./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/36-apron_21-traces-cluster-based_true.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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/36-apron_21-traces-cluster-based_true.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cec155e54548239c459fec40910e358deb5fad2ceffa658bfdeefddd1bc9e166 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 00:36:50,508 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 00:36:50,510 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 00:36:50,553 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 00:36:50,554 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 00:36:50,557 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 00:36:50,558 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 00:36:50,561 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 00:36:50,563 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 00:36:50,567 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 00:36:50,568 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 00:36:50,570 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 00:36:50,570 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 00:36:50,572 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 00:36:50,573 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 00:36:50,578 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 00:36:50,579 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 00:36:50,581 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 00:36:50,582 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 00:36:50,586 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 00:36:50,593 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 00:36:50,594 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 00:36:50,595 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 00:36:50,596 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 00:36:50,602 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 00:36:50,603 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 00:36:50,603 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 00:36:50,605 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 00:36:50,605 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 00:36:50,606 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 00:36:50,606 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 00:36:50,608 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 00:36:50,610 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 00:36:50,610 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 00:36:50,611 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 00:36:50,611 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 00:36:50,612 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 00:36:50,612 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 00:36:50,612 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 00:36:50,613 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 00:36:50,613 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 00:36:50,615 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-31 00:36:50,651 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 00:36:50,652 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 00:36:50,653 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 00:36:50,653 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 00:36:50,654 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 00:36:50,654 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 00:36:50,655 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 00:36:50,655 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 00:36:50,655 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 00:36:50,655 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 00:36:50,656 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 00:36:50,656 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 00:36:50,657 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 00:36:50,657 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 00:36:50,657 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 00:36:50,657 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 00:36:50,657 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 00:36:50,657 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 00:36:50,658 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 00:36:50,658 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 00:36:50,658 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 00:36:50,658 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 00:36:50,658 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 00:36:50,659 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 00:36:50,659 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 00:36:50,659 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 00:36:50,659 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 00:36:50,659 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 00:36:50,660 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 00:36:50,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 00:36:50,660 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 00:36:50,660 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 00:36:50,661 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 00:36:50,661 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 00:36:50,661 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 00:36:50,661 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cec155e54548239c459fec40910e358deb5fad2ceffa658bfdeefddd1bc9e166 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-31 00:36:50,952 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 00:36:50,976 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 00:36:50,978 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 00:36:50,980 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 00:36:50,980 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 00:36:50,982 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_21-traces-cluster-based_true.i [2023-08-31 00:36:52,197 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 00:36:52,492 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 00:36:52,492 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_21-traces-cluster-based_true.i [2023-08-31 00:36:52,504 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c1fcd004/8752e2744e72437581399c5975f510e7/FLAG96d6df20d [2023-08-31 00:36:52,517 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c1fcd004/8752e2744e72437581399c5975f510e7 [2023-08-31 00:36:52,519 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 00:36:52,520 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 00:36:52,521 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 00:36:52,522 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 00:36:52,525 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 00:36:52,526 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 12:36:52" (1/1) ... [2023-08-31 00:36:52,526 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dbb5df2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:36:52, skipping insertion in model container [2023-08-31 00:36:52,526 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 12:36:52" (1/1) ... [2023-08-31 00:36:52,531 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 00:36:52,568 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 00:36:52,739 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_21-traces-cluster-based_true.i[1092,1105] [2023-08-31 00:36:52,915 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 00:36:52,932 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 00:36:52,945 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_21-traces-cluster-based_true.i[1092,1105] [2023-08-31 00:36:52,984 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 00:36:53,033 INFO L208 MainTranslator]: Completed translation [2023-08-31 00:36:53,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:36:53 WrapperNode [2023-08-31 00:36:53,034 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 00:36:53,035 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 00:36:53,035 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 00:36:53,035 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 00:36:53,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:36:53" (1/1) ... [2023-08-31 00:36:53,069 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:36:53" (1/1) ... [2023-08-31 00:36:53,100 INFO L138 Inliner]: procedures = 165, calls = 45, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 135 [2023-08-31 00:36:53,100 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 00:36:53,101 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 00:36:53,101 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 00:36:53,102 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 00:36:53,109 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:36:53" (1/1) ... [2023-08-31 00:36:53,109 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:36:53" (1/1) ... [2023-08-31 00:36:53,125 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:36:53" (1/1) ... [2023-08-31 00:36:53,126 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:36:53" (1/1) ... [2023-08-31 00:36:53,130 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:36:53" (1/1) ... [2023-08-31 00:36:53,136 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:36:53" (1/1) ... [2023-08-31 00:36:53,142 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:36:53" (1/1) ... [2023-08-31 00:36:53,149 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:36:53" (1/1) ... [2023-08-31 00:36:53,152 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 00:36:53,153 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 00:36:53,153 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 00:36:53,153 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 00:36:53,156 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:36:53" (1/1) ... [2023-08-31 00:36:53,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 00:36:53,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 00:36:53,186 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) [2023-08-31 00:36:53,207 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 [2023-08-31 00:36:53,224 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-08-31 00:36:53,224 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-08-31 00:36:53,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 00:36:53,225 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-31 00:36:53,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 00:36:53,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 00:36:53,225 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2023-08-31 00:36:53,225 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2023-08-31 00:36:53,225 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-31 00:36:53,226 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-31 00:36:53,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 00:36:53,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 00:36:53,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 00:36:53,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 00:36:53,227 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 00:36:53,340 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 00:36:53,342 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 00:36:53,612 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 00:36:53,620 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 00:36:53,620 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-31 00:36:53,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 12:36:53 BoogieIcfgContainer [2023-08-31 00:36:53,622 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 00:36:53,624 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 00:36:53,624 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 00:36:53,627 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 00:36:53,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 12:36:52" (1/3) ... [2023-08-31 00:36:53,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bb1f7e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 12:36:53, skipping insertion in model container [2023-08-31 00:36:53,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:36:53" (2/3) ... [2023-08-31 00:36:53,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bb1f7e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 12:36:53, skipping insertion in model container [2023-08-31 00:36:53,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 12:36:53" (3/3) ... [2023-08-31 00:36:53,629 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_21-traces-cluster-based_true.i [2023-08-31 00:36:53,636 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 00:36:53,644 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 00:36:53,645 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-31 00:36:53,645 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 00:36:53,778 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-31 00:36:53,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 167 places, 162 transitions, 339 flow [2023-08-31 00:36:53,870 INFO L130 PetriNetUnfolder]: 5/159 cut-off events. [2023-08-31 00:36:53,871 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 00:36:53,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 169 conditions, 159 events. 5/159 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 261 event pairs, 0 based on Foata normal form. 0/150 useless extension candidates. Maximal degree in co-relation 123. Up to 2 conditions per place. [2023-08-31 00:36:53,877 INFO L82 GeneralOperation]: Start removeDead. Operand has 167 places, 162 transitions, 339 flow [2023-08-31 00:36:53,881 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 164 places, 159 transitions, 327 flow [2023-08-31 00:36:53,884 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 00:36:53,892 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 164 places, 159 transitions, 327 flow [2023-08-31 00:36:53,894 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 164 places, 159 transitions, 327 flow [2023-08-31 00:36:53,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 164 places, 159 transitions, 327 flow [2023-08-31 00:36:53,929 INFO L130 PetriNetUnfolder]: 5/159 cut-off events. [2023-08-31 00:36:53,930 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 00:36:53,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 169 conditions, 159 events. 5/159 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 261 event pairs, 0 based on Foata normal form. 0/150 useless extension candidates. Maximal degree in co-relation 123. Up to 2 conditions per place. [2023-08-31 00:36:53,942 INFO L119 LiptonReduction]: Number of co-enabled transitions 9270 [2023-08-31 00:36:58,592 INFO L134 LiptonReduction]: Checked pairs total: 20940 [2023-08-31 00:36:58,592 INFO L136 LiptonReduction]: Total number of compositions: 151 [2023-08-31 00:36:58,605 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 00:36:58,610 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;@3224b217, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 00:36:58,611 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-08-31 00:36:58,617 INFO L130 PetriNetUnfolder]: 0/19 cut-off events. [2023-08-31 00:36:58,618 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 00:36:58,618 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:36:58,619 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 00:36:58,619 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2023-08-31 00:36:58,623 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:36:58,624 INFO L85 PathProgramCache]: Analyzing trace with hash -227316659, now seen corresponding path program 1 times [2023-08-31 00:36:58,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:36:58,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753818320] [2023-08-31 00:36:58,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:36:58,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:36:58,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:36:59,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 00:36:59,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 00:36:59,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753818320] [2023-08-31 00:36:59,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753818320] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 00:36:59,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 00:36:59,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 00:36:59,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800014891] [2023-08-31 00:36:59,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 00:36:59,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-31 00:36:59,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 00:36:59,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-31 00:36:59,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-31 00:36:59,184 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 313 [2023-08-31 00:36:59,187 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 87 flow. Second operand has 5 states, 5 states have (on average 143.6) internal successors, (718), 5 states have internal predecessors, (718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:36:59,188 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 00:36:59,188 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 313 [2023-08-31 00:36:59,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 00:36:59,910 INFO L130 PetriNetUnfolder]: 3823/5993 cut-off events. [2023-08-31 00:36:59,910 INFO L131 PetriNetUnfolder]: For 46/46 co-relation queries the response was YES. [2023-08-31 00:36:59,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11607 conditions, 5993 events. 3823/5993 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 438. Compared 41345 event pairs, 735 based on Foata normal form. 225/4746 useless extension candidates. Maximal degree in co-relation 11596. Up to 2475 conditions per place. [2023-08-31 00:36:59,949 INFO L137 encePairwiseOnDemand]: 305/313 looper letters, 109 selfloop transitions, 10 changer transitions 0/130 dead transitions. [2023-08-31 00:36:59,949 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 130 transitions, 528 flow [2023-08-31 00:36:59,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-31 00:36:59,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-31 00:36:59,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1265 transitions. [2023-08-31 00:36:59,965 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5051916932907349 [2023-08-31 00:36:59,965 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1265 transitions. [2023-08-31 00:36:59,966 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1265 transitions. [2023-08-31 00:36:59,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 00:36:59,971 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1265 transitions. [2023-08-31 00:36:59,975 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 158.125) internal successors, (1265), 8 states have internal predecessors, (1265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:36:59,983 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 313.0) internal successors, (2817), 9 states have internal predecessors, (2817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:36:59,984 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 313.0) internal successors, (2817), 9 states have internal predecessors, (2817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:36:59,986 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 87 flow. Second operand 8 states and 1265 transitions. [2023-08-31 00:36:59,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 130 transitions, 528 flow [2023-08-31 00:36:59,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 130 transitions, 518 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-31 00:36:59,992 INFO L231 Difference]: Finished difference. Result has 57 places, 46 transitions, 151 flow [2023-08-31 00:36:59,994 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=151, PETRI_PLACES=57, PETRI_TRANSITIONS=46} [2023-08-31 00:37:00,000 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, 10 predicate places. [2023-08-31 00:37:00,000 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 46 transitions, 151 flow [2023-08-31 00:37:00,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 143.6) internal successors, (718), 5 states have internal predecessors, (718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:37:00,001 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:37:00,001 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 00:37:00,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 00:37:00,002 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2023-08-31 00:37:00,002 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:37:00,002 INFO L85 PathProgramCache]: Analyzing trace with hash 195691478, now seen corresponding path program 1 times [2023-08-31 00:37:00,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:37:00,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415886597] [2023-08-31 00:37:00,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:37:00,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:37:00,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:37:00,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 00:37:00,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 00:37:00,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415886597] [2023-08-31 00:37:00,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415886597] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 00:37:00,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 00:37:00,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 00:37:00,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796985953] [2023-08-31 00:37:00,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 00:37:00,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-31 00:37:00,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 00:37:00,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-31 00:37:00,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-31 00:37:00,288 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 313 [2023-08-31 00:37:00,289 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 46 transitions, 151 flow. Second operand has 5 states, 5 states have (on average 143.0) internal successors, (715), 5 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:37:00,289 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 00:37:00,289 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 313 [2023-08-31 00:37:00,289 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 00:37:01,104 INFO L130 PetriNetUnfolder]: 4107/6760 cut-off events. [2023-08-31 00:37:01,104 INFO L131 PetriNetUnfolder]: For 5111/5549 co-relation queries the response was YES. [2023-08-31 00:37:01,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16373 conditions, 6760 events. 4107/6760 cut-off events. For 5111/5549 co-relation queries the response was YES. Maximal size of possible extension queue 500. Compared 48515 event pairs, 758 based on Foata normal form. 96/5874 useless extension candidates. Maximal degree in co-relation 16357. Up to 2699 conditions per place. [2023-08-31 00:37:01,149 INFO L137 encePairwiseOnDemand]: 305/313 looper letters, 90 selfloop transitions, 20 changer transitions 0/124 dead transitions. [2023-08-31 00:37:01,150 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 124 transitions, 631 flow [2023-08-31 00:37:01,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-31 00:37:01,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-31 00:37:01,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1226 transitions. [2023-08-31 00:37:01,153 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48961661341853036 [2023-08-31 00:37:01,153 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1226 transitions. [2023-08-31 00:37:01,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1226 transitions. [2023-08-31 00:37:01,155 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 00:37:01,155 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1226 transitions. [2023-08-31 00:37:01,161 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 153.25) internal successors, (1226), 8 states have internal predecessors, (1226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:37:01,165 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 313.0) internal successors, (2817), 9 states have internal predecessors, (2817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:37:01,166 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 313.0) internal successors, (2817), 9 states have internal predecessors, (2817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:37:01,166 INFO L175 Difference]: Start difference. First operand has 57 places, 46 transitions, 151 flow. Second operand 8 states and 1226 transitions. [2023-08-31 00:37:01,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 124 transitions, 631 flow [2023-08-31 00:37:01,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 124 transitions, 631 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 00:37:01,220 INFO L231 Difference]: Finished difference. Result has 69 places, 61 transitions, 326 flow [2023-08-31 00:37:01,220 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=326, PETRI_PLACES=69, PETRI_TRANSITIONS=61} [2023-08-31 00:37:01,221 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, 22 predicate places. [2023-08-31 00:37:01,221 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 61 transitions, 326 flow [2023-08-31 00:37:01,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 143.0) internal successors, (715), 5 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:37:01,222 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:37:01,222 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 00:37:01,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 00:37:01,222 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2023-08-31 00:37:01,223 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:37:01,223 INFO L85 PathProgramCache]: Analyzing trace with hash 442248688, now seen corresponding path program 1 times [2023-08-31 00:37:01,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:37:01,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235154361] [2023-08-31 00:37:01,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:37:01,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:37:01,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:37:01,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 00:37:01,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 00:37:01,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235154361] [2023-08-31 00:37:01,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235154361] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 00:37:01,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 00:37:01,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 00:37:01,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177547535] [2023-08-31 00:37:01,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 00:37:01,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 00:37:01,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 00:37:01,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 00:37:01,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 00:37:01,323 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 313 [2023-08-31 00:37:01,323 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 61 transitions, 326 flow. Second operand has 3 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:37:01,324 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 00:37:01,324 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 313 [2023-08-31 00:37:01,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 00:37:01,840 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([410] L693-->L694: Formula: (= |v_#pthreadsMutex_25| (store |v_#pthreadsMutex_26| |v_~#A~0.base_14| (store (select |v_#pthreadsMutex_26| |v_~#A~0.base_14|) |v_~#A~0.offset_14| 0))) InVars {#pthreadsMutex=|v_#pthreadsMutex_26|, ~#A~0.offset=|v_~#A~0.offset_14|, ~#A~0.base=|v_~#A~0.base_14|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_25|, ~#A~0.offset=|v_~#A~0.offset_14|, ~#A~0.base=|v_~#A~0.base_14|} AuxVars[] AssignedVars[#pthreadsMutex][64], [161#t2_funEXITtrue, t2_funThread1of1ForFork2InUse, t_funThread1of1ForFork1InUse, Black: 190#(and (<= ~g~0 ~h~0) (<= ~h~0 ~g~0)), t3_funThread1of1ForFork0InUse, 192#(and (< |ULTIMATE.start_main_~y~2#1| (+ |ULTIMATE.start_main_~x~3#1| 1)) (<= |ULTIMATE.start_main_~x~3#1| |ULTIMATE.start_main_~y~2#1|)), Black: 191#(and (<= |ULTIMATE.start_main_~x~3#1| ~h~0) (<= ~h~0 |ULTIMATE.start_main_~x~3#1|)), 50#L736true, Black: 198#(and (<= |ULTIMATE.start_main_~x~3#1| ~h~0) (<= ~h~0 |ULTIMATE.start_main_~x~3#1|) (< |ULTIMATE.start_main_~y~2#1| (+ |ULTIMATE.start_main_~x~3#1| 1)) (<= |ULTIMATE.start_main_~x~3#1| |ULTIMATE.start_main_~y~2#1|)), Black: 196#(and (<= |ULTIMATE.start_main_~x~3#1| ~h~0) (<= ~g~0 ~h~0) (<= ~h~0 ~g~0) (<= ~h~0 |ULTIMATE.start_main_~x~3#1|) (< |ULTIMATE.start_main_~y~2#1| (+ |ULTIMATE.start_main_~x~3#1| 1)) (<= |ULTIMATE.start_main_~x~3#1| |ULTIMATE.start_main_~y~2#1|)), Black: 188#true, 174#(<= |t2_funThread1of1ForFork2_~y~0#1| |t2_funThread1of1ForFork2_~x~1#1|), 57#t3_funEXITtrue, 17#L694true, Black: 170#true, Black: 172#(<= ~h~0 ~g~0), Black: 180#(and (<= |t2_funThread1of1ForFork2_~y~0#1| |t2_funThread1of1ForFork2_~x~1#1|) (<= ~h~0 |t2_funThread1of1ForFork2_~x~1#1|)), Black: 173#(<= ~h~0 |t2_funThread1of1ForFork2_~x~1#1|), 206#true, Black: 178#(and (<= |t2_funThread1of1ForFork2_~y~0#1| |t2_funThread1of1ForFork2_~x~1#1|) (<= ~h~0 |t2_funThread1of1ForFork2_~x~1#1|) (<= ~h~0 ~g~0))]) [2023-08-31 00:37:01,841 INFO L383 tUnfolder$Statistics]: this new event has 26 ancestors and is cut-off event [2023-08-31 00:37:01,841 INFO L386 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2023-08-31 00:37:01,841 INFO L386 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2023-08-31 00:37:01,841 INFO L386 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2023-08-31 00:37:01,842 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([410] L693-->L694: Formula: (= |v_#pthreadsMutex_25| (store |v_#pthreadsMutex_26| |v_~#A~0.base_14| (store (select |v_#pthreadsMutex_26| |v_~#A~0.base_14|) |v_~#A~0.offset_14| 0))) InVars {#pthreadsMutex=|v_#pthreadsMutex_26|, ~#A~0.offset=|v_~#A~0.offset_14|, ~#A~0.base=|v_~#A~0.base_14|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_25|, ~#A~0.offset=|v_~#A~0.offset_14|, ~#A~0.base=|v_~#A~0.base_14|} AuxVars[] AssignedVars[#pthreadsMutex][64], [161#t2_funEXITtrue, t2_funThread1of1ForFork2InUse, t_funThread1of1ForFork1InUse, Black: 190#(and (<= ~g~0 ~h~0) (<= ~h~0 ~g~0)), t3_funThread1of1ForFork0InUse, 192#(and (< |ULTIMATE.start_main_~y~2#1| (+ |ULTIMATE.start_main_~x~3#1| 1)) (<= |ULTIMATE.start_main_~x~3#1| |ULTIMATE.start_main_~y~2#1|)), Black: 191#(and (<= |ULTIMATE.start_main_~x~3#1| ~h~0) (<= ~h~0 |ULTIMATE.start_main_~x~3#1|)), 50#L736true, Black: 198#(and (<= |ULTIMATE.start_main_~x~3#1| ~h~0) (<= ~h~0 |ULTIMATE.start_main_~x~3#1|) (< |ULTIMATE.start_main_~y~2#1| (+ |ULTIMATE.start_main_~x~3#1| 1)) (<= |ULTIMATE.start_main_~x~3#1| |ULTIMATE.start_main_~y~2#1|)), Black: 196#(and (<= |ULTIMATE.start_main_~x~3#1| ~h~0) (<= ~g~0 ~h~0) (<= ~h~0 ~g~0) (<= ~h~0 |ULTIMATE.start_main_~x~3#1|) (< |ULTIMATE.start_main_~y~2#1| (+ |ULTIMATE.start_main_~x~3#1| 1)) (<= |ULTIMATE.start_main_~x~3#1| |ULTIMATE.start_main_~y~2#1|)), Black: 188#true, 174#(<= |t2_funThread1of1ForFork2_~y~0#1| |t2_funThread1of1ForFork2_~x~1#1|), 17#L694true, Black: 170#true, Black: 172#(<= ~h~0 ~g~0), Black: 180#(and (<= |t2_funThread1of1ForFork2_~y~0#1| |t2_funThread1of1ForFork2_~x~1#1|) (<= ~h~0 |t2_funThread1of1ForFork2_~x~1#1|)), Black: 173#(<= ~h~0 |t2_funThread1of1ForFork2_~x~1#1|), 206#true, Black: 178#(and (<= |t2_funThread1of1ForFork2_~y~0#1| |t2_funThread1of1ForFork2_~x~1#1|) (<= ~h~0 |t2_funThread1of1ForFork2_~x~1#1|) (<= ~h~0 ~g~0)), 68#t3_funErr0ASSERT_VIOLATIONERROR_FUNCTIONtrue]) [2023-08-31 00:37:01,842 INFO L383 tUnfolder$Statistics]: this new event has 26 ancestors and is cut-off event [2023-08-31 00:37:01,842 INFO L386 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2023-08-31 00:37:01,842 INFO L386 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2023-08-31 00:37:01,843 INFO L386 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2023-08-31 00:37:01,890 INFO L381 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([410] L693-->L694: Formula: (= |v_#pthreadsMutex_25| (store |v_#pthreadsMutex_26| |v_~#A~0.base_14| (store (select |v_#pthreadsMutex_26| |v_~#A~0.base_14|) |v_~#A~0.offset_14| 0))) InVars {#pthreadsMutex=|v_#pthreadsMutex_26|, ~#A~0.offset=|v_~#A~0.offset_14|, ~#A~0.base=|v_~#A~0.base_14|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_25|, ~#A~0.offset=|v_~#A~0.offset_14|, ~#A~0.base=|v_~#A~0.base_14|} AuxVars[] AssignedVars[#pthreadsMutex][64], [161#t2_funEXITtrue, t2_funThread1of1ForFork2InUse, t_funThread1of1ForFork1InUse, Black: 190#(and (<= ~g~0 ~h~0) (<= ~h~0 ~g~0)), t3_funThread1of1ForFork0InUse, 192#(and (< |ULTIMATE.start_main_~y~2#1| (+ |ULTIMATE.start_main_~x~3#1| 1)) (<= |ULTIMATE.start_main_~x~3#1| |ULTIMATE.start_main_~y~2#1|)), Black: 191#(and (<= |ULTIMATE.start_main_~x~3#1| ~h~0) (<= ~h~0 |ULTIMATE.start_main_~x~3#1|)), 50#L736true, Black: 198#(and (<= |ULTIMATE.start_main_~x~3#1| ~h~0) (<= ~h~0 |ULTIMATE.start_main_~x~3#1|) (< |ULTIMATE.start_main_~y~2#1| (+ |ULTIMATE.start_main_~x~3#1| 1)) (<= |ULTIMATE.start_main_~x~3#1| |ULTIMATE.start_main_~y~2#1|)), Black: 196#(and (<= |ULTIMATE.start_main_~x~3#1| ~h~0) (<= ~g~0 ~h~0) (<= ~h~0 ~g~0) (<= ~h~0 |ULTIMATE.start_main_~x~3#1|) (< |ULTIMATE.start_main_~y~2#1| (+ |ULTIMATE.start_main_~x~3#1| 1)) (<= |ULTIMATE.start_main_~x~3#1| |ULTIMATE.start_main_~y~2#1|)), 174#(<= |t2_funThread1of1ForFork2_~y~0#1| |t2_funThread1of1ForFork2_~x~1#1|), Black: 188#true, 57#t3_funEXITtrue, 17#L694true, Black: 170#true, Black: 172#(<= ~h~0 ~g~0), Black: 180#(and (<= |t2_funThread1of1ForFork2_~y~0#1| |t2_funThread1of1ForFork2_~x~1#1|) (<= ~h~0 |t2_funThread1of1ForFork2_~x~1#1|)), Black: 173#(<= ~h~0 |t2_funThread1of1ForFork2_~x~1#1|), 206#true, Black: 178#(and (<= |t2_funThread1of1ForFork2_~y~0#1| |t2_funThread1of1ForFork2_~x~1#1|) (<= ~h~0 |t2_funThread1of1ForFork2_~x~1#1|) (<= ~h~0 ~g~0))]) [2023-08-31 00:37:01,891 INFO L383 tUnfolder$Statistics]: this new event has 26 ancestors and is cut-off event [2023-08-31 00:37:01,891 INFO L386 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2023-08-31 00:37:01,891 INFO L386 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2023-08-31 00:37:01,891 INFO L386 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2023-08-31 00:37:01,891 INFO L386 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2023-08-31 00:37:01,892 INFO L381 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([410] L693-->L694: Formula: (= |v_#pthreadsMutex_25| (store |v_#pthreadsMutex_26| |v_~#A~0.base_14| (store (select |v_#pthreadsMutex_26| |v_~#A~0.base_14|) |v_~#A~0.offset_14| 0))) InVars {#pthreadsMutex=|v_#pthreadsMutex_26|, ~#A~0.offset=|v_~#A~0.offset_14|, ~#A~0.base=|v_~#A~0.base_14|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_25|, ~#A~0.offset=|v_~#A~0.offset_14|, ~#A~0.base=|v_~#A~0.base_14|} AuxVars[] AssignedVars[#pthreadsMutex][64], [t2_funThread1of1ForFork2InUse, 161#t2_funEXITtrue, t_funThread1of1ForFork1InUse, Black: 190#(and (<= ~g~0 ~h~0) (<= ~h~0 ~g~0)), t3_funThread1of1ForFork0InUse, 192#(and (< |ULTIMATE.start_main_~y~2#1| (+ |ULTIMATE.start_main_~x~3#1| 1)) (<= |ULTIMATE.start_main_~x~3#1| |ULTIMATE.start_main_~y~2#1|)), Black: 191#(and (<= |ULTIMATE.start_main_~x~3#1| ~h~0) (<= ~h~0 |ULTIMATE.start_main_~x~3#1|)), 50#L736true, Black: 198#(and (<= |ULTIMATE.start_main_~x~3#1| ~h~0) (<= ~h~0 |ULTIMATE.start_main_~x~3#1|) (< |ULTIMATE.start_main_~y~2#1| (+ |ULTIMATE.start_main_~x~3#1| 1)) (<= |ULTIMATE.start_main_~x~3#1| |ULTIMATE.start_main_~y~2#1|)), Black: 196#(and (<= |ULTIMATE.start_main_~x~3#1| ~h~0) (<= ~g~0 ~h~0) (<= ~h~0 ~g~0) (<= ~h~0 |ULTIMATE.start_main_~x~3#1|) (< |ULTIMATE.start_main_~y~2#1| (+ |ULTIMATE.start_main_~x~3#1| 1)) (<= |ULTIMATE.start_main_~x~3#1| |ULTIMATE.start_main_~y~2#1|)), Black: 188#true, 174#(<= |t2_funThread1of1ForFork2_~y~0#1| |t2_funThread1of1ForFork2_~x~1#1|), 17#L694true, Black: 170#true, Black: 172#(<= ~h~0 ~g~0), Black: 180#(and (<= |t2_funThread1of1ForFork2_~y~0#1| |t2_funThread1of1ForFork2_~x~1#1|) (<= ~h~0 |t2_funThread1of1ForFork2_~x~1#1|)), Black: 173#(<= ~h~0 |t2_funThread1of1ForFork2_~x~1#1|), 206#true, Black: 178#(and (<= |t2_funThread1of1ForFork2_~y~0#1| |t2_funThread1of1ForFork2_~x~1#1|) (<= ~h~0 |t2_funThread1of1ForFork2_~x~1#1|) (<= ~h~0 ~g~0)), 68#t3_funErr0ASSERT_VIOLATIONERROR_FUNCTIONtrue]) [2023-08-31 00:37:01,892 INFO L383 tUnfolder$Statistics]: this new event has 26 ancestors and is cut-off event [2023-08-31 00:37:01,892 INFO L386 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2023-08-31 00:37:01,892 INFO L386 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2023-08-31 00:37:01,892 INFO L386 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2023-08-31 00:37:01,893 INFO L386 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2023-08-31 00:37:01,896 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([410] L693-->L694: Formula: (= |v_#pthreadsMutex_25| (store |v_#pthreadsMutex_26| |v_~#A~0.base_14| (store (select |v_#pthreadsMutex_26| |v_~#A~0.base_14|) |v_~#A~0.offset_14| 0))) InVars {#pthreadsMutex=|v_#pthreadsMutex_26|, ~#A~0.offset=|v_~#A~0.offset_14|, ~#A~0.base=|v_~#A~0.base_14|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_25|, ~#A~0.offset=|v_~#A~0.offset_14|, ~#A~0.base=|v_~#A~0.base_14|} AuxVars[] AssignedVars[#pthreadsMutex][64], [161#t2_funEXITtrue, t2_funThread1of1ForFork2InUse, t_funThread1of1ForFork1InUse, Black: 190#(and (<= ~g~0 ~h~0) (<= ~h~0 ~g~0)), t3_funThread1of1ForFork0InUse, 192#(and (< |ULTIMATE.start_main_~y~2#1| (+ |ULTIMATE.start_main_~x~3#1| 1)) (<= |ULTIMATE.start_main_~x~3#1| |ULTIMATE.start_main_~y~2#1|)), Black: 191#(and (<= |ULTIMATE.start_main_~x~3#1| ~h~0) (<= ~h~0 |ULTIMATE.start_main_~x~3#1|)), Black: 198#(and (<= |ULTIMATE.start_main_~x~3#1| ~h~0) (<= ~h~0 |ULTIMATE.start_main_~x~3#1|) (< |ULTIMATE.start_main_~y~2#1| (+ |ULTIMATE.start_main_~x~3#1| 1)) (<= |ULTIMATE.start_main_~x~3#1| |ULTIMATE.start_main_~y~2#1|)), Black: 196#(and (<= |ULTIMATE.start_main_~x~3#1| ~h~0) (<= ~g~0 ~h~0) (<= ~h~0 ~g~0) (<= ~h~0 |ULTIMATE.start_main_~x~3#1|) (< |ULTIMATE.start_main_~y~2#1| (+ |ULTIMATE.start_main_~x~3#1| 1)) (<= |ULTIMATE.start_main_~x~3#1| |ULTIMATE.start_main_~y~2#1|)), Black: 188#true, 174#(<= |t2_funThread1of1ForFork2_~y~0#1| |t2_funThread1of1ForFork2_~x~1#1|), 57#t3_funEXITtrue, 17#L694true, 34#L737true, Black: 170#true, Black: 172#(<= ~h~0 ~g~0), Black: 180#(and (<= |t2_funThread1of1ForFork2_~y~0#1| |t2_funThread1of1ForFork2_~x~1#1|) (<= ~h~0 |t2_funThread1of1ForFork2_~x~1#1|)), Black: 173#(<= ~h~0 |t2_funThread1of1ForFork2_~x~1#1|), 206#true, Black: 178#(and (<= |t2_funThread1of1ForFork2_~y~0#1| |t2_funThread1of1ForFork2_~x~1#1|) (<= ~h~0 |t2_funThread1of1ForFork2_~x~1#1|) (<= ~h~0 ~g~0))]) [2023-08-31 00:37:01,897 INFO L383 tUnfolder$Statistics]: this new event has 27 ancestors and is cut-off event [2023-08-31 00:37:01,897 INFO L386 tUnfolder$Statistics]: existing Event has 27 ancestors and is cut-off event [2023-08-31 00:37:01,897 INFO L386 tUnfolder$Statistics]: existing Event has 27 ancestors and is cut-off event [2023-08-31 00:37:01,897 INFO L386 tUnfolder$Statistics]: existing Event has 27 ancestors and is cut-off event [2023-08-31 00:37:01,898 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([410] L693-->L694: Formula: (= |v_#pthreadsMutex_25| (store |v_#pthreadsMutex_26| |v_~#A~0.base_14| (store (select |v_#pthreadsMutex_26| |v_~#A~0.base_14|) |v_~#A~0.offset_14| 0))) InVars {#pthreadsMutex=|v_#pthreadsMutex_26|, ~#A~0.offset=|v_~#A~0.offset_14|, ~#A~0.base=|v_~#A~0.base_14|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_25|, ~#A~0.offset=|v_~#A~0.offset_14|, ~#A~0.base=|v_~#A~0.base_14|} AuxVars[] AssignedVars[#pthreadsMutex][64], [161#t2_funEXITtrue, t2_funThread1of1ForFork2InUse, t_funThread1of1ForFork1InUse, Black: 190#(and (<= ~g~0 ~h~0) (<= ~h~0 ~g~0)), t3_funThread1of1ForFork0InUse, 192#(and (< |ULTIMATE.start_main_~y~2#1| (+ |ULTIMATE.start_main_~x~3#1| 1)) (<= |ULTIMATE.start_main_~x~3#1| |ULTIMATE.start_main_~y~2#1|)), Black: 191#(and (<= |ULTIMATE.start_main_~x~3#1| ~h~0) (<= ~h~0 |ULTIMATE.start_main_~x~3#1|)), Black: 198#(and (<= |ULTIMATE.start_main_~x~3#1| ~h~0) (<= ~h~0 |ULTIMATE.start_main_~x~3#1|) (< |ULTIMATE.start_main_~y~2#1| (+ |ULTIMATE.start_main_~x~3#1| 1)) (<= |ULTIMATE.start_main_~x~3#1| |ULTIMATE.start_main_~y~2#1|)), Black: 196#(and (<= |ULTIMATE.start_main_~x~3#1| ~h~0) (<= ~g~0 ~h~0) (<= ~h~0 ~g~0) (<= ~h~0 |ULTIMATE.start_main_~x~3#1|) (< |ULTIMATE.start_main_~y~2#1| (+ |ULTIMATE.start_main_~x~3#1| 1)) (<= |ULTIMATE.start_main_~x~3#1| |ULTIMATE.start_main_~y~2#1|)), Black: 188#true, 174#(<= |t2_funThread1of1ForFork2_~y~0#1| |t2_funThread1of1ForFork2_~x~1#1|), 17#L694true, 34#L737true, Black: 170#true, Black: 172#(<= ~h~0 ~g~0), Black: 180#(and (<= |t2_funThread1of1ForFork2_~y~0#1| |t2_funThread1of1ForFork2_~x~1#1|) (<= ~h~0 |t2_funThread1of1ForFork2_~x~1#1|)), Black: 173#(<= ~h~0 |t2_funThread1of1ForFork2_~x~1#1|), 206#true, Black: 178#(and (<= |t2_funThread1of1ForFork2_~y~0#1| |t2_funThread1of1ForFork2_~x~1#1|) (<= ~h~0 |t2_funThread1of1ForFork2_~x~1#1|) (<= ~h~0 ~g~0)), 68#t3_funErr0ASSERT_VIOLATIONERROR_FUNCTIONtrue]) [2023-08-31 00:37:01,898 INFO L383 tUnfolder$Statistics]: this new event has 27 ancestors and is cut-off event [2023-08-31 00:37:01,898 INFO L386 tUnfolder$Statistics]: existing Event has 27 ancestors and is cut-off event [2023-08-31 00:37:01,898 INFO L386 tUnfolder$Statistics]: existing Event has 27 ancestors and is cut-off event [2023-08-31 00:37:01,898 INFO L386 tUnfolder$Statistics]: existing Event has 27 ancestors and is cut-off event [2023-08-31 00:37:01,940 INFO L381 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([410] L693-->L694: Formula: (= |v_#pthreadsMutex_25| (store |v_#pthreadsMutex_26| |v_~#A~0.base_14| (store (select |v_#pthreadsMutex_26| |v_~#A~0.base_14|) |v_~#A~0.offset_14| 0))) InVars {#pthreadsMutex=|v_#pthreadsMutex_26|, ~#A~0.offset=|v_~#A~0.offset_14|, ~#A~0.base=|v_~#A~0.base_14|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_25|, ~#A~0.offset=|v_~#A~0.offset_14|, ~#A~0.base=|v_~#A~0.base_14|} AuxVars[] AssignedVars[#pthreadsMutex][64], [161#t2_funEXITtrue, t2_funThread1of1ForFork2InUse, t_funThread1of1ForFork1InUse, Black: 190#(and (<= ~g~0 ~h~0) (<= ~h~0 ~g~0)), t3_funThread1of1ForFork0InUse, 192#(and (< |ULTIMATE.start_main_~y~2#1| (+ |ULTIMATE.start_main_~x~3#1| 1)) (<= |ULTIMATE.start_main_~x~3#1| |ULTIMATE.start_main_~y~2#1|)), Black: 191#(and (<= |ULTIMATE.start_main_~x~3#1| ~h~0) (<= ~h~0 |ULTIMATE.start_main_~x~3#1|)), Black: 198#(and (<= |ULTIMATE.start_main_~x~3#1| ~h~0) (<= ~h~0 |ULTIMATE.start_main_~x~3#1|) (< |ULTIMATE.start_main_~y~2#1| (+ |ULTIMATE.start_main_~x~3#1| 1)) (<= |ULTIMATE.start_main_~x~3#1| |ULTIMATE.start_main_~y~2#1|)), Black: 196#(and (<= |ULTIMATE.start_main_~x~3#1| ~h~0) (<= ~g~0 ~h~0) (<= ~h~0 ~g~0) (<= ~h~0 |ULTIMATE.start_main_~x~3#1|) (< |ULTIMATE.start_main_~y~2#1| (+ |ULTIMATE.start_main_~x~3#1| 1)) (<= |ULTIMATE.start_main_~x~3#1| |ULTIMATE.start_main_~y~2#1|)), Black: 188#true, 174#(<= |t2_funThread1of1ForFork2_~y~0#1| |t2_funThread1of1ForFork2_~x~1#1|), 57#t3_funEXITtrue, 17#L694true, 34#L737true, Black: 170#true, Black: 172#(<= ~h~0 ~g~0), Black: 180#(and (<= |t2_funThread1of1ForFork2_~y~0#1| |t2_funThread1of1ForFork2_~x~1#1|) (<= ~h~0 |t2_funThread1of1ForFork2_~x~1#1|)), Black: 173#(<= ~h~0 |t2_funThread1of1ForFork2_~x~1#1|), 206#true, Black: 178#(and (<= |t2_funThread1of1ForFork2_~y~0#1| |t2_funThread1of1ForFork2_~x~1#1|) (<= ~h~0 |t2_funThread1of1ForFork2_~x~1#1|) (<= ~h~0 ~g~0))]) [2023-08-31 00:37:01,940 INFO L383 tUnfolder$Statistics]: this new event has 27 ancestors and is cut-off event [2023-08-31 00:37:01,940 INFO L386 tUnfolder$Statistics]: existing Event has 27 ancestors and is cut-off event [2023-08-31 00:37:01,940 INFO L386 tUnfolder$Statistics]: existing Event has 27 ancestors and is cut-off event [2023-08-31 00:37:01,941 INFO L386 tUnfolder$Statistics]: existing Event has 27 ancestors and is cut-off event [2023-08-31 00:37:01,941 INFO L386 tUnfolder$Statistics]: existing Event has 27 ancestors and is cut-off event [2023-08-31 00:37:01,941 INFO L381 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([410] L693-->L694: Formula: (= |v_#pthreadsMutex_25| (store |v_#pthreadsMutex_26| |v_~#A~0.base_14| (store (select |v_#pthreadsMutex_26| |v_~#A~0.base_14|) |v_~#A~0.offset_14| 0))) InVars {#pthreadsMutex=|v_#pthreadsMutex_26|, ~#A~0.offset=|v_~#A~0.offset_14|, ~#A~0.base=|v_~#A~0.base_14|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_25|, ~#A~0.offset=|v_~#A~0.offset_14|, ~#A~0.base=|v_~#A~0.base_14|} AuxVars[] AssignedVars[#pthreadsMutex][64], [t2_funThread1of1ForFork2InUse, 161#t2_funEXITtrue, t_funThread1of1ForFork1InUse, Black: 190#(and (<= ~g~0 ~h~0) (<= ~h~0 ~g~0)), t3_funThread1of1ForFork0InUse, 192#(and (< |ULTIMATE.start_main_~y~2#1| (+ |ULTIMATE.start_main_~x~3#1| 1)) (<= |ULTIMATE.start_main_~x~3#1| |ULTIMATE.start_main_~y~2#1|)), Black: 191#(and (<= |ULTIMATE.start_main_~x~3#1| ~h~0) (<= ~h~0 |ULTIMATE.start_main_~x~3#1|)), Black: 198#(and (<= |ULTIMATE.start_main_~x~3#1| ~h~0) (<= ~h~0 |ULTIMATE.start_main_~x~3#1|) (< |ULTIMATE.start_main_~y~2#1| (+ |ULTIMATE.start_main_~x~3#1| 1)) (<= |ULTIMATE.start_main_~x~3#1| |ULTIMATE.start_main_~y~2#1|)), Black: 196#(and (<= |ULTIMATE.start_main_~x~3#1| ~h~0) (<= ~g~0 ~h~0) (<= ~h~0 ~g~0) (<= ~h~0 |ULTIMATE.start_main_~x~3#1|) (< |ULTIMATE.start_main_~y~2#1| (+ |ULTIMATE.start_main_~x~3#1| 1)) (<= |ULTIMATE.start_main_~x~3#1| |ULTIMATE.start_main_~y~2#1|)), Black: 188#true, 174#(<= |t2_funThread1of1ForFork2_~y~0#1| |t2_funThread1of1ForFork2_~x~1#1|), 17#L694true, 34#L737true, Black: 170#true, Black: 172#(<= ~h~0 ~g~0), Black: 180#(and (<= |t2_funThread1of1ForFork2_~y~0#1| |t2_funThread1of1ForFork2_~x~1#1|) (<= ~h~0 |t2_funThread1of1ForFork2_~x~1#1|)), Black: 173#(<= ~h~0 |t2_funThread1of1ForFork2_~x~1#1|), 206#true, Black: 178#(and (<= |t2_funThread1of1ForFork2_~y~0#1| |t2_funThread1of1ForFork2_~x~1#1|) (<= ~h~0 |t2_funThread1of1ForFork2_~x~1#1|) (<= ~h~0 ~g~0)), 68#t3_funErr0ASSERT_VIOLATIONERROR_FUNCTIONtrue]) [2023-08-31 00:37:01,941 INFO L383 tUnfolder$Statistics]: this new event has 27 ancestors and is cut-off event [2023-08-31 00:37:01,942 INFO L386 tUnfolder$Statistics]: existing Event has 27 ancestors and is cut-off event [2023-08-31 00:37:01,942 INFO L386 tUnfolder$Statistics]: existing Event has 27 ancestors and is cut-off event [2023-08-31 00:37:01,942 INFO L386 tUnfolder$Statistics]: existing Event has 27 ancestors and is cut-off event [2023-08-31 00:37:01,942 INFO L386 tUnfolder$Statistics]: existing Event has 27 ancestors and is cut-off event [2023-08-31 00:37:01,946 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([410] L693-->L694: Formula: (= |v_#pthreadsMutex_25| (store |v_#pthreadsMutex_26| |v_~#A~0.base_14| (store (select |v_#pthreadsMutex_26| |v_~#A~0.base_14|) |v_~#A~0.offset_14| 0))) InVars {#pthreadsMutex=|v_#pthreadsMutex_26|, ~#A~0.offset=|v_~#A~0.offset_14|, ~#A~0.base=|v_~#A~0.base_14|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_25|, ~#A~0.offset=|v_~#A~0.offset_14|, ~#A~0.base=|v_~#A~0.base_14|} AuxVars[] AssignedVars[#pthreadsMutex][64], [161#t2_funEXITtrue, t2_funThread1of1ForFork2InUse, 2#ULTIMATE.startEXITtrue, t_funThread1of1ForFork1InUse, Black: 190#(and (<= ~g~0 ~h~0) (<= ~h~0 ~g~0)), t3_funThread1of1ForFork0InUse, 192#(and (< |ULTIMATE.start_main_~y~2#1| (+ |ULTIMATE.start_main_~x~3#1| 1)) (<= |ULTIMATE.start_main_~x~3#1| |ULTIMATE.start_main_~y~2#1|)), Black: 191#(and (<= |ULTIMATE.start_main_~x~3#1| ~h~0) (<= ~h~0 |ULTIMATE.start_main_~x~3#1|)), Black: 198#(and (<= |ULTIMATE.start_main_~x~3#1| ~h~0) (<= ~h~0 |ULTIMATE.start_main_~x~3#1|) (< |ULTIMATE.start_main_~y~2#1| (+ |ULTIMATE.start_main_~x~3#1| 1)) (<= |ULTIMATE.start_main_~x~3#1| |ULTIMATE.start_main_~y~2#1|)), Black: 196#(and (<= |ULTIMATE.start_main_~x~3#1| ~h~0) (<= ~g~0 ~h~0) (<= ~h~0 ~g~0) (<= ~h~0 |ULTIMATE.start_main_~x~3#1|) (< |ULTIMATE.start_main_~y~2#1| (+ |ULTIMATE.start_main_~x~3#1| 1)) (<= |ULTIMATE.start_main_~x~3#1| |ULTIMATE.start_main_~y~2#1|)), Black: 188#true, 174#(<= |t2_funThread1of1ForFork2_~y~0#1| |t2_funThread1of1ForFork2_~x~1#1|), 57#t3_funEXITtrue, 17#L694true, Black: 170#true, Black: 172#(<= ~h~0 ~g~0), Black: 180#(and (<= |t2_funThread1of1ForFork2_~y~0#1| |t2_funThread1of1ForFork2_~x~1#1|) (<= ~h~0 |t2_funThread1of1ForFork2_~x~1#1|)), Black: 173#(<= ~h~0 |t2_funThread1of1ForFork2_~x~1#1|), 206#true, Black: 178#(and (<= |t2_funThread1of1ForFork2_~y~0#1| |t2_funThread1of1ForFork2_~x~1#1|) (<= ~h~0 |t2_funThread1of1ForFork2_~x~1#1|) (<= ~h~0 ~g~0))]) [2023-08-31 00:37:01,947 INFO L383 tUnfolder$Statistics]: this new event has 28 ancestors and is cut-off event [2023-08-31 00:37:01,947 INFO L386 tUnfolder$Statistics]: existing Event has 28 ancestors and is cut-off event [2023-08-31 00:37:01,947 INFO L386 tUnfolder$Statistics]: existing Event has 28 ancestors and is cut-off event [2023-08-31 00:37:01,947 INFO L386 tUnfolder$Statistics]: existing Event has 28 ancestors and is cut-off event [2023-08-31 00:37:01,947 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([410] L693-->L694: Formula: (= |v_#pthreadsMutex_25| (store |v_#pthreadsMutex_26| |v_~#A~0.base_14| (store (select |v_#pthreadsMutex_26| |v_~#A~0.base_14|) |v_~#A~0.offset_14| 0))) InVars {#pthreadsMutex=|v_#pthreadsMutex_26|, ~#A~0.offset=|v_~#A~0.offset_14|, ~#A~0.base=|v_~#A~0.base_14|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_25|, ~#A~0.offset=|v_~#A~0.offset_14|, ~#A~0.base=|v_~#A~0.base_14|} AuxVars[] AssignedVars[#pthreadsMutex][64], [161#t2_funEXITtrue, t2_funThread1of1ForFork2InUse, 2#ULTIMATE.startEXITtrue, t_funThread1of1ForFork1InUse, Black: 190#(and (<= ~g~0 ~h~0) (<= ~h~0 ~g~0)), t3_funThread1of1ForFork0InUse, 192#(and (< |ULTIMATE.start_main_~y~2#1| (+ |ULTIMATE.start_main_~x~3#1| 1)) (<= |ULTIMATE.start_main_~x~3#1| |ULTIMATE.start_main_~y~2#1|)), Black: 191#(and (<= |ULTIMATE.start_main_~x~3#1| ~h~0) (<= ~h~0 |ULTIMATE.start_main_~x~3#1|)), Black: 198#(and (<= |ULTIMATE.start_main_~x~3#1| ~h~0) (<= ~h~0 |ULTIMATE.start_main_~x~3#1|) (< |ULTIMATE.start_main_~y~2#1| (+ |ULTIMATE.start_main_~x~3#1| 1)) (<= |ULTIMATE.start_main_~x~3#1| |ULTIMATE.start_main_~y~2#1|)), Black: 196#(and (<= |ULTIMATE.start_main_~x~3#1| ~h~0) (<= ~g~0 ~h~0) (<= ~h~0 ~g~0) (<= ~h~0 |ULTIMATE.start_main_~x~3#1|) (< |ULTIMATE.start_main_~y~2#1| (+ |ULTIMATE.start_main_~x~3#1| 1)) (<= |ULTIMATE.start_main_~x~3#1| |ULTIMATE.start_main_~y~2#1|)), Black: 188#true, 174#(<= |t2_funThread1of1ForFork2_~y~0#1| |t2_funThread1of1ForFork2_~x~1#1|), 17#L694true, Black: 170#true, Black: 172#(<= ~h~0 ~g~0), Black: 180#(and (<= |t2_funThread1of1ForFork2_~y~0#1| |t2_funThread1of1ForFork2_~x~1#1|) (<= ~h~0 |t2_funThread1of1ForFork2_~x~1#1|)), Black: 173#(<= ~h~0 |t2_funThread1of1ForFork2_~x~1#1|), 206#true, Black: 178#(and (<= |t2_funThread1of1ForFork2_~y~0#1| |t2_funThread1of1ForFork2_~x~1#1|) (<= ~h~0 |t2_funThread1of1ForFork2_~x~1#1|) (<= ~h~0 ~g~0)), 68#t3_funErr0ASSERT_VIOLATIONERROR_FUNCTIONtrue]) [2023-08-31 00:37:01,948 INFO L383 tUnfolder$Statistics]: this new event has 28 ancestors and is cut-off event [2023-08-31 00:37:01,948 INFO L386 tUnfolder$Statistics]: existing Event has 28 ancestors and is cut-off event [2023-08-31 00:37:01,948 INFO L386 tUnfolder$Statistics]: existing Event has 28 ancestors and is cut-off event [2023-08-31 00:37:01,948 INFO L386 tUnfolder$Statistics]: existing Event has 28 ancestors and is cut-off event [2023-08-31 00:37:01,986 INFO L381 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([410] L693-->L694: Formula: (= |v_#pthreadsMutex_25| (store |v_#pthreadsMutex_26| |v_~#A~0.base_14| (store (select |v_#pthreadsMutex_26| |v_~#A~0.base_14|) |v_~#A~0.offset_14| 0))) InVars {#pthreadsMutex=|v_#pthreadsMutex_26|, ~#A~0.offset=|v_~#A~0.offset_14|, ~#A~0.base=|v_~#A~0.base_14|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_25|, ~#A~0.offset=|v_~#A~0.offset_14|, ~#A~0.base=|v_~#A~0.base_14|} AuxVars[] AssignedVars[#pthreadsMutex][64], [161#t2_funEXITtrue, t2_funThread1of1ForFork2InUse, 2#ULTIMATE.startEXITtrue, t_funThread1of1ForFork1InUse, Black: 190#(and (<= ~g~0 ~h~0) (<= ~h~0 ~g~0)), t3_funThread1of1ForFork0InUse, 192#(and (< |ULTIMATE.start_main_~y~2#1| (+ |ULTIMATE.start_main_~x~3#1| 1)) (<= |ULTIMATE.start_main_~x~3#1| |ULTIMATE.start_main_~y~2#1|)), Black: 191#(and (<= |ULTIMATE.start_main_~x~3#1| ~h~0) (<= ~h~0 |ULTIMATE.start_main_~x~3#1|)), Black: 198#(and (<= |ULTIMATE.start_main_~x~3#1| ~h~0) (<= ~h~0 |ULTIMATE.start_main_~x~3#1|) (< |ULTIMATE.start_main_~y~2#1| (+ |ULTIMATE.start_main_~x~3#1| 1)) (<= |ULTIMATE.start_main_~x~3#1| |ULTIMATE.start_main_~y~2#1|)), Black: 196#(and (<= |ULTIMATE.start_main_~x~3#1| ~h~0) (<= ~g~0 ~h~0) (<= ~h~0 ~g~0) (<= ~h~0 |ULTIMATE.start_main_~x~3#1|) (< |ULTIMATE.start_main_~y~2#1| (+ |ULTIMATE.start_main_~x~3#1| 1)) (<= |ULTIMATE.start_main_~x~3#1| |ULTIMATE.start_main_~y~2#1|)), Black: 188#true, 174#(<= |t2_funThread1of1ForFork2_~y~0#1| |t2_funThread1of1ForFork2_~x~1#1|), 57#t3_funEXITtrue, 17#L694true, Black: 170#true, Black: 172#(<= ~h~0 ~g~0), Black: 180#(and (<= |t2_funThread1of1ForFork2_~y~0#1| |t2_funThread1of1ForFork2_~x~1#1|) (<= ~h~0 |t2_funThread1of1ForFork2_~x~1#1|)), Black: 173#(<= ~h~0 |t2_funThread1of1ForFork2_~x~1#1|), 206#true, Black: 178#(and (<= |t2_funThread1of1ForFork2_~y~0#1| |t2_funThread1of1ForFork2_~x~1#1|) (<= ~h~0 |t2_funThread1of1ForFork2_~x~1#1|) (<= ~h~0 ~g~0))]) [2023-08-31 00:37:01,987 INFO L383 tUnfolder$Statistics]: this new event has 28 ancestors and is cut-off event [2023-08-31 00:37:01,987 INFO L386 tUnfolder$Statistics]: existing Event has 28 ancestors and is cut-off event [2023-08-31 00:37:01,987 INFO L386 tUnfolder$Statistics]: existing Event has 28 ancestors and is cut-off event [2023-08-31 00:37:01,987 INFO L386 tUnfolder$Statistics]: existing Event has 28 ancestors and is cut-off event [2023-08-31 00:37:01,987 INFO L386 tUnfolder$Statistics]: existing Event has 28 ancestors and is cut-off event [2023-08-31 00:37:01,988 INFO L381 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([410] L693-->L694: Formula: (= |v_#pthreadsMutex_25| (store |v_#pthreadsMutex_26| |v_~#A~0.base_14| (store (select |v_#pthreadsMutex_26| |v_~#A~0.base_14|) |v_~#A~0.offset_14| 0))) InVars {#pthreadsMutex=|v_#pthreadsMutex_26|, ~#A~0.offset=|v_~#A~0.offset_14|, ~#A~0.base=|v_~#A~0.base_14|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_25|, ~#A~0.offset=|v_~#A~0.offset_14|, ~#A~0.base=|v_~#A~0.base_14|} AuxVars[] AssignedVars[#pthreadsMutex][64], [t2_funThread1of1ForFork2InUse, 161#t2_funEXITtrue, 2#ULTIMATE.startEXITtrue, t_funThread1of1ForFork1InUse, Black: 190#(and (<= ~g~0 ~h~0) (<= ~h~0 ~g~0)), t3_funThread1of1ForFork0InUse, 192#(and (< |ULTIMATE.start_main_~y~2#1| (+ |ULTIMATE.start_main_~x~3#1| 1)) (<= |ULTIMATE.start_main_~x~3#1| |ULTIMATE.start_main_~y~2#1|)), Black: 191#(and (<= |ULTIMATE.start_main_~x~3#1| ~h~0) (<= ~h~0 |ULTIMATE.start_main_~x~3#1|)), Black: 198#(and (<= |ULTIMATE.start_main_~x~3#1| ~h~0) (<= ~h~0 |ULTIMATE.start_main_~x~3#1|) (< |ULTIMATE.start_main_~y~2#1| (+ |ULTIMATE.start_main_~x~3#1| 1)) (<= |ULTIMATE.start_main_~x~3#1| |ULTIMATE.start_main_~y~2#1|)), Black: 196#(and (<= |ULTIMATE.start_main_~x~3#1| ~h~0) (<= ~g~0 ~h~0) (<= ~h~0 ~g~0) (<= ~h~0 |ULTIMATE.start_main_~x~3#1|) (< |ULTIMATE.start_main_~y~2#1| (+ |ULTIMATE.start_main_~x~3#1| 1)) (<= |ULTIMATE.start_main_~x~3#1| |ULTIMATE.start_main_~y~2#1|)), Black: 188#true, 174#(<= |t2_funThread1of1ForFork2_~y~0#1| |t2_funThread1of1ForFork2_~x~1#1|), 17#L694true, Black: 170#true, Black: 172#(<= ~h~0 ~g~0), Black: 180#(and (<= |t2_funThread1of1ForFork2_~y~0#1| |t2_funThread1of1ForFork2_~x~1#1|) (<= ~h~0 |t2_funThread1of1ForFork2_~x~1#1|)), Black: 173#(<= ~h~0 |t2_funThread1of1ForFork2_~x~1#1|), 206#true, Black: 178#(and (<= |t2_funThread1of1ForFork2_~y~0#1| |t2_funThread1of1ForFork2_~x~1#1|) (<= ~h~0 |t2_funThread1of1ForFork2_~x~1#1|) (<= ~h~0 ~g~0)), 68#t3_funErr0ASSERT_VIOLATIONERROR_FUNCTIONtrue]) [2023-08-31 00:37:01,988 INFO L383 tUnfolder$Statistics]: this new event has 28 ancestors and is cut-off event [2023-08-31 00:37:01,988 INFO L386 tUnfolder$Statistics]: existing Event has 28 ancestors and is cut-off event [2023-08-31 00:37:01,988 INFO L386 tUnfolder$Statistics]: existing Event has 28 ancestors and is cut-off event [2023-08-31 00:37:01,988 INFO L386 tUnfolder$Statistics]: existing Event has 28 ancestors and is cut-off event [2023-08-31 00:37:01,989 INFO L386 tUnfolder$Statistics]: existing Event has 28 ancestors and is cut-off event [2023-08-31 00:37:02,055 INFO L130 PetriNetUnfolder]: 3637/6796 cut-off events. [2023-08-31 00:37:02,056 INFO L131 PetriNetUnfolder]: For 6478/6790 co-relation queries the response was YES. [2023-08-31 00:37:02,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17685 conditions, 6796 events. 3637/6796 cut-off events. For 6478/6790 co-relation queries the response was YES. Maximal size of possible extension queue 399. Compared 51709 event pairs, 1607 based on Foata normal form. 792/7002 useless extension candidates. Maximal degree in co-relation 17661. Up to 3854 conditions per place. [2023-08-31 00:37:02,104 INFO L137 encePairwiseOnDemand]: 298/313 looper letters, 52 selfloop transitions, 16 changer transitions 0/88 dead transitions. [2023-08-31 00:37:02,105 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 88 transitions, 569 flow [2023-08-31 00:37:02,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 00:37:02,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 00:37:02,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 469 transitions. [2023-08-31 00:37:02,107 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4994675186368477 [2023-08-31 00:37:02,107 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 469 transitions. [2023-08-31 00:37:02,108 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 469 transitions. [2023-08-31 00:37:02,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 00:37:02,108 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 469 transitions. [2023-08-31 00:37:02,110 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:37:02,112 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 313.0) internal successors, (1252), 4 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:37:02,112 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 313.0) internal successors, (1252), 4 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:37:02,112 INFO L175 Difference]: Start difference. First operand has 69 places, 61 transitions, 326 flow. Second operand 3 states and 469 transitions. [2023-08-31 00:37:02,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 88 transitions, 569 flow [2023-08-31 00:37:02,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 88 transitions, 565 flow, removed 2 selfloop flow, removed 0 redundant places. [2023-08-31 00:37:02,160 INFO L231 Difference]: Finished difference. Result has 72 places, 70 transitions, 408 flow [2023-08-31 00:37:02,160 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=408, PETRI_PLACES=72, PETRI_TRANSITIONS=70} [2023-08-31 00:37:02,161 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, 25 predicate places. [2023-08-31 00:37:02,161 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 70 transitions, 408 flow [2023-08-31 00:37:02,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:37:02,162 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:37:02,162 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 00:37:02,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 00:37:02,163 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2023-08-31 00:37:02,163 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:37:02,163 INFO L85 PathProgramCache]: Analyzing trace with hash 799830391, now seen corresponding path program 1 times [2023-08-31 00:37:02,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:37:02,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669284867] [2023-08-31 00:37:02,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:37:02,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:37:02,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:37:02,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 00:37:02,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 00:37:02,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669284867] [2023-08-31 00:37:02,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669284867] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 00:37:02,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 00:37:02,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 00:37:02,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895660342] [2023-08-31 00:37:02,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 00:37:02,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-31 00:37:02,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 00:37:02,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-31 00:37:02,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-31 00:37:02,384 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 313 [2023-08-31 00:37:02,385 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 70 transitions, 408 flow. Second operand has 5 states, 5 states have (on average 144.2) internal successors, (721), 5 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:37:02,386 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 00:37:02,386 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 313 [2023-08-31 00:37:02,386 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 00:37:03,125 INFO L130 PetriNetUnfolder]: 3658/6680 cut-off events. [2023-08-31 00:37:03,126 INFO L131 PetriNetUnfolder]: For 11033/11609 co-relation queries the response was YES. [2023-08-31 00:37:03,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22095 conditions, 6680 events. 3658/6680 cut-off events. For 11033/11609 co-relation queries the response was YES. Maximal size of possible extension queue 386. Compared 49624 event pairs, 1203 based on Foata normal form. 112/6261 useless extension candidates. Maximal degree in co-relation 22069. Up to 2978 conditions per place. [2023-08-31 00:37:03,174 INFO L137 encePairwiseOnDemand]: 306/313 looper letters, 93 selfloop transitions, 31 changer transitions 5/151 dead transitions. [2023-08-31 00:37:03,175 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 151 transitions, 1136 flow [2023-08-31 00:37:03,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-31 00:37:03,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-31 00:37:03,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1220 transitions. [2023-08-31 00:37:03,178 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48722044728434505 [2023-08-31 00:37:03,178 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1220 transitions. [2023-08-31 00:37:03,179 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1220 transitions. [2023-08-31 00:37:03,180 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 00:37:03,180 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1220 transitions. [2023-08-31 00:37:03,183 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 152.5) internal successors, (1220), 8 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:37:03,188 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 313.0) internal successors, (2817), 9 states have internal predecessors, (2817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:37:03,188 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 313.0) internal successors, (2817), 9 states have internal predecessors, (2817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:37:03,188 INFO L175 Difference]: Start difference. First operand has 72 places, 70 transitions, 408 flow. Second operand 8 states and 1220 transitions. [2023-08-31 00:37:03,189 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 151 transitions, 1136 flow [2023-08-31 00:37:03,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 151 transitions, 1097 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 00:37:03,244 INFO L231 Difference]: Finished difference. Result has 84 places, 89 transitions, 697 flow [2023-08-31 00:37:03,245 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=392, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=697, PETRI_PLACES=84, PETRI_TRANSITIONS=89} [2023-08-31 00:37:03,246 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, 37 predicate places. [2023-08-31 00:37:03,247 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 89 transitions, 697 flow [2023-08-31 00:37:03,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 144.2) internal successors, (721), 5 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:37:03,247 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:37:03,247 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 00:37:03,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 00:37:03,248 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2023-08-31 00:37:03,248 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:37:03,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1015979257, now seen corresponding path program 1 times [2023-08-31 00:37:03,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:37:03,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122819775] [2023-08-31 00:37:03,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:37:03,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:37:03,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:37:03,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 00:37:03,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 00:37:03,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122819775] [2023-08-31 00:37:03,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122819775] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 00:37:03,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 00:37:03,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 00:37:03,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558367653] [2023-08-31 00:37:03,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 00:37:03,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 00:37:03,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 00:37:03,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 00:37:03,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-08-31 00:37:03,405 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 313 [2023-08-31 00:37:03,407 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 89 transitions, 697 flow. Second operand has 6 states, 6 states have (on average 142.83333333333334) internal successors, (857), 6 states have internal predecessors, (857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:37:03,407 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 00:37:03,407 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 313 [2023-08-31 00:37:03,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 00:37:04,560 INFO L130 PetriNetUnfolder]: 4694/8615 cut-off events. [2023-08-31 00:37:04,560 INFO L131 PetriNetUnfolder]: For 17363/17540 co-relation queries the response was YES. [2023-08-31 00:37:04,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28392 conditions, 8615 events. 4694/8615 cut-off events. For 17363/17540 co-relation queries the response was YES. Maximal size of possible extension queue 461. Compared 65378 event pairs, 1446 based on Foata normal form. 228/8520 useless extension candidates. Maximal degree in co-relation 28359. Up to 3643 conditions per place. [2023-08-31 00:37:04,651 INFO L137 encePairwiseOnDemand]: 307/313 looper letters, 130 selfloop transitions, 35 changer transitions 1/188 dead transitions. [2023-08-31 00:37:04,652 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 188 transitions, 1545 flow [2023-08-31 00:37:04,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-31 00:37:04,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-31 00:37:04,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1087 transitions. [2023-08-31 00:37:04,656 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49612049292560473 [2023-08-31 00:37:04,656 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1087 transitions. [2023-08-31 00:37:04,656 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1087 transitions. [2023-08-31 00:37:04,657 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 00:37:04,658 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1087 transitions. [2023-08-31 00:37:04,661 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 155.28571428571428) internal successors, (1087), 7 states have internal predecessors, (1087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:37:04,666 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 313.0) internal successors, (2504), 8 states have internal predecessors, (2504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:37:04,667 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 313.0) internal successors, (2504), 8 states have internal predecessors, (2504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:37:04,667 INFO L175 Difference]: Start difference. First operand has 84 places, 89 transitions, 697 flow. Second operand 7 states and 1087 transitions. [2023-08-31 00:37:04,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 188 transitions, 1545 flow [2023-08-31 00:37:04,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 188 transitions, 1539 flow, removed 3 selfloop flow, removed 0 redundant places. [2023-08-31 00:37:04,771 INFO L231 Difference]: Finished difference. Result has 94 places, 93 transitions, 808 flow [2023-08-31 00:37:04,772 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=691, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=808, PETRI_PLACES=94, PETRI_TRANSITIONS=93} [2023-08-31 00:37:04,774 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, 47 predicate places. [2023-08-31 00:37:04,775 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 93 transitions, 808 flow [2023-08-31 00:37:04,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 142.83333333333334) internal successors, (857), 6 states have internal predecessors, (857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:37:04,775 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:37:04,776 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 00:37:04,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-31 00:37:04,776 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2023-08-31 00:37:04,776 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:37:04,777 INFO L85 PathProgramCache]: Analyzing trace with hash -546670984, now seen corresponding path program 1 times [2023-08-31 00:37:04,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:37:04,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612967306] [2023-08-31 00:37:04,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:37:04,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:37:04,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:37:04,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 00:37:04,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 00:37:04,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612967306] [2023-08-31 00:37:04,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612967306] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 00:37:04,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 00:37:04,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 00:37:04,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31439743] [2023-08-31 00:37:04,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 00:37:04,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-31 00:37:04,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 00:37:04,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-31 00:37:04,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-31 00:37:05,004 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 313 [2023-08-31 00:37:05,005 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 93 transitions, 808 flow. Second operand has 5 states, 5 states have (on average 140.2) internal successors, (701), 5 states have internal predecessors, (701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:37:05,005 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 00:37:05,006 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 313 [2023-08-31 00:37:05,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 00:37:05,495 INFO L130 PetriNetUnfolder]: 1271/2872 cut-off events. [2023-08-31 00:37:05,496 INFO L131 PetriNetUnfolder]: For 9106/9392 co-relation queries the response was YES. [2023-08-31 00:37:05,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10413 conditions, 2872 events. 1271/2872 cut-off events. For 9106/9392 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 21434 event pairs, 229 based on Foata normal form. 481/3239 useless extension candidates. Maximal degree in co-relation 10375. Up to 1674 conditions per place. [2023-08-31 00:37:05,513 INFO L137 encePairwiseOnDemand]: 303/313 looper letters, 53 selfloop transitions, 17 changer transitions 4/104 dead transitions. [2023-08-31 00:37:05,514 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 104 transitions, 974 flow [2023-08-31 00:37:05,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-31 00:37:05,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-31 00:37:05,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 596 transitions. [2023-08-31 00:37:05,516 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.476038338658147 [2023-08-31 00:37:05,516 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 596 transitions. [2023-08-31 00:37:05,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 596 transitions. [2023-08-31 00:37:05,517 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 00:37:05,517 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 596 transitions. [2023-08-31 00:37:05,518 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 149.0) internal successors, (596), 4 states have internal predecessors, (596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:37:05,520 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 313.0) internal successors, (1565), 5 states have internal predecessors, (1565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:37:05,521 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 313.0) internal successors, (1565), 5 states have internal predecessors, (1565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:37:05,521 INFO L175 Difference]: Start difference. First operand has 94 places, 93 transitions, 808 flow. Second operand 4 states and 596 transitions. [2023-08-31 00:37:05,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 104 transitions, 974 flow [2023-08-31 00:37:05,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 104 transitions, 909 flow, removed 7 selfloop flow, removed 4 redundant places. [2023-08-31 00:37:05,554 INFO L231 Difference]: Finished difference. Result has 92 places, 85 transitions, 678 flow [2023-08-31 00:37:05,554 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=675, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=678, PETRI_PLACES=92, PETRI_TRANSITIONS=85} [2023-08-31 00:37:05,555 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, 45 predicate places. [2023-08-31 00:37:05,555 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 85 transitions, 678 flow [2023-08-31 00:37:05,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 140.2) internal successors, (701), 5 states have internal predecessors, (701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:37:05,556 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:37:05,556 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 00:37:05,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-31 00:37:05,556 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2023-08-31 00:37:05,557 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:37:05,557 INFO L85 PathProgramCache]: Analyzing trace with hash 392477943, now seen corresponding path program 1 times [2023-08-31 00:37:05,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:37:05,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788098379] [2023-08-31 00:37:05,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:37:05,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:37:05,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:37:05,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 00:37:05,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 00:37:05,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788098379] [2023-08-31 00:37:05,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788098379] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 00:37:05,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 00:37:05,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 00:37:05,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726450736] [2023-08-31 00:37:05,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 00:37:05,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 00:37:05,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 00:37:05,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 00:37:05,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-08-31 00:37:05,693 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 313 [2023-08-31 00:37:05,694 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 85 transitions, 678 flow. Second operand has 6 states, 6 states have (on average 143.16666666666666) internal successors, (859), 6 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:37:05,694 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 00:37:05,694 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 313 [2023-08-31 00:37:05,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 00:37:06,219 INFO L130 PetriNetUnfolder]: 1335/3024 cut-off events. [2023-08-31 00:37:06,219 INFO L131 PetriNetUnfolder]: For 7941/8144 co-relation queries the response was YES. [2023-08-31 00:37:06,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10897 conditions, 3024 events. 1335/3024 cut-off events. For 7941/8144 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 23006 event pairs, 208 based on Foata normal form. 179/3143 useless extension candidates. Maximal degree in co-relation 10860. Up to 1107 conditions per place. [2023-08-31 00:37:06,237 INFO L137 encePairwiseOnDemand]: 305/313 looper letters, 129 selfloop transitions, 39 changer transitions 11/199 dead transitions. [2023-08-31 00:37:06,237 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 199 transitions, 1664 flow [2023-08-31 00:37:06,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-31 00:37:06,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-31 00:37:06,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1961 transitions. [2023-08-31 00:37:06,243 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48193659375768 [2023-08-31 00:37:06,243 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1961 transitions. [2023-08-31 00:37:06,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1961 transitions. [2023-08-31 00:37:06,244 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 00:37:06,244 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1961 transitions. [2023-08-31 00:37:06,249 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 150.84615384615384) internal successors, (1961), 13 states have internal predecessors, (1961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:37:06,254 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 313.0) internal successors, (4382), 14 states have internal predecessors, (4382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:37:06,255 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 313.0) internal successors, (4382), 14 states have internal predecessors, (4382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:37:06,256 INFO L175 Difference]: Start difference. First operand has 92 places, 85 transitions, 678 flow. Second operand 13 states and 1961 transitions. [2023-08-31 00:37:06,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 199 transitions, 1664 flow [2023-08-31 00:37:06,286 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 199 transitions, 1591 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-08-31 00:37:06,288 INFO L231 Difference]: Finished difference. Result has 106 places, 91 transitions, 844 flow [2023-08-31 00:37:06,289 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=659, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=844, PETRI_PLACES=106, PETRI_TRANSITIONS=91} [2023-08-31 00:37:06,289 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, 59 predicate places. [2023-08-31 00:37:06,290 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 91 transitions, 844 flow [2023-08-31 00:37:06,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 143.16666666666666) internal successors, (859), 6 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:37:06,290 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:37:06,290 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 00:37:06,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-31 00:37:06,291 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2023-08-31 00:37:06,291 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:37:06,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1974240727, now seen corresponding path program 1 times [2023-08-31 00:37:06,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:37:06,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860971081] [2023-08-31 00:37:06,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:37:06,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:37:06,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:37:06,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 00:37:06,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 00:37:06,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860971081] [2023-08-31 00:37:06,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860971081] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 00:37:06,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 00:37:06,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-31 00:37:06,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083261106] [2023-08-31 00:37:06,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 00:37:06,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-31 00:37:06,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 00:37:06,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-31 00:37:06,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-31 00:37:06,493 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 313 [2023-08-31 00:37:06,494 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 91 transitions, 844 flow. Second operand has 5 states, 5 states have (on average 139.0) internal successors, (695), 5 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:37:06,494 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 00:37:06,494 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 313 [2023-08-31 00:37:06,495 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 00:37:06,661 INFO L130 PetriNetUnfolder]: 297/1077 cut-off events. [2023-08-31 00:37:06,661 INFO L131 PetriNetUnfolder]: For 2194/2308 co-relation queries the response was YES. [2023-08-31 00:37:06,665 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3776 conditions, 1077 events. 297/1077 cut-off events. For 2194/2308 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 7726 event pairs, 119 based on Foata normal form. 57/1119 useless extension candidates. Maximal degree in co-relation 3734. Up to 480 conditions per place. [2023-08-31 00:37:06,667 INFO L137 encePairwiseOnDemand]: 302/313 looper letters, 37 selfloop transitions, 14 changer transitions 2/73 dead transitions. [2023-08-31 00:37:06,667 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 73 transitions, 661 flow [2023-08-31 00:37:06,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-31 00:37:06,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-31 00:37:06,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 586 transitions. [2023-08-31 00:37:06,670 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4680511182108626 [2023-08-31 00:37:06,670 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 586 transitions. [2023-08-31 00:37:06,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 586 transitions. [2023-08-31 00:37:06,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 00:37:06,671 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 586 transitions. [2023-08-31 00:37:06,672 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 146.5) internal successors, (586), 4 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:37:06,674 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 313.0) internal successors, (1565), 5 states have internal predecessors, (1565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:37:06,675 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 313.0) internal successors, (1565), 5 states have internal predecessors, (1565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:37:06,675 INFO L175 Difference]: Start difference. First operand has 106 places, 91 transitions, 844 flow. Second operand 4 states and 586 transitions. [2023-08-31 00:37:06,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 73 transitions, 661 flow [2023-08-31 00:37:06,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 73 transitions, 534 flow, removed 18 selfloop flow, removed 21 redundant places. [2023-08-31 00:37:06,685 INFO L231 Difference]: Finished difference. Result has 83 places, 64 transitions, 414 flow [2023-08-31 00:37:06,686 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=410, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=414, PETRI_PLACES=83, PETRI_TRANSITIONS=64} [2023-08-31 00:37:06,687 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, 36 predicate places. [2023-08-31 00:37:06,688 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 64 transitions, 414 flow [2023-08-31 00:37:06,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 139.0) internal successors, (695), 5 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:37:06,688 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:37:06,688 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 00:37:06,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-31 00:37:06,689 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2023-08-31 00:37:06,689 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:37:06,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1373040322, now seen corresponding path program 1 times [2023-08-31 00:37:06,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:37:06,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065546162] [2023-08-31 00:37:06,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:37:06,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:37:06,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:37:06,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 00:37:06,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 00:37:06,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065546162] [2023-08-31 00:37:06,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065546162] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 00:37:06,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 00:37:06,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 00:37:06,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62312270] [2023-08-31 00:37:06,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 00:37:06,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 00:37:06,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 00:37:06,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 00:37:06,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-08-31 00:37:06,859 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 313 [2023-08-31 00:37:06,860 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 64 transitions, 414 flow. Second operand has 6 states, 6 states have (on average 142.5) internal successors, (855), 6 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:37:06,860 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 00:37:06,860 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 313 [2023-08-31 00:37:06,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 00:37:07,260 INFO L130 PetriNetUnfolder]: 336/1166 cut-off events. [2023-08-31 00:37:07,260 INFO L131 PetriNetUnfolder]: For 1519/1570 co-relation queries the response was YES. [2023-08-31 00:37:07,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3901 conditions, 1166 events. 336/1166 cut-off events. For 1519/1570 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 8242 event pairs, 87 based on Foata normal form. 24/1164 useless extension candidates. Maximal degree in co-relation 3872. Up to 321 conditions per place. [2023-08-31 00:37:07,265 INFO L137 encePairwiseOnDemand]: 306/313 looper letters, 63 selfloop transitions, 15 changer transitions 31/125 dead transitions. [2023-08-31 00:37:07,266 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 125 transitions, 957 flow [2023-08-31 00:37:07,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-31 00:37:07,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-31 00:37:07,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1763 transitions. [2023-08-31 00:37:07,271 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4693823216187433 [2023-08-31 00:37:07,271 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1763 transitions. [2023-08-31 00:37:07,271 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1763 transitions. [2023-08-31 00:37:07,272 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 00:37:07,272 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1763 transitions. [2023-08-31 00:37:07,276 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 146.91666666666666) internal successors, (1763), 12 states have internal predecessors, (1763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:37:07,280 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 313.0) internal successors, (4069), 13 states have internal predecessors, (4069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:37:07,281 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 313.0) internal successors, (4069), 13 states have internal predecessors, (4069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:37:07,282 INFO L175 Difference]: Start difference. First operand has 83 places, 64 transitions, 414 flow. Second operand 12 states and 1763 transitions. [2023-08-31 00:37:07,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 125 transitions, 957 flow [2023-08-31 00:37:07,286 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 125 transitions, 912 flow, removed 4 selfloop flow, removed 3 redundant places. [2023-08-31 00:37:07,287 INFO L231 Difference]: Finished difference. Result has 90 places, 54 transitions, 335 flow [2023-08-31 00:37:07,287 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=335, PETRI_PLACES=90, PETRI_TRANSITIONS=54} [2023-08-31 00:37:07,288 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, 43 predicate places. [2023-08-31 00:37:07,288 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 54 transitions, 335 flow [2023-08-31 00:37:07,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 142.5) internal successors, (855), 6 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:37:07,289 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:37:07,289 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 00:37:07,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-31 00:37:07,290 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2023-08-31 00:37:07,290 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:37:07,290 INFO L85 PathProgramCache]: Analyzing trace with hash 2055360479, now seen corresponding path program 1 times [2023-08-31 00:37:07,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:37:07,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346745922] [2023-08-31 00:37:07,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:37:07,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:37:07,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 00:37:07,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 00:37:07,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 00:37:07,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346745922] [2023-08-31 00:37:07,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346745922] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 00:37:07,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 00:37:07,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 00:37:07,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112720371] [2023-08-31 00:37:07,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 00:37:07,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 00:37:07,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 00:37:07,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 00:37:07,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-08-31 00:37:07,501 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 313 [2023-08-31 00:37:07,502 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 54 transitions, 335 flow. Second operand has 6 states, 6 states have (on average 143.66666666666666) internal successors, (862), 6 states have internal predecessors, (862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:37:07,502 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 00:37:07,502 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 313 [2023-08-31 00:37:07,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 00:37:07,668 INFO L130 PetriNetUnfolder]: 181/647 cut-off events. [2023-08-31 00:37:07,668 INFO L131 PetriNetUnfolder]: For 824/866 co-relation queries the response was YES. [2023-08-31 00:37:07,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2028 conditions, 647 events. 181/647 cut-off events. For 824/866 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 3843 event pairs, 77 based on Foata normal form. 29/657 useless extension candidates. Maximal degree in co-relation 2014. Up to 237 conditions per place. [2023-08-31 00:37:07,670 INFO L137 encePairwiseOnDemand]: 307/313 looper letters, 0 selfloop transitions, 0 changer transitions 75/75 dead transitions. [2023-08-31 00:37:07,671 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 75 transitions, 524 flow [2023-08-31 00:37:07,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-31 00:37:07,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-31 00:37:07,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1034 transitions. [2023-08-31 00:37:07,674 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47193062528525787 [2023-08-31 00:37:07,674 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1034 transitions. [2023-08-31 00:37:07,674 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1034 transitions. [2023-08-31 00:37:07,675 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 00:37:07,675 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1034 transitions. [2023-08-31 00:37:07,677 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 147.71428571428572) internal successors, (1034), 7 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:37:07,680 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 313.0) internal successors, (2504), 8 states have internal predecessors, (2504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:37:07,680 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 313.0) internal successors, (2504), 8 states have internal predecessors, (2504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:37:07,680 INFO L175 Difference]: Start difference. First operand has 90 places, 54 transitions, 335 flow. Second operand 7 states and 1034 transitions. [2023-08-31 00:37:07,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 75 transitions, 524 flow [2023-08-31 00:37:07,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 75 transitions, 477 flow, removed 5 selfloop flow, removed 11 redundant places. [2023-08-31 00:37:07,684 INFO L231 Difference]: Finished difference. Result has 79 places, 0 transitions, 0 flow [2023-08-31 00:37:07,684 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=79, PETRI_TRANSITIONS=0} [2023-08-31 00:37:07,685 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, 32 predicate places. [2023-08-31 00:37:07,685 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 0 transitions, 0 flow [2023-08-31 00:37:07,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 143.66666666666666) internal successors, (862), 6 states have internal predecessors, (862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 00:37:07,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 9 remaining) [2023-08-31 00:37:07,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 9 remaining) [2023-08-31 00:37:07,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 9 remaining) [2023-08-31 00:37:07,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (5 of 9 remaining) [2023-08-31 00:37:07,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2023-08-31 00:37:07,690 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 9 remaining) [2023-08-31 00:37:07,690 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 9 remaining) [2023-08-31 00:37:07,690 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 9 remaining) [2023-08-31 00:37:07,690 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 9 remaining) [2023-08-31 00:37:07,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-31 00:37:07,691 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 00:37:07,695 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 00:37:07,695 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 00:37:07,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 12:37:07 BasicIcfg [2023-08-31 00:37:07,698 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 00:37:07,698 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 00:37:07,698 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 00:37:07,699 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 00:37:07,699 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 12:36:53" (3/4) ... [2023-08-31 00:37:07,701 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-31 00:37:07,706 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t2_fun [2023-08-31 00:37:07,706 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t3_fun [2023-08-31 00:37:07,706 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-31 00:37:07,710 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-08-31 00:37:07,710 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-31 00:37:07,710 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-31 00:37:07,710 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-31 00:37:07,737 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-31 00:37:07,738 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 00:37:07,738 INFO L158 Benchmark]: Toolchain (without parser) took 15218.43ms. Allocated memory was 86.0MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 63.1MB in the beginning and 1.0GB in the end (delta: -954.3MB). Peak memory consumption was 325.3MB. Max. memory is 16.1GB. [2023-08-31 00:37:07,738 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 67.1MB. Free memory is still 45.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 00:37:07,739 INFO L158 Benchmark]: CACSL2BoogieTranslator took 513.12ms. Allocated memory is still 86.0MB. Free memory was 62.9MB in the beginning and 65.1MB in the end (delta: -2.2MB). Peak memory consumption was 26.0MB. Max. memory is 16.1GB. [2023-08-31 00:37:07,739 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.95ms. Allocated memory is still 86.0MB. Free memory was 65.1MB in the beginning and 63.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 00:37:07,739 INFO L158 Benchmark]: Boogie Preprocessor took 50.89ms. Allocated memory is still 86.0MB. Free memory was 63.0MB in the beginning and 61.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 00:37:07,739 INFO L158 Benchmark]: RCFGBuilder took 469.63ms. Allocated memory is still 86.0MB. Free memory was 61.2MB in the beginning and 44.1MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-08-31 00:37:07,740 INFO L158 Benchmark]: TraceAbstraction took 14073.71ms. Allocated memory was 86.0MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 43.4MB in the beginning and 1.0GB in the end (delta: -978.2MB). Peak memory consumption was 299.3MB. Max. memory is 16.1GB. [2023-08-31 00:37:07,740 INFO L158 Benchmark]: Witness Printer took 39.58ms. Allocated memory is still 1.4GB. Free memory was 1.0GB in the beginning and 1.0GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-31 00:37:07,741 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 67.1MB. Free memory is still 45.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 513.12ms. Allocated memory is still 86.0MB. Free memory was 62.9MB in the beginning and 65.1MB in the end (delta: -2.2MB). Peak memory consumption was 26.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.95ms. Allocated memory is still 86.0MB. Free memory was 65.1MB in the beginning and 63.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.89ms. Allocated memory is still 86.0MB. Free memory was 63.0MB in the beginning and 61.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 469.63ms. Allocated memory is still 86.0MB. Free memory was 61.2MB in the beginning and 44.1MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 14073.71ms. Allocated memory was 86.0MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 43.4MB in the beginning and 1.0GB in the end (delta: -978.2MB). Peak memory consumption was 299.3MB. Max. memory is 16.1GB. * Witness Printer took 39.58ms. Allocated memory is still 1.4GB. Free memory was 1.0GB in the beginning and 1.0GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.7s, 164 PlacesBefore, 47 PlacesAfterwards, 159 TransitionsBefore, 39 TransitionsAfterwards, 9270 CoEnabledTransitionPairs, 7 FixpointIterations, 38 TrivialSequentialCompositions, 91 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 19 ConcurrentYvCompositions, 3 ChoiceCompositions, 151 TotalNumberOfCompositions, 20940 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 10029, independent: 9648, independent conditional: 0, independent unconditional: 9648, dependent: 381, dependent conditional: 0, dependent unconditional: 381, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5199, independent: 5132, independent conditional: 0, independent unconditional: 5132, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 10029, independent: 4516, independent conditional: 0, independent unconditional: 4516, dependent: 314, dependent conditional: 0, dependent unconditional: 314, unknown: 5199, unknown conditional: 0, unknown unconditional: 5199] , Statistics on independence cache: Total cache size (in pairs): 202, Positive cache size: 173, Positive conditional cache size: 0, Positive unconditional cache size: 173, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 233 locations, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 13.9s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1119 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 893 mSDsluCounter, 247 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 204 mSDsCounter, 114 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2264 IncrementalHoareTripleChecker+Invalid, 2378 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 114 mSolverCounterUnsat, 43 mSDtfsCounter, 2264 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 84 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=844occurred in iteration=7, InterpolantAutomatonStates: 74, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 145 NumberOfCodeBlocks, 145 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 135 ConstructedInterpolants, 0 QuantifiedInterpolants, 675 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-31 00:37:07,761 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE