./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --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 e9065224c0b163ad014fc0aee4009feab43ed37ef70e06d8d8f3b14d045f755a --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 18:49:33,404 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 18:49:33,406 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 18:49:33,430 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 18:49:33,431 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 18:49:33,432 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 18:49:33,433 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 18:49:33,434 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 18:49:33,436 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 18:49:33,436 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 18:49:33,437 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 18:49:33,438 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 18:49:33,439 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 18:49:33,440 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 18:49:33,440 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 18:49:33,441 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 18:49:33,442 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 18:49:33,443 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 18:49:33,445 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 18:49:33,446 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 18:49:33,448 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 18:49:33,449 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 18:49:33,450 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 18:49:33,451 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 18:49:33,463 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 18:49:33,464 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 18:49:33,464 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 18:49:33,465 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 18:49:33,465 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 18:49:33,466 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 18:49:33,467 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 18:49:33,467 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 18:49:33,468 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 18:49:33,469 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 18:49:33,470 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 18:49:33,470 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 18:49:33,471 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 18:49:33,471 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 18:49:33,471 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 18:49:33,472 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 18:49:33,473 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 18:49:33,475 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 18:49:33,495 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 18:49:33,496 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 18:49:33,496 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 18:49:33,496 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 18:49:33,497 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 18:49:33,497 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 18:49:33,498 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 18:49:33,498 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 18:49:33,498 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 18:49:33,498 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 18:49:33,498 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 18:49:33,499 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 18:49:33,499 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 18:49:33,499 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 18:49:33,499 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 18:49:33,500 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 18:49:33,500 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 18:49:33,500 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 18:49:33,500 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 18:49:33,500 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 18:49:33,501 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 18:49:33,501 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 18:49:33,501 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 18:49:33,502 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 18:49:33,502 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 18:49:33,502 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 18:49:33,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 18:49:33,503 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 18:49:33,503 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 18:49:33,503 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 18:49:33,503 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 18:49:33,503 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 18:49:33,504 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 18:49:33,504 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 18:49:33,504 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 18:49:33,504 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 18:49:33,504 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 18:49:33,505 INFO L138 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e9065224c0b163ad014fc0aee4009feab43ed37ef70e06d8d8f3b14d045f755a Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 18:49:33,812 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 18:49:33,837 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 18:49:33,839 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 18:49:33,840 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 18:49:33,841 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 18:49:33,842 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c [2023-08-29 18:49:34,911 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 18:49:35,108 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 18:49:35,108 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c [2023-08-29 18:49:35,114 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c230139ca/19df020798ce4f6bb5924a3c816e17f7/FLAG5f823fd8e [2023-08-29 18:49:35,135 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c230139ca/19df020798ce4f6bb5924a3c816e17f7 [2023-08-29 18:49:35,138 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 18:49:35,139 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 18:49:35,143 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 18:49:35,144 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 18:49:35,147 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 18:49:35,147 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:49:35" (1/1) ... [2023-08-29 18:49:35,150 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1148d9d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:49:35, skipping insertion in model container [2023-08-29 18:49:35,150 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:49:35" (1/1) ... [2023-08-29 18:49:35,156 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 18:49:35,176 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 18:49:35,385 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c[2566,2579] [2023-08-29 18:49:35,395 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 18:49:35,404 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 18:49:35,444 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c[2566,2579] [2023-08-29 18:49:35,451 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 18:49:35,472 INFO L208 MainTranslator]: Completed translation [2023-08-29 18:49:35,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:49:35 WrapperNode [2023-08-29 18:49:35,474 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 18:49:35,475 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 18:49:35,475 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 18:49:35,475 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 18:49:35,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:49:35" (1/1) ... [2023-08-29 18:49:35,502 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:49:35" (1/1) ... [2023-08-29 18:49:35,541 INFO L138 Inliner]: procedures = 24, calls = 35, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 294 [2023-08-29 18:49:35,542 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 18:49:35,543 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 18:49:35,545 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 18:49:35,545 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 18:49:35,558 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:49:35" (1/1) ... [2023-08-29 18:49:35,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:49:35" (1/1) ... [2023-08-29 18:49:35,564 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:49:35" (1/1) ... [2023-08-29 18:49:35,565 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:49:35" (1/1) ... [2023-08-29 18:49:35,578 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:49:35" (1/1) ... [2023-08-29 18:49:35,591 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:49:35" (1/1) ... [2023-08-29 18:49:35,594 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:49:35" (1/1) ... [2023-08-29 18:49:35,600 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:49:35" (1/1) ... [2023-08-29 18:49:35,606 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 18:49:35,607 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 18:49:35,607 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 18:49:35,607 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 18:49:35,608 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:49:35" (1/1) ... [2023-08-29 18:49:35,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 18:49:35,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 18:49:35,642 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 18:49:35,657 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 18:49:35,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 18:49:35,682 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-29 18:49:35,682 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-29 18:49:35,682 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-29 18:49:35,683 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-29 18:49:35,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 18:49:35,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 18:49:35,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 18:49:35,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-29 18:49:35,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 18:49:35,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 18:49:35,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 18:49:35,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 18:49:35,685 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 18:49:35,816 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 18:49:35,818 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 18:49:36,370 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 18:49:36,380 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 18:49:36,380 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-08-29 18:49:36,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:49:36 BoogieIcfgContainer [2023-08-29 18:49:36,382 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 18:49:36,389 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 18:49:36,390 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 18:49:36,392 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 18:49:36,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 06:49:35" (1/3) ... [2023-08-29 18:49:36,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35ada30d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:49:36, skipping insertion in model container [2023-08-29 18:49:36,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:49:35" (2/3) ... [2023-08-29 18:49:36,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35ada30d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:49:36, skipping insertion in model container [2023-08-29 18:49:36,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:49:36" (3/3) ... [2023-08-29 18:49:36,395 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-chromosome-opt-symm.wvr.c [2023-08-29 18:49:36,402 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 18:49:36,410 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 18:49:36,410 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2023-08-29 18:49:36,411 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 18:49:36,530 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-29 18:49:36,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 333 places, 345 transitions, 706 flow [2023-08-29 18:49:36,719 INFO L130 PetriNetUnfolder]: 19/343 cut-off events. [2023-08-29 18:49:36,720 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 18:49:36,729 INFO L83 FinitePrefix]: Finished finitePrefix Result has 352 conditions, 343 events. 