/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/bigshot_s2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 00:44:46,960 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 00:44:46,962 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 00:44:46,993 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 00:44:46,994 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 00:44:46,997 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 00:44:46,999 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 00:44:47,002 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 00:44:47,005 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 00:44:47,008 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 00:44:47,009 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 00:44:47,010 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 00:44:47,010 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 00:44:47,012 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 00:44:47,013 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 00:44:47,016 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 00:44:47,016 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 00:44:47,016 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 00:44:47,017 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 00:44:47,018 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 00:44:47,019 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 00:44:47,020 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 00:44:47,020 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 00:44:47,021 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 00:44:47,029 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 00:44:47,029 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 00:44:47,030 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 00:44:47,030 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 00:44:47,030 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 00:44:47,031 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 00:44:47,031 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 00:44:47,031 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 00:44:47,032 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 00:44:47,032 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 00:44:47,033 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 00:44:47,033 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 00:44:47,033 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 00:44:47,033 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 00:44:47,034 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 00:44:47,034 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 00:44:47,034 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 00:44:47,036 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf [2022-12-06 00:44:47,076 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 00:44:47,076 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 00:44:47,077 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 00:44:47,077 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 00:44:47,078 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 00:44:47,078 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 00:44:47,078 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 00:44:47,078 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 00:44:47,078 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 00:44:47,079 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 00:44:47,079 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 00:44:47,079 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 00:44:47,079 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 00:44:47,080 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 00:44:47,080 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 00:44:47,080 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 00:44:47,080 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 00:44:47,080 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 00:44:47,080 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 00:44:47,080 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 00:44:47,080 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 00:44:47,080 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 00:44:47,080 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 00:44:47,081 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 00:44:47,081 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 00:44:47,081 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 00:44:47,081 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 00:44:47,081 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 00:44:47,081 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 00:44:47,506 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 00:44:47,521 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 00:44:47,523 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 00:44:47,523 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 00:44:47,524 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 00:44:47,524 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/bigshot_s2.i [2022-12-06 00:44:48,472 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 00:44:48,716 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 00:44:48,717 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/bigshot_s2.i [2022-12-06 00:44:48,733 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3b0f4705/e5d1c532353e4c939bdd8843d761b65e/FLAGc677e98a3 [2022-12-06 00:44:49,034 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3b0f4705/e5d1c532353e4c939bdd8843d761b65e [2022-12-06 00:44:49,036 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 00:44:49,037 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 00:44:49,037 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 00:44:49,037 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 00:44:49,039 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 00:44:49,039 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:44:49" (1/1) ... [2022-12-06 00:44:49,040 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b192119 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:44:49, skipping insertion in model container [2022-12-06 00:44:49,040 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:44:49" (1/1) ... [2022-12-06 00:44:49,044 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 00:44:49,085 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 00:44:49,384 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/bigshot_s2.i[55203,55216] [2022-12-06 00:44:49,398 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 00:44:49,404 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 00:44:49,433 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/bigshot_s2.i[55203,55216] [2022-12-06 00:44:49,457 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 00:44:49,540 INFO L208 MainTranslator]: Completed translation [2022-12-06 00:44:49,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:44:49 WrapperNode [2022-12-06 00:44:49,541 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 00:44:49,541 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 00:44:49,541 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 00:44:49,542 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 00:44:49,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:44:49" (1/1) ... [2022-12-06 00:44:49,568 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:44:49" (1/1) ... [2022-12-06 00:44:49,590 INFO L138 Inliner]: procedures = 323, calls = 33, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2022-12-06 00:44:49,591 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 00:44:49,591 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 00:44:49,591 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 00:44:49,592 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 00:44:49,597 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:44:49" (1/1) ... [2022-12-06 00:44:49,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:44:49" (1/1) ... [2022-12-06 00:44:49,606 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:44:49" (1/1) ... [2022-12-06 00:44:49,607 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:44:49" (1/1) ... [2022-12-06 00:44:49,616 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:44:49" (1/1) ... [2022-12-06 00:44:49,618 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:44:49" (1/1) ... [2022-12-06 00:44:49,619 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:44:49" (1/1) ... [2022-12-06 00:44:49,619 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:44:49" (1/1) ... [2022-12-06 00:44:49,621 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 00:44:49,621 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 00:44:49,622 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 00:44:49,622 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 00:44:49,622 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:44:49" (1/1) ... [2022-12-06 00:44:49,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 00:44:49,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 00:44:49,647 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) [2022-12-06 00:44:49,667 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 [2022-12-06 00:44:49,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 00:44:49,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 00:44:49,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-06 00:44:49,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 00:44:49,677 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-06 00:44:49,677 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-06 00:44:49,677 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-06 00:44:49,677 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-06 00:44:49,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 00:44:49,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-06 00:44:49,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 00:44:49,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 00:44:49,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 00:44:49,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 00:44:49,678 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 00:44:49,849 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 00:44:49,850 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 00:44:49,963 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 00:44:49,968 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 00:44:49,968 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-06 00:44:49,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:44:49 BoogieIcfgContainer [2022-12-06 00:44:49,969 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 00:44:49,971 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 00:44:49,971 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 00:44:49,973 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 00:44:49,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 12:44:49" (1/3) ... [2022-12-06 00:44:49,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eafff8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 12:44:49, skipping insertion in model container [2022-12-06 00:44:49,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:44:49" (2/3) ... [2022-12-06 00:44:49,974 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eafff8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 12:44:49, skipping insertion in model container [2022-12-06 00:44:49,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:44:49" (3/3) ... [2022-12-06 00:44:49,974 INFO L112 eAbstractionObserver]: Analyzing ICFG bigshot_s2.i [2022-12-06 00:44:49,987 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 00:44:49,987 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 00:44:49,987 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 00:44:50,037 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-06 00:44:50,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 85 places, 82 transitions, 180 flow [2022-12-06 00:44:50,109 INFO L130 PetriNetUnfolder]: 4/80 cut-off events. [2022-12-06 00:44:50,110 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 00:44:50,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 80 events. 4/80 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 48. Up to 2 conditions per place. [2022-12-06 00:44:50,113 INFO L82 GeneralOperation]: Start removeDead. Operand has 85 places, 82 transitions, 180 flow [2022-12-06 00:44:50,119 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 73 places, 69 transitions, 150 flow [2022-12-06 00:44:50,123 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:44:50,134 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 73 places, 69 transitions, 150 flow [2022-12-06 00:44:50,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 73 places, 69 transitions, 150 flow [2022-12-06 00:44:50,151 INFO L130 PetriNetUnfolder]: 3/69 cut-off events. [2022-12-06 00:44:50,151 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 00:44:50,151 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 69 events. 3/69 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 40 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2022-12-06 00:44:50,152 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 73 places, 69 transitions, 150 flow [2022-12-06 00:44:50,152 INFO L188 LiptonReduction]: Number of co-enabled transitions 144 [2022-12-06 00:44:52,771 INFO L203 LiptonReduction]: Total number of compositions: 55 [2022-12-06 00:44:52,788 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 00:44:52,797 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=false, mAutomataTypeConcurrency=REPEATED_LIPTON_PN, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@25e33ad3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 00:44:52,797 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-06 00:44:52,800 INFO L130 PetriNetUnfolder]: 2/13 cut-off events. [2022-12-06 00:44:52,800 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 00:44:52,800 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 00:44:52,801 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 00:44:52,801 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 00:44:52,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 00:44:52,804 INFO L85 PathProgramCache]: Analyzing trace with hash 363103961, now seen corresponding path program 1 times [2022-12-06 00:44:52,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 00:44:52,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562553746] [2022-12-06 00:44:52,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:44:52,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 00:44:52,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:44:53,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 00:44:53,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 00:44:53,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562553746] [2022-12-06 00:44:53,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562553746] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 00:44:53,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 00:44:53,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 00:44:53,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159574328] [2022-12-06 00:44:53,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 00:44:53,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 00:44:53,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 00:44:53,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 00:44:53,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 00:44:53,045 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 14 [2022-12-06 00:44:53,046 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 14 transitions, 40 flow. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 00:44:53,046 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 00:44:53,046 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 14 [2022-12-06 00:44:53,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 00:44:53,075 INFO L130 PetriNetUnfolder]: 5/20 cut-off events. [2022-12-06 00:44:53,076 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 00:44:53,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 20 events. 5/20 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 12 event pairs, 2 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 29. Up to 17 conditions per place. [2022-12-06 00:44:53,077 INFO L137 encePairwiseOnDemand]: 12/14 looper letters, 13 selfloop transitions, 1 changer transitions 0/14 dead transitions. [2022-12-06 00:44:53,077 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 14 transitions, 68 flow [2022-12-06 00:44:53,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 00:44:53,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 00:44:53,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 15 transitions. [2022-12-06 00:44:53,084 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.35714285714285715 [2022-12-06 00:44:53,087 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 2 predicate places. [2022-12-06 00:44:53,088 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:44:53,088 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 21 places, 14 transitions, 68 flow [2022-12-06 00:44:53,091 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 21 places, 14 transitions, 68 flow [2022-12-06 00:44:53,091 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 00:44:53,092 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 00:44:53,094 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 7 [2022-12-06 00:44:53,094 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 14 transitions, 68 flow [2022-12-06 00:44:53,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 00:44:53,094 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 00:44:53,094 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 00:44:53,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 00:44:53,097 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 00:44:53,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 00:44:53,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1635382613, now seen corresponding path program 1 times [2022-12-06 00:44:53,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 00:44:53,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689777467] [2022-12-06 00:44:53,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:44:53,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 00:44:53,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:44:53,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 00:44:53,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 00:44:53,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689777467] [2022-12-06 00:44:53,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689777467] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 00:44:53,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 00:44:53,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-06 00:44:53,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814232884] [2022-12-06 00:44:53,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 00:44:53,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 00:44:53,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 00:44:53,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 00:44:53,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-06 00:44:53,374 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 13 [2022-12-06 00:44:53,374 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 14 transitions, 68 flow. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 00:44:53,374 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 00:44:53,374 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 13 [2022-12-06 00:44:53,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 00:44:53,427 INFO L130 PetriNetUnfolder]: 9/28 cut-off events. [2022-12-06 00:44:53,427 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 00:44:53,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 28 events. 9/28 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 28 event pairs, 1 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 66. Up to 25 conditions per place. [2022-12-06 00:44:53,427 INFO L137 encePairwiseOnDemand]: 9/13 looper letters, 14 selfloop transitions, 5 changer transitions 0/19 dead transitions. [2022-12-06 00:44:53,428 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 19 transitions, 126 flow [2022-12-06 00:44:53,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 00:44:53,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 00:44:53,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2022-12-06 00:44:53,429 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.36538461538461536 [2022-12-06 00:44:53,429 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 5 predicate places. [2022-12-06 00:44:53,430 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:44:53,430 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 24 places, 19 transitions, 126 flow [2022-12-06 00:44:53,431 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 24 places, 19 transitions, 126 flow [2022-12-06 00:44:53,431 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 00:44:53,431 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 00:44:53,432 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 2 [2022-12-06 00:44:53,432 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 19 transitions, 126 flow [2022-12-06 00:44:53,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 00:44:53,432 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 00:44:53,432 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 00:44:53,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 00:44:53,433 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 00:44:53,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 00:44:53,433 INFO L85 PathProgramCache]: Analyzing trace with hash 818436552, now seen corresponding path program 1 times [2022-12-06 00:44:53,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 00:44:53,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749865127] [2022-12-06 00:44:53,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:44:53,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 00:44:53,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:44:53,892 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 00:44:53,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 00:44:53,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749865127] [2022-12-06 00:44:53,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749865127] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 00:44:53,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1513283116] [2022-12-06 00:44:53,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:44:53,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 00:44:53,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 00:44:53,909 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 00:44:53,932 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-06 00:44:54,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:44:54,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 44 conjunts are in the unsatisfiable core [2022-12-06 00:44:54,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 00:44:54,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 00:44:54,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-06 00:44:54,108 INFO L321 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-12-06 00:44:54,109 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 20 treesize of output 22 [2022-12-06 00:44:54,150 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-06 00:44:54,203 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-06 00:44:54,205 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-06 00:44:54,211 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-12-06 00:44:54,212 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 23 [2022-12-06 00:44:54,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 00:44:54,270 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-06 00:44:54,270 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 30 [2022-12-06 00:44:54,292 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 00:44:54,292 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 00:44:54,450 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 00:44:54,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1513283116] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 00:44:54,450 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 00:44:54,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 5] total 17 [2022-12-06 00:44:54,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356199765] [2022-12-06 00:44:54,450 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 00:44:54,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-06 00:44:54,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 00:44:54,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-06 00:44:54,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2022-12-06 00:44:54,453 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 13 [2022-12-06 00:44:54,453 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 19 transitions, 126 flow. Second operand has 18 states, 18 states have (on average 2.0) internal successors, (36), 17 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 00:44:54,453 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 00:44:54,454 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 13 [2022-12-06 00:44:54,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 00:44:54,915 INFO L130 PetriNetUnfolder]: 14/45 cut-off events. [2022-12-06 00:44:54,916 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-06 00:44:54,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 194 conditions, 45 events. 14/45 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 70 event pairs, 0 based on Foata normal form. 2/39 useless extension candidates. Maximal degree in co-relation 157. Up to 42 conditions per place. [2022-12-06 00:44:54,916 INFO L137 encePairwiseOnDemand]: 8/13 looper letters, 18 selfloop transitions, 8 changer transitions 5/31 dead transitions. [2022-12-06 00:44:54,916 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 31 transitions, 266 flow [2022-12-06 00:44:54,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-06 00:44:54,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-06 00:44:54,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 33 transitions. [2022-12-06 00:44:54,917 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.28205128205128205 [2022-12-06 00:44:54,918 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 13 predicate places. [2022-12-06 00:44:54,918 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:44:54,918 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 31 transitions, 266 flow [2022-12-06 00:44:54,919 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 31 transitions, 266 flow [2022-12-06 00:44:54,919 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 00:44:54,920 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 00:44:54,920 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 2 [2022-12-06 00:44:54,920 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 31 transitions, 266 flow [2022-12-06 00:44:54,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.0) internal successors, (36), 17 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 00:44:54,921 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 00:44:54,921 INFO L213 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 00:44:54,926 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-12-06 00:44:55,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 00:44:55,126 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 00:44:55,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 00:44:55,126 INFO L85 PathProgramCache]: Analyzing trace with hash 129562073, now seen corresponding path program 2 times [2022-12-06 00:44:55,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 00:44:55,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877535763] [2022-12-06 00:44:55,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:44:55,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 00:44:55,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:44:55,739 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 00:44:55,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 00:44:55,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877535763] [2022-12-06 00:44:55,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877535763] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 00:44:55,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1237681630] [2022-12-06 00:44:55,740 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-06 00:44:55,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 00:44:55,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 00:44:55,742 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 00:44:55,771 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-06 00:44:55,830 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-06 00:44:55,830 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 00:44:55,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 38 conjunts are in the unsatisfiable core [2022-12-06 00:44:55,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 00:44:55,869 INFO L321 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-12-06 00:44:55,869 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 37 [2022-12-06 00:44:55,876 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-06 00:44:55,927 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-06 00:44:55,927 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-12-06 00:44:55,957 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-06 00:44:56,016 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-06 00:44:56,041 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-06 00:44:56,079 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-06 00:44:56,117 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-06 00:44:56,138 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 00:44:56,138 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 00:44:56,238 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_113 (Array Int Int))) (< 0 (select (select (store |c_#memory_int| |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest#1.base| v_ArrVal_113) |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_src#1.base|) (+ |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset13#1| 2 |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_src#1.offset|)))) is different from false [2022-12-06 00:44:56,494 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 4 not checked. [2022-12-06 00:44:56,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1237681630] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 00:44:56,494 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 00:44:56,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 26 [2022-12-06 00:44:56,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613993539] [2022-12-06 00:44:56,495 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 00:44:56,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-12-06 00:44:56,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 00:44:56,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-12-06 00:44:56,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=562, Unknown=19, NotChecked=48, Total=702 [2022-12-06 00:44:56,496 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 13 [2022-12-06 00:44:56,496 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 31 transitions, 266 flow. Second operand has 27 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 26 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 00:44:56,496 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 00:44:56,496 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 13 [2022-12-06 00:44:56,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 00:44:56,911 INFO L130 PetriNetUnfolder]: 15/48 cut-off events. [2022-12-06 00:44:56,911 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-06 00:44:56,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 255 conditions, 48 events. 15/48 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 68 event pairs, 0 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 210. Up to 45 conditions per place. [2022-12-06 00:44:56,912 INFO L137 encePairwiseOnDemand]: 9/13 looper letters, 19 selfloop transitions, 9 changer transitions 5/33 dead transitions. [2022-12-06 00:44:56,912 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 33 transitions, 348 flow [2022-12-06 00:44:56,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-06 00:44:56,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-06 00:44:56,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 31 transitions. [2022-12-06 00:44:56,914 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.2980769230769231 [2022-12-06 00:44:56,914 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 20 predicate places. [2022-12-06 00:44:56,914 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:44:56,915 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 33 transitions, 348 flow [2022-12-06 00:44:56,915 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 33 transitions, 348 flow [2022-12-06 00:44:56,915 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 00:44:56,916 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 00:44:56,916 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 2 [2022-12-06 00:44:56,916 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 33 transitions, 348 flow [2022-12-06 00:44:56,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 26 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 00:44:56,917 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 00:44:56,917 INFO L213 CegarLoopForPetriNet]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 00:44:56,921 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-06 00:44:57,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-12-06 00:44:57,122 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 00:44:57,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 00:44:57,122 INFO L85 PathProgramCache]: Analyzing trace with hash -279616050, now seen corresponding path program 3 times [2022-12-06 00:44:57,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 00:44:57,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018514929] [2022-12-06 00:44:57,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:44:57,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 00:44:57,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:44:57,451 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 00:44:57,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 00:44:57,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018514929] [2022-12-06 00:44:57,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018514929] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 00:44:57,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1269227761] [2022-12-06 00:44:57,451 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-06 00:44:57,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 00:44:57,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 00:44:57,453 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 00:44:57,519 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-06 00:44:57,576 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-12-06 00:44:57,577 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 00:44:57,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 60 conjunts are in the unsatisfiable core [2022-12-06 00:44:57,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 00:44:57,606 INFO L321 Elim1Store]: treesize reduction 21, result has 48.8 percent of original size [2022-12-06 00:44:57,606 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 34 treesize of output 45 [2022-12-06 00:44:57,611 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-06 00:44:57,665 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-06 00:44:57,720 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-06 00:44:57,725 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-06 00:44:57,725 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 18 [2022-12-06 00:44:57,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 00:44:57,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 00:44:57,755 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-06 00:44:57,757 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-06 00:44:57,757 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 30 [2022-12-06 00:44:57,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 00:44:57,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 00:44:57,790 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-06 00:44:57,792 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-06 00:44:57,793 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2022-12-06 00:44:57,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 00:44:57,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 00:44:57,828 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-06 00:44:57,829 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-06 00:44:57,829 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2022-12-06 00:44:57,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 00:44:57,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 00:44:57,880 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-06 00:44:57,881 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-06 00:44:57,881 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2022-12-06 00:44:57,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 00:44:57,911 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-06 00:44:57,911 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2022-12-06 00:44:57,961 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 00:44:57,961 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 00:46:10,917 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 5 refuted. 5 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 00:46:10,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1269227761] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 00:46:10,918 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 00:46:10,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 9] total 30 [2022-12-06 00:46:10,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265427154] [2022-12-06 00:46:10,918 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 00:46:10,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-12-06 00:46:10,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 00:46:10,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-12-06 00:46:10,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=765, Unknown=31, NotChecked=0, Total=930 [2022-12-06 00:46:10,919 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 13 [2022-12-06 00:46:10,920 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 33 transitions, 348 flow. Second operand has 31 states, 31 states have (on average 1.6451612903225807) internal successors, (51), 30 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 00:46:10,920 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 00:46:10,920 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 13 [2022-12-06 00:46:10,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 00:46:11,604 INFO L130 PetriNetUnfolder]: 13/45 cut-off events. [2022-12-06 00:46:11,605 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-06 00:46:11,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 286 conditions, 45 events. 13/45 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 63 event pairs, 0 based on Foata normal form. 1/40 useless extension candidates. Maximal degree in co-relation 233. Up to 42 conditions per place. [2022-12-06 00:46:11,605 INFO L137 encePairwiseOnDemand]: 8/13 looper letters, 0 selfloop transitions, 0 changer transitions 32/32 dead transitions. [2022-12-06 00:46:11,605 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 32 transitions, 402 flow [2022-12-06 00:46:11,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-06 00:46:11,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-06 00:46:11,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 32 transitions. [2022-12-06 00:46:11,606 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.22377622377622378 [2022-12-06 00:46:11,607 INFO L294 CegarLoopForPetriNet]: 19 programPoint places, 29 predicate places. [2022-12-06 00:46:11,607 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:46:11,607 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 32 transitions, 402 flow [2022-12-06 00:46:11,608 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 32 transitions, 402 flow [2022-12-06 00:46:11,608 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 00:46:11,609 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 00:46:11,609 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 2 [2022-12-06 00:46:11,609 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 32 transitions, 402 flow [2022-12-06 00:46:11,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 1.6451612903225807) internal successors, (51), 30 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 00:46:11,612 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-06 00:46:11,612 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-06 00:46:11,612 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-12-06 00:46:11,619 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-06 00:46:11,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 00:46:11,816 INFO L458 BasicCegarLoop]: Path program histogram: [3, 1, 1] [2022-12-06 00:46:11,818 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 00:46:11,819 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 00:46:11,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 12:46:11 BasicIcfg [2022-12-06 00:46:11,821 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 00:46:11,821 INFO L158 Benchmark]: Toolchain (without parser) took 82784.83ms. Allocated memory was 184.5MB in the beginning and 309.3MB in the end (delta: 124.8MB). Free memory was 157.4MB in the beginning and 197.5MB in the end (delta: -40.1MB). Peak memory consumption was 85.2MB. Max. memory is 8.0GB. [2022-12-06 00:46:11,822 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 184.5MB. Free memory is still 161.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 00:46:11,822 INFO L158 Benchmark]: CACSL2BoogieTranslator took 503.59ms. Allocated memory is still 184.5MB. Free memory was 157.4MB in the beginning and 124.9MB in the end (delta: 32.5MB). Peak memory consumption was 32.5MB. Max. memory is 8.0GB. [2022-12-06 00:46:11,822 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.44ms. Allocated memory is still 184.5MB. Free memory was 124.9MB in the beginning and 122.3MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-06 00:46:11,822 INFO L158 Benchmark]: Boogie Preprocessor took 29.69ms. Allocated memory is still 184.5MB. Free memory was 122.3MB in the beginning and 120.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 00:46:11,823 INFO L158 Benchmark]: RCFGBuilder took 348.06ms. Allocated memory is still 184.5MB. Free memory was 120.7MB in the beginning and 107.1MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-06 00:46:11,823 INFO L158 Benchmark]: TraceAbstraction took 81850.09ms. Allocated memory was 184.5MB in the beginning and 309.3MB in the end (delta: 124.8MB). Free memory was 106.6MB in the beginning and 197.5MB in the end (delta: -91.0MB). Peak memory consumption was 33.8MB. Max. memory is 8.0GB. [2022-12-06 00:46:11,824 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 184.5MB. Free memory is still 161.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 503.59ms. Allocated memory is still 184.5MB. Free memory was 157.4MB in the beginning and 124.9MB in the end (delta: 32.5MB). Peak memory consumption was 32.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 49.44ms. Allocated memory is still 184.5MB. Free memory was 124.9MB in the beginning and 122.3MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.69ms. Allocated memory is still 184.5MB. Free memory was 122.3MB in the beginning and 120.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 348.06ms. Allocated memory is still 184.5MB. Free memory was 120.7MB in the beginning and 107.1MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 81850.09ms. Allocated memory was 184.5MB in the beginning and 309.3MB in the end (delta: 124.8MB). Free memory was 106.6MB in the beginning and 197.5MB in the end (delta: -91.0MB). Peak memory consumption was 33.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.6s, 73 PlacesBefore, 19 PlacesAfterwards, 69 TransitionsBefore, 14 TransitionsAfterwards, 144 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 32 TrivialYvCompositions, 22 ConcurrentYvCompositions, 1 ChoiceCompositions, 55 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 87, independent: 81, independent conditional: 81, independent unconditional: 0, dependent: 6, dependent conditional: 6, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 87, independent: 81, independent conditional: 0, independent unconditional: 81, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 87, independent: 81, independent conditional: 0, independent unconditional: 81, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 87, independent: 81, independent conditional: 0, independent unconditional: 81, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 80, independent: 75, independent conditional: 0, independent unconditional: 75, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 80, independent: 75, independent conditional: 0, independent unconditional: 75, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 10, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 87, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 80, unknown conditional: 0, unknown unconditional: 80] , Statistics on independence cache: Total cache size (in pairs): 128, Positive cache size: 123, Positive conditional cache size: 0, Positive unconditional cache size: 123, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 21 PlacesBefore, 21 PlacesAfterwards, 14 TransitionsBefore, 14 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 24 PlacesBefore, 24 PlacesAfterwards, 19 TransitionsBefore, 19 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 32 PlacesBefore, 32 PlacesAfterwards, 31 TransitionsBefore, 31 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 39 PlacesBefore, 39 PlacesAfterwards, 33 TransitionsBefore, 33 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 48 PlacesBefore, 48 PlacesAfterwards, 32 TransitionsBefore, 32 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 1107]: 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 5 procedures, 104 locations, 3 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: 81.8s, OverallIterations: 5, TraceHistogramMax: 5, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 205 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 205 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 25 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 184 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 730 IncrementalHoareTripleChecker+Invalid, 939 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 184 mSolverCounterUnsat, 0 mSDtfsCounter, 730 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 148 GetRequests, 47 SyntacticMatches, 5 SemanticMatches, 96 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 473 ImplicationChecksByTransitivity, 74.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=402occurred in iteration=5, InterpolantAutomatonStates: 35, 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, 0.2s SatisfiabilityAnalysisTime, 76.0s InterpolantComputationTime, 115 NumberOfCodeBlocks, 115 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 150 ConstructedInterpolants, 30 QuantifiedInterpolants, 2896 SizeOfPredicates, 30 NumberOfNonLiveVariables, 612 ConjunctsInSsa, 142 ConjunctsInUnsatCore, 11 InterpolantComputations, 2 PerfectInterpolantSequences, 11/78 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! [2022-12-06 00:46:11,877 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...