 event pairs, 8 based on Foata normal form. 1/518 useless extension candidates. Maximal degree in co-relation 397. Up to 34 conditions per place. [2024-10-11 17:12:58,791 INFO L140 encePairwiseOnDemand]: 408/411 looper letters, 15 selfloop transitions, 2 changer transitions 0/383 dead transitions. [2024-10-11 17:12:58,791 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 385 places, 383 transitions, 827 flow [2024-10-11 17:12:58,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:12:58,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:12:58,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1137 transitions. [2024-10-11 17:12:58,795 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9221411192214112 [2024-10-11 17:12:58,795 INFO L175 Difference]: Start difference. First operand has 383 places, 382 transitions, 791 flow. Second operand 3 states and 1137 transitions. [2024-10-11 17:12:58,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 385 places, 383 transitions, 827 flow [2024-10-11 17:12:58,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 383 transitions, 807 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:12:58,804 INFO L231 Difference]: Finished difference. Result has 381 places, 383 transitions, 783 flow [2024-10-11 17:12:58,805 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=411, PETRI_DIFFERENCE_MINUEND_FLOW=771, PETRI_DIFFERENCE_MINUEND_PLACES=378, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=382, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=380, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=783, PETRI_PLACES=381, PETRI_TRANSITIONS=383} [2024-10-11 17:12:58,806 INFO L277 CegarLoopForPetriNet]: 386 programPoint places, -5 predicate places. [2024-10-11 17:12:58,806 INFO L471 AbstractCegarLoop]: Abstraction has has 381 places, 383 transitions, 783 flow [2024-10-11 17:12:58,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 374.3333333333333) internal successors, (1123), 3 states have internal predecessors, (1123), 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) [2024-10-11 17:12:58,807 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:12:58,808 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:12:58,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 17:12:58,808 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-10-11 17:12:58,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:12:58,809 INFO L85 PathProgramCache]: Analyzing trace with hash 2144430072, now seen corresponding path program 1 times [2024-10-11 17:12:58,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:12:58,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495236832] [2024-10-11 17:12:58,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:12:58,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:12:58,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:12:59,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:12:59,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:12:59,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495236832] [2024-10-11 17:12:59,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495236832] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:12:59,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:12:59,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:12:59,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687747766] [2024-10-11 17:12:59,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:12:59,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:12:59,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:12:59,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:12:59,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:12:59,582 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 288 out of 411 [2024-10-11 17:12:59,584 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 381 places, 383 transitions, 783 flow. Second operand has 6 states, 6 states have (on average 290.6666666666667) internal successors, (1744), 6 states have internal predecessors, (1744), 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) [2024-10-11 17:12:59,585 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:12:59,585 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 288 of 411 [2024-10-11 17:12:59,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:12:59,908 INFO L124 PetriNetUnfolderBase]: 321/1721 cut-off events. [2024-10-11 17:12:59,908 INFO L125 PetriNetUnfolderBase]: For 8/16 co-relation queries the response was YES. [2024-10-11 17:12:59,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2474 conditions, 1721 events. 321/1721 cut-off events. For 8/16 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 10657 event pairs, 288 based on Foata normal form. 0/1586 useless extension candidates. Maximal degree in co-relation 2270. Up to 730 conditions per place. [2024-10-11 17:12:59,917 INFO L140 encePairwiseOnDemand]: 405/411 looper letters, 95 selfloop transitions, 5 changer transitions 0/382 dead transitions. [2024-10-11 17:12:59,917 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 385 places, 382 transitions, 981 flow [2024-10-11 17:12:59,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:12:59,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:12:59,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1829 transitions. [2024-10-11 17:12:59,921 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7416869424168694 [2024-10-11 17:12:59,921 INFO L175 Difference]: Start difference. First operand has 381 places, 383 transitions, 783 flow. Second operand 6 states and 1829 transitions. [2024-10-11 17:12:59,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 385 places, 382 transitions, 981 flow [2024-10-11 17:12:59,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 384 places, 382 transitions, 979 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 17:12:59,927 INFO L231 Difference]: Finished difference. Result has 384 places, 382 transitions, 789 flow [2024-10-11 17:12:59,928 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=411, PETRI_DIFFERENCE_MINUEND_FLOW=779, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=382, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=377, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=789, PETRI_PLACES=384, PETRI_TRANSITIONS=382} [2024-10-11 17:12:59,929 INFO L277 CegarLoopForPetriNet]: 386 programPoint places, -2 predicate places. [2024-10-11 17:12:59,929 INFO L471 AbstractCegarLoop]: Abstraction has has 384 places, 382 transitions, 789 flow [2024-10-11 17:12:59,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 290.6666666666667) internal successors, (1744), 6 states have internal predecessors, (1744), 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) [2024-10-11 17:12:59,930 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:12:59,931 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:12:59,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 17:12:59,931 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-10-11 17:12:59,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:12:59,932 INFO L85 PathProgramCache]: Analyzing trace with hash -781933782, now seen corresponding path program 1 times [2024-10-11 17:12:59,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:12:59,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832330707] [2024-10-11 17:12:59,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:12:59,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:12:59,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:13:00,015 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:13:00,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:13:00,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832330707] [2024-10-11 17:13:00,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832330707] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:13:00,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:13:00,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 17:13:00,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056475427] [2024-10-11 17:13:00,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:13:00,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:13:00,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:13:00,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:13:00,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:13:00,031 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 373 out of 411 [2024-10-11 17:13:00,033 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 384 places, 382 transitions, 789 flow. Second operand has 3 states, 3 states have (on average 374.3333333333333) internal successors, (1123), 3 states have internal predecessors, (1123), 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) [2024-10-11 17:13:00,033 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:13:00,033 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 373 of 411 [2024-10-11 17:13:00,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:13:00,131 INFO L124 PetriNetUnfolderBase]: 16/746 cut-off events. [2024-10-11 17:13:00,132 INFO L125 PetriNetUnfolderBase]: For 4/5 co-relation queries the response was YES. [2024-10-11 17:13:00,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 817 conditions, 746 events. 