19/343 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 662 event pairs, 0 based on Foata normal form. 0/292 useless extension candidates. Maximal degree in co-relation 223. Up to 3 conditions per place. [2023-08-29 18:49:36,729 INFO L82 GeneralOperation]: Start removeDead. Operand has 333 places, 345 transitions, 706 flow [2023-08-29 18:49:36,743 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 317 places, 328 transitions, 668 flow [2023-08-29 18:49:36,749 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 18:49:36,762 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 317 places, 328 transitions, 668 flow [2023-08-29 18:49:36,765 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 317 places, 328 transitions, 668 flow [2023-08-29 18:49:36,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 317 places, 328 transitions, 668 flow [2023-08-29 18:49:36,829 INFO L130 PetriNetUnfolder]: 18/328 cut-off events. [2023-08-29 18:49:36,829 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 18:49:36,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 337 conditions, 328 events. 18/328 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 657 event pairs, 0 based on Foata normal form. 0/279 useless extension candidates. Maximal degree in co-relation 223. Up to 3 conditions per place. [2023-08-29 18:49:36,843 INFO L119 LiptonReduction]: Number of co-enabled transitions 18468 [2023-08-29 18:49:42,771 INFO L134 LiptonReduction]: Checked pairs total: 120361 [2023-08-29 18:49:42,771 INFO L136 LiptonReduction]: Total number of compositions: 263 [2023-08-29 18:49:42,782 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 18:49:42,787 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@c54b5ea, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 18:49:42,788 INFO L358 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2023-08-29 18:49:42,790 INFO L130 PetriNetUnfolder]: 1/2 cut-off events. [2023-08-29 18:49:42,790 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 18:49:42,790 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:49:42,791 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-29 18:49:42,791 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-08-29 18:49:42,794 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:49:42,795 INFO L85 PathProgramCache]: Analyzing trace with hash 39268, now seen corresponding path program 1 times [2023-08-29 18:49:42,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:49:42,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590489419] [2023-08-29 18:49:42,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:49:42,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:49:42,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:49:42,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:49:42,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:49:42,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590489419] [2023-08-29 18:49:42,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590489419] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:49:42,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:49:42,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 18:49:42,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666985545] [2023-08-29 18:49:42,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:49:42,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 18:49:43,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:49:43,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 18:49:43,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 18:49:43,023 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 608 [2023-08-29 18:49:43,026 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 131 transitions, 274 flow. Second operand has 2 states, 2 states have (on average 330.0) internal successors, (660), 2 states have internal predecessors, (660), 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) [2023-08-29 18:49:43,026 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:49:43,026 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 608 [2023-08-29 18:49:43,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:49:43,221 INFO L130 PetriNetUnfolder]: 350/1278 cut-off events. [2023-08-29 18:49:43,222 INFO L131 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2023-08-29 18:49:43,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1854 conditions, 1278 events. 350/1278 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 8810 event pairs, 228 based on Foata normal form. 41/1069 useless extension candidates. Maximal degree in co-relation 1639. Up to 545 conditions per place. [2023-08-29 18:49:43,230 INFO L137 encePairwiseOnDemand]: 595/608 looper letters, 33 selfloop transitions, 0 changer transitions 1/118 dead transitions. [2023-08-29 18:49:43,231 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 118 transitions, 316 flow [2023-08-29 18:49:43,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 18:49:43,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 18:49:43,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 705 transitions. [2023-08-29 18:49:43,251 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5797697368421053 [2023-08-29 18:49:43,252 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 705 transitions. [2023-08-29 18:49:43,252 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 705 transitions. [2023-08-29 18:49:43,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:49:43,258 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 705 transitions. [2023-08-29 18:49:43,264 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 352.5) internal successors, (705), 2 states have internal predecessors, (705), 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) [2023-08-29 18:49:43,271 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 608.0) internal successors, (1824), 3 states have internal predecessors, (1824), 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) [2023-08-29 18:49:43,272 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 608.0) internal successors, (1824), 3 states have internal predecessors, (1824), 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) [2023-08-29 18:49:43,274 INFO L175 Difference]: Start difference. First operand has 127 places, 131 transitions, 274 flow. Second operand 2 states and 705 transitions. [2023-08-29 18:49:43,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 118 transitions, 316 flow [2023-08-29 18:49:43,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 118 transitions, 308 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-29 18:49:43,283 INFO L231 Difference]: Finished difference. Result has 114 places, 117 transitions, 237 flow [2023-08-29 18:49:43,285 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=608, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=237, PETRI_PLACES=114, PETRI_TRANSITIONS=117} [2023-08-29 18:49:43,290 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -13 predicate places. [2023-08-29 18:49:43,291 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 117 transitions, 237 flow [2023-08-29 18:49:43,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 330.0) internal successors, (660), 2 states have internal predecessors, (660), 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) [2023-08-29 18:49:43,291 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:49:43,292 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-29 18:49:43,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 18:49:43,294 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-08-29 18:49:43,303 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:49:43,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1962914384, now seen corresponding path program 1 times [2023-08-29 18:49:43,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:49:43,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761088599] [2023-08-29 18:49:43,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:49:43,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:49:43,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:49:43,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:49:43,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:49:43,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761088599] [2023-08-29 18:49:43,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761088599] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:49:43,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:49:43,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:49:43,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288501928] [2023-08-29 18:49:43,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:49:43,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:49:43,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:49:43,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:49:43,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:49:43,535 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 321 out of 608 [2023-08-29 18:49:43,536 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 117 transitions, 237 flow. Second operand has 3 states, 3 states have (on average 322.6666666666667) internal successors, (968), 3 states have internal predecessors, (968), 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) [2023-08-29 18:49:43,537 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:49:43,537 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 321 of 608 [2023-08-29 18:49:43,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:49:43,709 INFO L130 PetriNetUnfolder]: 350/1279 cut-off events. [2023-08-29 18:49:43,709 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2023-08-29 18:49:43,712 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1835 conditions, 1279 events. 350/1279 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 8827 event pairs, 228 based on Foata normal form. 0/1029 useless extension candidates. Maximal degree in co-relation 1832. Up to 544 conditions per place. [2023-08-29 18:49:43,717 INFO L137 encePairwiseOnDemand]: 603/608 looper letters, 31 selfloop transitions, 4 changer transitions 0/119 dead transitions. [2023-08-29 18:49:43,717 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 119 transitions, 311 flow [2023-08-29 18:49:43,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:49:43,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:49:43,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1000 transitions. [2023-08-29 18:49:43,720 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5482456140350878 [2023-08-29 18:49:43,720 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1000 transitions. [2023-08-29 18:49:43,720 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1000 transitions. [2023-08-29 18:49:43,721 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:49:43,721 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1000 transitions. [2023-08-29 18:49:43,723 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 333.3333333333333) internal successors, (1000), 3 states have internal predecessors, (1000), 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) [2023-08-29 18:49:43,727 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 608.0) internal successors, (2432), 4 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:49:43,728 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 608.0) internal successors, (2432), 4 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:49:43,728 INFO L175 Difference]: Start difference. First operand has 114 places, 117 transitions, 237 flow. Second operand 3 states and 1000 transitions. [2023-08-29 18:49:43,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 119 transitions, 311 flow [2023-08-29 18:49:43,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 119 transitions, 311 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:49:43,731 INFO L231 Difference]: Finished difference. Result has 116 places, 119 transitions, 259 flow [2023-08-29 18:49:43,731 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=608, PETRI_DIFFERENCE_MINUEND_FLOW=237, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=259, PETRI_PLACES=116, PETRI_TRANSITIONS=119} [2023-08-29 18:49:43,732 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -11 predicate places. [2023-08-29 18:49:43,732 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 119 transitions, 259 flow [2023-08-29 18:49:43,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 322.6666666666667) internal successors, (968), 3 states have internal predecessors, (968), 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) [2023-08-29 18:49:43,733 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:49:43,733 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:49:43,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 18:49:43,734 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-08-29 18:49:43,734 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:49:43,734 INFO L85 PathProgramCache]: Analyzing trace with hash 829662156, now seen corresponding path program 1 times [2023-08-29 18:49:43,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:49:43,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614413334] [2023-08-29 18:49:43,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:49:43,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:49:43,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:49:43,799 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-29 18:49:43,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:49:43,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614413334] [2023-08-29 18:49:43,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614413334] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:49:43,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:49:43,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:49:43,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304787137] [2023-08-29 18:49:43,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:49:43,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:49:43,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:49:43,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:49:43,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:49:43,820 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 322 out of 608 [2023-08-29 18:49:43,821 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 119 transitions, 259 flow. Second operand has 3 states, 3 states have (on average 324.6666666666667) internal successors, (974), 3 states have internal predecessors, (974), 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) [2023-08-29 18:49:43,822 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:49:43,822 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 322 of 608 [2023-08-29 18:49:43,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:49:43,989 INFO L130 PetriNetUnfolder]: 380/1404 cut-off events. [2023-08-29 18:49:43,989 INFO L131 PetriNetUnfolder]: For 11/27 co-relation queries the response was YES. [2023-08-29 18:49:43,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2019 conditions, 1404 events. 380/1404 cut-off events. For 11/27 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 9788 event pairs, 110 based on Foata normal form. 2/1148 useless extension candidates. Maximal degree in co-relation 2014. Up to 576 conditions per place. [2023-08-29 18:49:43,998 INFO L137 encePairwiseOnDemand]: 604/608 looper letters, 41 selfloop transitions, 2 changer transitions 0/124 dead transitions. [2023-08-29 18:49:43,999 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 124 transitions, 356 flow [2023-08-29 18:49:43,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:49:43,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:49:44,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1009 transitions. [2023-08-29 18:49:44,002 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5531798245614035 [2023-08-29 18:49:44,002 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1009 transitions. [2023-08-29 18:49:44,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1009 transitions. [2023-08-29 18:49:44,003 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:49:44,003 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1009 transitions. [2023-08-29 18:49:44,005 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 336.3333333333333) internal successors, (1009), 3 states have internal predecessors, (1009), 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) [2023-08-29 18:49:44,008 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 608.0) internal successors, (2432), 4 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:49:44,009 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 608.0) internal successors, (2432), 4 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:49:44,009 INFO L175 Difference]: Start difference. First operand has 116 places, 119 transitions, 259 flow. Second operand 3 states and 1009 transitions. [2023-08-29 18:49:44,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 124 transitions, 356 flow [2023-08-29 18:49:44,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 124 transitions, 352 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 18:49:44,014 INFO L231 Difference]: Finished difference. Result has 116 places, 119 transitions, 265 flow [2023-08-29 18:49:44,014 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=608, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=265, PETRI_PLACES=116, PETRI_TRANSITIONS=119} [2023-08-29 18:49:44,016 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -11 predicate places. [2023-08-29 18:49:44,018 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 119 transitions, 265 flow [2023-08-29 18:49:44,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 324.6666666666667) internal successors, (974), 3 states have internal predecessors, (974), 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) [2023-08-29 18:49:44,019 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:49:44,020 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:49:44,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 18:49:44,020 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-08-29 18:49:44,021 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:49:44,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1557113214, now seen corresponding path program 1 times [2023-08-29 18:49:44,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:49:44,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214002775] [2023-08-29 18:49:44,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:49:44,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:49:44,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:49:44,091 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-29 18:49:44,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:49:44,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214002775] [2023-08-29 18:49:44,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214002775] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:49:44,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:49:44,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:49:44,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389600832] [2023-08-29 18:49:44,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:49:44,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:49:44,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:49:44,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:49:44,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:49:44,102 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 322 out of 608 [2023-08-29 18:49:44,104 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 119 transitions, 265 flow. Second operand has 3 states, 3 states have (on average 325.3333333333333) internal successors, (976), 3 states have internal predecessors, (976), 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) [2023-08-29 18:49:44,104 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:49:44,104 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 322 of 608 [2023-08-29 18:49:44,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:49:44,293 INFO L130 PetriNetUnfolder]: 438/1831 cut-off events. [2023-08-29 18:49:44,293 INFO L131 PetriNetUnfolder]: For 30/75 co-relation queries the response was YES. [2023-08-29 18:49:44,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2585 conditions, 1831 events. 438/1831 cut-off events. For 30/75 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 13190 event pairs, 132 based on Foata normal form. 1/1462 useless extension candidates. Maximal degree in co-relation 2580. Up to 660 conditions per place. [2023-08-29 18:49:44,302 INFO L137 encePairwiseOnDemand]: 604/608 looper letters, 43 selfloop transitions, 2 changer transitions 0/124 dead transitions. [2023-08-29 18:49:44,302 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 124 transitions, 369 flow [2023-08-29 18:49:44,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:49:44,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:49:44,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1010 transitions. [2023-08-29 18:49:44,305 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5537280701754386 [2023-08-29 18:49:44,306 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1010 transitions. [2023-08-29 18:49:44,306 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1010 transitions. [2023-08-29 18:49:44,306 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:49:44,306 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1010 transitions. [2023-08-29 18:49:44,308 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 336.6666666666667) internal successors, (1010), 3 states have internal predecessors, (1010), 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) [2023-08-29 18:49:44,311 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 608.0) internal successors, (2432), 4 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:49:44,313 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 608.0) internal successors, (2432), 4 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:49:44,313 INFO L175 Difference]: Start difference. First operand has 116 places, 119 transitions, 265 flow. Second operand 3 states and 1010 transitions. [2023-08-29 18:49:44,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 124 transitions, 369 flow [2023-08-29 18:49:44,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 124 transitions, 369 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:49:44,316 INFO L231 Difference]: Finished difference. Result has 117 places, 119 transitions, 275 flow [2023-08-29 18:49:44,316 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=608, PETRI_DIFFERENCE_MINUEND_FLOW=261, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=275, PETRI_PLACES=117, PETRI_TRANSITIONS=119} [2023-08-29 18:49:44,317 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -10 predicate places. [2023-08-29 18:49:44,317 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 119 transitions, 275 flow [2023-08-29 18:49:44,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 325.3333333333333) internal successors, (976), 3 states have internal predecessors, (976), 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) [2023-08-29 18:49:44,318 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:49:44,318 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:49:44,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 18:49:44,318 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-08-29 18:49:44,318 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:49:44,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1513606697, now seen corresponding path program 1 times [2023-08-29 18:49:44,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:49:44,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534489392] [2023-08-29 18:49:44,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:49:44,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:49:44,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:49:44,377 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-29 18:49:44,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:49:44,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534489392] [2023-08-29 18:49:44,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534489392] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:49:44,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:49:44,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:49:44,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49430777] [2023-08-29 18:49:44,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:49:44,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:49:44,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:49:44,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:49:44,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:49:44,394 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 316 out of 608 [2023-08-29 18:49:44,395 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 119 transitions, 275 flow. Second operand has 3 states, 3 states have (on average 319.3333333333333) internal successors, (958), 3 states have internal predecessors, (958), 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) [2023-08-29 18:49:44,396 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:49:44,396 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 316 of 608 [2023-08-29 18:49:44,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:49:44,646 INFO L130 PetriNetUnfolder]: 647/2344 cut-off events. [2023-08-29 18:49:44,647 INFO L131 PetriNetUnfolder]: For 84/84 co-relation queries the response was YES. [2023-08-29 18:49:44,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3510 conditions, 2344 events. 647/2344 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 17447 event pairs, 123 based on Foata normal form. 0/2000 useless extension candidates. Maximal degree in co-relation 3504. Up to 866 conditions per place. [2023-08-29 18:49:44,658 INFO L137 encePairwiseOnDemand]: 602/608 looper letters, 55 selfloop transitions, 2 changer transitions 0/130 dead transitions. [2023-08-29 18:49:44,658 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 130 transitions, 417 flow [2023-08-29 18:49:44,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:49:44,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:49:44,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1005 transitions. [2023-08-29 18:49:44,661 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5509868421052632 [2023-08-29 18:49:44,661 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1005 transitions. [2023-08-29 18:49:44,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1005 transitions. [2023-08-29 18:49:44,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:49:44,662 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1005 transitions. [2023-08-29 18:49:44,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 335.0) internal successors, (1005), 3 states have internal predecessors, (1005), 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) [2023-08-29 18:49:44,667 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 608.0) internal successors, (2432), 4 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:49:44,668 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 608.0) internal successors, (2432), 4 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:49:44,668 INFO L175 Difference]: Start difference. First operand has 117 places, 119 transitions, 275 flow. Second operand 3 states and 1005 transitions. [2023-08-29 18:49:44,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 130 transitions, 417 flow [2023-08-29 18:49:44,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 130 transitions, 417 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:49:44,671 INFO L231 Difference]: Finished difference. Result has 116 places, 117 transitions, 281 flow [2023-08-29 18:49:44,672 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=608, PETRI_DIFFERENCE_MINUEND_FLOW=267, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=281, PETRI_PLACES=116, PETRI_TRANSITIONS=117} [2023-08-29 18:49:44,672 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -11 predicate places. [2023-08-29 18:49:44,673 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 117 transitions, 281 flow [2023-08-29 18:49:44,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 319.3333333333333) internal successors, (958), 3 states have internal predecessors, (958), 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) [2023-08-29 18:49:44,673 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:49:44,673 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:49:44,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 18:49:44,674 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-08-29 18:49:44,674 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:49:44,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1968153415, now seen corresponding path program 1 times [2023-08-29 18:49:44,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:49:44,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196771705] [2023-08-29 18:49:44,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:49:44,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:49:44,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:49:44,751 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-29 18:49:44,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:49:44,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196771705] [2023-08-29 18:49:44,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196771705] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 18:49:44,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [249781677] [2023-08-29 18:49:44,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:49:44,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 18:49:44,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 18:49:44,759 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 18:49:44,780 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-29 18:49:44,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:49:44,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-29 18:49:44,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 18:49:44,922 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-29 18:49:44,922 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 18:49:44,948 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-29 18:49:44,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [249781677] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 18:49:44,961 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 18:49:44,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2023-08-29 18:49:44,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450986599] [2023-08-29 18:49:44,962 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 18:49:44,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-29 18:49:44,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:49:44,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-29 18:49:44,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-08-29 18:49:45,154 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 317 out of 608 [2023-08-29 18:49:45,158 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 117 transitions, 281 flow. Second operand has 8 states, 8 states have (on average 318.875) internal successors, (2551), 8 states have internal predecessors, (2551), 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) [2023-08-29 18:49:45,158 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:49:45,158 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 317 of 608 [2023-08-29 18:49:45,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:49:45,419 INFO L130 PetriNetUnfolder]: 467/1575 cut-off events. [2023-08-29 18:49:45,420 INFO L131 PetriNetUnfolder]: For 130/153 co-relation queries the response was YES. [2023-08-29 18:49:45,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2557 conditions, 1575 events. 467/1575 cut-off events. For 130/153 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 11034 event pairs, 240 based on Foata normal form. 0/1299 useless extension candidates. Maximal degree in co-relation 2550. Up to 724 conditions per place. [2023-08-29 18:49:45,431 INFO L137 encePairwiseOnDemand]: 603/608 looper letters, 34 selfloop transitions, 10 changer transitions 0/123 dead transitions. [2023-08-29 18:49:45,431 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 123 transitions, 393 flow [2023-08-29 18:49:45,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 18:49:45,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 18:49:45,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1949 transitions. [2023-08-29 18:49:45,436 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.534265350877193 [2023-08-29 18:49:45,436 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1949 transitions. [2023-08-29 18:49:45,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1949 transitions. [2023-08-29 18:49:45,437 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:49:45,437 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1949 transitions. [2023-08-29 18:49:45,441 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 324.8333333333333) internal successors, (1949), 6 states have internal predecessors, (1949), 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) [2023-08-29 18:49:45,447 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 608.0) internal successors, (4256), 7 states have internal predecessors, (4256), 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) [2023-08-29 18:49:45,448 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 608.0) internal successors, (4256), 7 states have internal predecessors, (4256), 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) [2023-08-29 18:49:45,448 INFO L175 Difference]: Start difference. First operand has 116 places, 117 transitions, 281 flow. Second operand 6 states and 1949 transitions. [2023-08-29 18:49:45,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 123 transitions, 393 flow [2023-08-29 18:49:45,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 123 transitions, 393 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:49:45,479 INFO L231 Difference]: Finished difference. Result has 124 places, 123 transitions, 347 flow [2023-08-29 18:49:45,479 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=608, PETRI_DIFFERENCE_MINUEND_FLOW=281, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=347, PETRI_PLACES=124, PETRI_TRANSITIONS=123} [2023-08-29 18:49:45,480 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -3 predicate places. [2023-08-29 18:49:45,480 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 123 transitions, 347 flow [2023-08-29 18:49:45,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 318.875) internal successors, (2551), 8 states have internal predecessors, (2551), 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) [2023-08-29 18:49:45,481 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:49:45,481 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:49:45,494 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-29 18:49:45,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-08-29 18:49:45,689 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-08-29 18:49:45,689 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:49:45,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1185110845, now seen corresponding path program 2 times [2023-08-29 18:49:45,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:49:45,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975695368] [2023-08-29 18:49:45,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:49:45,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:49:45,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:49:45,836 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-29 18:49:45,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:49:45,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975695368] [2023-08-29 18:49:45,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975695368] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 18:49:45,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1963388765] [2023-08-29 18:49:45,837 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-29 18:49:45,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 18:49:45,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 18:49:45,838 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 18:49:45,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-29 18:49:45,955 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-29 18:49:45,955 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-29 18:49:45,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 19 conjunts are in the unsatisfiable core [2023-08-29 18:49:45,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 18:49:46,016 INFO L350 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 [2023-08-29 18:49:46,038 INFO L350 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 [2023-08-29 18:49:46,062 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-29 18:49:46,063 INFO L350 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 [2023-08-29 18:49:46,097 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-29 18:49:46,098 INFO L350 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 [2023-08-29 18:49:46,120 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-29 18:49:46,121 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 18:49:46,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1963388765] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:49:46,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-29 18:49:46,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 11 [2023-08-29 18:49:46,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502319485] [2023-08-29 18:49:46,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:49:46,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-29 18:49:46,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:49:46,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-29 18:49:46,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-08-29 18:49:46,590 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 312 out of 608 [2023-08-29 18:49:46,592 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 123 transitions, 347 flow. Second operand has 7 states, 7 states have (on average 313.85714285714283) internal successors, (2197), 7 states have internal predecessors, (2197), 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) [2023-08-29 18:49:46,592 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:49:46,592 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 312 of 608 [2023-08-29 18:49:46,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:49:47,152 INFO L130 PetriNetUnfolder]: 1672/3749 cut-off events. [2023-08-29 18:49:47,152 INFO L131 PetriNetUnfolder]: For 368/368 co-relation queries the response was YES. [2023-08-29 18:49:47,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6792 conditions, 3749 events. 