./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 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 ../sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c -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 c947ca303cec71cbb6edeb9f866ed53067014e89778e5c242eb251405d7ab484 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 09:02:44,391 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 09:02:44,393 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 09:02:44,425 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 09:02:44,425 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 09:02:44,426 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 09:02:44,430 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 09:02:44,432 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 09:02:44,434 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 09:02:44,438 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 09:02:44,440 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 09:02:44,444 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 09:02:44,444 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 09:02:44,446 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 09:02:44,447 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 09:02:44,450 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 09:02:44,450 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 09:02:44,452 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 09:02:44,453 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 09:02:44,458 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 09:02:44,459 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 09:02:44,460 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 09:02:44,461 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 09:02:44,461 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 09:02:44,462 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 09:02:44,464 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 09:02:44,464 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 09:02:44,465 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 09:02:44,465 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 09:02:44,466 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 09:02:44,466 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 09:02:44,467 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 09:02:44,468 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 09:02:44,469 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 09:02:44,470 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 09:02:44,471 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 09:02:44,471 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 09:02:44,471 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 09:02:44,472 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 09:02:44,472 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 09:02:44,473 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 09:02:44,474 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 09:02:44,479 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 09:02:44,516 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 09:02:44,516 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 09:02:44,517 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 09:02:44,517 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 09:02:44,518 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 09:02:44,518 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 09:02:44,519 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 09:02:44,519 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 09:02:44,519 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 09:02:44,520 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 09:02:44,520 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 09:02:44,520 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 09:02:44,520 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 09:02:44,521 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 09:02:44,521 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 09:02:44,521 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 09:02:44,521 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 09:02:44,522 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 09:02:44,522 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 09:02:44,522 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 09:02:44,522 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 09:02:44,522 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 09:02:44,523 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 09:02:44,523 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 09:02:44,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 09:02:44,523 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 09:02:44,523 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 09:02:44,524 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 09:02:44,524 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 09:02:44,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 09:02:44,524 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 09:02:44,524 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 09:02:44,525 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 09:02:44,525 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c947ca303cec71cbb6edeb9f866ed53067014e89778e5c242eb251405d7ab484 [2022-07-21 09:02:44,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 09:02:44,838 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 09:02:44,841 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 09:02:44,841 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 09:02:44,842 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 09:02:44,843 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c [2022-07-21 09:02:44,900 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f08ba500/0c12d1ee6ce44f72af58c762b2a530f3/FLAGc774cf525 [2022-07-21 09:02:45,371 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 09:02:45,371 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c [2022-07-21 09:02:45,378 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f08ba500/0c12d1ee6ce44f72af58c762b2a530f3/FLAGc774cf525 [2022-07-21 09:02:45,394 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f08ba500/0c12d1ee6ce44f72af58c762b2a530f3 [2022-07-21 09:02:45,396 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 09:02:45,397 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 09:02:45,400 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 09:02:45,400 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 09:02:45,403 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 09:02:45,404 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 09:02:45" (1/1) ... [2022-07-21 09:02:45,405 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d7609fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:02:45, skipping insertion in model container [2022-07-21 09:02:45,405 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 09:02:45" (1/1) ... [2022-07-21 09:02:45,412 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 09:02:45,433 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 09:02:45,567 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c[3089,3102] [2022-07-21 09:02:45,570 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 09:02:45,577 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 09:02:45,629 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c[3089,3102] [2022-07-21 09:02:45,629 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 09:02:45,643 INFO L208 MainTranslator]: Completed translation [2022-07-21 09:02:45,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:02:45 WrapperNode [2022-07-21 09:02:45,643 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 09:02:45,645 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 09:02:45,645 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 09:02:45,645 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 09:02:45,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:02:45" (1/1) ... [2022-07-21 09:02:45,665 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:02:45" (1/1) ... [2022-07-21 09:02:45,695 INFO L137 Inliner]: procedures = 22, calls = 55, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 158 [2022-07-21 09:02:45,695 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 09:02:45,696 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 09:02:45,697 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 09:02:45,697 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 09:02:45,703 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:02:45" (1/1) ... [2022-07-21 09:02:45,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:02:45" (1/1) ... [2022-07-21 09:02:45,714 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:02:45" (1/1) ... [2022-07-21 09:02:45,715 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:02:45" (1/1) ... [2022-07-21 09:02:45,723 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:02:45" (1/1) ... [2022-07-21 09:02:45,731 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:02:45" (1/1) ... [2022-07-21 09:02:45,733 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:02:45" (1/1) ... [2022-07-21 09:02:45,738 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 09:02:45,744 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 09:02:45,745 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 09:02:45,745 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 09:02:45,746 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:02:45" (1/1) ... [2022-07-21 09:02:45,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 09:02:45,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:02:45,776 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) [2022-07-21 09:02:45,801 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 [2022-07-21 09:02:45,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 09:02:45,815 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-07-21 09:02:45,815 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-07-21 09:02:45,816 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-07-21 09:02:45,816 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-07-21 09:02:45,816 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-07-21 09:02:45,816 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-07-21 09:02:45,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 09:02:45,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 09:02:45,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 09:02:45,816 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-07-21 09:02:45,817 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-07-21 09:02:45,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 09:02:45,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 09:02:45,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 09:02:45,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 09:02:45,818 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-21 09:02:45,919 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 09:02:45,921 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 09:02:46,189 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 09:02:46,263 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 09:02:46,263 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 09:02:46,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 09:02:46 BoogieIcfgContainer [2022-07-21 09:02:46,265 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 09:02:46,267 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 09:02:46,267 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 09:02:46,270 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 09:02:46,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 09:02:45" (1/3) ... [2022-07-21 09:02:46,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36a0bb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 09:02:46, skipping insertion in model container [2022-07-21 09:02:46,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:02:45" (2/3) ... [2022-07-21 09:02:46,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36a0bb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 09:02:46, skipping insertion in model container [2022-07-21 09:02:46,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 09:02:46" (3/3) ... [2022-07-21 09:02:46,274 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-ticket-3.wvr.c [2022-07-21 09:02:46,279 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-21 09:02:46,287 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 09:02:46,288 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 09:02:46,288 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-21 09:02:46,370 INFO L135 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-07-21 09:02:46,420 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 127 places, 119 transitions, 262 flow [2022-07-21 09:02:46,502 INFO L129 PetriNetUnfolder]: 2/116 cut-off events. [2022-07-21 09:02:46,503 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-07-21 09:02:46,506 INFO L84 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 116 events. 2/116 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 39 event pairs, 0 based on Foata normal form. 0/113 useless extension candidates. Maximal degree in co-relation 82. Up to 2 conditions per place. [2022-07-21 09:02:46,506 INFO L82 GeneralOperation]: Start removeDead. Operand has 127 places, 119 transitions, 262 flow [2022-07-21 09:02:46,513 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 113 places, 105 transitions, 228 flow [2022-07-21 09:02:46,527 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 09:02:46,534 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@23a54110, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1cc4d5a2 [2022-07-21 09:02:46,535 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-07-21 09:02:46,562 INFO L129 PetriNetUnfolder]: 2/104 cut-off events. [2022-07-21 09:02:46,564 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-07-21 09:02:46,564 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 09:02:46,565 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:02:46,566 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-21 09:02:46,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:02:46,571 INFO L85 PathProgramCache]: Analyzing trace with hash -38046997, now seen corresponding path program 1 times [2022-07-21 09:02:46,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:02:46,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332111869] [2022-07-21 09:02:46,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:02:46,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:02:46,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:02:47,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 09:02:47,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:02:47,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332111869] [2022-07-21 09:02:47,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332111869] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:02:47,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:02:47,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-21 09:02:47,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640271303] [2022-07-21 09:02:47,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:02:47,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-21 09:02:47,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:02:47,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-21 09:02:47,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-07-21 09:02:47,394 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 119 [2022-07-21 09:02:47,402 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 105 transitions, 228 flow. Second operand has 10 states, 10 states have (on average 86.1) internal successors, (861), 10 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:02:47,402 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 09:02:47,403 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 119 [2022-07-21 09:02:47,404 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 09:02:47,929 INFO L129 PetriNetUnfolder]: 397/974 cut-off events. [2022-07-21 09:02:47,930 INFO L130 PetriNetUnfolder]: For 202/202 co-relation queries the response was YES. [2022-07-21 09:02:47,934 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1826 conditions, 974 events. 397/974 cut-off events. For 202/202 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 5248 event pairs, 221 based on Foata normal form. 3/943 useless extension candidates. Maximal degree in co-relation 1373. Up to 311 conditions per place. [2022-07-21 09:02:47,939 INFO L132 encePairwiseOnDemand]: 103/119 looper letters, 47 selfloop transitions, 11 changer transitions 22/150 dead transitions. [2022-07-21 09:02:47,939 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 150 transitions, 502 flow [2022-07-21 09:02:47,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-21 09:02:47,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-07-21 09:02:47,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1080 transitions. [2022-07-21 09:02:47,956 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7563025210084033 [2022-07-21 09:02:47,957 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1080 transitions. [2022-07-21 09:02:47,957 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1080 transitions. [2022-07-21 09:02:47,960 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 09:02:47,962 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1080 transitions. [2022-07-21 09:02:47,966 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 90.0) internal successors, (1080), 12 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:02:47,973 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 119.0) internal successors, (1547), 13 states have internal predecessors, (1547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:02:47,974 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 119.0) internal successors, (1547), 13 states have internal predecessors, (1547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:02:47,976 INFO L186 Difference]: Start difference. First operand has 113 places, 105 transitions, 228 flow. Second operand 12 states and 1080 transitions. [2022-07-21 09:02:47,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 150 transitions, 502 flow [2022-07-21 09:02:47,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 150 transitions, 474 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-07-21 09:02:47,983 INFO L242 Difference]: Finished difference. Result has 122 places, 106 transitions, 257 flow [2022-07-21 09:02:47,985 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=257, PETRI_PLACES=122, PETRI_TRANSITIONS=106} [2022-07-21 09:02:47,988 INFO L279 CegarLoopForPetriNet]: 113 programPoint places, 9 predicate places. [2022-07-21 09:02:47,988 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 106 transitions, 257 flow [2022-07-21 09:02:47,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 86.1) internal successors, (861), 10 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:02:47,989 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 09:02:47,989 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:02:47,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 09:02:47,990 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-21 09:02:47,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:02:47,990 INFO L85 PathProgramCache]: Analyzing trace with hash 150454403, now seen corresponding path program 2 times [2022-07-21 09:02:47,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:02:47,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190293739] [2022-07-21 09:02:47,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:02:47,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:02:48,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:02:48,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 09:02:48,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:02:48,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190293739] [2022-07-21 09:02:48,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190293739] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:02:48,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:02:48,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-21 09:02:48,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381026836] [2022-07-21 09:02:48,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:02:48,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-21 09:02:48,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:02:48,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-21 09:02:48,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-07-21 09:02:48,231 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 119 [2022-07-21 09:02:48,232 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 106 transitions, 257 flow. Second operand has 10 states, 10 states have (on average 86.1) internal successors, (861), 10 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:02:48,233 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 09:02:48,233 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 119 [2022-07-21 09:02:48,233 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 09:02:48,569 INFO L129 PetriNetUnfolder]: 355/957 cut-off events. [2022-07-21 09:02:48,570 INFO L130 PetriNetUnfolder]: For 175/175 co-relation queries the response was YES. [2022-07-21 09:02:48,572 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1809 conditions, 957 events. 355/957 cut-off events. For 175/175 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 5559 event pairs, 117 based on Foata normal form. 1/928 useless extension candidates. Maximal degree in co-relation 1797. Up to 308 conditions per place. [2022-07-21 09:02:48,575 INFO L132 encePairwiseOnDemand]: 108/119 looper letters, 36 selfloop transitions, 9 changer transitions 27/142 dead transitions. [2022-07-21 09:02:48,575 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 142 transitions, 499 flow [2022-07-21 09:02:48,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-21 09:02:48,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-07-21 09:02:48,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 899 transitions. [2022-07-21 09:02:48,579 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7554621848739496 [2022-07-21 09:02:48,579 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 899 transitions. [2022-07-21 09:02:48,579 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 899 transitions. [2022-07-21 09:02:48,580 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 09:02:48,580 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 899 transitions. [2022-07-21 09:02:48,583 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:02:48,585 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 119.0) internal successors, (1309), 11 states have internal predecessors, (1309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:02:48,586 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 119.0) internal successors, (1309), 11 states have internal predecessors, (1309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:02:48,586 INFO L186 Difference]: Start difference. First operand has 122 places, 106 transitions, 257 flow. Second operand 10 states and 899 transitions. [2022-07-21 09:02:48,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 142 transitions, 499 flow [2022-07-21 09:02:48,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 142 transitions, 485 flow, removed 5 selfloop flow, removed 5 redundant places. [2022-07-21 09:02:48,591 INFO L242 Difference]: Finished difference. Result has 124 places, 108 transitions, 294 flow [2022-07-21 09:02:48,592 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=247, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=294, PETRI_PLACES=124, PETRI_TRANSITIONS=108} [2022-07-21 09:02:48,593 INFO L279 CegarLoopForPetriNet]: 113 programPoint places, 11 predicate places. [2022-07-21 09:02:48,593 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 108 transitions, 294 flow [2022-07-21 09:02:48,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 86.1) internal successors, (861), 10 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:02:48,594 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 09:02:48,594 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:02:48,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 09:02:48,594 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-21 09:02:48,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:02:48,595 INFO L85 PathProgramCache]: Analyzing trace with hash -63470323, now seen corresponding path program 3 times [2022-07-21 09:02:48,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:02:48,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523159191] [2022-07-21 09:02:48,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:02:48,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:02:48,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:02:48,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 09:02:48,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:02:48,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523159191] [2022-07-21 09:02:48,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523159191] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:02:48,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:02:48,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 09:02:48,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938083664] [2022-07-21 09:02:48,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:02:48,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 09:02:48,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:02:48,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 09:02:48,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-21 09:02:48,726 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 119 [2022-07-21 09:02:48,727 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 108 transitions, 294 flow. Second operand has 8 states, 8 states have (on average 88.625) internal successors, (709), 8 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:02:48,727 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 09:02:48,727 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 119 [2022-07-21 09:02:48,727 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 09:02:48,914 INFO L129 PetriNetUnfolder]: 164/549 cut-off events. [2022-07-21 09:02:48,915 INFO L130 PetriNetUnfolder]: For 159/160 co-relation queries the response was YES. [2022-07-21 09:02:48,917 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1093 conditions, 549 events. 164/549 cut-off events. For 159/160 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2702 event pairs, 19 based on Foata normal form. 5/531 useless extension candidates. Maximal degree in co-relation 1073. Up to 124 conditions per place. [2022-07-21 09:02:48,920 INFO L132 encePairwiseOnDemand]: 109/119 looper letters, 42 selfloop transitions, 21 changer transitions 0/142 dead transitions. [2022-07-21 09:02:48,920 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 142 transitions, 503 flow [2022-07-21 09:02:48,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 09:02:48,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-07-21 09:02:48,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 744 transitions. [2022-07-21 09:02:48,923 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7815126050420168 [2022-07-21 09:02:48,923 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 744 transitions. [2022-07-21 09:02:48,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 744 transitions. [2022-07-21 09:02:48,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 09:02:48,924 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 744 transitions. [2022-07-21 09:02:48,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 93.0) internal successors, (744), 8 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:02:48,928 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 119.0) internal successors, (1071), 9 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:02:48,928 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 119.0) internal successors, (1071), 9 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:02:48,928 INFO L186 Difference]: Start difference. First operand has 124 places, 108 transitions, 294 flow. Second operand 8 states and 744 transitions. [2022-07-21 09:02:48,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 142 transitions, 503 flow [2022-07-21 09:02:48,933 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 142 transitions, 474 flow, removed 8 selfloop flow, removed 8 redundant places. [2022-07-21 09:02:48,937 INFO L242 Difference]: Finished difference. Result has 120 places, 122 transitions, 350 flow [2022-07-21 09:02:48,938 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=271, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=350, PETRI_PLACES=120, PETRI_TRANSITIONS=122} [2022-07-21 09:02:48,940 INFO L279 CegarLoopForPetriNet]: 113 programPoint places, 7 predicate places. [2022-07-21 09:02:48,940 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 122 transitions, 350 flow [2022-07-21 09:02:48,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 88.625) internal successors, (709), 8 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:02:48,940 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 09:02:48,941 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:02:48,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 09:02:48,941 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-21 09:02:48,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:02:48,942 INFO L85 PathProgramCache]: Analyzing trace with hash -2087359051, now seen corresponding path program 4 times [2022-07-21 09:02:48,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:02:48,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486226479] [2022-07-21 09:02:48,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:02:48,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:02:49,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:02:49,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 09:02:49,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:02:49,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486226479] [2022-07-21 09:02:49,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486226479] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:02:49,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:02:49,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 09:02:49,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080797172] [2022-07-21 09:02:49,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:02:49,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 09:02:49,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:02:49,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 09:02:49,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-21 09:02:49,106 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 119 [2022-07-21 09:02:49,107 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 122 transitions, 350 flow. Second operand has 7 states, 7 states have (on average 89.14285714285714) internal successors, (624), 7 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:02:49,107 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 09:02:49,107 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 119 [2022-07-21 09:02:49,107 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 09:02:49,287 INFO L129 PetriNetUnfolder]: 174/682 cut-off events. [2022-07-21 09:02:49,287 INFO L130 PetriNetUnfolder]: For 250/268 co-relation queries the response was YES. [2022-07-21 09:02:49,289 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1435 conditions, 682 events. 174/682 cut-off events. For 250/268 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 3885 event pairs, 47 based on Foata normal form. 24/680 useless extension candidates. Maximal degree in co-relation 721. Up to 120 conditions per place. [2022-07-21 09:02:49,293 INFO L132 encePairwiseOnDemand]: 109/119 looper letters, 46 selfloop transitions, 23 changer transitions 0/148 dead transitions. [2022-07-21 09:02:49,293 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 148 transitions, 576 flow [2022-07-21 09:02:49,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 09:02:49,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-07-21 09:02:49,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 653 transitions. [2022-07-21 09:02:49,295 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7839135654261705 [2022-07-21 09:02:49,295 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 653 transitions. [2022-07-21 09:02:49,296 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 653 transitions. [2022-07-21 09:02:49,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 09:02:49,299 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 653 transitions. [2022-07-21 09:02:49,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 93.28571428571429) internal successors, (653), 7 states have internal predecessors, (653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:02:49,303 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 119.0) internal successors, (952), 8 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:02:49,304 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 119.0) internal successors, (952), 8 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:02:49,304 INFO L186 Difference]: Start difference. First operand has 120 places, 122 transitions, 350 flow. Second operand 7 states and 653 transitions. [2022-07-21 09:02:49,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 148 transitions, 576 flow [2022-07-21 09:02:49,307 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 148 transitions, 568 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-07-21 09:02:49,311 INFO L242 Difference]: Finished difference. Result has 125 places, 133 transitions, 471 flow [2022-07-21 09:02:49,311 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=471, PETRI_PLACES=125, PETRI_TRANSITIONS=133} [2022-07-21 09:02:49,316 INFO L279 CegarLoopForPetriNet]: 113 programPoint places, 12 predicate places. [2022-07-21 09:02:49,316 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 133 transitions, 471 flow [2022-07-21 09:02:49,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 89.14285714285714) internal successors, (624), 7 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:02:49,318 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 09:02:49,318 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:02:49,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 09:02:49,318 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-21 09:02:49,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:02:49,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1741121809, now seen corresponding path program 5 times [2022-07-21 09:02:49,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:02:49,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097758153] [2022-07-21 09:02:49,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:02:49,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:02:49,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:02:49,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 09:02:49,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:02:49,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097758153] [2022-07-21 09:02:49,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097758153] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:02:49,437 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:02:49,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 09:02:49,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238063336] [2022-07-21 09:02:49,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:02:49,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 09:02:49,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:02:49,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 09:02:49,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-21 09:02:49,439 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 119 [2022-07-21 09:02:49,440 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 133 transitions, 471 flow. Second operand has 7 states, 7 states have (on average 89.14285714285714) internal successors, (624), 7 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:02:49,440 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 09:02:49,440 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 119 [2022-07-21 09:02:49,440 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 09:02:49,602 INFO L129 PetriNetUnfolder]: 149/625 cut-off events. [2022-07-21 09:02:49,603 INFO L130 PetriNetUnfolder]: For 622/655 co-relation queries the response was YES. [2022-07-21 09:02:49,605 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1545 conditions, 625 events. 149/625 cut-off events. For 622/655 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 3520 event pairs, 48 based on Foata normal form. 34/633 useless extension candidates. Maximal degree in co-relation 759. Up to 111 conditions per place. [2022-07-21 09:02:49,607 INFO L132 encePairwiseOnDemand]: 109/119 looper letters, 44 selfloop transitions, 24 changer transitions 4/151 dead transitions. [2022-07-21 09:02:49,607 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 151 transitions, 688 flow [2022-07-21 09:02:49,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 09:02:49,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-07-21 09:02:49,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 654 transitions. [2022-07-21 09:02:49,609 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7851140456182473 [2022-07-21 09:02:49,610 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 654 transitions. [2022-07-21 09:02:49,610 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 654 transitions. [2022-07-21 09:02:49,610 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 09:02:49,610 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 654 transitions. [2022-07-21 09:02:49,612 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 93.42857142857143) internal successors, (654), 7 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:02:49,613 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 119.0) internal successors, (952), 8 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:02:49,614 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 119.0) internal successors, (952), 8 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:02:49,614 INFO L186 Difference]: Start difference. First operand has 125 places, 133 transitions, 471 flow. Second operand 7 states and 654 transitions. [2022-07-21 09:02:49,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 151 transitions, 688 flow [2022-07-21 09:02:49,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 151 transitions, 672 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-07-21 09:02:49,619 INFO L242 Difference]: Finished difference. Result has 129 places, 134 transitions, 523 flow [2022-07-21 09:02:49,619 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=462, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=523, PETRI_PLACES=129, PETRI_TRANSITIONS=134} [2022-07-21 09:02:49,620 INFO L279 CegarLoopForPetriNet]: 113 programPoint places, 16 predicate places. [2022-07-21 09:02:49,620 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 134 transitions, 523 flow [2022-07-21 09:02:49,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 89.14285714285714) internal successors, (624), 7 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:02:49,621 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 09:02:49,621 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:02:49,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 09:02:49,622 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-21 09:02:49,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:02:49,622 INFO L85 PathProgramCache]: Analyzing trace with hash 787635499, now seen corresponding path program 6 times [2022-07-21 09:02:49,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:02:49,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935547427] [2022-07-21 09:02:49,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:02:49,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:02:49,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:02:49,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 09:02:49,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:02:49,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935547427] [2022-07-21 09:02:49,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935547427] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:02:49,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:02:49,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 09:02:49,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232858635] [2022-07-21 09:02:49,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:02:49,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 09:02:49,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:02:49,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 09:02:49,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-21 09:02:49,713 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 119 [2022-07-21 09:02:49,714 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 134 transitions, 523 flow. Second operand has 7 states, 7 states have (on average 89.14285714285714) internal successors, (624), 7 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:02:49,714 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 09:02:49,714 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 119 [2022-07-21 09:02:49,714 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 09:02:49,826 INFO L129 PetriNetUnfolder]: 42/280 cut-off events. [2022-07-21 09:02:49,826 INFO L130 PetriNetUnfolder]: For 309/323 co-relation queries the response was YES. [2022-07-21 09:02:49,827 INFO L84 FinitePrefix]: Finished finitePrefix Result has 690 conditions, 280 events. 42/280 cut-off events. For 309/323 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 933 event pairs, 5 based on Foata normal form. 24/300 useless extension candidates. Maximal degree in co-relation 420. Up to 40 conditions per place. [2022-07-21 09:02:49,828 INFO L132 encePairwiseOnDemand]: 109/119 looper letters, 36 selfloop transitions, 23 changer transitions 2/135 dead transitions. [2022-07-21 09:02:49,829 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 135 transitions, 631 flow [2022-07-21 09:02:49,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 09:02:49,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-07-21 09:02:49,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 647 transitions. [2022-07-21 09:02:49,831 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7767106842737095 [2022-07-21 09:02:49,831 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 647 transitions. [2022-07-21 09:02:49,831 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 647 transitions. [2022-07-21 09:02:49,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 09:02:49,832 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 647 transitions. [2022-07-21 09:02:49,833 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 92.42857142857143) internal successors, (647), 7 states have internal predecessors, (647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:02:49,835 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 119.0) internal successors, (952), 8 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:02:49,835 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 119.0) internal successors, (952), 8 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:02:49,835 INFO L186 Difference]: Start difference. First operand has 129 places, 134 transitions, 523 flow. Second operand 7 states and 647 transitions. [2022-07-21 09:02:49,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 135 transitions, 631 flow [2022-07-21 09:02:49,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 135 transitions, 582 flow, removed 1 selfloop flow, removed 9 redundant places. [2022-07-21 09:02:49,840 INFO L242 Difference]: Finished difference. Result has 127 places, 124 transitions, 469 flow [2022-07-21 09:02:49,840 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=396, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=469, PETRI_PLACES=127, PETRI_TRANSITIONS=124} [2022-07-21 09:02:49,841 INFO L279 CegarLoopForPetriNet]: 113 programPoint places, 14 predicate places. [2022-07-21 09:02:49,841 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 124 transitions, 469 flow [2022-07-21 09:02:49,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 89.14285714285714) internal successors, (624), 7 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:02:49,842 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 09:02:49,842 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:02:49,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 09:02:49,843 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-21 09:02:49,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:02:49,843 INFO L85 PathProgramCache]: Analyzing trace with hash -534133315, now seen corresponding path program 7 times [2022-07-21 09:02:49,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:02:49,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809501864] [2022-07-21 09:02:49,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:02:49,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:02:49,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:02:49,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 09:02:49,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:02:49,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809501864] [2022-07-21 09:02:49,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809501864] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:02:49,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:02:49,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 09:02:49,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412991258] [2022-07-21 09:02:49,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:02:49,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 09:02:49,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:02:49,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 09:02:49,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-07-21 09:02:49,980 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 119 [2022-07-21 09:02:49,981 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 124 transitions, 469 flow. Second operand has 8 states, 8 states have (on average 81.625) internal successors, (653), 8 states have internal predecessors, (653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:02:49,981 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 09:02:49,981 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 119 [2022-07-21 09:02:49,981 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 09:02:50,167 INFO L129 PetriNetUnfolder]: 60/301 cut-off events. [2022-07-21 09:02:50,167 INFO L130 PetriNetUnfolder]: For 393/393 co-relation queries the response was YES. [2022-07-21 09:02:50,168 INFO L84 FinitePrefix]: Finished finitePrefix Result has 796 conditions, 301 events. 60/301 cut-off events. For 393/393 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 944 event pairs, 9 based on Foata normal form. 3/299 useless extension candidates. Maximal degree in co-relation 452. Up to 59 conditions per place. [2022-07-21 09:02:50,170 INFO L132 encePairwiseOnDemand]: 109/119 looper letters, 52 selfloop transitions, 23 changer transitions 4/143 dead transitions. [2022-07-21 09:02:50,170 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 143 transitions, 699 flow [2022-07-21 09:02:50,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 09:02:50,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-07-21 09:02:50,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 683 transitions. [2022-07-21 09:02:50,172 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.717436974789916 [2022-07-21 09:02:50,172 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 683 transitions. [2022-07-21 09:02:50,172 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 683 transitions. [2022-07-21 09:02:50,173 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 09:02:50,173 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 683 transitions. [2022-07-21 09:02:50,174 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 85.375) internal successors, (683), 8 states have internal predecessors, (683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:02:50,176 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 119.0) internal successors, (1071), 9 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:02:50,176 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 119.0) internal successors, (1071), 9 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:02:50,177 INFO L186 Difference]: Start difference. First operand has 127 places, 124 transitions, 469 flow. Second operand 8 states and 683 transitions. [2022-07-21 09:02:50,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 143 transitions, 699 flow [2022-07-21 09:02:50,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 143 transitions, 672 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-07-21 09:02:50,181 INFO L242 Difference]: Finished difference. Result has 131 places, 122 transitions, 476 flow [2022-07-21 09:02:50,181 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=442, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=476, PETRI_PLACES=131, PETRI_TRANSITIONS=122} [2022-07-21 09:02:50,182 INFO L279 CegarLoopForPetriNet]: 113 programPoint places, 18 predicate places. [2022-07-21 09:02:50,182 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 122 transitions, 476 flow [2022-07-21 09:02:50,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 81.625) internal successors, (653), 8 states have internal predecessors, (653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:02:50,183 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 09:02:50,183 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:02:50,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-21 09:02:50,183 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-21 09:02:50,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:02:50,184 INFO L85 PathProgramCache]: Analyzing trace with hash -773389285, now seen corresponding path program 8 times [2022-07-21 09:02:50,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:02:50,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122817258] [2022-07-21 09:02:50,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:02:50,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:02:50,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:02:50,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 09:02:50,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:02:50,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122817258] [2022-07-21 09:02:50,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122817258] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:02:50,337 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:02:50,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-21 09:02:50,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912112874] [2022-07-21 09:02:50,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:02:50,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 09:02:50,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:02:50,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 09:02:50,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 09:02:50,340 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 119 [2022-07-21 09:02:50,340 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 122 transitions, 476 flow. Second operand has 9 states, 9 states have (on average 81.11111111111111) internal successors, (730), 9 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:02:50,340 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 09:02:50,341 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 119 [2022-07-21 09:02:50,341 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 09:02:50,573 INFO L129 PetriNetUnfolder]: 54/284 cut-off events. [2022-07-21 09:02:50,573 INFO L130 PetriNetUnfolder]: For 494/494 co-relation queries the response was YES. [2022-07-21 09:02:50,574 INFO L84 FinitePrefix]: Finished finitePrefix Result has 780 conditions, 284 events. 54/284 cut-off events. For 494/494 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 849 event pairs, 4 based on Foata normal form. 3/283 useless extension candidates. Maximal degree in co-relation 533. Up to 56 conditions per place. [2022-07-21 09:02:50,575 INFO L132 encePairwiseOnDemand]: 109/119 looper letters, 50 selfloop transitions, 21 changer transitions 8/143 dead transitions. [2022-07-21 09:02:50,575 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 143 transitions, 715 flow [2022-07-21 09:02:50,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-21 09:02:50,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-07-21 09:02:50,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 840 transitions. [2022-07-21 09:02:50,578 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7058823529411765 [2022-07-21 09:02:50,578 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 840 transitions. [2022-07-21 09:02:50,578 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 840 transitions. [2022-07-21 09:02:50,579 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 09:02:50,579 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 840 transitions. [2022-07-21 09:02:50,581 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 84.0) internal successors, (840), 10 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:02:50,583 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 119.0) internal successors, (1309), 11 states have internal predecessors, (1309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:02:50,583 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 119.0) internal successors, (1309), 11 states have internal predecessors, (1309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:02:50,583 INFO L186 Difference]: Start difference. First operand has 131 places, 122 transitions, 476 flow. Second operand 10 states and 840 transitions. [2022-07-21 09:02:50,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 143 transitions, 715 flow [2022-07-21 09:02:50,586 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 143 transitions, 674 flow, removed 2 selfloop flow, removed 6 redundant places. [2022-07-21 09:02:50,588 INFO L242 Difference]: Finished difference. Result has 135 places, 120 transitions, 462 flow [2022-07-21 09:02:50,588 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=437, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=462, PETRI_PLACES=135, PETRI_TRANSITIONS=120} [2022-07-21 09:02:50,591 INFO L279 CegarLoopForPetriNet]: 113 programPoint places, 22 predicate places. [2022-07-21 09:02:50,591 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 120 transitions, 462 flow [2022-07-21 09:02:50,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 81.11111111111111) internal successors, (730), 9 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:02:50,591 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 09:02:50,591 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:02:50,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-21 09:02:50,592 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-21 09:02:50,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:02:50,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1998472079, now seen corresponding path program 9 times [2022-07-21 09:02:50,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:02:50,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924134909] [2022-07-21 09:02:50,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:02:50,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:02:50,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:02:50,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 09:02:50,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:02:50,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924134909] [2022-07-21 09:02:50,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924134909] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:02:50,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:02:50,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-21 09:02:50,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397363564] [2022-07-21 09:02:50,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:02:50,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 09:02:50,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:02:50,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 09:02:50,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 09:02:50,760 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 119 [2022-07-21 09:02:50,761 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 120 transitions, 462 flow. Second operand has 9 states, 9 states have (on average 81.11111111111111) internal successors, (730), 9 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:02:50,761 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 09:02:50,761 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 119 [2022-07-21 09:02:50,761 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 09:02:50,944 INFO L129 PetriNetUnfolder]: 36/249 cut-off events. [2022-07-21 09:02:50,944 INFO L130 PetriNetUnfolder]: For 434/434 co-relation queries the response was YES. [2022-07-21 09:02:50,945 INFO L84 FinitePrefix]: Finished finitePrefix Result has 672 conditions, 249 events. 36/249 cut-off events. For 434/434 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 722 event pairs, 4 based on Foata normal form. 8/253 useless extension candidates. Maximal degree in co-relation 445. Up to 36 conditions per place. [2022-07-21 09:02:50,946 INFO L132 encePairwiseOnDemand]: 109/119 looper letters, 40 selfloop transitions, 12 changer transitions 23/139 dead transitions. [2022-07-21 09:02:50,946 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 139 transitions, 686 flow [2022-07-21 09:02:50,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-21 09:02:50,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-07-21 09:02:50,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 841 transitions. [2022-07-21 09:02:50,956 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7067226890756303 [2022-07-21 09:02:50,957 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 841 transitions. [2022-07-21 09:02:50,957 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 841 transitions. [2022-07-21 09:02:50,957 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 09:02:50,957 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 841 transitions. [2022-07-21 09:02:50,958 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 84.1) internal successors, (841), 10 states have internal predecessors, (841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:02:50,960 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 119.0) internal successors, (1309), 11 states have internal predecessors, (1309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:02:50,961 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 119.0) internal successors, (1309), 11 states have internal predecessors, (1309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:02:50,961 INFO L186 Difference]: Start difference. First operand has 135 places, 120 transitions, 462 flow. Second operand 10 states and 841 transitions. [2022-07-21 09:02:50,961 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 139 transitions, 686 flow [2022-07-21 09:02:50,974 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 139 transitions, 636 flow, removed 5 selfloop flow, removed 8 redundant places. [2022-07-21 09:02:50,976 INFO L242 Difference]: Finished difference. Result has 135 places, 107 transitions, 347 flow [2022-07-21 09:02:50,976 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=395, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=347, PETRI_PLACES=135, PETRI_TRANSITIONS=107} [2022-07-21 09:02:50,977 INFO L279 CegarLoopForPetriNet]: 113 programPoint places, 22 predicate places. [2022-07-21 09:02:50,981 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 107 transitions, 347 flow [2022-07-21 09:02:50,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 81.11111111111111) internal successors, (730), 9 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:02:50,981 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 09:02:50,981 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:02:50,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-21 09:02:50,982 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-21 09:02:50,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:02:50,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1610486507, now seen corresponding path program 10 times [2022-07-21 09:02:50,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:02:50,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502570265] [2022-07-21 09:02:50,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:02:50,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:02:51,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:02:51,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 09:02:51,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:02:51,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502570265] [2022-07-21 09:02:51,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502570265] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:02:51,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:02:51,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-21 09:02:51,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736322472] [2022-07-21 09:02:51,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:02:51,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 09:02:51,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:02:51,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 09:02:51,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 09:02:51,134 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 119 [2022-07-21 09:02:51,135 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 107 transitions, 347 flow. Second operand has 9 states, 9 states have (on average 81.11111111111111) internal successors, (730), 9 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:02:51,135 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 09:02:51,135 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 119 [2022-07-21 09:02:51,135 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 09:02:51,251 INFO L129 PetriNetUnfolder]: 6/95 cut-off events. [2022-07-21 09:02:51,251 INFO L130 PetriNetUnfolder]: For 107/107 co-relation queries the response was YES. [2022-07-21 09:02:51,252 INFO L84 FinitePrefix]: Finished finitePrefix Result has 232 conditions, 95 events. 6/95 cut-off events. For 107/107 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 75 event pairs, 0 based on Foata normal form. 6/101 useless extension candidates. Maximal degree in co-relation 187. Up to 11 conditions per place. [2022-07-21 09:02:51,252 INFO L132 encePairwiseOnDemand]: 111/119 looper letters, 0 selfloop transitions, 0 changer transitions 87/87 dead transitions. [2022-07-21 09:02:51,252 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 87 transitions, 356 flow [2022-07-21 09:02:51,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-21 09:02:51,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-07-21 09:02:51,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 807 transitions. [2022-07-21 09:02:51,255 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.6781512605042017 [2022-07-21 09:02:51,255 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 807 transitions. [2022-07-21 09:02:51,255 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 807 transitions. [2022-07-21 09:02:51,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 09:02:51,256 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 807 transitions. [2022-07-21 09:02:51,258 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 80.7) internal successors, (807), 10 states have internal predecessors, (807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:02:51,260 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 119.0) internal successors, (1309), 11 states have internal predecessors, (1309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:02:51,261 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 119.0) internal successors, (1309), 11 states have internal predecessors, (1309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:02:51,261 INFO L186 Difference]: Start difference. First operand has 135 places, 107 transitions, 347 flow. Second operand 10 states and 807 transitions. [2022-07-21 09:02:51,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 87 transitions, 356 flow [2022-07-21 09:02:51,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 87 transitions, 285 flow, removed 10 selfloop flow, removed 18 redundant places. [2022-07-21 09:02:51,263 INFO L242 Difference]: Finished difference. Result has 99 places, 0 transitions, 0 flow [2022-07-21 09:02:51,264 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=99, PETRI_TRANSITIONS=0} [2022-07-21 09:02:51,265 INFO L279 CegarLoopForPetriNet]: 113 programPoint places, -14 predicate places. [2022-07-21 09:02:51,265 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 0 transitions, 0 flow [2022-07-21 09:02:51,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 81.11111111111111) internal successors, (730), 9 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:02:51,268 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-07-21 09:02:51,268 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-07-21 09:02:51,268 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-07-21 09:02:51,270 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-07-21 09:02:51,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-21 09:02:51,270 INFO L356 BasicCegarLoop]: Path program histogram: [10] [2022-07-21 09:02:51,273 INFO L226 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-07-21 09:02:51,273 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 09:02:51,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 09:02:51 BasicIcfg [2022-07-21 09:02:51,278 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 09:02:51,279 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 09:02:51,279 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 09:02:51,279 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 09:02:51,280 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 09:02:46" (3/4) ... [2022-07-21 09:02:51,282 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-21 09:02:51,286 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-07-21 09:02:51,286 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-07-21 09:02:51,286 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-07-21 09:02:51,291 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-07-21 09:02:51,291 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-07-21 09:02:51,292 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-21 09:02:51,292 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-21 09:02:51,327 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-21 09:02:51,328 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 09:02:51,328 INFO L158 Benchmark]: Toolchain (without parser) took 5930.69ms. Allocated memory was 54.5MB in the beginning and 159.4MB in the end (delta: 104.9MB). Free memory was 33.2MB in the beginning and 91.7MB in the end (delta: -58.6MB). Peak memory consumption was 45.1MB. Max. memory is 16.1GB. [2022-07-21 09:02:51,329 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 54.5MB. Free memory was 35.9MB in the beginning and 35.8MB in the end (delta: 73.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 09:02:51,329 INFO L158 Benchmark]: CACSL2BoogieTranslator took 243.94ms. Allocated memory is still 54.5MB. Free memory was 32.9MB in the beginning and 37.6MB in the end (delta: -4.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-21 09:02:51,329 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.42ms. Allocated memory is still 54.5MB. Free memory was 37.6MB in the beginning and 35.7MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 09:02:51,330 INFO L158 Benchmark]: Boogie Preprocessor took 46.41ms. Allocated memory is still 54.5MB. Free memory was 35.7MB in the beginning and 34.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 09:02:51,330 INFO L158 Benchmark]: RCFGBuilder took 522.00ms. Allocated memory was 54.5MB in the beginning and 69.2MB in the end (delta: 14.7MB). Free memory was 34.3MB in the beginning and 45.2MB in the end (delta: -10.9MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2022-07-21 09:02:51,330 INFO L158 Benchmark]: TraceAbstraction took 5011.56ms. Allocated memory was 69.2MB in the beginning and 159.4MB in the end (delta: 90.2MB). Free memory was 44.6MB in the beginning and 94.9MB in the end (delta: -50.2MB). Peak memory consumption was 40.3MB. Max. memory is 16.1GB. [2022-07-21 09:02:51,331 INFO L158 Benchmark]: Witness Printer took 48.75ms. Allocated memory is still 159.4MB. Free memory was 94.9MB in the beginning and 91.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 09:02:51,333 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 54.5MB. Free memory was 35.9MB in the beginning and 35.8MB in the end (delta: 73.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 243.94ms. Allocated memory is still 54.5MB. Free memory was 32.9MB in the beginning and 37.6MB in the end (delta: -4.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.42ms. Allocated memory is still 54.5MB. Free memory was 37.6MB in the beginning and 35.7MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 46.41ms. Allocated memory is still 54.5MB. Free memory was 35.7MB in the beginning and 34.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 522.00ms. Allocated memory was 54.5MB in the beginning and 69.2MB in the end (delta: 14.7MB). Free memory was 34.3MB in the beginning and 45.2MB in the end (delta: -10.9MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. * TraceAbstraction took 5011.56ms. Allocated memory was 69.2MB in the beginning and 159.4MB in the end (delta: 90.2MB). Free memory was 44.6MB in the beginning and 94.9MB in the end (delta: -50.2MB). Peak memory consumption was 40.3MB. Max. memory is 16.1GB. * Witness Printer took 48.75ms. Allocated memory is still 159.4MB. Free memory was 94.9MB in the beginning and 91.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 124]: 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, 143 locations, 4 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: 4.9s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 10, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 394 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 394 mSDsluCounter, 502 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 831 mSDsCounter, 127 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1769 IncrementalHoareTripleChecker+Invalid, 1896 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 127 mSolverCounterUnsat, 170 mSDtfsCounter, 1769 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 117 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=523occurred in iteration=5, InterpolantAutomatonStates: 89, 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, 0.5s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 1010 NumberOfCodeBlocks, 1010 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1000 ConstructedInterpolants, 0 QuantifiedInterpolants, 3814 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-07-21 09:02:51,379 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