16/746 cut-off events. For 4/5 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1838 event pairs, 8 based on Foata normal form. 2/699 useless extension candidates. Maximal degree in co-relation 592. Up to 38 conditions per place. [2024-10-11 17:13:00,135 INFO L140 encePairwiseOnDemand]: 408/411 looper letters, 15 selfloop transitions, 2 changer transitions 0/383 dead transitions. [2024-10-11 17:13:00,135 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 386 places, 383 transitions, 825 flow [2024-10-11 17:13:00,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:13:00,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:13:00,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1137 transitions. [2024-10-11 17:13:00,138 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9221411192214112 [2024-10-11 17:13:00,138 INFO L175 Difference]: Start difference. First operand has 384 places, 382 transitions, 789 flow. Second operand 3 states and 1137 transitions. [2024-10-11 17:13:00,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 386 places, 383 transitions, 825 flow [2024-10-11 17:13:00,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 381 places, 383 transitions, 815 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:13:00,145 INFO L231 Difference]: Finished difference. Result has 382 places, 383 transitions, 791 flow [2024-10-11 17:13:00,145 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=411, PETRI_DIFFERENCE_MINUEND_FLOW=779, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=382, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=380, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=791, PETRI_PLACES=382, PETRI_TRANSITIONS=383} [2024-10-11 17:13:00,146 INFO L277 CegarLoopForPetriNet]: 386 programPoint places, -4 predicate places. [2024-10-11 17:13:00,146 INFO L471 AbstractCegarLoop]: Abstraction has has 382 places, 383 transitions, 791 flow [2024-10-11 17:13:00,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 374.3333333333333) internal successors, (1123), 3 states have internal predecessors, (1123), 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) [2024-10-11 17:13:00,147 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:13:00,148 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:13:00,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 17:13:00,148 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-10-11 17:13:00,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:13:00,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1749450432, now seen corresponding path program 1 times [2024-10-11 17:13:00,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:13:00,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096355540] [2024-10-11 17:13:00,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:13:00,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:13:00,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:13:00,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:13:00,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:13:00,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096355540] [2024-10-11 17:13:00,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096355540] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:13:00,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:13:00,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:13:00,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982555852] [2024-10-11 17:13:00,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:13:00,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:13:00,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:13:00,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:13:00,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:13:01,302 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 321 out of 411 [2024-10-11 17:13:01,306 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 382 places, 383 transitions, 791 flow. Second operand has 6 states, 6 states have (on average 325.5) internal successors, (1953), 6 states have internal predecessors, (1953), 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) [2024-10-11 17:13:01,306 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:13:01,307 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 321 of 411 [2024-10-11 17:13:01,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:13:01,476 INFO L124 PetriNetUnfolderBase]: 84/1060 cut-off events. [2024-10-11 17:13:01,477 INFO L125 PetriNetUnfolderBase]: For 6/10 co-relation queries the response was YES. [2024-10-11 17:13:01,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1413 conditions, 1060 events. 84/1060 cut-off events. For 6/10 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 3781 event pairs, 64 based on Foata normal form. 0/974 useless extension candidates. Maximal degree in co-relation 942. Up to 311 conditions per place. [2024-10-11 17:13:01,481 INFO L140 encePairwiseOnDemand]: 405/411 looper letters, 62 selfloop transitions, 5 changer transitions 0/382 dead transitions. [2024-10-11 17:13:01,481 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 386 places, 382 transitions, 923 flow [2024-10-11 17:13:01,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:13:01,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:13:01,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1994 transitions. [2024-10-11 17:13:01,485 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8085969180859692 [2024-10-11 17:13:01,486 INFO L175 Difference]: Start difference. First operand has 382 places, 383 transitions, 791 flow. Second operand 6 states and 1994 transitions. [2024-10-11 17:13:01,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 386 places, 382 transitions, 923 flow [2024-10-11 17:13:01,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 385 places, 382 transitions, 921 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 17:13:01,493 INFO L231 Difference]: Finished difference. Result has 385 places, 382 transitions, 797 flow [2024-10-11 17:13:01,494 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=411, PETRI_DIFFERENCE_MINUEND_FLOW=787, PETRI_DIFFERENCE_MINUEND_PLACES=380, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=382, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=377, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=797, PETRI_PLACES=385, PETRI_TRANSITIONS=382} [2024-10-11 17:13:01,496 INFO L277 CegarLoopForPetriNet]: 386 programPoint places, -1 predicate places. [2024-10-11 17:13:01,497 INFO L471 AbstractCegarLoop]: Abstraction has has 385 places, 382 transitions, 797 flow [2024-10-11 17:13:01,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 325.5) internal successors, (1953), 6 states have internal predecessors, (1953), 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) [2024-10-11 17:13:01,498 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:13:01,498 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:13:01,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 17:13:01,498 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-10-11 17:13:01,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:13:01,499 INFO L85 PathProgramCache]: Analyzing trace with hash 922364051, now seen corresponding path program 1 times [2024-10-11 17:13:01,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:13:01,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188326524] [2024-10-11 17:13:01,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:13:01,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:13:01,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:13:01,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:13:01,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:13:01,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188326524] [2024-10-11 17:13:01,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188326524] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:13:01,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:13:01,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:13:01,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315229806] [2024-10-11 17:13:01,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:13:01,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:13:01,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:13:01,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:13:01,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:13:02,380 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 288 out of 411 [2024-10-11 17:13:02,383 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 385 places, 382 transitions, 797 flow. Second operand has 6 states, 6 states have (on average 293.3333333333333) internal successors, (1760), 6 states have internal predecessors, (1760), 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) [2024-10-11 17:13:02,383 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:13:02,383 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 288 of 411 [2024-10-11 17:13:02,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:13:02,788 INFO L124 PetriNetUnfolderBase]: 321/1901 cut-off events. [2024-10-11 17:13:02,788 INFO L125 PetriNetUnfolderBase]: For 11/19 co-relation queries the response was YES. [2024-10-11 17:13:02,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2758 conditions, 1901 events. 