1672/3749 cut-off events. For 368/368 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 27125 event pairs, 78 based on Foata normal form. 0/3138 useless extension candidates. Maximal degree in co-relation 6781. Up to 949 conditions per place. [2023-08-29 18:49:47,179 INFO L137 encePairwiseOnDemand]: 602/608 looper letters, 143 selfloop transitions, 5 changer transitions 0/222 dead transitions. [2023-08-29 18:49:47,180 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 222 transitions, 901 flow [2023-08-29 18:49:47,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-29 18:49:47,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-29 18:49:47,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2310 transitions. [2023-08-29 18:49:47,186 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5427631578947368 [2023-08-29 18:49:47,186 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2310 transitions. [2023-08-29 18:49:47,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2310 transitions. [2023-08-29 18:49:47,188 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:49:47,188 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2310 transitions. [2023-08-29 18:49:47,193 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 330.0) internal successors, (2310), 7 states have internal predecessors, (2310), 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) [2023-08-29 18:49:47,199 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 608.0) internal successors, (4864), 8 states have internal predecessors, (4864), 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) [2023-08-29 18:49:47,200 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 608.0) internal successors, (4864), 8 states have internal predecessors, (4864), 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) [2023-08-29 18:49:47,201 INFO L175 Difference]: Start difference. First operand has 124 places, 123 transitions, 347 flow. Second operand 7 states and 2310 transitions. [2023-08-29 18:49:47,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 222 transitions, 901 flow [2023-08-29 18:49:47,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 222 transitions, 885 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-08-29 18:49:47,206 INFO L231 Difference]: Finished difference. Result has 128 places, 122 transitions, 339 flow [2023-08-29 18:49:47,206 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=608, PETRI_DIFFERENCE_MINUEND_FLOW=329, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=339, PETRI_PLACES=128, PETRI_TRANSITIONS=122} [2023-08-29 18:49:47,207 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, 1 predicate places. [2023-08-29 18:49:47,207 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 122 transitions, 339 flow [2023-08-29 18:49:47,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 313.85714285714283) internal successors, (2197), 7 states have internal predecessors, (2197), 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) [2023-08-29 18:49:47,208 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:49:47,208 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:49:47,215 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-08-29 18:49:47,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-08-29 18:49:47,414 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-08-29 18:49:47,414 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:49:47,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1652931622, now seen corresponding path program 1 times [2023-08-29 18:49:47,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:49:47,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532757946] [2023-08-29 18:49:47,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:49:47,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:49:47,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:49:47,476 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-29 18:49:47,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:49:47,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532757946] [2023-08-29 18:49:47,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532757946] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:49:47,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:49:47,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:49:47,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120354337] [2023-08-29 18:49:47,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:49:47,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:49:47,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:49:47,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:49:47,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:49:47,495 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 316 out of 608 [2023-08-29 18:49:47,496 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 122 transitions, 339 flow. Second operand has 3 states, 3 states have (on average 320.3333333333333) internal successors, (961), 3 states have internal predecessors, (961), 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) [2023-08-29 18:49:47,496 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:49:47,497 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 316 of 608 [2023-08-29 18:49:47,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:49:47,787 INFO L130 PetriNetUnfolder]: 836/2563 cut-off events. [2023-08-29 18:49:47,787 INFO L131 PetriNetUnfolder]: For 369/369 co-relation queries the response was YES. [2023-08-29 18:49:47,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4440 conditions, 2563 events. 836/2563 cut-off events. For 369/369 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 18452 event pairs, 178 based on Foata normal form. 0/2277 useless extension candidates. Maximal degree in co-relation 4428. Up to 1160 conditions per place. [2023-08-29 18:49:47,811 INFO L137 encePairwiseOnDemand]: 602/608 looper letters, 65 selfloop transitions, 2 changer transitions 0/133 dead transitions. [2023-08-29 18:49:47,811 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 133 transitions, 506 flow [2023-08-29 18:49:47,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:49:47,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:49:47,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1008 transitions. [2023-08-29 18:49:47,814 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5526315789473685 [2023-08-29 18:49:47,814 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1008 transitions. [2023-08-29 18:49:47,814 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1008 transitions. [2023-08-29 18:49:47,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:49:47,815 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1008 transitions. [2023-08-29 18:49:47,817 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 336.0) internal successors, (1008), 3 states have internal predecessors, (1008), 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) [2023-08-29 18:49:47,820 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 608.0) internal successors, (2432), 4 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:49:47,821 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 608.0) internal successors, (2432), 4 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:49:47,821 INFO L175 Difference]: Start difference. First operand has 128 places, 122 transitions, 339 flow. Second operand 3 states and 1008 transitions. [2023-08-29 18:49:47,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 133 transitions, 506 flow [2023-08-29 18:49:47,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 133 transitions, 495 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 18:49:47,829 INFO L231 Difference]: Finished difference. Result has 122 places, 120 transitions, 336 flow [2023-08-29 18:49:47,829 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=608, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=336, PETRI_PLACES=122, PETRI_TRANSITIONS=120} [2023-08-29 18:49:47,832 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -5 predicate places. [2023-08-29 18:49:47,832 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 120 transitions, 336 flow [2023-08-29 18:49:47,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 320.3333333333333) internal successors, (961), 3 states have internal predecessors, (961), 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) [2023-08-29 18:49:47,832 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:49:47,833 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:49:47,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 18:49:47,833 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-08-29 18:49:47,833 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:49:47,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1111089327, now seen corresponding path program 1 times [2023-08-29 18:49:47,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:49:47,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941404970] [2023-08-29 18:49:47,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:49:47,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:49:47,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:49:47,977 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-29 18:49:47,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:49:47,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941404970] [2023-08-29 18:49:47,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941404970] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 18:49:47,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [855106607] [2023-08-29 18:49:47,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:49:47,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 18:49:47,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 18:49:47,981 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 18:49:48,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-29 18:49:48,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:49:48,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 8 conjunts are in the unsatisfiable core [2023-08-29 18:49:48,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 18:49:48,174 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-29 18:49:48,174 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 18:49:48,208 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-29 18:49:48,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [855106607] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 18:49:48,209 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 18:49:48,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-08-29 18:49:48,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458698511] [2023-08-29 18:49:48,209 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 18:49:48,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-29 18:49:48,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:49:48,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-29 18:49:48,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2023-08-29 18:49:48,405 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 317 out of 608 [2023-08-29 18:49:48,409 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 120 transitions, 336 flow. Second operand has 13 states, 13 states have (on average 318.53846153846155) internal successors, (4141), 13 states have internal predecessors, (4141), 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) [2023-08-29 18:49:48,409 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:49:48,409 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 317 of 608 [2023-08-29 18:49:48,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:49:48,634 INFO L130 PetriNetUnfolder]: 507/1691 cut-off events. [2023-08-29 18:49:48,634 INFO L131 PetriNetUnfolder]: For 138/161 co-relation queries the response was YES. [2023-08-29 18:49:48,640 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2819 conditions, 1691 events. 507/1691 cut-off events. For 138/161 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 11929 event pairs, 250 based on Foata normal form. 1/1443 useless extension candidates. Maximal degree in co-relation 2807. Up to 770 conditions per place. [2023-08-29 18:49:48,645 INFO L137 encePairwiseOnDemand]: 603/608 looper letters, 34 selfloop transitions, 12 changer transitions 0/122 dead transitions. [2023-08-29 18:49:48,645 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 122 transitions, 440 flow [2023-08-29 18:49:48,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-29 18:49:48,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-29 18:49:48,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2264 transitions. [2023-08-29 18:49:48,650 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5319548872180451 [2023-08-29 18:49:48,651 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2264 transitions. [2023-08-29 18:49:48,651 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2264 transitions. [2023-08-29 18:49:48,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:49:48,652 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2264 transitions. [2023-08-29 18:49:48,656 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 323.42857142857144) internal successors, (2264), 7 states have internal predecessors, (2264), 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) [2023-08-29 18:49:48,662 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 608.0) internal successors, (4864), 8 states have internal predecessors, (4864), 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) [2023-08-29 18:49:48,663 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 608.0) internal successors, (4864), 8 states have internal predecessors, (4864), 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) [2023-08-29 18:49:48,663 INFO L175 Difference]: Start difference. First operand has 122 places, 120 transitions, 336 flow. Second operand 7 states and 2264 transitions. [2023-08-29 18:49:48,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 122 transitions, 440 flow [2023-08-29 18:49:48,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 122 transitions, 440 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:49:48,666 INFO L231 Difference]: Finished difference. Result has 129 places, 122 transitions, 382 flow [2023-08-29 18:49:48,666 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=608, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=382, PETRI_PLACES=129, PETRI_TRANSITIONS=122} [2023-08-29 18:49:48,667 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, 2 predicate places. [2023-08-29 18:49:48,667 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 122 transitions, 382 flow [2023-08-29 18:49:48,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 318.53846153846155) internal successors, (4141), 13 states have internal predecessors, (4141), 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) [2023-08-29 18:49:48,668 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:49:48,669 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:49:48,674 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-29 18:49:48,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 18:49:48,874 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-08-29 18:49:48,875 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:49:48,875 INFO L85 PathProgramCache]: Analyzing trace with hash -2053023795, now seen corresponding path program 2 times [2023-08-29 18:49:48,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:49:48,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483357042] [2023-08-29 18:49:48,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:49:48,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:49:48,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:49:49,402 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-29 18:49:49,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:49:49,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483357042] [2023-08-29 18:49:49,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483357042] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:49:49,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:49:49,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 18:49:49,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240493027] [2023-08-29 18:49:49,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:49:49,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 18:49:49,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:49:49,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 18:49:49,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 18:49:49,870 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 608 [2023-08-29 18:49:49,872 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 122 transitions, 382 flow. Second operand has 6 states, 6 states have (on average 307.3333333333333) internal successors, (1844), 6 states have internal predecessors, (1844), 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) [2023-08-29 18:49:49,872 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:49:49,872 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 608 [2023-08-29 18:49:49,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:49:50,300 INFO L130 PetriNetUnfolder]: 1006/2787 cut-off events. [2023-08-29 18:49:50,300 INFO L131 PetriNetUnfolder]: For 171/171 co-relation queries the response was YES. [2023-08-29 18:49:50,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4868 conditions, 2787 events. 1006/2787 cut-off events. For 171/171 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 20313 event pairs, 185 based on Foata normal form. 0/2501 useless extension candidates. Maximal degree in co-relation 4854. Up to 784 conditions per place. [2023-08-29 18:49:50,317 INFO L137 encePairwiseOnDemand]: 601/608 looper letters, 117 selfloop transitions, 5 changer transitions 0/186 dead transitions. [2023-08-29 18:49:50,318 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 186 transitions, 767 flow [2023-08-29 18:49:50,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 18:49:50,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 18:49:50,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1941 transitions. [2023-08-29 18:49:50,323 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5320723684210527 [2023-08-29 18:49:50,323 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1941 transitions. [2023-08-29 18:49:50,323 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1941 transitions. [2023-08-29 18:49:50,324 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:49:50,324 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1941 transitions. [2023-08-29 18:49:50,328 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 323.5) internal successors, (1941), 6 states have internal predecessors, (1941), 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) [2023-08-29 18:49:50,333 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 608.0) internal successors, (4256), 7 states have internal predecessors, (4256), 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) [2023-08-29 18:49:50,334 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 608.0) internal successors, (4256), 7 states have internal predecessors, (4256), 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) [2023-08-29 18:49:50,334 INFO L175 Difference]: Start difference. First operand has 129 places, 122 transitions, 382 flow. Second operand 6 states and 1941 transitions. [2023-08-29 18:49:50,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 186 transitions, 767 flow [2023-08-29 18:49:50,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 186 transitions, 743 flow, removed 4 selfloop flow, removed 4 redundant places. [2023-08-29 18:49:50,337 INFO L231 Difference]: Finished difference. Result has 128 places, 120 transitions, 364 flow [2023-08-29 18:49:50,338 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=608, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=364, PETRI_PLACES=128, PETRI_TRANSITIONS=120} [2023-08-29 18:49:50,338 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, 1 predicate places. [2023-08-29 18:49:50,338 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 120 transitions, 364 flow [2023-08-29 18:49:50,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 307.3333333333333) internal successors, (1844), 6 states have internal predecessors, (1844), 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) [2023-08-29 18:49:50,339 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:49:50,339 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:49:50,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 18:49:50,339 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-08-29 18:49:50,340 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:49:50,340 INFO L85 PathProgramCache]: Analyzing trace with hash -219873082, now seen corresponding path program 1 times [2023-08-29 18:49:50,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:49:50,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688286] [2023-08-29 18:49:50,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:49:50,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:49:50,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:49:50,760 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-29 18:49:50,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:49:50,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688286] [2023-08-29 18:49:50,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688286] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:49:50,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:49:50,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 18:49:50,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909750403] [2023-08-29 18:49:50,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:49:50,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 18:49:50,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:49:50,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 18:49:50,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 18:49:51,142 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 608 [2023-08-29 18:49:51,143 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 120 transitions, 364 flow. Second operand has 6 states, 6 states have (on average 307.6666666666667) internal successors, (1846), 6 states have internal predecessors, (1846), 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) [2023-08-29 18:49:51,143 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:49:51,143 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 608 [2023-08-29 18:49:51,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:49:51,504 INFO L130 PetriNetUnfolder]: 879/2205 cut-off events. [2023-08-29 18:49:51,504 INFO L131 PetriNetUnfolder]: For 282/333 co-relation queries the response was YES. [2023-08-29 18:49:51,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4170 conditions, 2205 events. 879/2205 cut-off events. For 282/333 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 14846 event pairs, 155 based on Foata normal form. 0/2029 useless extension candidates. Maximal degree in co-relation 4155. Up to 714 conditions per place. [2023-08-29 18:49:51,516 INFO L137 encePairwiseOnDemand]: 601/608 looper letters, 101 selfloop transitions, 5 changer transitions 0/170 dead transitions. [2023-08-29 18:49:51,516 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 170 transitions, 716 flow [2023-08-29 18:49:51,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 18:49:51,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 18:49:51,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1921 transitions. [2023-08-29 18:49:51,522 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5265899122807017 [2023-08-29 18:49:51,522 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1921 transitions. [2023-08-29 18:49:51,522 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1921 transitions. [2023-08-29 18:49:51,523 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:49:51,523 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1921 transitions. [2023-08-29 18:49:51,526 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 320.1666666666667) internal successors, (1921), 6 states have internal predecessors, (1921), 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) [2023-08-29 18:49:51,531 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 608.0) internal successors, (4256), 7 states have internal predecessors, (4256), 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) [2023-08-29 18:49:51,532 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 608.0) internal successors, (4256), 7 states have internal predecessors, (4256), 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) [2023-08-29 18:49:51,532 INFO L175 Difference]: Start difference. First operand has 128 places, 120 transitions, 364 flow. Second operand 6 states and 1921 transitions. [2023-08-29 18:49:51,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 170 transitions, 716 flow [2023-08-29 18:49:51,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 170 transitions, 698 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 18:49:51,537 INFO L231 Difference]: Finished difference. Result has 126 places, 118 transitions, 360 flow [2023-08-29 18:49:51,537 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=608, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=360, PETRI_PLACES=126, PETRI_TRANSITIONS=118} [2023-08-29 18:49:51,538 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -1 predicate places. [2023-08-29 18:49:51,538 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 118 transitions, 360 flow [2023-08-29 18:49:51,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 307.6666666666667) internal successors, (1846), 6 states have internal predecessors, (1846), 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) [2023-08-29 18:49:51,539 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:49:51,539 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:49:51,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 18:49:51,539 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-08-29 18:49:51,539 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:49:51,540 INFO L85 PathProgramCache]: Analyzing trace with hash 884160698, now seen corresponding path program 1 times [2023-08-29 18:49:51,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:49:51,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258488296] [2023-08-29 18:49:51,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:49:51,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:49:51,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:49:51,987 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-29 18:49:51,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:49:51,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258488296] [2023-08-29 18:49:51,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258488296] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:49:51,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:49:51,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 18:49:51,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343533056] [2023-08-29 18:49:51,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:49:51,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 18:49:51,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:49:51,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 18:49:51,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 18:49:52,438 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 312 out of 608 [2023-08-29 18:49:52,439 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 118 transitions, 360 flow. Second operand has 6 states, 6 states have (on average 315.0) internal successors, (1890), 6 states have internal predecessors, (1890), 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) [2023-08-29 18:49:52,439 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:49:52,439 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 312 of 608 [2023-08-29 18:49:52,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:49:52,731 INFO L130 PetriNetUnfolder]: 595/1732 cut-off events. [2023-08-29 18:49:52,732 INFO L131 PetriNetUnfolder]: For 196/230 co-relation queries the response was YES. [2023-08-29 18:49:52,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3188 conditions, 1732 events. 595/1732 cut-off events. For 196/230 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 11904 event pairs, 253 based on Foata normal form. 0/1560 useless extension candidates. Maximal degree in co-relation 3173. Up to 771 conditions per place. [2023-08-29 18:49:52,742 INFO L137 encePairwiseOnDemand]: 603/608 looper letters, 90 selfloop transitions, 4 changer transitions 8/169 dead transitions. [2023-08-29 18:49:52,743 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 169 transitions, 690 flow [2023-08-29 18:49:52,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 18:49:52,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 18:49:52,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1962 transitions. [2023-08-29 18:49:52,748 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.537828947368421 [2023-08-29 18:49:52,748 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1962 transitions. [2023-08-29 18:49:52,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1962 transitions. [2023-08-29 18:49:52,749 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:49:52,749 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1962 transitions. [2023-08-29 18:49:52,753 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 327.0) internal successors, (1962), 6 states have internal predecessors, (1962), 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) [2023-08-29 18:49:52,757 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 608.0) internal successors, (4256), 7 states have internal predecessors, (4256), 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) [2023-08-29 18:49:52,758 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 608.0) internal successors, (4256), 7 states have internal predecessors, (4256), 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) [2023-08-29 18:49:52,758 INFO L175 Difference]: Start difference. First operand has 126 places, 118 transitions, 360 flow. Second operand 6 states and 1962 transitions. [2023-08-29 18:49:52,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 169 transitions, 690 flow [2023-08-29 18:49:52,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 169 transitions, 664 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 18:49:52,762 INFO L231 Difference]: Finished difference. Result has 125 places, 117 transitions, 356 flow [2023-08-29 18:49:52,762 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=608, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=356, PETRI_PLACES=125, PETRI_TRANSITIONS=117} [2023-08-29 18:49:52,763 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -2 predicate places. [2023-08-29 18:49:52,763 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 117 transitions, 356 flow [2023-08-29 18:49:52,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 315.0) internal successors, (1890), 6 states have internal predecessors, (1890), 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) [2023-08-29 18:49:52,763 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:49:52,763 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:49:52,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-29 18:49:52,764 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-08-29 18:49:52,764 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:49:52,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1816870821, now seen corresponding path program 1 times [2023-08-29 18:49:52,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:49:52,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165114110] [2023-08-29 18:49:52,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:49:52,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:49:52,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:49:53,170 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-29 18:49:53,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:49:53,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165114110] [2023-08-29 18:49:53,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165114110] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:49:53,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:49:53,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 18:49:53,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212019562] [2023-08-29 18:49:53,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:49:53,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 18:49:53,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:49:53,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 18:49:53,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 18:49:53,635 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 608 [2023-08-29 18:49:53,636 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 117 transitions, 356 flow. Second operand has 6 states, 6 states have (on average 307.8333333333333) internal successors, (1847), 6 states have internal predecessors, (1847), 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) [2023-08-29 18:49:53,636 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:49:53,636 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 608 [2023-08-29 18:49:53,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:49:53,910 INFO L130 PetriNetUnfolder]: 722/1817 cut-off events. [2023-08-29 18:49:53,910 INFO L131 PetriNetUnfolder]: For 206/240 co-relation queries the response was YES. [2023-08-29 18:49:53,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3409 conditions, 1817 events. 722/1817 cut-off events. For 206/240 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 12035 event pairs, 165 based on Foata normal form. 0/1632 useless extension candidates. Maximal degree in co-relation 3394. Up to 512 conditions per place. [2023-08-29 18:49:53,922 INFO L137 encePairwiseOnDemand]: 601/608 looper letters, 96 selfloop transitions, 5 changer transitions 0/163 dead transitions. [2023-08-29 18:49:53,922 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 163 transitions, 678 flow [2023-08-29 18:49:53,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 18:49:53,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 18:49:53,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1920 transitions. [2023-08-29 18:49:53,927 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5263157894736842 [2023-08-29 18:49:53,927 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1920 transitions. [2023-08-29 18:49:53,927 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1920 transitions. [2023-08-29 18:49:53,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:49:53,944 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1920 transitions. [2023-08-29 18:49:53,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 320.0) internal successors, (1920), 6 states have internal predecessors, (1920), 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) [2023-08-29 18:49:53,951 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 608.0) internal successors, (4256), 7 states have internal predecessors, (4256), 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) [2023-08-29 18:49:53,952 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 608.0) internal successors, (4256), 7 states have internal predecessors, (4256), 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) [2023-08-29 18:49:53,952 INFO L175 Difference]: Start difference. First operand has 125 places, 117 transitions, 356 flow. Second operand 6 states and 1920 transitions. [2023-08-29 18:49:53,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 163 transitions, 678 flow [2023-08-29 18:49:53,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 163 transitions, 663 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-29 18:49:53,956 INFO L231 Difference]: Finished difference. Result has 124 places, 115 transitions, 355 flow [2023-08-29 18:49:53,957 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=608, PETRI_DIFFERENCE_MINUEND_FLOW=345, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=355, PETRI_PLACES=124, PETRI_TRANSITIONS=115} [2023-08-29 18:49:53,957 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -3 predicate places. [2023-08-29 18:49:53,957 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 115 transitions, 355 flow [2023-08-29 18:49:53,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 307.8333333333333) internal successors, (1847), 6 states have internal predecessors, (1847), 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) [2023-08-29 18:49:53,958 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:49:53,958 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:49:53,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-29 18:49:53,959 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-08-29 18:49:53,959 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:49:53,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1991814029, now seen corresponding path program 1 times [2023-08-29 18:49:53,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:49:53,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272516091] [2023-08-29 18:49:53,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:49:53,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:49:54,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:49:54,338 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-29 18:49:54,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:49:54,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272516091] [2023-08-29 18:49:54,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272516091] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:49:54,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:49:54,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 18:49:54,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213908145] [2023-08-29 18:49:54,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:49:54,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 18:49:54,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:49:54,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 18:49:54,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 18:49:54,772 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 608 [2023-08-29 18:49:54,773 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 115 transitions, 355 flow. Second operand has 6 states, 6 states have (on average 307.3333333333333) internal successors, (1844), 6 states have internal predecessors, (1844), 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) [2023-08-29 18:49:54,773 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:49:54,773 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 608 [2023-08-29 18:49:54,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:49:55,150 INFO L130 PetriNetUnfolder]: 916/2424 cut-off events. [2023-08-29 18:49:55,151 INFO L131 PetriNetUnfolder]: For 238/238 co-relation queries the response was YES. [2023-08-29 18:49:55,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4467 conditions, 2424 events. 916/2424 cut-off events. For 238/238 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 16749 event pairs, 196 based on Foata normal form. 0/2239 useless extension candidates. Maximal degree in co-relation 4452. Up to 701 conditions per place. [2023-08-29 18:49:55,161 INFO L137 encePairwiseOnDemand]: 601/608 looper letters, 0 selfloop transitions, 0 changer transitions 179/179 dead transitions. [2023-08-29 18:49:55,161 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 179 transitions, 754 flow [2023-08-29 18:49:55,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 18:49:55,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 18:49:55,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1940 transitions. [2023-08-29 18:49:55,166 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5317982456140351 [2023-08-29 18:49:55,166 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1940 transitions. [2023-08-29 18:49:55,166 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1940 transitions. [2023-08-29 18:49:55,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:49:55,168 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1940 transitions. [2023-08-29 18:49:55,171 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 323.3333333333333) internal successors, (1940), 6 states have internal predecessors, (1940), 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) [2023-08-29 18:49:55,175 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 608.0) internal successors, (4256), 7 states have internal predecessors, (4256), 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) [2023-08-29 18:49:55,176 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 608.0) internal successors, (4256), 7 states have internal predecessors, (4256), 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) [2023-08-29 18:49:55,176 INFO L175 Difference]: Start difference. First operand has 124 places, 115 transitions, 355 flow. Second operand 6 states and 1940 transitions. [2023-08-29 18:49:55,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 179 transitions, 754 flow [2023-08-29 18:49:55,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 179 transitions, 728 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 18:49:55,180 INFO L231 Difference]: Finished difference. Result has 122 places, 0 transitions, 0 flow [2023-08-29 18:49:55,180 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=608, PETRI_DIFFERENCE_MINUEND_FLOW=341, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=122, PETRI_TRANSITIONS=0} [2023-08-29 18:49:55,180 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -5 predicate places. [2023-08-29 18:49:55,181 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 0 transitions, 0 flow [2023-08-29 18:49:55,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 307.3333333333333) internal successors, (1844), 6 states have internal predecessors, (1844), 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) [2023-08-29 18:49:55,183 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (55 of 56 remaining) [2023-08-29 18:49:55,184 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (54 of 56 remaining) [2023-08-29 18:49:55,184 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (53 of 56 remaining) [2023-08-29 18:49:55,184 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (52 of 56 remaining) [2023-08-29 18:49:55,184 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (51 of 56 remaining) [2023-08-29 18:49:55,184 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (50 of 56 remaining) [2023-08-29 18:49:55,184 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (49 of 56 remaining) [2023-08-29 18:49:55,184 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (48 of 56 remaining) [2023-08-29 18:49:55,185 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (47 of 56 remaining) [2023-08-29 18:49:55,185 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (46 of 56 remaining) [2023-08-29 18:49:55,185 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (45 of 56 remaining) [2023-08-29 18:49:55,185 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (44 of 56 remaining) [2023-08-29 18:49:55,185 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (43 of 56 remaining) [2023-08-29 18:49:55,186 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (42 of 56 remaining) [2023-08-29 18:49:55,186 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (41 of 56 remaining) [2023-08-29 18:49:55,186 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (40 of 56 remaining) [2023-08-29 18:49:55,186 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (39 of 56 remaining) [2023-08-29 18:49:55,186 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (38 of 56 remaining) [2023-08-29 18:49:55,186 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (37 of 56 remaining) [2023-08-29 18:49:55,187 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (36 of 56 remaining) [2023-08-29 18:49:55,187 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (35 of 56 remaining) [2023-08-29 18:49:55,187 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (34 of 56 remaining) [2023-08-29 18:49:55,187 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (33 of 56 remaining) [2023-08-29 18:49:55,187 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (32 of 56 remaining) [2023-08-29 18:49:55,187 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (31 of 56 remaining) [2023-08-29 18:49:55,187 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (30 of 56 remaining) [2023-08-29 18:49:55,188 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (29 of 56 remaining) [2023-08-29 18:49:55,188 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (28 of 56 remaining) [2023-08-29 18:49:55,188 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (27 of 56 remaining) [2023-08-29 18:49:55,188 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (26 of 56 remaining) [2023-08-29 18:49:55,188 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (25 of 56 remaining) [2023-08-29 18:49:55,188 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (24 of 56 remaining) [2023-08-29 18:49:55,188 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 56 remaining) [2023-08-29 18:49:55,188 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 56 remaining) [2023-08-29 18:49:55,189 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (21 of 56 remaining) [2023-08-29 18:49:55,189 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (20 of 56 remaining) [2023-08-29 18:49:55,189 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (19 of 56 remaining) [2023-08-29 18:49:55,189 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (18 of 56 remaining) [2023-08-29 18:49:55,189 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (17 of 56 remaining) [2023-08-29 18:49:55,189 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (16 of 56 remaining) [2023-08-29 18:49:55,189 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (15 of 56 remaining) [2023-08-29 18:49:55,190 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (14 of 56 remaining) [2023-08-29 18:49:55,190 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (13 of 56 remaining) [2023-08-29 18:49:55,190 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (12 of 56 remaining) [2023-08-29 18:49:55,190 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (11 of 56 remaining) [2023-08-29 18:49:55,190 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (10 of 56 remaining) [2023-08-29 18:49:55,190 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (9 of 56 remaining) [2023-08-29 18:49:55,190 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (8 of 56 remaining) [2023-08-29 18:49:55,191 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (7 of 56 remaining) [2023-08-29 18:49:55,191 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (6 of 56 remaining) [2023-08-29 18:49:55,191 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (5 of 56 remaining) [2023-08-29 18:49:55,191 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (4 of 56 remaining) [2023-08-29 18:49:55,192 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (3 of 56 remaining) [2023-08-29 18:49:55,192 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (2 of 56 remaining) [2023-08-29 18:49:55,192 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (1 of 56 remaining) [2023-08-29 18:49:55,192 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (0 of 56 remaining) [2023-08-29 18:49:55,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-29 18:49:55,193 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:49:55,198 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 18:49:55,198 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 18:49:55,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 06:49:55 BasicIcfg [2023-08-29 18:49:55,201 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 18:49:55,202 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 18:49:55,202 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 18:49:55,202 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 18:49:55,202 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:49:36" (3/4) ... [2023-08-29 18:49:55,205 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-29 18:49:55,209 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-08-29 18:49:55,209 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-08-29 18:49:55,215 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2023-08-29 18:49:55,216 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-29 18:49:55,216 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-29 18:49:55,216 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-29 18:49:55,264 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-29 18:49:55,264 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 18:49:55,265 INFO L158 Benchmark]: Toolchain (without parser) took 20125.76ms. Allocated memory was 83.9MB in the beginning and 413.1MB in the end (delta: 329.3MB). Free memory was 58.5MB in the beginning and 220.4MB in the end (delta: -162.0MB). Peak memory consumption was 166.0MB. Max. memory is 16.1GB. [2023-08-29 18:49:55,265 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 60.8MB. Free memory is still 38.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 18:49:55,265 INFO L158 Benchmark]: CACSL2BoogieTranslator took 330.95ms. Allocated memory is still 83.9MB. Free memory was 58.3MB in the beginning and 46.0MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-29 18:49:55,266 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.12ms. Allocated memory is still 83.9MB. Free memory was 45.7MB in the beginning and 42.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 18:49:55,266 INFO L158 Benchmark]: Boogie Preprocessor took 63.31ms. Allocated memory is still 83.9MB. Free memory was 42.6MB in the beginning and 61.2MB in the end (delta: -18.6MB). Peak memory consumption was 3.6MB. Max. memory is 16.1GB. [2023-08-29 18:49:55,266 INFO L158 Benchmark]: RCFGBuilder took 775.64ms. Allocated memory is still 83.9MB. Free memory was 61.2MB in the beginning and 57.7MB in the end (delta: 3.5MB). Peak memory consumption was 29.6MB. Max. memory is 16.1GB. [2023-08-29 18:49:55,267 INFO L158 Benchmark]: TraceAbstraction took 18812.13ms. Allocated memory was 83.9MB in the beginning and 413.1MB in the end (delta: 329.3MB). Free memory was 57.0MB in the beginning and 224.6MB in the end (delta: -167.6MB). Peak memory consumption was 269.1MB. Max. memory is 16.1GB. [2023-08-29 18:49:55,267 INFO L158 Benchmark]: Witness Printer took 62.43ms. Allocated memory is still 413.1MB. Free memory was 224.6MB in the beginning and 220.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-29 18:49:55,269 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 60.8MB. Free memory is still 38.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 330.95ms. Allocated memory is still 83.9MB. Free memory was 58.3MB in the beginning and 46.0MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.12ms. Allocated memory is still 83.9MB. Free memory was 45.7MB in the beginning and 42.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.31ms. Allocated memory is still 83.9MB. Free memory was 42.6MB in the beginning and 61.2MB in the end (delta: -18.6MB). Peak memory consumption was 3.6MB. Max. memory is 16.1GB. * RCFGBuilder took 775.64ms. Allocated memory is still 83.9MB. Free memory was 61.2MB in the beginning and 57.7MB in the end (delta: 3.5MB). Peak memory consumption was 29.6MB. Max. memory is 16.1GB. * TraceAbstraction took 18812.13ms. Allocated memory was 83.9MB in the beginning and 413.1MB in the end (delta: 329.3MB). Free memory was 57.0MB in the beginning and 224.6MB in the end (delta: -167.6MB). Peak memory consumption was 269.1MB. Max. memory is 16.1GB. * Witness Printer took 62.43ms. Allocated memory is still 413.1MB. Free memory was 224.6MB in the beginning and 220.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.0s, 317 PlacesBefore, 127 PlacesAfterwards, 328 TransitionsBefore, 131 TransitionsAfterwards, 18468 CoEnabledTransitionPairs, 7 FixpointIterations, 134 TrivialSequentialCompositions, 79 ConcurrentSequentialCompositions, 23 TrivialYvCompositions, 20 ConcurrentYvCompositions, 7 ChoiceCompositions, 263 TotalNumberOfCompositions, 120361 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 25295, independent: 23730, independent conditional: 0, independent unconditional: 23730, dependent: 1565, dependent conditional: 0, dependent unconditional: 1565, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 8575, independent: 8347, independent conditional: 0, independent unconditional: 8347, dependent: 228, dependent conditional: 0, dependent unconditional: 228, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 25295, independent: 15383, independent conditional: 0, independent unconditional: 15383, dependent: 1337, dependent conditional: 0, dependent unconditional: 1337, unknown: 8575, unknown conditional: 0, unknown unconditional: 8575] , Statistics on independence cache: Total cache size (in pairs): 1484, Positive cache size: 1377, Positive conditional cache size: 0, Positive unconditional cache size: 1377, Negative cache size: 107, Negative conditional cache size: 0, Negative unconditional cache size: 107, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 104]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 82]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 104]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 83]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 89]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 90]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 483 locations, 56 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 18.6s, OverallIterations: 14, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 7.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2645 SdHoareTripleChecker+Valid, 4.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1650 mSDsluCounter, 131 SdHoareTripleChecker+Invalid, 3.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 59 mSDsCounter, 1074 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5571 IncrementalHoareTripleChecker+Invalid, 6645 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1074 mSolverCounterUnsat, 72 mSDtfsCounter, 5571 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 143 GetRequests, 87 SyntacticMatches, 4 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=382occurred in iteration=9, InterpolantAutomatonStates: 67, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 322 NumberOfCodeBlocks, 314 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 340 ConstructedInterpolants, 0 QuantifiedInterpolants, 1127 SizeOfPredicates, 2 NumberOfNonLiveVariables, 701 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 19 InterpolantComputations, 12 PerfectInterpolantSequences, 239/282 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 32 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-29 18:49:55,300 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE