./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/06-symbeq_05-funloop_hard2.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --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/goblint-regression/06-symbeq_05-funloop_hard2.i -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 9e83a031749850377e0f1ecd2c361048b8f87f697f146600048034d31c93bd9a --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 02:00:31,522 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 02:00:31,523 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 02:00:31,559 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 02:00:31,559 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 02:00:31,563 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 02:00:31,565 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 02:00:31,568 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 02:00:31,570 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 02:00:31,577 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 02:00:31,578 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 02:00:31,581 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 02:00:31,581 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 02:00:31,584 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 02:00:31,586 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 02:00:31,593 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 02:00:31,594 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 02:00:31,596 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 02:00:31,598 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 02:00:31,603 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 02:00:31,605 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 02:00:31,606 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 02:00:31,607 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 02:00:31,608 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 02:00:31,612 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 02:00:31,613 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 02:00:31,613 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 02:00:31,615 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 02:00:31,615 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 02:00:31,616 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 02:00:31,617 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 02:00:31,619 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 02:00:31,621 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 02:00:31,622 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 02:00:31,622 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 02:00:31,623 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 02:00:31,623 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 02:00:31,623 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 02:00:31,624 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 02:00:31,624 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 02:00:31,625 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 02:00:31,627 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 02:00:31,669 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 02:00:31,669 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 02:00:31,670 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 02:00:31,671 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 02:00:31,672 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 02:00:31,672 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 02:00:31,673 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 02:00:31,673 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 02:00:31,673 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 02:00:31,673 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 02:00:31,674 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 02:00:31,674 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 02:00:31,674 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 02:00:31,675 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 02:00:31,675 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 02:00:31,675 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 02:00:31,675 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 02:00:31,675 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 02:00:31,676 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 02:00:31,676 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 02:00:31,676 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 02:00:31,676 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 02:00:31,676 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 02:00:31,677 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 02:00:31,677 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 02:00:31,677 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 02:00:31,677 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 02:00:31,677 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 02:00:31,678 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 02:00:31,678 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 02:00:31,678 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 02:00:31,678 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 02:00:31,679 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 02:00:31,679 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 02:00:31,679 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 02:00:31,679 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 02:00:31,679 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 02:00:31,679 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e83a031749850377e0f1ecd2c361048b8f87f697f146600048034d31c93bd9a Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 02:00:31,998 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 02:00:32,020 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 02:00:32,022 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 02:00:32,023 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 02:00:32,023 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 02:00:32,025 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/06-symbeq_05-funloop_hard2.i [2023-08-29 02:00:33,242 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 02:00:33,503 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 02:00:33,508 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/06-symbeq_05-funloop_hard2.i [2023-08-29 02:00:33,535 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46384e297/a14368dc4184428da7a01ae456fc6863/FLAGc8fc4e58a [2023-08-29 02:00:33,552 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46384e297/a14368dc4184428da7a01ae456fc6863 [2023-08-29 02:00:33,554 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 02:00:33,555 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 02:00:33,556 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 02:00:33,556 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 02:00:33,559 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 02:00:33,560 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 02:00:33" (1/1) ... [2023-08-29 02:00:33,561 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@345a149a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:00:33, skipping insertion in model container [2023-08-29 02:00:33,561 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 02:00:33" (1/1) ... [2023-08-29 02:00:33,567 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 02:00:33,602 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 02:00:33,982 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 02:00:34,001 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 02:00:34,054 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 02:00:34,112 INFO L208 MainTranslator]: Completed translation [2023-08-29 02:00:34,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:00:34 WrapperNode [2023-08-29 02:00:34,113 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 02:00:34,114 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 02:00:34,114 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 02:00:34,114 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 02:00:34,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:00:34" (1/1) ... [2023-08-29 02:00:34,150 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:00:34" (1/1) ... [2023-08-29 02:00:34,174 INFO L138 Inliner]: procedures = 262, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 115 [2023-08-29 02:00:34,174 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 02:00:34,175 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 02:00:34,175 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 02:00:34,175 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 02:00:34,183 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:00:34" (1/1) ... [2023-08-29 02:00:34,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:00:34" (1/1) ... [2023-08-29 02:00:34,199 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:00:34" (1/1) ... [2023-08-29 02:00:34,201 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:00:34" (1/1) ... [2023-08-29 02:00:34,223 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:00:34" (1/1) ... [2023-08-29 02:00:34,230 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:00:34" (1/1) ... [2023-08-29 02:00:34,234 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:00:34" (1/1) ... [2023-08-29 02:00:34,242 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:00:34" (1/1) ... [2023-08-29 02:00:34,244 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 02:00:34,245 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 02:00:34,246 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 02:00:34,250 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 02:00:34,251 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:00:34" (1/1) ... [2023-08-29 02:00:34,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 02:00:34,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:00:34,286 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 02:00:34,312 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 02:00:34,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 02:00:34,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 02:00:34,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 02:00:34,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 02:00:34,328 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 02:00:34,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 02:00:34,328 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 02:00:34,328 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 02:00:34,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 02:00:34,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 02:00:34,330 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 02:00:34,521 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 02:00:34,523 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 02:00:34,845 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 02:00:34,852 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 02:00:34,852 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-29 02:00:34,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:00:34 BoogieIcfgContainer [2023-08-29 02:00:34,854 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 02:00:34,856 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 02:00:34,856 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 02:00:34,858 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 02:00:34,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 02:00:33" (1/3) ... [2023-08-29 02:00:34,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cf393f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 02:00:34, skipping insertion in model container [2023-08-29 02:00:34,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:00:34" (2/3) ... [2023-08-29 02:00:34,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cf393f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 02:00:34, skipping insertion in model container [2023-08-29 02:00:34,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:00:34" (3/3) ... [2023-08-29 02:00:34,871 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_05-funloop_hard2.i [2023-08-29 02:00:34,878 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 02:00:34,887 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 02:00:34,887 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-29 02:00:34,887 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 02:00:34,988 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 02:00:35,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 120 places, 122 transitions, 249 flow [2023-08-29 02:00:35,101 INFO L130 PetriNetUnfolder]: 6/121 cut-off events. [2023-08-29 02:00:35,101 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:00:35,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 121 events. 6/121 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 223 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 99. Up to 2 conditions per place. [2023-08-29 02:00:35,107 INFO L82 GeneralOperation]: Start removeDead. Operand has 120 places, 122 transitions, 249 flow [2023-08-29 02:00:35,111 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 119 places, 121 transitions, 245 flow [2023-08-29 02:00:35,116 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 02:00:35,133 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 119 places, 121 transitions, 245 flow [2023-08-29 02:00:35,137 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 119 places, 121 transitions, 245 flow [2023-08-29 02:00:35,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 119 places, 121 transitions, 245 flow [2023-08-29 02:00:35,181 INFO L130 PetriNetUnfolder]: 6/121 cut-off events. [2023-08-29 02:00:35,181 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:00:35,184 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 121 events. 6/121 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 223 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 99. Up to 2 conditions per place. [2023-08-29 02:00:35,187 INFO L119 LiptonReduction]: Number of co-enabled transitions 4588 [2023-08-29 02:00:36,788 INFO L134 LiptonReduction]: Checked pairs total: 14013 [2023-08-29 02:00:36,788 INFO L136 LiptonReduction]: Total number of compositions: 69 [2023-08-29 02:00:36,807 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 02:00:36,816 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;@2ab941fa, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 02:00:36,816 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-08-29 02:00:36,822 INFO L130 PetriNetUnfolder]: 1/25 cut-off events. [2023-08-29 02:00:36,822 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:00:36,823 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:00:36,823 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:00:36,828 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-29 02:00:36,832 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:00:36,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1699604442, now seen corresponding path program 1 times [2023-08-29 02:00:36,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:00:36,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595524744] [2023-08-29 02:00:36,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:00:36,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:00:36,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:00:37,071 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 02:00:37,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:00:37,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595524744] [2023-08-29 02:00:37,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595524744] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:00:37,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:00:37,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 02:00:37,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670151670] [2023-08-29 02:00:37,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:00:37,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 02:00:37,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:00:37,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 02:00:37,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 02:00:37,126 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 191 [2023-08-29 02:00:37,129 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 55 transitions, 113 flow. Second operand has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 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 02:00:37,129 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:00:37,129 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 191 [2023-08-29 02:00:37,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:00:37,234 INFO L130 PetriNetUnfolder]: 106/409 cut-off events. [2023-08-29 02:00:37,235 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:00:37,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 627 conditions, 409 events. 106/409 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2223 event pairs, 84 based on Foata normal form. 0/376 useless extension candidates. Maximal degree in co-relation 612. Up to 213 conditions per place. [2023-08-29 02:00:37,239 INFO L137 encePairwiseOnDemand]: 188/191 looper letters, 24 selfloop transitions, 2 changer transitions 0/56 dead transitions. [2023-08-29 02:00:37,239 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 56 transitions, 167 flow [2023-08-29 02:00:37,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 02:00:37,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 02:00:37,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 369 transitions. [2023-08-29 02:00:37,252 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.643979057591623 [2023-08-29 02:00:37,253 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 369 transitions. [2023-08-29 02:00:37,253 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 369 transitions. [2023-08-29 02:00:37,255 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:00:37,257 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 369 transitions. [2023-08-29 02:00:37,260 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 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 02:00:37,265 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 191.0) internal successors, (764), 4 states have internal predecessors, (764), 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 02:00:37,265 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 191.0) internal successors, (764), 4 states have internal predecessors, (764), 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 02:00:37,267 INFO L175 Difference]: Start difference. First operand has 56 places, 55 transitions, 113 flow. Second operand 3 states and 369 transitions. [2023-08-29 02:00:37,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 56 transitions, 167 flow [2023-08-29 02:00:37,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 56 transitions, 166 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 02:00:37,271 INFO L231 Difference]: Finished difference. Result has 58 places, 56 transitions, 124 flow [2023-08-29 02:00:37,272 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=124, PETRI_PLACES=58, PETRI_TRANSITIONS=56} [2023-08-29 02:00:37,275 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 2 predicate places. [2023-08-29 02:00:37,276 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 56 transitions, 124 flow [2023-08-29 02:00:37,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 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 02:00:37,276 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:00:37,276 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:00:37,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 02:00:37,277 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-29 02:00:37,277 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:00:37,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1558654883, now seen corresponding path program 1 times [2023-08-29 02:00:37,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:00:37,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633678986] [2023-08-29 02:00:37,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:00:37,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:00:37,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:00:37,361 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:00:37,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:00:37,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633678986] [2023-08-29 02:00:37,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633678986] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 02:00:37,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631880425] [2023-08-29 02:00:37,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:00:37,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:00:37,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:00:37,365 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 02:00:37,390 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 02:00:37,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:00:37,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-29 02:00:37,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 02:00:37,480 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:00:37,480 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 02:00:37,496 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:00:37,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [631880425] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 02:00:37,497 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 02:00:37,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-08-29 02:00:37,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487626897] [2023-08-29 02:00:37,498 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 02:00:37,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-29 02:00:37,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:00:37,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-29 02:00:37,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-29 02:00:37,519 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 191 [2023-08-29 02:00:37,520 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 56 transitions, 124 flow. Second operand has 7 states, 7 states have (on average 114.71428571428571) internal successors, (803), 7 states have internal predecessors, (803), 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 02:00:37,520 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:00:37,520 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 191 [2023-08-29 02:00:37,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:00:37,677 INFO L130 PetriNetUnfolder]: 106/412 cut-off events. [2023-08-29 02:00:37,680 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:00:37,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 642 conditions, 412 events. 106/412 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2237 event pairs, 84 based on Foata normal form. 0/379 useless extension candidates. Maximal degree in co-relation 631. Up to 213 conditions per place. [2023-08-29 02:00:37,684 INFO L137 encePairwiseOnDemand]: 188/191 looper letters, 24 selfloop transitions, 5 changer transitions 0/59 dead transitions. [2023-08-29 02:00:37,685 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 59 transitions, 194 flow [2023-08-29 02:00:37,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:00:37,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:00:37,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 710 transitions. [2023-08-29 02:00:37,689 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6195462478184991 [2023-08-29 02:00:37,689 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 710 transitions. [2023-08-29 02:00:37,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 710 transitions. [2023-08-29 02:00:37,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:00:37,690 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 710 transitions. [2023-08-29 02:00:37,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 118.33333333333333) internal successors, (710), 6 states have internal predecessors, (710), 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 02:00:37,695 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 191.0) internal successors, (1337), 7 states have internal predecessors, (1337), 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 02:00:37,696 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 191.0) internal successors, (1337), 7 states have internal predecessors, (1337), 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 02:00:37,696 INFO L175 Difference]: Start difference. First operand has 58 places, 56 transitions, 124 flow. Second operand 6 states and 710 transitions. [2023-08-29 02:00:37,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 59 transitions, 194 flow [2023-08-29 02:00:37,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 59 transitions, 190 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-29 02:00:37,698 INFO L231 Difference]: Finished difference. Result has 65 places, 59 transitions, 156 flow [2023-08-29 02:00:37,698 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=156, PETRI_PLACES=65, PETRI_TRANSITIONS=59} [2023-08-29 02:00:37,699 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 9 predicate places. [2023-08-29 02:00:37,699 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 59 transitions, 156 flow [2023-08-29 02:00:37,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 114.71428571428571) internal successors, (803), 7 states have internal predecessors, (803), 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 02:00:37,700 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:00:37,700 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:00:37,709 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 02:00:37,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:00:37,906 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-29 02:00:37,907 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:00:37,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1832123143, now seen corresponding path program 2 times [2023-08-29 02:00:37,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:00:37,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917828297] [2023-08-29 02:00:37,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:00:37,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:00:37,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:00:38,032 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:00:38,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:00:38,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917828297] [2023-08-29 02:00:38,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917828297] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 02:00:38,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1524231478] [2023-08-29 02:00:38,033 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-29 02:00:38,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:00:38,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:00:38,037 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 02:00:38,040 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 02:00:38,119 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-29 02:00:38,119 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-29 02:00:38,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 25 conjunts are in the unsatisfiable core [2023-08-29 02:00:38,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 02:00:38,188 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 02:00:38,211 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 02:00:38,241 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-29 02:00:38,241 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 02:00:38,276 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-29 02:00:38,277 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 02:00:38,303 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-29 02:00:38,304 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 02:00:38,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1524231478] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:00:38,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-29 02:00:38,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 13 [2023-08-29 02:00:38,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630781273] [2023-08-29 02:00:38,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:00:38,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 02:00:38,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:00:38,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 02:00:38,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2023-08-29 02:00:38,650 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 191 [2023-08-29 02:00:38,651 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 59 transitions, 156 flow. Second operand has 9 states, 9 states have (on average 92.33333333333333) internal successors, (831), 9 states have internal predecessors, (831), 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 02:00:38,651 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:00:38,651 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 191 [2023-08-29 02:00:38,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:00:39,235 INFO L130 PetriNetUnfolder]: 691/1606 cut-off events. [2023-08-29 02:00:39,236 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 02:00:39,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3019 conditions, 1606 events. 691/1606 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 8354 event pairs, 293 based on Foata normal form. 0/1496 useless extension candidates. Maximal degree in co-relation 2986. Up to 632 conditions per place. [2023-08-29 02:00:39,245 INFO L137 encePairwiseOnDemand]: 175/191 looper letters, 135 selfloop transitions, 27 changer transitions 0/175 dead transitions. [2023-08-29 02:00:39,246 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 175 transitions, 712 flow [2023-08-29 02:00:39,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 02:00:39,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 02:00:39,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1070 transitions. [2023-08-29 02:00:39,249 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5602094240837696 [2023-08-29 02:00:39,249 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1070 transitions. [2023-08-29 02:00:39,249 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1070 transitions. [2023-08-29 02:00:39,250 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:00:39,250 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1070 transitions. [2023-08-29 02:00:39,252 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 107.0) internal successors, (1070), 10 states have internal predecessors, (1070), 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 02:00:39,256 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 191.0) internal successors, (2101), 11 states have internal predecessors, (2101), 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 02:00:39,257 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 191.0) internal successors, (2101), 11 states have internal predecessors, (2101), 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 02:00:39,258 INFO L175 Difference]: Start difference. First operand has 65 places, 59 transitions, 156 flow. Second operand 10 states and 1070 transitions. [2023-08-29 02:00:39,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 175 transitions, 712 flow [2023-08-29 02:00:39,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 175 transitions, 698 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-08-29 02:00:39,264 INFO L231 Difference]: Finished difference. Result has 79 places, 84 transitions, 346 flow [2023-08-29 02:00:39,264 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=346, PETRI_PLACES=79, PETRI_TRANSITIONS=84} [2023-08-29 02:00:39,266 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 23 predicate places. [2023-08-29 02:00:39,266 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 84 transitions, 346 flow [2023-08-29 02:00:39,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 92.33333333333333) internal successors, (831), 9 states have internal predecessors, (831), 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 02:00:39,270 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:00:39,270 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:00:39,279 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-29 02:00:39,476 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,SelfDestructingSolverStorable2 [2023-08-29 02:00:39,477 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-29 02:00:39,477 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:00:39,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1600781437, now seen corresponding path program 1 times [2023-08-29 02:00:39,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:00:39,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134158149] [2023-08-29 02:00:39,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:00:39,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:00:39,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:00:39,583 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:00:39,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:00:39,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134158149] [2023-08-29 02:00:39,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134158149] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 02:00:39,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1680221349] [2023-08-29 02:00:39,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:00:39,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:00:39,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:00:39,586 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 02:00:39,615 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 02:00:39,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:00:39,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-29 02:00:39,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 02:00:39,688 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:00:39,688 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 02:00:39,742 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:00:39,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1680221349] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 02:00:39,743 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 02:00:39,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-08-29 02:00:39,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303567618] [2023-08-29 02:00:39,744 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 02:00:39,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-29 02:00:39,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:00:39,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-29 02:00:39,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-08-29 02:00:39,779 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 191 [2023-08-29 02:00:39,781 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 84 transitions, 346 flow. Second operand has 13 states, 13 states have (on average 114.38461538461539) internal successors, (1487), 13 states have internal predecessors, (1487), 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 02:00:39,781 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:00:39,781 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 191 [2023-08-29 02:00:39,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:00:40,002 INFO L130 PetriNetUnfolder]: 305/1118 cut-off events. [2023-08-29 02:00:40,003 INFO L131 PetriNetUnfolder]: For 363/366 co-relation queries the response was YES. [2023-08-29 02:00:40,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2354 conditions, 1118 events. 305/1118 cut-off events. For 363/366 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 6570 event pairs, 207 based on Foata normal form. 6/1082 useless extension candidates. Maximal degree in co-relation 2296. Up to 545 conditions per place. [2023-08-29 02:00:40,011 INFO L137 encePairwiseOnDemand]: 188/191 looper letters, 28 selfloop transitions, 11 changer transitions 0/90 dead transitions. [2023-08-29 02:00:40,011 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 90 transitions, 460 flow [2023-08-29 02:00:40,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-29 02:00:40,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-29 02:00:40,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1397 transitions. [2023-08-29 02:00:40,014 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6095113438045375 [2023-08-29 02:00:40,015 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1397 transitions. [2023-08-29 02:00:40,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1397 transitions. [2023-08-29 02:00:40,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:00:40,016 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1397 transitions. [2023-08-29 02:00:40,020 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 116.41666666666667) internal successors, (1397), 12 states have internal predecessors, (1397), 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 02:00:40,023 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 191.0) internal successors, (2483), 13 states have internal predecessors, (2483), 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 02:00:40,024 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 191.0) internal successors, (2483), 13 states have internal predecessors, (2483), 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 02:00:40,024 INFO L175 Difference]: Start difference. First operand has 79 places, 84 transitions, 346 flow. Second operand 12 states and 1397 transitions. [2023-08-29 02:00:40,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 90 transitions, 460 flow [2023-08-29 02:00:40,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 90 transitions, 459 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 02:00:40,042 INFO L231 Difference]: Finished difference. Result has 95 places, 90 transitions, 429 flow [2023-08-29 02:00:40,043 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=345, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=429, PETRI_PLACES=95, PETRI_TRANSITIONS=90} [2023-08-29 02:00:40,044 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 39 predicate places. [2023-08-29 02:00:40,044 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 90 transitions, 429 flow [2023-08-29 02:00:40,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 114.38461538461539) internal successors, (1487), 13 states have internal predecessors, (1487), 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 02:00:40,046 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:00:40,046 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:00:40,055 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 02:00:40,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:00:40,252 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-29 02:00:40,252 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:00:40,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1534492163, now seen corresponding path program 2 times [2023-08-29 02:00:40,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:00:40,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240574103] [2023-08-29 02:00:40,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:00:40,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:00:40,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:00:40,642 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:00:40,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:00:40,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240574103] [2023-08-29 02:00:40,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240574103] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:00:40,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:00:40,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 02:00:40,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749203731] [2023-08-29 02:00:40,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:00:40,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:00:40,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:00:40,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:00:40,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:00:40,822 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 191 [2023-08-29 02:00:40,823 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 90 transitions, 429 flow. Second operand has 6 states, 6 states have (on average 99.0) internal successors, (594), 6 states have internal predecessors, (594), 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 02:00:40,823 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:00:40,823 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 191 [2023-08-29 02:00:40,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:00:41,354 INFO L130 PetriNetUnfolder]: 977/2350 cut-off events. [2023-08-29 02:00:41,355 INFO L131 PetriNetUnfolder]: For 2167/2181 co-relation queries the response was YES. [2023-08-29 02:00:41,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5852 conditions, 2350 events. 977/2350 cut-off events. For 2167/2181 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 13825 event pairs, 394 based on Foata normal form. 0/2258 useless extension candidates. Maximal degree in co-relation 5770. Up to 1488 conditions per place. [2023-08-29 02:00:41,372 INFO L137 encePairwiseOnDemand]: 176/191 looper letters, 127 selfloop transitions, 46 changer transitions 0/192 dead transitions. [2023-08-29 02:00:41,372 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 192 transitions, 1083 flow [2023-08-29 02:00:41,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:00:41,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:00:41,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 710 transitions. [2023-08-29 02:00:41,375 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6195462478184991 [2023-08-29 02:00:41,375 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 710 transitions. [2023-08-29 02:00:41,375 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 710 transitions. [2023-08-29 02:00:41,375 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:00:41,375 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 710 transitions. [2023-08-29 02:00:41,377 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 118.33333333333333) internal successors, (710), 6 states have internal predecessors, (710), 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 02:00:41,378 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 191.0) internal successors, (1337), 7 states have internal predecessors, (1337), 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 02:00:41,379 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 191.0) internal successors, (1337), 7 states have internal predecessors, (1337), 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 02:00:41,379 INFO L175 Difference]: Start difference. First operand has 95 places, 90 transitions, 429 flow. Second operand 6 states and 710 transitions. [2023-08-29 02:00:41,379 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 192 transitions, 1083 flow [2023-08-29 02:00:41,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 192 transitions, 1035 flow, removed 19 selfloop flow, removed 5 redundant places. [2023-08-29 02:00:41,389 INFO L231 Difference]: Finished difference. Result has 100 places, 131 transitions, 709 flow [2023-08-29 02:00:41,389 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=381, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=709, PETRI_PLACES=100, PETRI_TRANSITIONS=131} [2023-08-29 02:00:41,391 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 44 predicate places. [2023-08-29 02:00:41,391 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 131 transitions, 709 flow [2023-08-29 02:00:41,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 99.0) internal successors, (594), 6 states have internal predecessors, (594), 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 02:00:41,392 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:00:41,392 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:00:41,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 02:00:41,392 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-29 02:00:41,393 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:00:41,393 INFO L85 PathProgramCache]: Analyzing trace with hash -303030028, now seen corresponding path program 1 times [2023-08-29 02:00:41,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:00:41,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303591149] [2023-08-29 02:00:41,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:00:41,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:00:41,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:00:41,767 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:00:41,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:00:41,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303591149] [2023-08-29 02:00:41,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303591149] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:00:41,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:00:41,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 02:00:41,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480601187] [2023-08-29 02:00:41,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:00:41,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:00:41,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:00:41,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:00:41,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:00:41,925 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 191 [2023-08-29 02:00:41,926 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 131 transitions, 709 flow. Second operand has 6 states, 6 states have (on average 90.0) internal successors, (540), 6 states have internal predecessors, (540), 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 02:00:41,926 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:00:41,926 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 191 [2023-08-29 02:00:41,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:00:42,597 INFO L130 PetriNetUnfolder]: 1617/3419 cut-off events. [2023-08-29 02:00:42,597 INFO L131 PetriNetUnfolder]: For 4656/4688 co-relation queries the response was YES. [2023-08-29 02:00:42,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10819 conditions, 3419 events. 1617/3419 cut-off events. For 4656/4688 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 19474 event pairs, 555 based on Foata normal form. 0/3295 useless extension candidates. Maximal degree in co-relation 10757. Up to 2681 conditions per place. [2023-08-29 02:00:42,631 INFO L137 encePairwiseOnDemand]: 168/191 looper letters, 170 selfloop transitions, 89 changer transitions 8/274 dead transitions. [2023-08-29 02:00:42,632 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 274 transitions, 1793 flow [2023-08-29 02:00:42,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:00:42,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:00:42,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 689 transitions. [2023-08-29 02:00:42,634 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6012216404886562 [2023-08-29 02:00:42,635 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 689 transitions. [2023-08-29 02:00:42,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 689 transitions. [2023-08-29 02:00:42,636 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:00:42,636 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 689 transitions. [2023-08-29 02:00:42,638 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 114.83333333333333) internal successors, (689), 6 states have internal predecessors, (689), 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 02:00:42,639 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 191.0) internal successors, (1337), 7 states have internal predecessors, (1337), 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 02:00:42,640 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 191.0) internal successors, (1337), 7 states have internal predecessors, (1337), 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 02:00:42,640 INFO L175 Difference]: Start difference. First operand has 100 places, 131 transitions, 709 flow. Second operand 6 states and 689 transitions. [2023-08-29 02:00:42,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 274 transitions, 1793 flow [2023-08-29 02:00:42,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 274 transitions, 1793 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 02:00:42,659 INFO L231 Difference]: Finished difference. Result has 110 places, 214 transitions, 1483 flow [2023-08-29 02:00:42,659 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=709, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1483, PETRI_PLACES=110, PETRI_TRANSITIONS=214} [2023-08-29 02:00:42,662 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 54 predicate places. [2023-08-29 02:00:42,662 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 214 transitions, 1483 flow [2023-08-29 02:00:42,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 90.0) internal successors, (540), 6 states have internal predecessors, (540), 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 02:00:42,664 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:00:42,665 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:00:42,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 02:00:42,665 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-29 02:00:42,669 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:00:42,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1952290432, now seen corresponding path program 1 times [2023-08-29 02:00:42,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:00:42,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089625118] [2023-08-29 02:00:42,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:00:42,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:00:42,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:00:43,045 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:00:43,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:00:43,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089625118] [2023-08-29 02:00:43,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089625118] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:00:43,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:00:43,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 02:00:43,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257086720] [2023-08-29 02:00:43,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:00:43,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:00:43,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:00:43,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:00:43,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:00:43,165 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 191 [2023-08-29 02:00:43,166 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 214 transitions, 1483 flow. Second operand has 6 states, 6 states have (on average 90.0) internal successors, (540), 6 states have internal predecessors, (540), 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 02:00:43,166 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:00:43,167 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 191 [2023-08-29 02:00:43,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:00:43,857 INFO L130 PetriNetUnfolder]: 1832/3823 cut-off events. [2023-08-29 02:00:43,857 INFO L131 PetriNetUnfolder]: For 9634/9714 co-relation queries the response was YES. [2023-08-29 02:00:43,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14678 conditions, 3823 events. 1832/3823 cut-off events. For 9634/9714 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 22002 event pairs, 612 based on Foata normal form. 0/3694 useless extension candidates. Maximal degree in co-relation 14611. Up to 3283 conditions per place. [2023-08-29 02:00:43,891 INFO L137 encePairwiseOnDemand]: 176/191 looper letters, 229 selfloop transitions, 72 changer transitions 0/306 dead transitions. [2023-08-29 02:00:43,891 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 306 transitions, 2704 flow [2023-08-29 02:00:43,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:00:43,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:00:43,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 642 transitions. [2023-08-29 02:00:43,893 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5602094240837696 [2023-08-29 02:00:43,894 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 642 transitions. [2023-08-29 02:00:43,894 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 642 transitions. [2023-08-29 02:00:43,894 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:00:43,894 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 642 transitions. [2023-08-29 02:00:43,895 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 107.0) internal successors, (642), 6 states have internal predecessors, (642), 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 02:00:43,897 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 191.0) internal successors, (1337), 7 states have internal predecessors, (1337), 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 02:00:43,897 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 191.0) internal successors, (1337), 7 states have internal predecessors, (1337), 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 02:00:43,898 INFO L175 Difference]: Start difference. First operand has 110 places, 214 transitions, 1483 flow. Second operand 6 states and 642 transitions. [2023-08-29 02:00:43,898 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 306 transitions, 2704 flow [2023-08-29 02:00:43,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 306 transitions, 2572 flow, removed 66 selfloop flow, removed 0 redundant places. [2023-08-29 02:00:43,922 INFO L231 Difference]: Finished difference. Result has 120 places, 268 transitions, 2178 flow [2023-08-29 02:00:43,922 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=1375, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2178, PETRI_PLACES=120, PETRI_TRANSITIONS=268} [2023-08-29 02:00:43,923 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 64 predicate places. [2023-08-29 02:00:43,923 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 268 transitions, 2178 flow [2023-08-29 02:00:43,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 90.0) internal successors, (540), 6 states have internal predecessors, (540), 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 02:00:43,923 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:00:43,923 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:00:43,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 02:00:43,924 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-29 02:00:43,924 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:00:43,924 INFO L85 PathProgramCache]: Analyzing trace with hash 422815756, now seen corresponding path program 1 times [2023-08-29 02:00:43,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:00:43,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33514324] [2023-08-29 02:00:43,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:00:43,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:00:43,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:00:44,337 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-29 02:00:44,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:00:44,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33514324] [2023-08-29 02:00:44,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33514324] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 02:00:44,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1283709170] [2023-08-29 02:00:44,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:00:44,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:00:44,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:00:44,340 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 02:00:44,351 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-29 02:00:44,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:00:44,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 28 conjunts are in the unsatisfiable core [2023-08-29 02:00:44,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 02:00:44,515 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 13 treesize of output 9 [2023-08-29 02:00:44,539 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:00:44,540 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 02:00:44,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1283709170] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:00:44,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-29 02:00:44,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2023-08-29 02:00:44,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558978957] [2023-08-29 02:00:44,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:00:44,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:00:44,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:00:44,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:00:44,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:00:44,672 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 191 [2023-08-29 02:00:44,673 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 268 transitions, 2178 flow. Second operand has 6 states, 6 states have (on average 107.0) internal successors, (642), 6 states have internal predecessors, (642), 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 02:00:44,673 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:00:44,674 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 191 [2023-08-29 02:00:44,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:00:45,725 INFO L130 PetriNetUnfolder]: 2389/6029 cut-off events. [2023-08-29 02:00:45,725 INFO L131 PetriNetUnfolder]: For 18507/18746 co-relation queries the response was YES. [2023-08-29 02:00:45,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23061 conditions, 6029 events. 2389/6029 cut-off events. For 18507/18746 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 44900 event pairs, 342 based on Foata normal form. 23/5928 useless extension candidates. Maximal degree in co-relation 22989. Up to 1652 conditions per place. [2023-08-29 02:00:45,779 INFO L137 encePairwiseOnDemand]: 183/191 looper letters, 129 selfloop transitions, 12 changer transitions 0/348 dead transitions. [2023-08-29 02:00:45,780 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 348 transitions, 3083 flow [2023-08-29 02:00:45,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:00:45,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:00:45,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 696 transitions. [2023-08-29 02:00:45,782 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6073298429319371 [2023-08-29 02:00:45,782 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 696 transitions. [2023-08-29 02:00:45,782 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 696 transitions. [2023-08-29 02:00:45,783 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:00:45,783 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 696 transitions. [2023-08-29 02:00:45,785 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 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 02:00:45,787 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 191.0) internal successors, (1337), 7 states have internal predecessors, (1337), 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 02:00:45,787 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 191.0) internal successors, (1337), 7 states have internal predecessors, (1337), 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 02:00:45,787 INFO L175 Difference]: Start difference. First operand has 120 places, 268 transitions, 2178 flow. Second operand 6 states and 696 transitions. [2023-08-29 02:00:45,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 348 transitions, 3083 flow [2023-08-29 02:00:45,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 348 transitions, 2881 flow, removed 101 selfloop flow, removed 0 redundant places. [2023-08-29 02:00:45,866 INFO L231 Difference]: Finished difference. Result has 128 places, 278 transitions, 2095 flow [2023-08-29 02:00:45,867 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=1976, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=268, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=259, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2095, PETRI_PLACES=128, PETRI_TRANSITIONS=278} [2023-08-29 02:00:45,869 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 72 predicate places. [2023-08-29 02:00:45,869 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 278 transitions, 2095 flow [2023-08-29 02:00:45,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 107.0) internal successors, (642), 6 states have internal predecessors, (642), 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 02:00:45,869 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:00:45,870 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:00:45,879 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-29 02:00:46,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:00:46,076 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-29 02:00:46,077 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:00:46,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1743318624, now seen corresponding path program 2 times [2023-08-29 02:00:46,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:00:46,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200561678] [2023-08-29 02:00:46,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:00:46,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:00:46,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:00:46,673 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-29 02:00:46,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:00:46,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200561678] [2023-08-29 02:00:46,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200561678] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 02:00:46,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [420001990] [2023-08-29 02:00:46,674 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-29 02:00:46,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:00:46,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:00:46,675 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 02:00:46,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-08-29 02:00:46,762 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-29 02:00:46,763 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-29 02:00:46,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 28 conjunts are in the unsatisfiable core [2023-08-29 02:00:46,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 02:00:46,813 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 13 treesize of output 9 [2023-08-29 02:00:46,870 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:00:46,871 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 02:00:46,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [420001990] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:00:46,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-29 02:00:46,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2023-08-29 02:00:46,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253794879] [2023-08-29 02:00:46,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:00:46,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:00:46,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:00:46,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:00:46,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-08-29 02:00:47,014 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 191 [2023-08-29 02:00:47,015 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 278 transitions, 2095 flow. Second operand has 6 states, 6 states have (on average 107.0) internal successors, (642), 6 states have internal predecessors, (642), 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 02:00:47,015 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:00:47,015 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 191 [2023-08-29 02:00:47,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:00:48,176 INFO L130 PetriNetUnfolder]: 2681/6686 cut-off events. [2023-08-29 02:00:48,177 INFO L131 PetriNetUnfolder]: For 18610/18859 co-relation queries the response was YES. [2023-08-29 02:00:48,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25962 conditions, 6686 events. 2681/6686 cut-off events. For 18610/18859 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 51069 event pairs, 383 based on Foata normal form. 31/6628 useless extension candidates. Maximal degree in co-relation 25885. Up to 1878 conditions per place. [2023-08-29 02:00:48,260 INFO L137 encePairwiseOnDemand]: 184/191 looper letters, 116 selfloop transitions, 19 changer transitions 0/342 dead transitions. [2023-08-29 02:00:48,261 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 342 transitions, 2888 flow [2023-08-29 02:00:48,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:00:48,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:00:48,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 688 transitions. [2023-08-29 02:00:48,264 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6003490401396161 [2023-08-29 02:00:48,264 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 688 transitions. [2023-08-29 02:00:48,264 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 688 transitions. [2023-08-29 02:00:48,264 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:00:48,265 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 688 transitions. [2023-08-29 02:00:48,266 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 114.66666666666667) internal successors, (688), 6 states have internal predecessors, (688), 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 02:00:48,268 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 191.0) internal successors, (1337), 7 states have internal predecessors, (1337), 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 02:00:48,269 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 191.0) internal successors, (1337), 7 states have internal predecessors, (1337), 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 02:00:48,269 INFO L175 Difference]: Start difference. First operand has 128 places, 278 transitions, 2095 flow. Second operand 6 states and 688 transitions. [2023-08-29 02:00:48,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 342 transitions, 2888 flow [2023-08-29 02:00:48,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 342 transitions, 2887 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 02:00:48,322 INFO L231 Difference]: Finished difference. Result has 134 places, 287 transitions, 2236 flow [2023-08-29 02:00:48,322 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=2094, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=262, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2236, PETRI_PLACES=134, PETRI_TRANSITIONS=287} [2023-08-29 02:00:48,323 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 78 predicate places. [2023-08-29 02:00:48,323 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 287 transitions, 2236 flow [2023-08-29 02:00:48,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 107.0) internal successors, (642), 6 states have internal predecessors, (642), 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 02:00:48,324 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:00:48,324 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:00:48,345 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-08-29 02:00:48,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:00:48,525 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-29 02:00:48,526 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:00:48,526 INFO L85 PathProgramCache]: Analyzing trace with hash -275928975, now seen corresponding path program 1 times [2023-08-29 02:00:48,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:00:48,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710975070] [2023-08-29 02:00:48,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:00:48,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:00:48,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:00:48,872 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-29 02:00:48,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:00:48,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710975070] [2023-08-29 02:00:48,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710975070] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 02:00:48,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2056500214] [2023-08-29 02:00:48,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:00:48,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:00:48,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:00:48,874 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 02:00:48,877 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-08-29 02:00:48,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:00:48,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 28 conjunts are in the unsatisfiable core [2023-08-29 02:00:48,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 02:00:49,036 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 13 treesize of output 9 [2023-08-29 02:00:49,064 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:00:49,064 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 02:00:49,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2056500214] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:00:49,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-29 02:00:49,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2023-08-29 02:00:49,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603163458] [2023-08-29 02:00:49,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:00:49,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:00:49,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:00:49,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:00:49,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:00:49,161 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 191 [2023-08-29 02:00:49,162 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 287 transitions, 2236 flow. Second operand has 6 states, 6 states have (on average 107.0) internal successors, (642), 6 states have internal predecessors, (642), 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 02:00:49,162 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:00:49,162 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 191 [2023-08-29 02:00:49,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:00:50,068 INFO L130 PetriNetUnfolder]: 2367/6020 cut-off events. [2023-08-29 02:00:50,068 INFO L131 PetriNetUnfolder]: For 18090/18296 co-relation queries the response was YES. [2023-08-29 02:00:50,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23786 conditions, 6020 events. 2367/6020 cut-off events. For 18090/18296 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 45566 event pairs, 380 based on Foata normal form. 25/5969 useless extension candidates. Maximal degree in co-relation 23706. Up to 1708 conditions per place. [2023-08-29 02:00:50,120 INFO L137 encePairwiseOnDemand]: 184/191 looper letters, 118 selfloop transitions, 22 changer transitions 0/347 dead transitions. [2023-08-29 02:00:50,120 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 347 transitions, 3001 flow [2023-08-29 02:00:50,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-29 02:00:50,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-29 02:00:50,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 801 transitions. [2023-08-29 02:00:50,123 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5991024682124159 [2023-08-29 02:00:50,123 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 801 transitions. [2023-08-29 02:00:50,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 801 transitions. [2023-08-29 02:00:50,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:00:50,124 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 801 transitions. [2023-08-29 02:00:50,126 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 114.42857142857143) internal successors, (801), 7 states have internal predecessors, (801), 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 02:00:50,128 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 191.0) internal successors, (1528), 8 states have internal predecessors, (1528), 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 02:00:50,128 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 191.0) internal successors, (1528), 8 states have internal predecessors, (1528), 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 02:00:50,129 INFO L175 Difference]: Start difference. First operand has 134 places, 287 transitions, 2236 flow. Second operand 7 states and 801 transitions. [2023-08-29 02:00:50,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 347 transitions, 3001 flow [2023-08-29 02:00:50,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 347 transitions, 2987 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-29 02:00:50,179 INFO L231 Difference]: Finished difference. Result has 141 places, 290 transitions, 2326 flow [2023-08-29 02:00:50,180 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=2201, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=285, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2326, PETRI_PLACES=141, PETRI_TRANSITIONS=290} [2023-08-29 02:00:50,180 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 85 predicate places. [2023-08-29 02:00:50,180 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 290 transitions, 2326 flow [2023-08-29 02:00:50,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 107.0) internal successors, (642), 6 states have internal predecessors, (642), 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 02:00:50,181 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:00:50,181 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:00:50,187 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-08-29 02:00:50,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:00:50,387 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-29 02:00:50,387 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:00:50,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1455599038, now seen corresponding path program 3 times [2023-08-29 02:00:50,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:00:50,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159577083] [2023-08-29 02:00:50,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:00:50,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:00:50,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:00:50,793 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-29 02:00:50,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:00:50,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159577083] [2023-08-29 02:00:50,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159577083] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 02:00:50,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [692432749] [2023-08-29 02:00:50,794 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-29 02:00:50,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:00:50,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:00:50,797 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 02:00:50,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-08-29 02:00:50,905 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-08-29 02:00:50,905 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-29 02:00:50,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 28 conjunts are in the unsatisfiable core [2023-08-29 02:00:50,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 02:00:50,948 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 13 treesize of output 9 [2023-08-29 02:00:50,985 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:00:50,985 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 02:00:50,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [692432749] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:00:50,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-29 02:00:50,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2023-08-29 02:00:50,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908131687] [2023-08-29 02:00:50,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:00:50,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:00:50,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:00:50,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:00:50,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-08-29 02:00:51,088 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 191 [2023-08-29 02:00:51,089 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 290 transitions, 2326 flow. Second operand has 6 states, 6 states have (on average 107.0) internal successors, (642), 6 states have internal predecessors, (642), 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 02:00:51,089 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:00:51,089 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 191 [2023-08-29 02:00:51,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:00:52,158 INFO L130 PetriNetUnfolder]: 2450/6272 cut-off events. [2023-08-29 02:00:52,158 INFO L131 PetriNetUnfolder]: For 21097/21338 co-relation queries the response was YES. [2023-08-29 02:00:52,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25206 conditions, 6272 events. 2450/6272 cut-off events. For 21097/21338 co-relation queries the response was YES. Maximal size of possible extension queue 193. Compared 50436 event pairs, 286 based on Foata normal form. 12/6191 useless extension candidates. Maximal degree in co-relation 25123. Up to 1680 conditions per place. [2023-08-29 02:00:52,212 INFO L137 encePairwiseOnDemand]: 184/191 looper letters, 130 selfloop transitions, 17 changer transitions 0/354 dead transitions. [2023-08-29 02:00:52,213 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 354 transitions, 3014 flow [2023-08-29 02:00:52,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:00:52,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:00:52,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 698 transitions. [2023-08-29 02:00:52,215 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6090750436300174 [2023-08-29 02:00:52,215 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 698 transitions. [2023-08-29 02:00:52,216 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 698 transitions. [2023-08-29 02:00:52,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:00:52,216 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 698 transitions. [2023-08-29 02:00:52,218 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 116.33333333333333) internal successors, (698), 6 states have internal predecessors, (698), 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 02:00:52,220 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 191.0) internal successors, (1337), 7 states have internal predecessors, (1337), 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 02:00:52,220 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 191.0) internal successors, (1337), 7 states have internal predecessors, (1337), 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 02:00:52,220 INFO L175 Difference]: Start difference. First operand has 141 places, 290 transitions, 2326 flow. Second operand 6 states and 698 transitions. [2023-08-29 02:00:52,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 354 transitions, 3014 flow [2023-08-29 02:00:52,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 354 transitions, 2974 flow, removed 8 selfloop flow, removed 4 redundant places. [2023-08-29 02:00:52,283 INFO L231 Difference]: Finished difference. Result has 145 places, 293 transitions, 2370 flow [2023-08-29 02:00:52,283 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=2247, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=287, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=272, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2370, PETRI_PLACES=145, PETRI_TRANSITIONS=293} [2023-08-29 02:00:52,284 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 89 predicate places. [2023-08-29 02:00:52,284 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 293 transitions, 2370 flow [2023-08-29 02:00:52,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 107.0) internal successors, (642), 6 states have internal predecessors, (642), 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 02:00:52,284 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:00:52,285 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:00:52,292 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-08-29 02:00:52,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:00:52,490 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-29 02:00:52,490 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:00:52,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1142554823, now seen corresponding path program 1 times [2023-08-29 02:00:52,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:00:52,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766161539] [2023-08-29 02:00:52,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:00:52,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:00:52,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:00:52,781 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-08-29 02:00:52,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:00:52,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766161539] [2023-08-29 02:00:52,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766161539] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:00:52,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:00:52,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 02:00:52,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755338736] [2023-08-29 02:00:52,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:00:52,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:00:52,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:00:52,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:00:52,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:00:52,942 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 191 [2023-08-29 02:00:52,943 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 293 transitions, 2370 flow. Second operand has 6 states, 6 states have (on average 101.0) internal successors, (606), 6 states have internal predecessors, (606), 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 02:00:52,943 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:00:52,943 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 191 [2023-08-29 02:00:52,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:00:54,433 INFO L130 PetriNetUnfolder]: 3421/7652 cut-off events. [2023-08-29 02:00:54,433 INFO L131 PetriNetUnfolder]: For 32130/32315 co-relation queries the response was YES. [2023-08-29 02:00:54,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34592 conditions, 7652 events. 3421/7652 cut-off events. For 32130/32315 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 57241 event pairs, 770 based on Foata normal form. 71/7693 useless extension candidates. Maximal degree in co-relation 34507. Up to 5537 conditions per place. [2023-08-29 02:00:54,521 INFO L137 encePairwiseOnDemand]: 180/191 looper letters, 271 selfloop transitions, 84 changer transitions 0/406 dead transitions. [2023-08-29 02:00:54,522 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 406 transitions, 4302 flow [2023-08-29 02:00:54,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:00:54,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:00:54,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 679 transitions. [2023-08-29 02:00:54,524 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5924956369982548 [2023-08-29 02:00:54,524 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 679 transitions. [2023-08-29 02:00:54,525 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 679 transitions. [2023-08-29 02:00:54,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:00:54,525 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 679 transitions. [2023-08-29 02:00:54,527 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 113.16666666666667) internal successors, (679), 6 states have internal predecessors, (679), 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 02:00:54,529 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 191.0) internal successors, (1337), 7 states have internal predecessors, (1337), 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 02:00:54,530 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 191.0) internal successors, (1337), 7 states have internal predecessors, (1337), 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 02:00:54,530 INFO L175 Difference]: Start difference. First operand has 145 places, 293 transitions, 2370 flow. Second operand 6 states and 679 transitions. [2023-08-29 02:00:54,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 406 transitions, 4302 flow [2023-08-29 02:00:54,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 406 transitions, 4232 flow, removed 17 selfloop flow, removed 2 redundant places. [2023-08-29 02:00:54,617 INFO L231 Difference]: Finished difference. Result has 153 places, 332 transitions, 3238 flow [2023-08-29 02:00:54,617 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=2348, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3238, PETRI_PLACES=153, PETRI_TRANSITIONS=332} [2023-08-29 02:00:54,618 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 97 predicate places. [2023-08-29 02:00:54,618 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 332 transitions, 3238 flow [2023-08-29 02:00:54,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 101.0) internal successors, (606), 6 states have internal predecessors, (606), 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 02:00:54,619 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:00:54,619 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 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 02:00:54,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-29 02:00:54,619 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-29 02:00:54,620 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:00:54,620 INFO L85 PathProgramCache]: Analyzing trace with hash 725617908, now seen corresponding path program 1 times [2023-08-29 02:00:54,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:00:54,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748202440] [2023-08-29 02:00:54,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:00:54,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:00:54,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:00:54,681 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:00:54,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:00:54,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748202440] [2023-08-29 02:00:54,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748202440] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 02:00:54,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2109046582] [2023-08-29 02:00:54,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:00:54,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:00:54,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:00:54,684 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 02:00:54,710 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-08-29 02:00:54,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:00:54,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-29 02:00:54,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 02:00:54,838 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:00:54,838 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 02:00:54,863 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:00:54,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2109046582] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 02:00:54,864 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 02:00:54,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-08-29 02:00:54,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170746073] [2023-08-29 02:00:54,864 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 02:00:54,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-29 02:00:54,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:00:54,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-29 02:00:54,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-29 02:00:54,882 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 191 [2023-08-29 02:00:54,883 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 332 transitions, 3238 flow. Second operand has 7 states, 7 states have (on average 116.0) internal successors, (812), 7 states have internal predecessors, (812), 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 02:00:54,884 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:00:54,884 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 191 [2023-08-29 02:00:54,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:00:56,358 INFO L130 PetriNetUnfolder]: 3935/9640 cut-off events. [2023-08-29 02:00:56,358 INFO L131 PetriNetUnfolder]: For 45601/46175 co-relation queries the response was YES. [2023-08-29 02:00:56,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44713 conditions, 9640 events. 3935/9640 cut-off events. For 45601/46175 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 73377 event pairs, 419 based on Foata normal form. 131/9678 useless extension candidates. Maximal degree in co-relation 44625. Up to 2700 conditions per place. [2023-08-29 02:00:56,446 INFO L137 encePairwiseOnDemand]: 187/191 looper letters, 195 selfloop transitions, 23 changer transitions 0/455 dead transitions. [2023-08-29 02:00:56,447 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 455 transitions, 4903 flow [2023-08-29 02:00:56,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:00:56,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:00:56,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 751 transitions. [2023-08-29 02:00:56,449 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6553228621291448 [2023-08-29 02:00:56,449 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 751 transitions. [2023-08-29 02:00:56,449 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 751 transitions. [2023-08-29 02:00:56,450 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:00:56,450 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 751 transitions. [2023-08-29 02:00:56,451 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 125.16666666666667) internal successors, (751), 6 states have internal predecessors, (751), 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 02:00:56,453 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 191.0) internal successors, (1337), 7 states have internal predecessors, (1337), 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 02:00:56,453 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 191.0) internal successors, (1337), 7 states have internal predecessors, (1337), 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 02:00:56,454 INFO L175 Difference]: Start difference. First operand has 153 places, 332 transitions, 3238 flow. Second operand 6 states and 751 transitions. [2023-08-29 02:00:56,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 455 transitions, 4903 flow [2023-08-29 02:00:56,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 455 transitions, 4763 flow, removed 70 selfloop flow, removed 0 redundant places. [2023-08-29 02:00:56,594 INFO L231 Difference]: Finished difference. Result has 162 places, 341 transitions, 3272 flow [2023-08-29 02:00:56,594 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=3098, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=332, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=317, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3272, PETRI_PLACES=162, PETRI_TRANSITIONS=341} [2023-08-29 02:00:56,594 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 106 predicate places. [2023-08-29 02:00:56,594 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 341 transitions, 3272 flow [2023-08-29 02:00:56,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 116.0) internal successors, (812), 7 states have internal predecessors, (812), 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 02:00:56,595 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:00:56,595 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:00:56,605 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-08-29 02:00:56,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-08-29 02:00:56,800 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-29 02:00:56,801 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:00:56,801 INFO L85 PathProgramCache]: Analyzing trace with hash -492140983, now seen corresponding path program 1 times [2023-08-29 02:00:56,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:00:56,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380473736] [2023-08-29 02:00:56,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:00:56,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:00:56,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:00:57,500 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:00:57,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:00:57,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380473736] [2023-08-29 02:00:57,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380473736] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 02:00:57,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [848903863] [2023-08-29 02:00:57,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:00:57,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:00:57,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:00:57,503 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 02:00:57,524 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-08-29 02:00:57,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:00:57,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 46 conjunts are in the unsatisfiable core [2023-08-29 02:00:57,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 02:00:57,951 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 02:00:57,997 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 02:00:58,037 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 0 case distinctions, treesize of input 26 treesize of output 28 [2023-08-29 02:00:58,092 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 0 case distinctions, treesize of input 33 treesize of output 38 [2023-08-29 02:00:58,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:00:58,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:00:58,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:00:58,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:00:58,175 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 48 [2023-08-29 02:00:58,216 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:00:58,216 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 02:00:59,090 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:00:59,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [848903863] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 02:00:59,091 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 02:00:59,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 30 [2023-08-29 02:00:59,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795922727] [2023-08-29 02:00:59,092 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 02:00:59,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-08-29 02:00:59,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:00:59,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-08-29 02:00:59,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=770, Unknown=0, NotChecked=0, Total=930 [2023-08-29 02:01:02,209 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 191 [2023-08-29 02:01:02,211 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 341 transitions, 3272 flow. Second operand has 31 states, 31 states have (on average 87.54838709677419) internal successors, (2714), 31 states have internal predecessors, (2714), 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 02:01:02,211 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:01:02,211 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 191 [2023-08-29 02:01:02,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:01:05,338 INFO L130 PetriNetUnfolder]: 6142/13453 cut-off events. [2023-08-29 02:01:05,338 INFO L131 PetriNetUnfolder]: For 70420/70838 co-relation queries the response was YES. [2023-08-29 02:01:05,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68804 conditions, 13453 events. 6142/13453 cut-off events. For 70420/70838 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 100765 event pairs, 631 based on Foata normal form. 63/13474 useless extension candidates. Maximal degree in co-relation 68712. Up to 4627 conditions per place. [2023-08-29 02:01:05,460 INFO L137 encePairwiseOnDemand]: 173/191 looper letters, 736 selfloop transitions, 133 changer transitions 4/924 dead transitions. [2023-08-29 02:01:05,460 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 924 transitions, 10577 flow [2023-08-29 02:01:05,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-29 02:01:05,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-29 02:01:05,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1699 transitions. [2023-08-29 02:01:05,466 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5232522328303049 [2023-08-29 02:01:05,466 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1699 transitions. [2023-08-29 02:01:05,466 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1699 transitions. [2023-08-29 02:01:05,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:01:05,467 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1699 transitions. [2023-08-29 02:01:05,471 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 99.94117647058823) internal successors, (1699), 17 states have internal predecessors, (1699), 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 02:01:05,475 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 191.0) internal successors, (3438), 18 states have internal predecessors, (3438), 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 02:01:05,476 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 191.0) internal successors, (3438), 18 states have internal predecessors, (3438), 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 02:01:05,476 INFO L175 Difference]: Start difference. First operand has 162 places, 341 transitions, 3272 flow. Second operand 17 states and 1699 transitions. [2023-08-29 02:01:05,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 924 transitions, 10577 flow [2023-08-29 02:01:05,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 924 transitions, 10559 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 02:01:05,630 INFO L231 Difference]: Finished difference. Result has 189 places, 441 transitions, 5151 flow [2023-08-29 02:01:05,630 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=3262, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=341, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=5151, PETRI_PLACES=189, PETRI_TRANSITIONS=441} [2023-08-29 02:01:05,631 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 133 predicate places. [2023-08-29 02:01:05,631 INFO L495 AbstractCegarLoop]: Abstraction has has 189 places, 441 transitions, 5151 flow [2023-08-29 02:01:05,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 87.54838709677419) internal successors, (2714), 31 states have internal predecessors, (2714), 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 02:01:05,632 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:01:05,632 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:01:05,640 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-08-29 02:01:05,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-08-29 02:01:05,838 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-29 02:01:05,838 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:01:05,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1866728547, now seen corresponding path program 1 times [2023-08-29 02:01:05,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:01:05,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440417722] [2023-08-29 02:01:05,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:01:05,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:01:05,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:01:06,489 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:01:06,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:01:06,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440417722] [2023-08-29 02:01:06,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440417722] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 02:01:06,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [334844661] [2023-08-29 02:01:06,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:01:06,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:01:06,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:01:06,491 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 02:01:06,495 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-08-29 02:01:06,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:01:06,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 41 conjunts are in the unsatisfiable core [2023-08-29 02:01:06,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 02:01:06,944 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 02:01:06,983 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 02:01:07,030 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 0 case distinctions, treesize of input 26 treesize of output 28 [2023-08-29 02:01:07,086 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 0 case distinctions, treesize of input 33 treesize of output 38 [2023-08-29 02:01:07,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:01:07,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:01:07,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:01:07,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:01:07,143 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 48 [2023-08-29 02:01:07,176 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:01:07,177 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 02:01:08,018 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:01:08,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [334844661] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 02:01:08,019 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 02:01:08,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 30 [2023-08-29 02:01:08,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522518230] [2023-08-29 02:01:08,019 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 02:01:08,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-08-29 02:01:08,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:01:08,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-08-29 02:01:08,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=770, Unknown=0, NotChecked=0, Total=930 [2023-08-29 02:01:09,740 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 191 [2023-08-29 02:01:09,742 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 441 transitions, 5151 flow. Second operand has 31 states, 31 states have (on average 78.2258064516129) internal successors, (2425), 31 states have internal predecessors, (2425), 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 02:01:09,742 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:01:09,742 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 191 [2023-08-29 02:01:09,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:01:15,458 INFO L130 PetriNetUnfolder]: 9904/20673 cut-off events. [2023-08-29 02:01:15,458 INFO L131 PetriNetUnfolder]: For 127278/127575 co-relation queries the response was YES. [2023-08-29 02:01:15,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111399 conditions, 20673 events. 9904/20673 cut-off events. For 127278/127575 co-relation queries the response was YES. Maximal size of possible extension queue 318. Compared 160851 event pairs, 1672 based on Foata normal form. 146/20799 useless extension candidates. Maximal degree in co-relation 111293. Up to 9654 conditions per place. [2023-08-29 02:01:15,743 INFO L137 encePairwiseOnDemand]: 162/191 looper letters, 1000 selfloop transitions, 171 changer transitions 14/1200 dead transitions. [2023-08-29 02:01:15,743 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 1200 transitions, 14520 flow [2023-08-29 02:01:15,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-29 02:01:15,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-29 02:01:15,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1639 transitions. [2023-08-29 02:01:15,748 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5047736372035725 [2023-08-29 02:01:15,748 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1639 transitions. [2023-08-29 02:01:15,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1639 transitions. [2023-08-29 02:01:15,749 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:01:15,749 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1639 transitions. [2023-08-29 02:01:15,753 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 96.41176470588235) internal successors, (1639), 17 states have internal predecessors, (1639), 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 02:01:15,757 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 191.0) internal successors, (3438), 18 states have internal predecessors, (3438), 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 02:01:15,758 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 191.0) internal successors, (3438), 18 states have internal predecessors, (3438), 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 02:01:15,758 INFO L175 Difference]: Start difference. First operand has 189 places, 441 transitions, 5151 flow. Second operand 17 states and 1639 transitions. [2023-08-29 02:01:15,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 1200 transitions, 14520 flow [2023-08-29 02:01:16,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 1200 transitions, 14465 flow, removed 27 selfloop flow, removed 1 redundant places. [2023-08-29 02:01:16,132 INFO L231 Difference]: Finished difference. Result has 214 places, 578 transitions, 7629 flow [2023-08-29 02:01:16,132 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=5124, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=441, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=306, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=7629, PETRI_PLACES=214, PETRI_TRANSITIONS=578} [2023-08-29 02:01:16,133 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 158 predicate places. [2023-08-29 02:01:16,133 INFO L495 AbstractCegarLoop]: Abstraction has has 214 places, 578 transitions, 7629 flow [2023-08-29 02:01:16,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 78.2258064516129) internal successors, (2425), 31 states have internal predecessors, (2425), 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 02:01:16,134 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:01:16,134 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:01:16,143 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-08-29 02:01:16,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-08-29 02:01:16,340 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-29 02:01:16,340 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:01:16,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1267003643, now seen corresponding path program 2 times [2023-08-29 02:01:16,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:01:16,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475959579] [2023-08-29 02:01:16,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:01:16,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:01:16,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:01:17,478 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:01:17,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:01:17,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475959579] [2023-08-29 02:01:17,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475959579] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 02:01:17,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1614685384] [2023-08-29 02:01:17,479 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-29 02:01:17,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:01:17,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:01:17,481 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 02:01:17,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-08-29 02:01:17,642 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-29 02:01:17,643 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-29 02:01:17,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 54 conjunts are in the unsatisfiable core [2023-08-29 02:01:17,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 02:01:17,886 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 02:01:17,915 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 02:01:17,958 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 0 case distinctions, treesize of input 26 treesize of output 28 [2023-08-29 02:01:18,009 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 0 case distinctions, treesize of input 33 treesize of output 38 [2023-08-29 02:01:18,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:01:18,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:01:18,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:01:18,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:01:18,134 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 48 [2023-08-29 02:01:18,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:01:18,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:01:18,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:01:18,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:01:18,168 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 50 [2023-08-29 02:01:18,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:01:18,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:01:18,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:01:18,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:01:18,202 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 50 [2023-08-29 02:01:18,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:01:18,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:01:18,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:01:18,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:01:18,229 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 50 [2023-08-29 02:01:18,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:01:18,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:01:18,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:01:18,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:01:18,280 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 48 [2023-08-29 02:01:18,307 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:01:18,307 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 02:01:37,573 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:01:37,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1614685384] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 02:01:37,574 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 02:01:37,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 12] total 31 [2023-08-29 02:01:37,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329363872] [2023-08-29 02:01:37,574 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 02:01:37,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-08-29 02:01:37,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:01:37,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-08-29 02:01:37,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=803, Unknown=5, NotChecked=0, Total=992 [2023-08-29 02:01:41,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:01:43,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:01:45,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:01:48,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:01:50,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:01:52,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:01:54,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:01:56,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:01:59,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:02:01,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:02:04,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:02:07,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:02:09,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:02:12,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:02:15,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:02:16,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:02:18,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:02:21,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:02:24,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:02:28,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:02:30,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:02:33,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:02:36,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:02:38,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:02:40,257 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:02:42,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:02:45,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:02:47,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:02:51,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:02:53,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:02:55,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:02:59,759 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:03:01,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:03:04,224 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:03:07,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:03:12,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:03:16,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:03:16,750 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 191 [2023-08-29 02:03:16,752 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 578 transitions, 7629 flow. Second operand has 32 states, 32 states have (on average 51.21875) internal successors, (1639), 32 states have internal predecessors, (1639), 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 02:03:16,752 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:03:16,752 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 191 [2023-08-29 02:03:16,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:03:30,184 INFO L130 PetriNetUnfolder]: 12533/25179 cut-off events. [2023-08-29 02:03:30,184 INFO L131 PetriNetUnfolder]: For 196818/196818 co-relation queries the response was YES. [2023-08-29 02:03:30,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146251 conditions, 25179 events. 12533/25179 cut-off events. For 196818/196818 co-relation queries the response was YES. Maximal size of possible extension queue 384. Compared 195881 event pairs, 2155 based on Foata normal form. 20/24939 useless extension candidates. Maximal degree in co-relation 146134. Up to 11313 conditions per place. [2023-08-29 02:03:30,634 INFO L137 encePairwiseOnDemand]: 173/191 looper letters, 1056 selfloop transitions, 243 changer transitions 2/1301 dead transitions. [2023-08-29 02:03:30,634 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 1301 transitions, 17862 flow [2023-08-29 02:03:30,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-29 02:03:30,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-29 02:03:30,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1096 transitions. [2023-08-29 02:03:30,637 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3586387434554974 [2023-08-29 02:03:30,637 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1096 transitions. [2023-08-29 02:03:30,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1096 transitions. [2023-08-29 02:03:30,638 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:03:30,638 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1096 transitions. [2023-08-29 02:03:30,641 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 68.5) internal successors, (1096), 16 states have internal predecessors, (1096), 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 02:03:30,644 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 191.0) internal successors, (3247), 17 states have internal predecessors, (3247), 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 02:03:30,645 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 191.0) internal successors, (3247), 17 states have internal predecessors, (3247), 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 02:03:30,645 INFO L175 Difference]: Start difference. First operand has 214 places, 578 transitions, 7629 flow. Second operand 16 states and 1096 transitions. [2023-08-29 02:03:30,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 1301 transitions, 17862 flow [2023-08-29 02:03:31,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 1301 transitions, 17718 flow, removed 53 selfloop flow, removed 2 redundant places. [2023-08-29 02:03:31,939 INFO L231 Difference]: Finished difference. Result has 236 places, 691 transitions, 10485 flow [2023-08-29 02:03:31,940 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=7529, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=578, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=135, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=374, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=10485, PETRI_PLACES=236, PETRI_TRANSITIONS=691} [2023-08-29 02:03:31,941 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 180 predicate places. [2023-08-29 02:03:31,941 INFO L495 AbstractCegarLoop]: Abstraction has has 236 places, 691 transitions, 10485 flow [2023-08-29 02:03:31,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 51.21875) internal successors, (1639), 32 states have internal predecessors, (1639), 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 02:03:31,941 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:03:31,942 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:03:31,947 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-08-29 02:03:32,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-08-29 02:03:32,142 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-29 02:03:32,143 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:03:32,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1683454459, now seen corresponding path program 2 times [2023-08-29 02:03:32,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:03:32,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810863751] [2023-08-29 02:03:32,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:03:32,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:03:32,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:03:32,700 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:03:32,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:03:32,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810863751] [2023-08-29 02:03:32,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810863751] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 02:03:32,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [212600398] [2023-08-29 02:03:32,700 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-29 02:03:32,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:03:32,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:03:32,702 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 02:03:32,703 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-08-29 02:03:32,852 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-29 02:03:32,852 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-29 02:03:32,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 46 conjunts are in the unsatisfiable core [2023-08-29 02:03:32,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 02:03:33,095 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 02:03:33,135 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 02:03:33,192 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 0 case distinctions, treesize of input 26 treesize of output 28 [2023-08-29 02:03:33,237 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 0 case distinctions, treesize of input 33 treesize of output 38 [2023-08-29 02:03:33,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:03:33,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:03:33,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:03:33,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:03:33,349 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 48 [2023-08-29 02:03:33,390 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:03:33,390 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 02:03:41,531 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:03:41,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [212600398] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 02:03:41,532 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 02:03:41,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 30 [2023-08-29 02:03:41,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292792452] [2023-08-29 02:03:41,532 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 02:03:41,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-08-29 02:03:41,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:03:41,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-08-29 02:03:41,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=747, Unknown=2, NotChecked=0, Total=930 [2023-08-29 02:03:43,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:03:45,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:03:47,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:03:49,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:03:51,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:03:53,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:03:56,057 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:03:58,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:04:00,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:04:03,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:04:05,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:04:07,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:04:09,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:04:12,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:04:14,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:04:16,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:04:18,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:04:21,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:04:23,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:04:25,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:04:27,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:04:29,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:04:31,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:04:34,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:04:36,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:04:38,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:04:38,289 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 191 [2023-08-29 02:04:38,290 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 691 transitions, 10485 flow. Second operand has 31 states, 31 states have (on average 49.32258064516129) internal successors, (1529), 31 states have internal predecessors, (1529), 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 02:04:38,290 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:04:38,290 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 191 [2023-08-29 02:04:38,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:04:51,202 INFO L130 PetriNetUnfolder]: 16506/33147 cut-off events. [2023-08-29 02:04:51,202 INFO L131 PetriNetUnfolder]: For 295676/295676 co-relation queries the response was YES. [2023-08-29 02:04:51,688 INFO L83 FinitePrefix]: Finished finitePrefix Result has 197333 conditions, 33147 events. 16506/33147 cut-off events. For 295676/295676 co-relation queries the response was YES. Maximal size of possible extension queue 494. Compared 271729 event pairs, 3306 based on Foata normal form. 106/32860 useless extension candidates. Maximal degree in co-relation 197206. Up to 11696 conditions per place. [2023-08-29 02:04:51,813 INFO L137 encePairwiseOnDemand]: 162/191 looper letters, 1194 selfloop transitions, 286 changer transitions 16/1496 dead transitions. [2023-08-29 02:04:51,813 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 1496 transitions, 21367 flow [2023-08-29 02:04:51,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-29 02:04:51,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-29 02:04:51,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1171 transitions. [2023-08-29 02:04:51,815 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3831806282722513 [2023-08-29 02:04:51,816 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1171 transitions. [2023-08-29 02:04:51,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1171 transitions. [2023-08-29 02:04:51,816 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:04:51,816 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1171 transitions. [2023-08-29 02:04:51,818 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 73.1875) internal successors, (1171), 16 states have internal predecessors, (1171), 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 02:04:51,821 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 191.0) internal successors, (3247), 17 states have internal predecessors, (3247), 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 02:04:51,821 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 191.0) internal successors, (3247), 17 states have internal predecessors, (3247), 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 02:04:51,821 INFO L175 Difference]: Start difference. First operand has 236 places, 691 transitions, 10485 flow. Second operand 16 states and 1171 transitions. [2023-08-29 02:04:51,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 1496 transitions, 21367 flow [2023-08-29 02:04:54,307 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 1496 transitions, 21105 flow, removed 31 selfloop flow, removed 5 redundant places. [2023-08-29 02:04:54,323 INFO L231 Difference]: Finished difference. Result has 256 places, 841 transitions, 13777 flow [2023-08-29 02:04:54,324 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=10342, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=691, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=148, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=446, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=13777, PETRI_PLACES=256, PETRI_TRANSITIONS=841} [2023-08-29 02:04:54,324 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 200 predicate places. [2023-08-29 02:04:54,325 INFO L495 AbstractCegarLoop]: Abstraction has has 256 places, 841 transitions, 13777 flow [2023-08-29 02:04:54,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 49.32258064516129) internal successors, (1529), 31 states have internal predecessors, (1529), 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 02:04:54,325 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:04:54,325 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:04:54,334 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-08-29 02:04:54,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-08-29 02:04:54,532 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-29 02:04:54,532 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:04:54,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1668215551, now seen corresponding path program 3 times [2023-08-29 02:04:54,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:04:54,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365268116] [2023-08-29 02:04:54,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:04:54,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:04:54,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:04:55,512 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:04:55,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:04:55,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365268116] [2023-08-29 02:04:55,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365268116] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 02:04:55,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1123350618] [2023-08-29 02:04:55,513 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-29 02:04:55,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:04:55,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:04:55,514 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 02:04:55,515 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-08-29 02:04:55,663 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-08-29 02:04:55,663 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-29 02:04:55,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 49 conjunts are in the unsatisfiable core [2023-08-29 02:04:55,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 02:04:55,929 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 02:04:55,971 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 02:04:56,085 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 0 case distinctions, treesize of input 26 treesize of output 28 [2023-08-29 02:04:56,181 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 0 case distinctions, treesize of input 33 treesize of output 38 [2023-08-29 02:04:56,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:04:56,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:04:56,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:04:56,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:04:56,382 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 48 [2023-08-29 02:04:56,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:04:56,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:04:56,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:04:56,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:04:56,421 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 50 [2023-08-29 02:04:56,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:04:56,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:04:56,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:04:56,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:04:56,466 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 50 [2023-08-29 02:04:56,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:04:56,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:04:56,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:04:56,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:04:56,509 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 50 [2023-08-29 02:04:56,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:04:56,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:04:56,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:04:56,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:04:56,593 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 48 [2023-08-29 02:04:56,640 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:04:56,640 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 02:05:20,348 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:05:20,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1123350618] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 02:05:20,350 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 02:05:20,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 12] total 32 [2023-08-29 02:05:20,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051447510] [2023-08-29 02:05:20,350 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 02:05:20,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-08-29 02:05:20,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:05:20,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-08-29 02:05:20,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=870, Unknown=9, NotChecked=0, Total=1056 [2023-08-29 02:05:25,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:05:27,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:05:29,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:05:32,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:05:35,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:05:39,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:05:41,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:05:44,038 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:05:48,759 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:05:50,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:05:53,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:05:56,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:06:01,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:06:02,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:06:05,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:06:08,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:06:16,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:06:18,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:06:22,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:06:24,507 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:06:28,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:06:30,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:06:32,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:06:37,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:06:39,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:06:40,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:06:44,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:06:46,507 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:06:50,467 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:06:52,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:06:54,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:06:58,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:07:01,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:07:07,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:07:09,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:07:11,937 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:07:16,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:07:18,907 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:07:20,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:07:25,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:07:27,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:07:29,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:07:31,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:07:34,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:07:36,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:07:39,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:07:41,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:07:44,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:07:46,924 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 191 [2023-08-29 02:07:46,925 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 841 transitions, 13777 flow. Second operand has 33 states, 33 states have (on average 51.121212121212125) internal successors, (1687), 33 states have internal predecessors, (1687), 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 02:07:46,925 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:07:46,925 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 191 [2023-08-29 02:07:46,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:08:16,674 INFO L130 PetriNetUnfolder]: 24720/49674 cut-off events. [2023-08-29 02:08:16,674 INFO L131 PetriNetUnfolder]: For 520027/520027 co-relation queries the response was YES. [2023-08-29 02:08:17,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 310681 conditions, 49674 events. 24720/49674 cut-off events. For 520027/520027 co-relation queries the response was YES. Maximal size of possible extension queue 595. Compared 404122 event pairs, 5255 based on Foata normal form. 65/49136 useless extension candidates. Maximal degree in co-relation 310544. Up to 25024 conditions per place. [2023-08-29 02:08:17,869 INFO L137 encePairwiseOnDemand]: 172/191 looper letters, 2092 selfloop transitions, 466 changer transitions 0/2558 dead transitions. [2023-08-29 02:08:17,869 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 2558 transitions, 38592 flow [2023-08-29 02:08:17,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-08-29 02:08:17,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2023-08-29 02:08:17,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 2043 transitions. [2023-08-29 02:08:17,873 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36883914063910456 [2023-08-29 02:08:17,874 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 2043 transitions. [2023-08-29 02:08:17,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 2043 transitions. [2023-08-29 02:08:17,874 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:08:17,874 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 2043 transitions. [2023-08-29 02:08:17,877 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 70.44827586206897) internal successors, (2043), 29 states have internal predecessors, (2043), 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 02:08:17,883 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 191.0) internal successors, (5730), 30 states have internal predecessors, (5730), 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 02:08:17,884 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 191.0) internal successors, (5730), 30 states have internal predecessors, (5730), 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 02:08:17,884 INFO L175 Difference]: Start difference. First operand has 256 places, 841 transitions, 13777 flow. Second operand 29 states and 2043 transitions. [2023-08-29 02:08:17,884 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 2558 transitions, 38592 flow [2023-08-29 02:08:22,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 2558 transitions, 38112 flow, removed 173 selfloop flow, removed 4 redundant places. [2023-08-29 02:08:22,299 INFO L231 Difference]: Finished difference. Result has 301 places, 1136 transitions, 20912 flow [2023-08-29 02:08:22,299 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=13542, PETRI_DIFFERENCE_MINUEND_PLACES=252, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=841, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=196, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=551, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=20912, PETRI_PLACES=301, PETRI_TRANSITIONS=1136} [2023-08-29 02:08:22,300 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 245 predicate places. [2023-08-29 02:08:22,300 INFO L495 AbstractCegarLoop]: Abstraction has has 301 places, 1136 transitions, 20912 flow [2023-08-29 02:08:22,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 51.121212121212125) internal successors, (1687), 33 states have internal predecessors, (1687), 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 02:08:22,300 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:08:22,300 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:08:22,308 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-08-29 02:08:22,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-08-29 02:08:22,501 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-29 02:08:22,501 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:08:22,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1715520455, now seen corresponding path program 3 times [2023-08-29 02:08:22,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:08:22,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791776454] [2023-08-29 02:08:22,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:08:22,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:08:22,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:08:23,070 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:08:23,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:08:23,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791776454] [2023-08-29 02:08:23,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791776454] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 02:08:23,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1479230625] [2023-08-29 02:08:23,070 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-29 02:08:23,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:08:23,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:08:23,072 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 02:08:23,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-08-29 02:08:23,245 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-08-29 02:08:23,246 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-29 02:08:23,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 44 conjunts are in the unsatisfiable core [2023-08-29 02:08:23,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 02:08:23,513 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 02:08:23,546 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 02:08:23,596 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 0 case distinctions, treesize of input 26 treesize of output 28 [2023-08-29 02:08:23,648 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 0 case distinctions, treesize of input 33 treesize of output 38 [2023-08-29 02:08:23,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:08:23,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:08:23,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:08:23,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:08:23,760 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 48 [2023-08-29 02:08:23,792 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:08:23,792 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 02:08:35,324 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:08:35,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1479230625] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 02:08:35,324 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 02:08:35,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 31 [2023-08-29 02:08:35,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805833350] [2023-08-29 02:08:35,324 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 02:08:35,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-08-29 02:08:35,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:08:35,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-08-29 02:08:35,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=808, Unknown=2, NotChecked=0, Total=992 [2023-08-29 02:08:37,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:08:40,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:08:41,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:08:44,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:08:48,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:08:50,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:08:52,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:08:56,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:09:00,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:09:03,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:09:05,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:09:08,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:09:10,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:09:12,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:09:15,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:09:15,611 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 191 [2023-08-29 02:09:15,612 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 1136 transitions, 20912 flow. Second operand has 32 states, 32 states have (on average 49.21875) internal successors, (1575), 32 states have internal predecessors, (1575), 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 02:09:15,613 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:09:15,613 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 191 [2023-08-29 02:09:15,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:09:50,998 INFO L130 PetriNetUnfolder]: 38233/76777 cut-off events. [2023-08-29 02:09:50,998 INFO L131 PetriNetUnfolder]: For 868991/868991 co-relation queries the response was YES. [2023-08-29 02:09:52,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 499550 conditions, 76777 events. 38233/76777 cut-off events. For 868991/868991 co-relation queries the response was YES. Maximal size of possible extension queue 871. Compared 685724 event pairs, 7576 based on Foata normal form. 108/75742 useless extension candidates. Maximal degree in co-relation 499392. Up to 26145 conditions per place. [2023-08-29 02:09:53,236 INFO L137 encePairwiseOnDemand]: 161/191 looper letters, 2947 selfloop transitions, 839 changer transitions 34/3820 dead transitions. [2023-08-29 02:09:53,236 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 333 places, 3820 transitions, 60032 flow [2023-08-29 02:09:53,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-08-29 02:09:53,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2023-08-29 02:09:53,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 2530 transitions. [2023-08-29 02:09:53,239 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4013961605584642 [2023-08-29 02:09:53,239 INFO L72 ComplementDD]: Start complementDD. Operand 33 states and 2530 transitions. [2023-08-29 02:09:53,239 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 2530 transitions. [2023-08-29 02:09:53,240 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:09:53,240 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 33 states and 2530 transitions. [2023-08-29 02:09:53,243 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 34 states, 33 states have (on average 76.66666666666667) internal successors, (2530), 33 states have internal predecessors, (2530), 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 02:09:53,249 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 34 states, 34 states have (on average 191.0) internal successors, (6494), 34 states have internal predecessors, (6494), 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 02:09:53,250 INFO L81 ComplementDD]: Finished complementDD. Result has 34 states, 34 states have (on average 191.0) internal successors, (6494), 34 states have internal predecessors, (6494), 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 02:09:53,250 INFO L175 Difference]: Start difference. First operand has 301 places, 1136 transitions, 20912 flow. Second operand 33 states and 2530 transitions. [2023-08-29 02:09:53,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 333 places, 3820 transitions, 60032 flow [2023-08-29 02:10:06,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 3820 transitions, 59151 flow, removed 440 selfloop flow, removed 1 redundant places. [2023-08-29 02:10:06,944 INFO L231 Difference]: Finished difference. Result has 355 places, 1804 transitions, 35348 flow [2023-08-29 02:10:06,946 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=20365, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=253, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=647, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=35348, PETRI_PLACES=355, PETRI_TRANSITIONS=1804} [2023-08-29 02:10:06,946 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 299 predicate places. [2023-08-29 02:10:06,946 INFO L495 AbstractCegarLoop]: Abstraction has has 355 places, 1804 transitions, 35348 flow [2023-08-29 02:10:06,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 49.21875) internal successors, (1575), 32 states have internal predecessors, (1575), 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 02:10:06,947 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:10:06,947 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:10:06,954 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-08-29 02:10:07,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:10:07,153 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-29 02:10:07,153 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:10:07,153 INFO L85 PathProgramCache]: Analyzing trace with hash -2095055811, now seen corresponding path program 4 times [2023-08-29 02:10:07,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:10:07,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247267678] [2023-08-29 02:10:07,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:10:07,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:10:07,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:10:08,099 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:10:08,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:10:08,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247267678] [2023-08-29 02:10:08,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247267678] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 02:10:08,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1348824815] [2023-08-29 02:10:08,100 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-29 02:10:08,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:10:08,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:10:08,105 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 02:10:08,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-08-29 02:10:08,398 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-29 02:10:08,398 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-29 02:10:08,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 66 conjunts are in the unsatisfiable core [2023-08-29 02:10:08,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 02:10:08,667 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 02:10:08,703 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 02:10:08,753 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 0 case distinctions, treesize of input 26 treesize of output 28 [2023-08-29 02:10:08,795 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 0 case distinctions, treesize of input 33 treesize of output 38 [2023-08-29 02:10:08,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:08,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:08,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:08,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:08,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 48 [2023-08-29 02:10:08,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:08,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:08,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:08,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:08,934 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 50 [2023-08-29 02:10:08,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:08,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:08,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:08,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:08,963 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 50 [2023-08-29 02:10:08,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:08,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:08,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:08,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:08,996 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 50 [2023-08-29 02:10:09,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:09,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:09,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:09,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:09,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:09,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:09,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:09,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:09,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:09,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:09,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:09,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:09,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:09,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:09,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:09,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:10:09,197 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 84 [2023-08-29 02:10:17,276 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:10:17,276 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 02:10:35,491 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:10:35,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1348824815] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 02:10:35,491 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 02:10:35,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13, 15] total 37 [2023-08-29 02:10:35,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245528450] [2023-08-29 02:10:35,492 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 02:10:35,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-08-29 02:10:35,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:10:35,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-08-29 02:10:35,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=221, Invalid=1178, Unknown=7, NotChecked=0, Total=1406 [2023-08-29 02:10:38,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:10:41,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-29 02:10:44,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-29 02:10:45,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:10:47,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-29 02:10:49,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:10:52,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-29 02:10:55,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:11:00,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:11:02,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:11:05,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-29 02:11:08,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-29 02:11:11,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:11:14,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:11:16,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:11:19,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:11:21,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-29 02:11:24,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-29 02:11:26,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:11:28,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:11:30,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-29 02:11:33,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:11:38,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:11:40,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-29 02:11:42,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-29 02:11:45,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-29 02:11:47,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:11:49,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-29 02:11:49,741 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 191 [2023-08-29 02:11:49,742 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 355 places, 1804 transitions, 35348 flow. Second operand has 38 states, 38 states have (on average 50.71052631578947) internal successors, (1927), 38 states have internal predecessors, (1927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:11:49,742 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:11:49,742 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 191 [2023-08-29 02:11:49,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:11:59,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-29 02:12:01,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-29 02:12:04,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-29 02:12:06,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-29 02:12:08,252 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-29 02:12:13,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-29 02:12:16,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-29 02:12:19,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-29 02:12:23,149 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-29 02:12:25,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-29 02:12:28,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-29 02:13:22,184 INFO L130 PetriNetUnfolder]: 47797/96004 cut-off events. [2023-08-29 02:13:22,184 INFO L131 PetriNetUnfolder]: For 1466655/1466655 co-relation queries the response was YES. [2023-08-29 02:13:25,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 683618 conditions, 96004 events. 47797/96004 cut-off events. For 1466655/1466655 co-relation queries the response was YES. Maximal size of possible extension queue 1059. Compared 874211 event pairs, 10284 based on Foata normal form. 65/94716 useless extension candidates. Maximal degree in co-relation 683436. Up to 34788 conditions per place. [2023-08-29 02:13:25,433 INFO L137 encePairwiseOnDemand]: 171/191 looper letters, 3107 selfloop transitions, 965 changer transitions 2/4074 dead transitions. [2023-08-29 02:13:25,433 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 386 places, 4074 transitions, 77180 flow [2023-08-29 02:13:25,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-08-29 02:13:25,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2023-08-29 02:13:25,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 2223 transitions. [2023-08-29 02:13:25,436 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3637107329842932 [2023-08-29 02:13:25,436 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 2223 transitions. [2023-08-29 02:13:25,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 2223 transitions. [2023-08-29 02:13:25,436 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:13:25,436 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 2223 transitions. [2023-08-29 02:13:25,439 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 69.46875) internal successors, (2223), 32 states have internal predecessors, (2223), 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 02:13:25,445 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 191.0) internal successors, (6303), 33 states have internal predecessors, (6303), 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 02:13:25,445 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 191.0) internal successors, (6303), 33 states have internal predecessors, (6303), 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 02:13:25,446 INFO L175 Difference]: Start difference. First operand has 355 places, 1804 transitions, 35348 flow. Second operand 32 states and 2223 transitions. [2023-08-29 02:13:25,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 386 places, 4074 transitions, 77180 flow [2023-08-29 02:13:47,719 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 381 places, 4074 transitions, 75734 flow, removed 388 selfloop flow, removed 5 redundant places. [2023-08-29 02:13:47,768 INFO L231 Difference]: Finished difference. Result has 403 places, 2284 transitions, 49484 flow [2023-08-29 02:13:47,770 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=34561, PETRI_DIFFERENCE_MINUEND_PLACES=350, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1804, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=510, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=49484, PETRI_PLACES=403, PETRI_TRANSITIONS=2284} [2023-08-29 02:13:47,770 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 347 predicate places. [2023-08-29 02:13:47,770 INFO L495 AbstractCegarLoop]: Abstraction has has 403 places, 2284 transitions, 49484 flow [2023-08-29 02:13:47,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 50.71052631578947) internal successors, (1927), 38 states have internal predecessors, (1927), 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 02:13:47,771 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:13:47,771 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:13:47,780 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-08-29 02:13:47,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:13:47,980 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-29 02:13:47,981 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:13:47,981 INFO L85 PathProgramCache]: Analyzing trace with hash -2019197861, now seen corresponding path program 4 times [2023-08-29 02:13:47,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:13:47,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738934650] [2023-08-29 02:13:47,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:13:47,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:13:48,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:13:48,465 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:13:48,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:13:48,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738934650] [2023-08-29 02:13:48,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738934650] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 02:13:48,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1023329874] [2023-08-29 02:13:48,465 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-29 02:13:48,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:13:48,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:13:48,466 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 02:13:48,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-08-29 02:13:48,764 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-29 02:13:48,765 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-29 02:13:48,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 46 conjunts are in the unsatisfiable core [2023-08-29 02:13:48,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 02:13:49,036 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 02:13:49,071 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 02:13:49,107 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 0 case distinctions, treesize of input 26 treesize of output 28 [2023-08-29 02:13:49,151 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 0 case distinctions, treesize of input 33 treesize of output 38 [2023-08-29 02:13:49,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:13:49,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:13:49,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:13:49,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-29 02:13:49,266 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 48 [2023-08-29 02:13:49,297 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:13:49,297 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 02:13:55,612 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:13:55,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1023329874] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 02:13:55,612 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 02:13:55,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 31 [2023-08-29 02:13:55,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50630890] [2023-08-29 02:13:55,612 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 02:13:55,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-08-29 02:13:55,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:13:55,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-08-29 02:13:55,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=814, Unknown=1, NotChecked=0, Total=992 [2023-08-29 02:13:57,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:13:59,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:14:02,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:14:04,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:14:06,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:14:08,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:14:10,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-29 02:14:13,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] Killed by 15