321/1901 cut-off events. For 11/19 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 10829 event pairs, 288 based on Foata normal form. 0/1766 useless extension candidates. Maximal degree in co-relation 2313. Up to 796 conditions per place. [2024-10-11 17:13:02,799 INFO L140 encePairwiseOnDemand]: 405/411 looper letters, 95 selfloop transitions, 5 changer transitions 0/381 dead transitions. [2024-10-11 17:13:02,799 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 389 places, 381 transitions, 995 flow [2024-10-11 17:13:02,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:13:02,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:13:02,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1829 transitions. [2024-10-11 17:13:02,804 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7416869424168694 [2024-10-11 17:13:02,804 INFO L175 Difference]: Start difference. First operand has 385 places, 382 transitions, 797 flow. Second operand 6 states and 1829 transitions. [2024-10-11 17:13:02,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 389 places, 381 transitions, 995 flow [2024-10-11 17:13:02,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 384 places, 381 transitions, 985 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:13:02,812 INFO L231 Difference]: Finished difference. Result has 384 places, 381 transitions, 795 flow [2024-10-11 17:13:02,813 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=411, PETRI_DIFFERENCE_MINUEND_FLOW=785, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=381, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=376, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=795, PETRI_PLACES=384, PETRI_TRANSITIONS=381} [2024-10-11 17:13:02,814 INFO L277 CegarLoopForPetriNet]: 386 programPoint places, -2 predicate places. [2024-10-11 17:13:02,814 INFO L471 AbstractCegarLoop]: Abstraction has has 384 places, 381 transitions, 795 flow [2024-10-11 17:13:02,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 293.3333333333333) internal successors, (1760), 6 states have internal predecessors, (1760), 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) [2024-10-11 17:13:02,815 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:13:02,816 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:13:02,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 17:13:02,816 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-10-11 17:13:02,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:13:02,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1442955761, now seen corresponding path program 1 times [2024-10-11 17:13:02,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:13:02,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298753674] [2024-10-11 17:13:02,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:13:02,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:13:02,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:13:03,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:13:03,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:13:03,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298753674] [2024-10-11 17:13:03,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298753674] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:13:03,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:13:03,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:13:03,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112550614] [2024-10-11 17:13:03,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:13:03,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:13:03,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:13:03,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:13:03,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:13:04,056 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 292 out of 411 [2024-10-11 17:13:04,059 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 384 places, 381 transitions, 795 flow. Second operand has 6 states, 6 states have (on average 298.0) internal successors, (1788), 6 states have internal predecessors, (1788), 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) [2024-10-11 17:13:04,059 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:13:04,059 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 292 of 411 [2024-10-11 17:13:04,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:13:04,354 INFO L124 PetriNetUnfolderBase]: 321/1897 cut-off events. [2024-10-11 17:13:04,354 INFO L125 PetriNetUnfolderBase]: For 11/19 co-relation queries the response was YES. [2024-10-11 17:13:04,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2738 conditions, 1897 events. 321/1897 cut-off events. For 11/19 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 10811 event pairs, 288 based on Foata normal form. 0/1766 useless extension candidates. Maximal degree in co-relation 2329. Up to 780 conditions per place. [2024-10-11 17:13:04,362 INFO L140 encePairwiseOnDemand]: 405/411 looper letters, 91 selfloop transitions, 5 changer transitions 0/380 dead transitions. [2024-10-11 17:13:04,362 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 388 places, 380 transitions, 985 flow [2024-10-11 17:13:04,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:13:04,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:13:04,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1849 transitions. [2024-10-11 17:13:04,367 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7497972424979724 [2024-10-11 17:13:04,368 INFO L175 Difference]: Start difference. First operand has 384 places, 381 transitions, 795 flow. Second operand 6 states and 1849 transitions. [2024-10-11 17:13:04,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 388 places, 380 transitions, 985 flow [2024-10-11 17:13:04,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 383 places, 380 transitions, 975 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:13:04,378 INFO L231 Difference]: Finished difference. Result has 383 places, 380 transitions, 793 flow [2024-10-11 17:13:04,378 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=411, PETRI_DIFFERENCE_MINUEND_FLOW=783, PETRI_DIFFERENCE_MINUEND_PLACES=378, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=380, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=375, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=793, PETRI_PLACES=383, PETRI_TRANSITIONS=380} [2024-10-11 17:13:04,381 INFO L277 CegarLoopForPetriNet]: 386 programPoint places, -3 predicate places. [2024-10-11 17:13:04,381 INFO L471 AbstractCegarLoop]: Abstraction has has 383 places, 380 transitions, 793 flow [2024-10-11 17:13:04,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 298.0) internal successors, (1788), 6 states have internal predecessors, (1788), 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) [2024-10-11 17:13:04,382 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:13:04,382 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:13:04,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 17:13:04,385 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-10-11 17:13:04,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:13:04,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1715652543, now seen corresponding path program 1 times [2024-10-11 17:13:04,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:13:04,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066097551] [2024-10-11 17:13:04,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:13:04,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:13:04,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:13:04,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:13:04,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:13:04,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066097551] [2024-10-11 17:13:04,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066097551] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:13:04,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:13:04,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:13:04,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534260330] [2024-10-11 17:13:04,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:13:04,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:13:04,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:13:04,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:13:04,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:13:05,276 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 292 out of 411 [2024-10-11 17:13:05,279 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 383 places, 380 transitions, 793 flow. Second operand has 6 states, 6 states have (on average 298.0) internal successors, (1788), 6 states have internal predecessors, (1788), 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) [2024-10-11 17:13:05,279 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:13:05,279 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 292 of 411 [2024-10-11 17:13:05,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:13:05,601 INFO L124 PetriNetUnfolderBase]: 321/1893 cut-off events. [2024-10-11 17:13:05,601 INFO L125 PetriNetUnfolderBase]: For 7/15 co-relation queries the response was YES. [2024-10-11 17:13:05,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2734 conditions, 1893 events. 321/1893 cut-off events. For 7/15 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 10770 event pairs, 288 based on Foata normal form. 0/1766 useless extension candidates. Maximal degree in co-relation 2344. Up to 780 conditions per place. [2024-10-11 17:13:05,610 INFO L140 encePairwiseOnDemand]: 405/411 looper letters, 91 selfloop transitions, 5 changer transitions 0/379 dead transitions. [2024-10-11 17:13:05,610 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 387 places, 379 transitions, 983 flow [2024-10-11 17:13:05,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:13:05,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:13:05,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1849 transitions. [2024-10-11 17:13:05,615 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7497972424979724 [2024-10-11 17:13:05,615 INFO L175 Difference]: Start difference. First operand has 383 places, 380 transitions, 793 flow. Second operand 6 states and 1849 transitions. [2024-10-11 17:13:05,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 387 places, 379 transitions, 983 flow [2024-10-11 17:13:05,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 382 places, 379 transitions, 973 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:13:05,622 INFO L231 Difference]: Finished difference. Result has 382 places, 379 transitions, 791 flow [2024-10-11 17:13:05,623 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=411, PETRI_DIFFERENCE_MINUEND_FLOW=781, PETRI_DIFFERENCE_MINUEND_PLACES=377, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=379, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=374, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=791, PETRI_PLACES=382, PETRI_TRANSITIONS=379} [2024-10-11 17:13:05,624 INFO L277 CegarLoopForPetriNet]: 386 programPoint places, -4 predicate places. [2024-10-11 17:13:05,624 INFO L471 AbstractCegarLoop]: Abstraction has has 382 places, 379 transitions, 791 flow [2024-10-11 17:13:05,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 298.0) internal successors, (1788), 6 states have internal predecessors, (1788), 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) [2024-10-11 17:13:05,625 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:13:05,626 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:13:05,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 17:13:05,626 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-10-11 17:13:05,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:13:05,627 INFO L85 PathProgramCache]: Analyzing trace with hash -664419616, now seen corresponding path program 1 times [2024-10-11 17:13:05,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:13:05,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201459624] [2024-10-11 17:13:05,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:13:05,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:13:05,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:13:06,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:13:06,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:13:06,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201459624] [2024-10-11 17:13:06,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201459624] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:13:06,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:13:06,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:13:06,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657276691] [2024-10-11 17:13:06,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:13:06,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:13:06,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:13:06,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:13:06,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:13:06,526 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 287 out of 411 [2024-10-11 17:13:06,529 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 382 places, 379 transitions, 791 flow. Second operand has 6 states, 6 states have (on average 294.5) internal successors, (1767), 6 states have internal predecessors, (1767), 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) [2024-10-11 17:13:06,530 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:13:06,530 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 287 of 411 [2024-10-11 17:13:06,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:13:06,881 INFO L124 PetriNetUnfolderBase]: 321/1889 cut-off events. [2024-10-11 17:13:06,881 INFO L125 PetriNetUnfolderBase]: For 11/19 co-relation queries the response was YES. [2024-10-11 17:13:06,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2750 conditions, 1889 events. 321/1889 cut-off events. For 11/19 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 10733 event pairs, 288 based on Foata normal form. 0/1766 useless extension candidates. Maximal degree in co-relation 2357. Up to 800 conditions per place. [2024-10-11 17:13:06,891 INFO L140 encePairwiseOnDemand]: 405/411 looper letters, 96 selfloop transitions, 5 changer transitions 0/378 dead transitions. [2024-10-11 17:13:06,891 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 386 places, 378 transitions, 991 flow [2024-10-11 17:13:06,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:13:06,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:13:06,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1824 transitions. [2024-10-11 17:13:06,895 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7396593673965937 [2024-10-11 17:13:06,896 INFO L175 Difference]: Start difference. First operand has 382 places, 379 transitions, 791 flow. Second operand 6 states and 1824 transitions. [2024-10-11 17:13:06,896 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 386 places, 378 transitions, 991 flow [2024-10-11 17:13:06,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 381 places, 378 transitions, 981 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:13:06,902 INFO L231 Difference]: Finished difference. Result has 381 places, 378 transitions, 789 flow [2024-10-11 17:13:06,903 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=411, PETRI_DIFFERENCE_MINUEND_FLOW=779, PETRI_DIFFERENCE_MINUEND_PLACES=376, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=378, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=373, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=789, PETRI_PLACES=381, PETRI_TRANSITIONS=378} [2024-10-11 17:13:06,904 INFO L277 CegarLoopForPetriNet]: 386 programPoint places, -5 predicate places. [2024-10-11 17:13:06,904 INFO L471 AbstractCegarLoop]: Abstraction has has 381 places, 378 transitions, 789 flow [2024-10-11 17:13:06,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 294.5) internal successors, (1767), 6 states have internal predecessors, (1767), 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) [2024-10-11 17:13:06,906 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:13:06,906 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:13:06,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 17:13:06,907 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-10-11 17:13:06,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:13:06,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1691030675, now seen corresponding path program 1 times [2024-10-11 17:13:06,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:13:06,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266163941] [2024-10-11 17:13:06,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:13:06,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:13:06,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:13:07,089 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:13:07,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:13:07,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266163941] [2024-10-11 17:13:07,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266163941] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:13:07,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [795221826] [2024-10-11 17:13:07,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:13:07,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:13:07,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:13:07,093 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:13:07,094 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 17:13:07,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:13:07,314 INFO L255 TraceCheckSpWp]: Trace formula consists of 576 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 17:13:07,337 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:13:07,516 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:13:07,516 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:13:07,681 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:13:07,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [795221826] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 17:13:07,685 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 17:13:07,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-11 17:13:07,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577076131] [2024-10-11 17:13:07,685 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 17:13:07,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 17:13:07,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:13:07,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 17:13:07,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-11 17:13:07,713 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 411 [2024-10-11 17:13:07,717 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 381 places, 378 transitions, 789 flow. Second operand has 10 states, 10 states have (on average 371.8) internal successors, (3718), 10 states have internal predecessors, (3718), 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) [2024-10-11 17:13:07,717 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:13:07,717 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 411 [2024-10-11 17:13:07,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:13:07,925 INFO L124 PetriNetUnfolderBase]: 16/910 cut-off events. [2024-10-11 17:13:07,925 INFO L125 PetriNetUnfolderBase]: For 6/7 co-relation queries the response was YES. [2024-10-11 17:13:07,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1024 conditions, 910 events. 16/910 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1224 event pairs, 8 based on Foata normal form. 4/885 useless extension candidates. Maximal degree in co-relation 798. Up to 38 conditions per place. [2024-10-11 17:13:07,928 INFO L140 encePairwiseOnDemand]: 405/411 looper letters, 19 selfloop transitions, 9 changer transitions 0/386 dead transitions. [2024-10-11 17:13:07,928 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 389 places, 386 transitions, 863 flow [2024-10-11 17:13:07,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 17:13:07,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 17:13:07,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3360 transitions. [2024-10-11 17:13:07,935 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9083536090835361 [2024-10-11 17:13:07,935 INFO L175 Difference]: Start difference. First operand has 381 places, 378 transitions, 789 flow. Second operand 9 states and 3360 transitions. [2024-10-11 17:13:07,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 389 places, 386 transitions, 863 flow [2024-10-11 17:13:07,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 384 places, 386 transitions, 853 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:13:07,942 INFO L231 Difference]: Finished difference. Result has 387 places, 384 transitions, 829 flow [2024-10-11 17:13:07,943 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=411, PETRI_DIFFERENCE_MINUEND_FLOW=779, PETRI_DIFFERENCE_MINUEND_PLACES=376, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=378, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=372, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=829, PETRI_PLACES=387, PETRI_TRANSITIONS=384} [2024-10-11 17:13:07,943 INFO L277 CegarLoopForPetriNet]: 386 programPoint places, 1 predicate places. [2024-10-11 17:13:07,944 INFO L471 AbstractCegarLoop]: Abstraction has has 387 places, 384 transitions, 829 flow [2024-10-11 17:13:07,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 371.8) internal successors, (3718), 10 states have internal predecessors, (3718), 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) [2024-10-11 17:13:07,945 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:13:07,946 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:13:07,966 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-11 17:13:08,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-11 17:13:08,151 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-10-11 17:13:08,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:13:08,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1097239219, now seen corresponding path program 2 times [2024-10-11 17:13:08,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:13:08,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736177985] [2024-10-11 17:13:08,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:13:08,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:13:08,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:13:08,615 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2024-10-11 17:13:08,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:13:08,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736177985] [2024-10-11 17:13:08,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736177985] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:13:08,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1252489212] [2024-10-11 17:13:08,616 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 17:13:08,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:13:08,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:13:08,618 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:13:08,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 17:13:08,854 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 17:13:08,854 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 17:13:08,856 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-11 17:13:08,864 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:13:08,904 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-10-11 17:13:08,919 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-10-11 17:13:08,948 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:13:08,949 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-10-11 17:13:08,984 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:13:08,985 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-10-11 17:13:09,013 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2024-10-11 17:13:09,013 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 17:13:09,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1252489212] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:13:09,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 17:13:09,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2024-10-11 17:13:09,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295224108] [2024-10-11 17:13:09,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:13:09,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:13:09,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:13:09,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:13:09,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-10-11 17:13:09,676 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 321 out of 411 [2024-10-11 17:13:09,678 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 387 places, 384 transitions, 829 flow. Second operand has 6 states, 6 states have (on average 328.3333333333333) internal successors, (1970), 6 states have internal predecessors, (1970), 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) [2024-10-11 17:13:09,679 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:13:09,679 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 321 of 411 [2024-10-11 17:13:09,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:13:09,977 INFO L124 PetriNetUnfolderBase]: 84/1227 cut-off events. [2024-10-11 17:13:09,978 INFO L125 PetriNetUnfolderBase]: For 14/18 co-relation queries the response was YES. [2024-10-11 17:13:09,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1651 conditions, 1227 events. 84/1227 cut-off events. For 14/18 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3104 event pairs, 64 based on Foata normal form. 0/1154 useless extension candidates. Maximal degree in co-relation 1064. Up to 355 conditions per place. [2024-10-11 17:13:09,982 INFO L140 encePairwiseOnDemand]: 405/411 looper letters, 62 selfloop transitions, 5 changer transitions 0/383 dead transitions. [2024-10-11 17:13:09,983 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 391 places, 383 transitions, 961 flow [2024-10-11 17:13:09,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:13:09,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:13:09,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1994 transitions. [2024-10-11 17:13:09,988 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8085969180859692 [2024-10-11 17:13:09,988 INFO L175 Difference]: Start difference. First operand has 387 places, 384 transitions, 829 flow. Second operand 6 states and 1994 transitions. [2024-10-11 17:13:09,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 391 places, 383 transitions, 961 flow [2024-10-11 17:13:09,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 390 places, 383 transitions, 955 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-11 17:13:09,995 INFO L231 Difference]: Finished difference. Result has 390 places, 383 transitions, 831 flow [2024-10-11 17:13:09,995 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=411, PETRI_DIFFERENCE_MINUEND_FLOW=821, PETRI_DIFFERENCE_MINUEND_PLACES=385, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=383, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=378, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=831, PETRI_PLACES=390, PETRI_TRANSITIONS=383} [2024-10-11 17:13:09,996 INFO L277 CegarLoopForPetriNet]: 386 programPoint places, 4 predicate places. [2024-10-11 17:13:09,996 INFO L471 AbstractCegarLoop]: Abstraction has has 390 places, 383 transitions, 831 flow [2024-10-11 17:13:09,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 328.3333333333333) internal successors, (1970), 6 states have internal predecessors, (1970), 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) [2024-10-11 17:13:09,997 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:13:09,998 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:13:10,017 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-11 17:13:10,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:13:10,203 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-10-11 17:13:10,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:13:10,203 INFO L85 PathProgramCache]: Analyzing trace with hash 552292230, now seen corresponding path program 1 times [2024-10-11 17:13:10,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:13:10,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125316862] [2024-10-11 17:13:10,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:13:10,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:13:10,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:13:10,563 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2024-10-11 17:13:10,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:13:10,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125316862] [2024-10-11 17:13:10,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125316862] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:13:10,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1540409003] [2024-10-11 17:13:10,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:13:10,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:13:10,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:13:10,566 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:13:10,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 17:13:11,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:13:11,023 INFO L255 TraceCheckSpWp]: Trace formula consists of 1313 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 17:13:11,028 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:13:11,370 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 1 proven. 273 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:13:11,370 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:13:11,772 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 1 proven. 273 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:13:11,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1540409003] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 17:13:11,772 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 17:13:11,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2024-10-11 17:13:11,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266122454] [2024-10-11 17:13:11,773 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 17:13:11,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-11 17:13:11,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:13:11,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-11 17:13:11,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2024-10-11 17:13:11,887 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 364 out of 411 [2024-10-11 17:13:11,892 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 383 transitions, 831 flow. Second operand has 19 states, 19 states have (on average 366.5263157894737) internal successors, (6964), 19 states have internal predecessors, (6964), 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) [2024-10-11 17:13:11,892 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:13:11,892 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 364 of 411 [2024-10-11 17:13:11,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:13:13,528 INFO L124 PetriNetUnfolderBase]: 17/2289 cut-off events. [2024-10-11 17:13:13,528 INFO L125 PetriNetUnfolderBase]: For 80/81 co-relation queries the response was YES. [2024-10-11 17:13:13,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2585 conditions, 2289 events. 17/2289 cut-off events. For 80/81 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1216 event pairs, 8 based on Foata normal form. 13/2274 useless extension candidates. Maximal degree in co-relation 2356. Up to 40 conditions per place. [2024-10-11 17:13:13,533 INFO L140 encePairwiseOnDemand]: 400/411 looper letters, 51 selfloop transitions, 68 changer transitions 0/469 dead transitions. [2024-10-11 17:13:13,534 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 452 places, 469 transitions, 1479 flow [2024-10-11 17:13:13,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-10-11 17:13:13,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2024-10-11 17:13:13,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 23064 transitions. [2024-10-11 17:13:13,578 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8907426717645696 [2024-10-11 17:13:13,578 INFO L175 Difference]: Start difference. First operand has 390 places, 383 transitions, 831 flow. Second operand 63 states and 23064 transitions. [2024-10-11 17:13:13,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 452 places, 469 transitions, 1479 flow [2024-10-11 17:13:13,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 447 places, 469 transitions, 1469 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:13:13,588 INFO L231 Difference]: Finished difference. Result has 463 places, 445 transitions, 1341 flow [2024-10-11 17:13:13,589 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=411, PETRI_DIFFERENCE_MINUEND_FLOW=821, PETRI_DIFFERENCE_MINUEND_PLACES=385, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=383, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=367, PETRI_DIFFERENCE_SUBTRAHEND_STATES=63, PETRI_FLOW=1341, PETRI_PLACES=463, PETRI_TRANSITIONS=445} [2024-10-11 17:13:13,590 INFO L277 CegarLoopForPetriNet]: 386 programPoint places, 77 predicate places. [2024-10-11 17:13:13,590 INFO L471 AbstractCegarLoop]: Abstraction has has 463 places, 445 transitions, 1341 flow [2024-10-11 17:13:13,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 366.5263157894737) internal successors, (6964), 19 states have internal predecessors, (6964), 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) [2024-10-11 17:13:13,593 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:13:13,594 INFO L204 CegarLoopForPetriNet]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:13:13,614 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-11 17:13:13,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:13:13,795 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-10-11 17:13:13,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:13:13,796 INFO L85 PathProgramCache]: Analyzing trace with hash -127848191, now seen corresponding path program 2 times [2024-10-11 17:13:13,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:13:13,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640667300] [2024-10-11 17:13:13,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:13:13,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:13:14,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:13:16,972 INFO L134 CoverageAnalysis]: Checked inductivity of 8249 backedges. 4450 proven. 1897 refuted. 0 times theorem prover too weak. 1902 trivial. 0 not checked. [2024-10-11 17:13:16,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:13:16,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640667300] [2024-10-11 17:13:16,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640667300] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:13:16,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [394440836] [2024-10-11 17:13:16,974 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 17:13:16,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:13:16,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:13:16,976 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:13:16,977 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 17:13:17,724 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 17:13:17,724 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 17:13:17,727 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-11 17:13:17,753 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:13:17,818 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-10-11 17:13:17,842 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-10-11 17:13:17,874 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:13:17,875 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-10-11 17:13:17,915 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:13:17,916 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-10-11 17:13:17,958 INFO L134 CoverageAnalysis]: Checked inductivity of 8249 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8249 trivial. 0 not checked. [2024-10-11 17:13:17,958 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 17:13:17,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [394440836] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:13:17,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 17:13:17,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-10-11 17:13:17,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456493562] [2024-10-11 17:13:17,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:13:17,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:13:17,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:13:17,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:13:17,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-10-11 17:13:18,588 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 321 out of 411 [2024-10-11 17:13:18,590 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 463 places, 445 transitions, 1341 flow. Second operand has 6 states, 6 states have (on average 328.3333333333333) internal successors, (1970), 6 states have internal predecessors, (1970), 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) [2024-10-11 17:13:18,590 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:13:18,590 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 321 of 411 [2024-10-11 17:13:18,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:13:19,347 INFO L124 PetriNetUnfolderBase]: 85/2606 cut-off events. [2024-10-11 17:13:19,348 INFO L125 PetriNetUnfolderBase]: For 436/440 co-relation queries the response was YES. [2024-10-11 17:13:19,352 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3736 conditions, 2606 events. 85/2606 cut-off events. For 436/440 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3102 event pairs, 64 based on Foata normal form. 0/2534 useless extension candidates. Maximal degree in co-relation 3039. Up to 783 conditions per place. [2024-10-11 17:13:19,358 INFO L140 encePairwiseOnDemand]: 405/411 looper letters, 62 selfloop transitions, 5 changer transitions 0/444 dead transitions. [2024-10-11 17:13:19,359 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 467 places, 444 transitions, 1473 flow [2024-10-11 17:13:19,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:13:19,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:13:19,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1994 transitions. [2024-10-11 17:13:19,367 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8085969180859692 [2024-10-11 17:13:19,367 INFO L175 Difference]: Start difference. First operand has 463 places, 445 transitions, 1341 flow. Second operand 6 states and 1994 transitions. [2024-10-11 17:13:19,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 467 places, 444 transitions, 1473 flow [2024-10-11 17:13:19,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 460 places, 444 transitions, 1397 flow, removed 19 selfloop flow, removed 7 redundant places. [2024-10-11 17:13:19,384 INFO L231 Difference]: Finished difference. Result has 460 places, 444 transitions, 1273 flow [2024-10-11 17:13:19,386 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=411, PETRI_DIFFERENCE_MINUEND_FLOW=1263, PETRI_DIFFERENCE_MINUEND_PLACES=455, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=444, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=439, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1273, PETRI_PLACES=460, PETRI_TRANSITIONS=444} [2024-10-11 17:13:19,386 INFO L277 CegarLoopForPetriNet]: 386 programPoint places, 74 predicate places. [2024-10-11 17:13:19,387 INFO L471 AbstractCegarLoop]: Abstraction has has 460 places, 444 transitions, 1273 flow [2024-10-11 17:13:19,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 328.3333333333333) internal successors, (1970), 6 states have internal predecessors, (1970), 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) [2024-10-11 17:13:19,391 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:13:19,392 INFO L204 CegarLoopForPetriNet]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:13:19,414 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-11 17:13:19,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-11 17:13:19,594 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-10-11 17:13:19,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:13:19,594 INFO L85 PathProgramCache]: Analyzing trace with hash -323139907, now seen corresponding path program 1 times [2024-10-11 17:13:19,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:13:19,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411670033] [2024-10-11 17:13:19,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:13:19,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:13:19,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:13:22,355 INFO L134 CoverageAnalysis]: Checked inductivity of 8249 backedges. 4450 proven. 1897 refuted. 0 times theorem prover too weak. 1902 trivial. 0 not checked. [2024-10-11 17:13:22,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:13:22,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411670033] [2024-10-11 17:13:22,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411670033] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:13:22,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [782072710] [2024-10-11 17:13:22,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:13:22,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:13:22,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:13:22,358 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:13:22,358 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-11 17:13:23,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:13:23,761 INFO L255 TraceCheckSpWp]: Trace formula consists of 5536 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 17:13:23,782 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:13:24,544 INFO L134 CoverageAnalysis]: Checked inductivity of 8249 backedges. 4450 proven. 1897 refuted. 0 times theorem prover too weak. 1902 trivial. 0 not checked. [2024-10-11 17:13:24,544 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:13:25,449 INFO L134 CoverageAnalysis]: Checked inductivity of 8249 backedges. 4450 proven. 1897 refuted. 0 times theorem prover too weak. 1902 trivial. 0 not checked. [2024-10-11 17:13:25,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [782072710] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 17:13:25,450 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 17:13:25,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2024-10-11 17:13:25,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290166454] [2024-10-11 17:13:25,451 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 17:13:25,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-10-11 17:13:25,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:13:25,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-10-11 17:13:25,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-10-11 17:13:25,530 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 411 [2024-10-11 17:13:25,539 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 460 places, 444 transitions, 1273 flow. Second operand has 34 states, 34 states have (on average 372.11764705882354) internal successors, (12652), 34 states have internal predecessors, (12652), 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) [2024-10-11 17:13:25,539 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:13:25,539 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 411 [2024-10-11 17:13:25,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:13:27,709 INFO L124 PetriNetUnfolderBase]: 17/4448 cut-off events. [2024-10-11 17:13:27,710 INFO L125 PetriNetUnfolderBase]: For 3211/3212 co-relation queries the response was YES. [2024-10-11 17:13:27,712 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5244 conditions, 4448 events. 17/4448 cut-off events. For 3211/3212 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1214 event pairs, 8 based on Foata normal form. 24/4445 useless extension candidates. Maximal degree in co-relation 5202. Up to 78 conditions per place. [2024-10-11 17:13:27,717 INFO L140 encePairwiseOnDemand]: 405/411 looper letters, 51 selfloop transitions, 135 changer transitions 0/545 dead transitions. [2024-10-11 17:13:27,718 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 504 places, 545 transitions, 2409 flow [2024-10-11 17:13:27,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-10-11 17:13:27,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2024-10-11 17:13:27,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 16734 transitions. [2024-10-11 17:13:27,738 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9047850770478507 [2024-10-11 17:13:27,738 INFO L175 Difference]: Start difference. First operand has 460 places, 444 transitions, 1273 flow. Second operand 45 states and 16734 transitions. [2024-10-11 17:13:27,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 504 places, 545 transitions, 2409 flow [2024-10-11 17:13:27,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 499 places, 545 transitions, 2399 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:13:27,754 INFO L231 Difference]: Finished difference. Result has 508 places, 519 transitions, 2137 flow [2024-10-11 17:13:27,755 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=411, PETRI_DIFFERENCE_MINUEND_FLOW=1263, PETRI_DIFFERENCE_MINUEND_PLACES=455, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=444, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=375, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=2137, PETRI_PLACES=508, PETRI_TRANSITIONS=519} [2024-10-11 17:13:27,755 INFO L277 CegarLoopForPetriNet]: 386 programPoint places, 122 predicate places. [2024-10-11 17:13:27,755 INFO L471 AbstractCegarLoop]: Abstraction has has 508 places, 519 transitions, 2137 flow [2024-10-11 17:13:27,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 372.11764705882354) internal successors, (12652), 34 states have internal predecessors, (12652), 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) [2024-10-11 17:13:27,759 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:13:27,760 INFO L204 CegarLoopForPetriNet]: trace histogram [30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:13:27,792 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-11 17:13:27,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-10-11 17:13:27,961 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-10-11 17:13:27,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:13:27,962 INFO L85 PathProgramCache]: Analyzing trace with hash 907228275, now seen corresponding path program 1 times [2024-10-11 17:13:27,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:13:27,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860592101] [2024-10-11 17:13:27,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:13:27,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:13:28,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:13:31,116 INFO L134 CoverageAnalysis]: Checked inductivity of 39241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39241 trivial. 0 not checked. [2024-10-11 17:13:31,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:13:31,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860592101] [2024-10-11 17:13:31,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860592101] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:13:31,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:13:31,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 17:13:31,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766233998] [2024-10-11 17:13:31,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:13:31,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:13:31,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:13:31,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:13:31,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:13:31,144 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 373 out of 411 [2024-10-11 17:13:31,145 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 508 places, 519 transitions, 2137 flow. Second operand has 3 states, 3 states have (on average 374.3333333333333) internal successors, (1123), 3 states have internal predecessors, (1123), 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) [2024-10-11 17:13:31,146 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:13:31,146 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 373 of 411 [2024-10-11 17:13:31,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:13:33,177 INFO L124 PetriNetUnfolderBase]: 47/4722 cut-off events. [2024-10-11 17:13:33,177 INFO L125 PetriNetUnfolderBase]: For 1225/1229 co-relation queries the response was YES. [2024-10-11 17:13:33,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5606 conditions, 4722 events. 47/4722 cut-off events. For 1225/1229 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 3058 event pairs, 24 based on Foata normal form. 2/4654 useless extension candidates. Maximal degree in co-relation 5002. Up to 78 conditions per place. [2024-10-11 17:13:33,185 INFO L140 encePairwiseOnDemand]: 408/411 looper letters, 22 selfloop transitions, 2 changer transitions 0/527 dead transitions. [2024-10-11 17:13:33,186 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 510 places, 527 transitions, 2201 flow [2024-10-11 17:13:33,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:13:33,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:13:33,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1144 transitions. [2024-10-11 17:13:33,187 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9278183292781833 [2024-10-11 17:13:33,187 INFO L175 Difference]: Start difference. First operand has 508 places, 519 transitions, 2137 flow. Second operand 3 states and 1144 transitions. [2024-10-11 17:13:33,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 510 places, 527 transitions, 2201 flow [2024-10-11 17:13:33,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 492 places, 527 transitions, 2093 flow, removed 0 selfloop flow, removed 18 redundant places. [2024-10-11 17:13:33,206 INFO L231 Difference]: Finished difference. Result has 493 places, 519 transitions, 2037 flow [2024-10-11 17:13:33,207 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=411, PETRI_DIFFERENCE_MINUEND_FLOW=2029, PETRI_DIFFERENCE_MINUEND_PLACES=490, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=519, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=517, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2037, PETRI_PLACES=493, PETRI_TRANSITIONS=519} [2024-10-11 17:13:33,207 INFO L277 CegarLoopForPetriNet]: 386 programPoint places, 107 predicate places. [2024-10-11 17:13:33,208 INFO L471 AbstractCegarLoop]: Abstraction has has 493 places, 519 transitions, 2037 flow [2024-10-11 17:13:33,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 374.3333333333333) internal successors, (1123), 3 states have internal predecessors, (1123), 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) [2024-10-11 17:13:33,208 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:13:33,209 INFO L204 CegarLoopForPetriNet]: trace histogram [30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:13:33,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-11 17:13:33,209 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-10-11 17:13:33,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:13:33,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1438112835, now seen corresponding path program 2 times [2024-10-11 17:13:33,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:13:33,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648558918] [2024-10-11 17:13:33,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:13:33,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:13:34,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:13:42,069 INFO L134 CoverageAnalysis]: Checked inductivity of 39241 backedges. 20306 proven. 9465 refuted. 0 times theorem prover too weak. 9470 trivial. 0 not checked. [2024-10-11 17:13:42,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:13:42,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648558918] [2024-10-11 17:13:42,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648558918] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:13:42,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [792272326] [2024-10-11 17:13:42,070 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 17:13:42,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:13:42,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:13:42,072 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:13:42,074 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-11 17:13:43,650 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 17:13:43,650 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 17:13:43,657 INFO L255 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-11 17:13:43,703 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:13:43,902 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-11 17:13:43,936 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-10-11 17:13:43,974 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:13:43,974 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2024-10-11 17:13:44,022 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:13:44,023 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2024-10-11 17:13:44,066 INFO L134 CoverageAnalysis]: Checked inductivity of 39241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39241 trivial. 0 not checked. [2024-10-11 17:13:44,066 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 17:13:44,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [792272326] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:13:44,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 17:13:44,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [33] total 41 [2024-10-11 17:13:44,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158294113] [2024-10-11 17:13:44,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:13:44,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 17:13:44,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:13:44,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 17:13:44,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=319, Invalid=1321, Unknown=0, NotChecked=0, Total=1640 [2024-10-11 17:13:44,589 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 411 [2024-10-11 17:13:44,591 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 493 places, 519 transitions, 2037 flow. Second operand has 10 states, 10 states have (on average 277.9) internal successors, (2779), 10 states have internal predecessors, (2779), 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) [2024-10-11 17:13:44,591 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:13:44,591 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 411 [2024-10-11 17:13:44,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:13:48,846 INFO L124 PetriNetUnfolderBase]: 630/6728 cut-off events. [2024-10-11 17:13:48,846 INFO L125 PetriNetUnfolderBase]: For 1273/1289 co-relation queries the response was YES. [2024-10-11 17:13:48,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10311 conditions, 6728 events. 630/6728 cut-off events. For 1273/1289 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 19976 event pairs, 468 based on Foata normal form. 2/6494 useless extension candidates. Maximal degree in co-relation 6437. Up to 1626 conditions per place. [2024-10-11 17:13:48,864 INFO L140 encePairwiseOnDemand]: 393/411 looper letters, 178 selfloop transitions, 18 changer transitions 0/600 dead transitions. [2024-10-11 17:13:48,864 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 502 places, 600 transitions, 2594 flow [2024-10-11 17:13:48,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 17:13:48,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-11 17:13:48,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2917 transitions. [2024-10-11 17:13:48,868 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7097323600973237 [2024-10-11 17:13:48,868 INFO L175 Difference]: Start difference. First operand has 493 places, 519 transitions, 2037 flow. Second operand 10 states and 2917 transitions. [2024-10-11 17:13:48,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 502 places, 600 transitions, 2594 flow [2024-10-11 17:13:48,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 500 places, 600 transitions, 2588 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 17:13:48,888 INFO L231 Difference]: Finished difference. Result has 505 places, 525 transitions, 2107 flow [2024-10-11 17:13:48,889 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=411, PETRI_DIFFERENCE_MINUEND_FLOW=2033, PETRI_DIFFERENCE_MINUEND_PLACES=491, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=519, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=502, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2107, PETRI_PLACES=505, PETRI_TRANSITIONS=525} [2024-10-11 17:13:48,889 INFO L277 CegarLoopForPetriNet]: 386 programPoint places, 119 predicate places. [2024-10-11 17:13:48,889 INFO L471 AbstractCegarLoop]: Abstraction has has 505 places, 525 transitions, 2107 flow [2024-10-11 17:13:48,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 277.9) internal successors, (2779), 10 states have internal predecessors, (2779), 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) [2024-10-11 17:13:48,890 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:13:48,891 INFO L204 CegarLoopForPetriNet]: trace histogram [30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:13:48,913 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-11 17:13:49,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-10-11 17:13:49,093 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-10-11 17:13:49,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:13:49,093 INFO L85 PathProgramCache]: Analyzing trace with hash 2113455287, now seen corresponding path program 1 times [2024-10-11 17:13:49,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:13:49,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584258422] [2024-10-11 17:13:49,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:13:49,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:13:49,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:13:58,070 INFO L134 CoverageAnalysis]: Checked inductivity of 39251 backedges. 20306 proven. 9465 refuted. 0 times theorem prover too weak. 9480 trivial. 0 not checked. [2024-10-11 17:13:58,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:13:58,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584258422] [2024-10-11 17:13:58,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584258422] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:13:58,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [212679367] [2024-10-11 17:13:58,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:13:58,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:13:58,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:13:58,073 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:13:58,074 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-11 17:14:00,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:14:01,018 INFO L255 TraceCheckSpWp]: Trace formula consists of 11477 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-10-11 17:14:01,056 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:14:02,242 INFO L134 CoverageAnalysis]: Checked inductivity of 39251 backedges. 20306 proven. 9465 refuted. 0 times theorem prover too weak. 9480 trivial. 0 not checked. [2024-10-11 17:14:02,242 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:14:04,254 INFO L134 CoverageAnalysis]: Checked inductivity of 39251 backedges. 20306 proven. 9465 refuted. 0 times theorem prover too weak. 9480 trivial. 0 not checked. [2024-10-11 17:14:04,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [212679367] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 17:14:04,255 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 17:14:04,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 63 [2024-10-11 17:14:04,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127614106] [2024-10-11 17:14:04,256 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 17:14:04,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2024-10-11 17:14:04,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:14:04,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2024-10-11 17:14:04,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1023, Invalid=2883, Unknown=0, NotChecked=0, Total=3906 [2024-10-11 17:14:04,331 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 411 [2024-10-11 17:14:04,353 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 505 places, 525 transitions, 2107 flow. Second operand has 63 states, 63 states have (on average 372.1111111111111) internal successors, (23443), 63 states have internal predecessors, (23443), 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) [2024-10-11 17:14:04,353 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:14:04,353 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 411 [2024-10-11 17:14:04,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand