/usr/bin/java -Xmx16000000000 -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-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-threaded-sum-3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-27 22:54:57,663 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-27 22:54:57,665 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-27 22:54:57,705 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-27 22:54:57,705 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-27 22:54:57,707 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-27 22:54:57,710 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-27 22:54:57,712 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-27 22:54:57,714 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-27 22:54:57,718 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-27 22:54:57,719 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-27 22:54:57,720 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-27 22:54:57,720 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-27 22:54:57,722 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-27 22:54:57,723 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-27 22:54:57,724 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-27 22:54:57,725 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-27 22:54:57,726 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-27 22:54:57,727 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-27 22:54:57,732 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-27 22:54:57,733 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-27 22:54:57,734 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-27 22:54:57,735 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-27 22:54:57,735 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-27 22:54:57,743 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-27 22:54:57,743 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-27 22:54:57,743 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-27 22:54:57,744 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-27 22:54:57,745 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-27 22:54:57,745 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-27 22:54:57,745 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-27 22:54:57,746 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-27 22:54:57,747 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-27 22:54:57,748 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-27 22:54:57,748 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-27 22:54:57,748 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-27 22:54:57,749 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-27 22:54:57,749 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-27 22:54:57,749 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-27 22:54:57,750 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-27 22:54:57,750 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-27 22:54:57,751 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-VariableLbe.epf [2023-01-27 22:54:57,777 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-27 22:54:57,777 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-27 22:54:57,778 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-27 22:54:57,778 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-27 22:54:57,779 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-27 22:54:57,779 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-27 22:54:57,779 INFO L138 SettingsManager]: * Use SBE=true [2023-01-27 22:54:57,779 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-27 22:54:57,780 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-27 22:54:57,780 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-27 22:54:57,780 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-27 22:54:57,780 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-27 22:54:57,781 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-27 22:54:57,781 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-27 22:54:57,781 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-27 22:54:57,781 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-27 22:54:57,781 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-27 22:54:57,781 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-27 22:54:57,781 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-27 22:54:57,781 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-27 22:54:57,781 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-27 22:54:57,782 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-27 22:54:57,782 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-27 22:54:57,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 22:54:57,782 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-27 22:54:57,782 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-27 22:54:57,782 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-27 22:54:57,782 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-27 22:54:57,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-27 22:54:57,782 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-27 22:54:57,783 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-27 22:54:57,783 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-01-27 22:54:57,998 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-27 22:54:58,019 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-27 22:54:58,021 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-27 22:54:58,022 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-27 22:54:58,022 INFO L275 PluginConnector]: CDTParser initialized [2023-01-27 22:54:58,023 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-threaded-sum-3.wvr.c [2023-01-27 22:54:59,128 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-27 22:54:59,305 INFO L351 CDTParser]: Found 1 translation units. [2023-01-27 22:54:59,306 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-threaded-sum-3.wvr.c [2023-01-27 22:54:59,310 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a766e3e34/7bf4487b5a7d4520b0cd8ffceb8b9a6d/FLAGd66c0c758 [2023-01-27 22:54:59,319 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a766e3e34/7bf4487b5a7d4520b0cd8ffceb8b9a6d [2023-01-27 22:54:59,321 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-27 22:54:59,321 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-27 22:54:59,322 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-27 22:54:59,322 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-27 22:54:59,325 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-27 22:54:59,325 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 10:54:59" (1/1) ... [2023-01-27 22:54:59,326 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49d0d23b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:54:59, skipping insertion in model container [2023-01-27 22:54:59,326 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 10:54:59" (1/1) ... [2023-01-27 22:54:59,337 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-27 22:54:59,355 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-27 22:54:59,539 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-threaded-sum-3.wvr.c[2957,2970] [2023-01-27 22:54:59,548 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 22:54:59,558 INFO L203 MainTranslator]: Completed pre-run [2023-01-27 22:54:59,593 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-threaded-sum-3.wvr.c[2957,2970] [2023-01-27 22:54:59,594 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 22:54:59,599 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 22:54:59,599 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 22:54:59,604 INFO L208 MainTranslator]: Completed translation [2023-01-27 22:54:59,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:54:59 WrapperNode [2023-01-27 22:54:59,604 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-27 22:54:59,605 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-27 22:54:59,605 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-27 22:54:59,605 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-27 22:54:59,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:54:59" (1/1) ... [2023-01-27 22:54:59,614 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:54:59" (1/1) ... [2023-01-27 22:54:59,629 INFO L138 Inliner]: procedures = 22, calls = 46, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 82 [2023-01-27 22:54:59,629 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-27 22:54:59,630 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-27 22:54:59,630 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-27 22:54:59,630 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-27 22:54:59,638 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:54:59" (1/1) ... [2023-01-27 22:54:59,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:54:59" (1/1) ... [2023-01-27 22:54:59,640 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:54:59" (1/1) ... [2023-01-27 22:54:59,640 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:54:59" (1/1) ... [2023-01-27 22:54:59,646 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:54:59" (1/1) ... [2023-01-27 22:54:59,649 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:54:59" (1/1) ... [2023-01-27 22:54:59,650 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:54:59" (1/1) ... [2023-01-27 22:54:59,651 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:54:59" (1/1) ... [2023-01-27 22:54:59,653 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-27 22:54:59,654 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-27 22:54:59,654 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-27 22:54:59,654 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-27 22:54:59,654 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:54:59" (1/1) ... [2023-01-27 22:54:59,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 22:54:59,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 22:54:59,684 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-01-27 22:54:59,686 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-01-27 22:54:59,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-27 22:54:59,710 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-01-27 22:54:59,710 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-01-27 22:54:59,710 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-01-27 22:54:59,710 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-01-27 22:54:59,710 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-01-27 22:54:59,710 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-01-27 22:54:59,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-27 22:54:59,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-27 22:54:59,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-27 22:54:59,711 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-01-27 22:54:59,711 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-01-27 22:54:59,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-27 22:54:59,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-27 22:54:59,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-27 22:54:59,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-27 22:54:59,712 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-27 22:54:59,797 INFO L236 CfgBuilder]: Building ICFG [2023-01-27 22:54:59,799 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-27 22:55:00,038 INFO L277 CfgBuilder]: Performing block encoding [2023-01-27 22:55:00,106 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-27 22:55:00,106 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-01-27 22:55:00,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 10:55:00 BoogieIcfgContainer [2023-01-27 22:55:00,108 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-27 22:55:00,109 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-27 22:55:00,110 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-27 22:55:00,112 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-27 22:55:00,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 10:54:59" (1/3) ... [2023-01-27 22:55:00,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dca3734 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 10:55:00, skipping insertion in model container [2023-01-27 22:55:00,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:54:59" (2/3) ... [2023-01-27 22:55:00,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dca3734 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 10:55:00, skipping insertion in model container [2023-01-27 22:55:00,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 10:55:00" (3/3) ... [2023-01-27 22:55:00,114 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-threaded-sum-3.wvr.c [2023-01-27 22:55:00,128 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-27 22:55:00,128 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-27 22:55:00,128 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-27 22:55:00,186 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-01-27 22:55:00,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 113 places, 111 transitions, 246 flow [2023-01-27 22:55:00,258 INFO L130 PetriNetUnfolder]: 8/108 cut-off events. [2023-01-27 22:55:00,259 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-27 22:55:00,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 108 events. 8/108 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 73. Up to 2 conditions per place. [2023-01-27 22:55:00,264 INFO L82 GeneralOperation]: Start removeDead. Operand has 113 places, 111 transitions, 246 flow [2023-01-27 22:55:00,267 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 100 places, 98 transitions, 214 flow [2023-01-27 22:55:00,270 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 22:55:00,277 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 98 transitions, 214 flow [2023-01-27 22:55:00,279 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 100 places, 98 transitions, 214 flow [2023-01-27 22:55:00,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 98 transitions, 214 flow [2023-01-27 22:55:00,304 INFO L130 PetriNetUnfolder]: 8/98 cut-off events. [2023-01-27 22:55:00,305 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-27 22:55:00,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 98 events. 8/98 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 58 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 73. Up to 2 conditions per place. [2023-01-27 22:55:00,307 INFO L119 LiptonReduction]: Number of co-enabled transitions 1010 [2023-01-27 22:55:03,210 INFO L134 LiptonReduction]: Checked pairs total: 1725 [2023-01-27 22:55:03,211 INFO L136 LiptonReduction]: Total number of compositions: 84 [2023-01-27 22:55:03,224 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-27 22:55:03,229 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@43dd90d9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 22:55:03,230 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-01-27 22:55:03,237 INFO L130 PetriNetUnfolder]: 3/24 cut-off events. [2023-01-27 22:55:03,237 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-27 22:55:03,237 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 22:55:03,237 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 22:55:03,238 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-27 22:55:03,242 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 22:55:03,242 INFO L85 PathProgramCache]: Analyzing trace with hash -807744710, now seen corresponding path program 1 times [2023-01-27 22:55:03,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 22:55:03,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720314579] [2023-01-27 22:55:03,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 22:55:03,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 22:55:03,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 22:55:03,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 22:55:03,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 22:55:03,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720314579] [2023-01-27 22:55:03,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720314579] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 22:55:03,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 22:55:03,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-27 22:55:03,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253679190] [2023-01-27 22:55:03,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 22:55:03,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-27 22:55:03,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 22:55:03,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-27 22:55:03,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-01-27 22:55:03,964 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 195 [2023-01-27 22:55:03,966 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 25 transitions, 68 flow. Second operand has 4 states, 4 states have (on average 87.5) internal successors, (350), 4 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 22:55:03,966 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 22:55:03,966 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 195 [2023-01-27 22:55:03,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 22:55:04,173 INFO L130 PetriNetUnfolder]: 767/1086 cut-off events. [2023-01-27 22:55:04,173 INFO L131 PetriNetUnfolder]: For 62/62 co-relation queries the response was YES. [2023-01-27 22:55:04,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2257 conditions, 1086 events. 767/1086 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 3950 event pairs, 109 based on Foata normal form. 0/841 useless extension candidates. Maximal degree in co-relation 2171. Up to 681 conditions per place. [2023-01-27 22:55:04,181 INFO L137 encePairwiseOnDemand]: 189/195 looper letters, 50 selfloop transitions, 7 changer transitions 0/58 dead transitions. [2023-01-27 22:55:04,181 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 58 transitions, 260 flow [2023-01-27 22:55:04,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-27 22:55:04,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-27 22:55:04,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 474 transitions. [2023-01-27 22:55:04,194 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48615384615384616 [2023-01-27 22:55:04,194 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 474 transitions. [2023-01-27 22:55:04,195 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 474 transitions. [2023-01-27 22:55:04,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 22:55:04,198 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 474 transitions. [2023-01-27 22:55:04,200 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 94.8) internal successors, (474), 5 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 22:55:04,204 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 195.0) internal successors, (1170), 6 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 22:55:04,205 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 195.0) internal successors, (1170), 6 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 22:55:04,206 INFO L175 Difference]: Start difference. First operand has 32 places, 25 transitions, 68 flow. Second operand 5 states and 474 transitions. [2023-01-27 22:55:04,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 58 transitions, 260 flow [2023-01-27 22:55:04,210 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 58 transitions, 240 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-01-27 22:55:04,211 INFO L231 Difference]: Finished difference. Result has 33 places, 31 transitions, 108 flow [2023-01-27 22:55:04,213 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=108, PETRI_PLACES=33, PETRI_TRANSITIONS=31} [2023-01-27 22:55:04,215 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 1 predicate places. [2023-01-27 22:55:04,216 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 31 transitions, 108 flow [2023-01-27 22:55:04,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.5) internal successors, (350), 4 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 22:55:04,216 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 22:55:04,216 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 22:55:04,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-27 22:55:04,217 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-27 22:55:04,217 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 22:55:04,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1820244098, now seen corresponding path program 1 times [2023-01-27 22:55:04,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 22:55:04,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337093171] [2023-01-27 22:55:04,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 22:55:04,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 22:55:04,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 22:55:04,453 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 22:55:04,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 22:55:04,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337093171] [2023-01-27 22:55:04,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337093171] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 22:55:04,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 22:55:04,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-01-27 22:55:04,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972340263] [2023-01-27 22:55:04,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 22:55:04,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-27 22:55:04,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 22:55:04,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-27 22:55:04,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-01-27 22:55:04,457 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 195 [2023-01-27 22:55:04,458 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 31 transitions, 108 flow. Second operand has 5 states, 5 states have (on average 87.2) internal successors, (436), 5 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 22:55:04,458 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 22:55:04,458 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 195 [2023-01-27 22:55:04,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 22:55:04,678 INFO L130 PetriNetUnfolder]: 997/1420 cut-off events. [2023-01-27 22:55:04,678 INFO L131 PetriNetUnfolder]: For 684/684 co-relation queries the response was YES. [2023-01-27 22:55:04,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3697 conditions, 1420 events. 997/1420 cut-off events. For 684/684 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 5321 event pairs, 149 based on Foata normal form. 48/1468 useless extension candidates. Maximal degree in co-relation 1963. Up to 672 conditions per place. [2023-01-27 22:55:04,686 INFO L137 encePairwiseOnDemand]: 189/195 looper letters, 59 selfloop transitions, 10 changer transitions 2/71 dead transitions. [2023-01-27 22:55:04,687 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 71 transitions, 373 flow [2023-01-27 22:55:04,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-27 22:55:04,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-27 22:55:04,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 564 transitions. [2023-01-27 22:55:04,689 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48205128205128206 [2023-01-27 22:55:04,690 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 564 transitions. [2023-01-27 22:55:04,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 564 transitions. [2023-01-27 22:55:04,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 22:55:04,690 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 564 transitions. [2023-01-27 22:55:04,691 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 94.0) internal successors, (564), 6 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 22:55:04,693 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 195.0) internal successors, (1365), 7 states have internal predecessors, (1365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 22:55:04,694 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 195.0) internal successors, (1365), 7 states have internal predecessors, (1365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 22:55:04,694 INFO L175 Difference]: Start difference. First operand has 33 places, 31 transitions, 108 flow. Second operand 6 states and 564 transitions. [2023-01-27 22:55:04,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 71 transitions, 373 flow [2023-01-27 22:55:04,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 71 transitions, 368 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-27 22:55:04,698 INFO L231 Difference]: Finished difference. Result has 41 places, 38 transitions, 189 flow [2023-01-27 22:55:04,698 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=189, PETRI_PLACES=41, PETRI_TRANSITIONS=38} [2023-01-27 22:55:04,699 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 9 predicate places. [2023-01-27 22:55:04,699 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 38 transitions, 189 flow [2023-01-27 22:55:04,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.2) internal successors, (436), 5 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 22:55:04,700 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 22:55:04,700 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 22:55:04,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-27 22:55:04,700 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-27 22:55:04,701 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 22:55:04,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1826456622, now seen corresponding path program 2 times [2023-01-27 22:55:04,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 22:55:04,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752503316] [2023-01-27 22:55:04,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 22:55:04,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 22:55:04,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 22:55:04,907 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 22:55:04,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 22:55:04,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752503316] [2023-01-27 22:55:04,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752503316] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 22:55:04,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 22:55:04,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-01-27 22:55:04,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989783761] [2023-01-27 22:55:04,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 22:55:04,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-27 22:55:04,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 22:55:04,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-27 22:55:04,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-01-27 22:55:04,910 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 195 [2023-01-27 22:55:04,911 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 38 transitions, 189 flow. Second operand has 5 states, 5 states have (on average 85.2) internal successors, (426), 5 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 22:55:04,911 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 22:55:04,911 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 195 [2023-01-27 22:55:04,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 22:55:05,256 INFO L130 PetriNetUnfolder]: 1327/1918 cut-off events. [2023-01-27 22:55:05,256 INFO L131 PetriNetUnfolder]: For 3235/3235 co-relation queries the response was YES. [2023-01-27 22:55:05,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6078 conditions, 1918 events. 1327/1918 cut-off events. For 3235/3235 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 7964 event pairs, 281 based on Foata normal form. 16/1934 useless extension candidates. Maximal degree in co-relation 3318. Up to 1027 conditions per place. [2023-01-27 22:55:05,269 INFO L137 encePairwiseOnDemand]: 188/195 looper letters, 80 selfloop transitions, 22 changer transitions 10/112 dead transitions. [2023-01-27 22:55:05,269 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 112 transitions, 819 flow [2023-01-27 22:55:05,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-27 22:55:05,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-27 22:55:05,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 559 transitions. [2023-01-27 22:55:05,271 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4777777777777778 [2023-01-27 22:55:05,271 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 559 transitions. [2023-01-27 22:55:05,271 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 559 transitions. [2023-01-27 22:55:05,272 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 22:55:05,272 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 559 transitions. [2023-01-27 22:55:05,273 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 93.16666666666667) internal successors, (559), 6 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 22:55:05,275 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 195.0) internal successors, (1365), 7 states have internal predecessors, (1365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 22:55:05,275 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 195.0) internal successors, (1365), 7 states have internal predecessors, (1365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 22:55:05,276 INFO L175 Difference]: Start difference. First operand has 41 places, 38 transitions, 189 flow. Second operand 6 states and 559 transitions. [2023-01-27 22:55:05,276 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 112 transitions, 819 flow [2023-01-27 22:55:05,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 112 transitions, 818 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-27 22:55:05,285 INFO L231 Difference]: Finished difference. Result has 47 places, 56 transitions, 397 flow [2023-01-27 22:55:05,285 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=397, PETRI_PLACES=47, PETRI_TRANSITIONS=56} [2023-01-27 22:55:05,286 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 15 predicate places. [2023-01-27 22:55:05,286 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 56 transitions, 397 flow [2023-01-27 22:55:05,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.2) internal successors, (426), 5 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 22:55:05,287 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 22:55:05,287 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 22:55:05,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-27 22:55:05,287 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-27 22:55:05,287 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 22:55:05,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1205848806, now seen corresponding path program 3 times [2023-01-27 22:55:05,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 22:55:05,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733058857] [2023-01-27 22:55:05,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 22:55:05,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 22:55:05,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 22:55:05,598 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 22:55:05,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 22:55:05,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733058857] [2023-01-27 22:55:05,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733058857] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 22:55:05,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2004656560] [2023-01-27 22:55:05,599 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-01-27 22:55:05,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 22:55:05,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 22:55:05,605 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-27 22:55:05,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-01-27 22:55:05,684 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-01-27 22:55:05,684 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-27 22:55:05,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 10 conjunts are in the unsatisfiable core [2023-01-27 22:55:05,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 22:55:05,830 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-27 22:55:05,830 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-01-27 22:55:05,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2004656560] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 22:55:05,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-01-27 22:55:05,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-01-27 22:55:05,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084437517] [2023-01-27 22:55:05,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 22:55:05,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-27 22:55:05,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 22:55:05,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-27 22:55:05,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-01-27 22:55:05,833 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 195 [2023-01-27 22:55:05,833 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 56 transitions, 397 flow. Second operand has 4 states, 4 states have (on average 93.75) internal successors, (375), 4 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 22:55:05,834 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 22:55:05,834 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 195 [2023-01-27 22:55:05,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 22:55:06,215 INFO L130 PetriNetUnfolder]: 1893/2749 cut-off events. [2023-01-27 22:55:06,215 INFO L131 PetriNetUnfolder]: For 7782/8005 co-relation queries the response was YES. [2023-01-27 22:55:06,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10958 conditions, 2749 events. 1893/2749 cut-off events. For 7782/8005 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 13309 event pairs, 177 based on Foata normal form. 257/2968 useless extension candidates. Maximal degree in co-relation 6508. Up to 1507 conditions per place. [2023-01-27 22:55:06,237 INFO L137 encePairwiseOnDemand]: 189/195 looper letters, 122 selfloop transitions, 16 changer transitions 0/141 dead transitions. [2023-01-27 22:55:06,237 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 141 transitions, 1320 flow [2023-01-27 22:55:06,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-27 22:55:06,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-27 22:55:06,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 503 transitions. [2023-01-27 22:55:06,239 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5158974358974359 [2023-01-27 22:55:06,239 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 503 transitions. [2023-01-27 22:55:06,239 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 503 transitions. [2023-01-27 22:55:06,239 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 22:55:06,239 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 503 transitions. [2023-01-27 22:55:06,240 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 100.6) internal successors, (503), 5 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 22:55:06,242 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 195.0) internal successors, (1170), 6 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 22:55:06,243 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 195.0) internal successors, (1170), 6 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 22:55:06,244 INFO L175 Difference]: Start difference. First operand has 47 places, 56 transitions, 397 flow. Second operand 5 states and 503 transitions. [2023-01-27 22:55:06,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 141 transitions, 1320 flow [2023-01-27 22:55:06,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 141 transitions, 1320 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-01-27 22:55:06,258 INFO L231 Difference]: Finished difference. Result has 53 places, 69 transitions, 579 flow [2023-01-27 22:55:06,261 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=397, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=579, PETRI_PLACES=53, PETRI_TRANSITIONS=69} [2023-01-27 22:55:06,263 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 21 predicate places. [2023-01-27 22:55:06,263 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 69 transitions, 579 flow [2023-01-27 22:55:06,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 93.75) internal successors, (375), 4 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 22:55:06,263 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 22:55:06,263 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 22:55:06,272 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-01-27 22:55:06,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 22:55:06,470 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-27 22:55:06,470 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 22:55:06,470 INFO L85 PathProgramCache]: Analyzing trace with hash 582364476, now seen corresponding path program 1 times [2023-01-27 22:55:06,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 22:55:06,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031113753] [2023-01-27 22:55:06,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 22:55:06,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 22:55:06,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 22:55:08,030 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 22:55:08,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 22:55:08,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031113753] [2023-01-27 22:55:08,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031113753] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 22:55:08,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1959266338] [2023-01-27 22:55:08,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 22:55:08,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 22:55:08,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 22:55:08,033 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-27 22:55:08,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-01-27 22:55:08,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 22:55:08,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 29 conjunts are in the unsatisfiable core [2023-01-27 22:55:08,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 22:55:09,142 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 22:55:09,142 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-27 22:55:12,024 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 22:55:12,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1959266338] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-27 22:55:12,024 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-27 22:55:12,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 20 [2023-01-27 22:55:12,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071483105] [2023-01-27 22:55:12,025 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-27 22:55:12,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-01-27 22:55:12,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 22:55:12,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-01-27 22:55:12,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=358, Unknown=0, NotChecked=0, Total=462 [2023-01-27 22:55:12,028 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 195 [2023-01-27 22:55:12,029 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 69 transitions, 579 flow. Second operand has 22 states, 22 states have (on average 74.86363636363636) internal successors, (1647), 22 states have internal predecessors, (1647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 22:55:12,029 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 22:55:12,029 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 195 [2023-01-27 22:55:12,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 22:55:25,017 INFO L130 PetriNetUnfolder]: 9961/14297 cut-off events. [2023-01-27 22:55:25,017 INFO L131 PetriNetUnfolder]: For 48654/48654 co-relation queries the response was YES. [2023-01-27 22:55:25,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62631 conditions, 14297 events. 9961/14297 cut-off events. For 48654/48654 co-relation queries the response was YES. Maximal size of possible extension queue 643. Compared 80101 event pairs, 358 based on Foata normal form. 17/14314 useless extension candidates. Maximal degree in co-relation 29726. Up to 3559 conditions per place. [2023-01-27 22:55:25,129 INFO L137 encePairwiseOnDemand]: 186/195 looper letters, 357 selfloop transitions, 428 changer transitions 218/1003 dead transitions. [2023-01-27 22:55:25,129 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 1003 transitions, 9772 flow [2023-01-27 22:55:25,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2023-01-27 22:55:25,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2023-01-27 22:55:25,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 4542 transitions. [2023-01-27 22:55:25,143 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4234965034965035 [2023-01-27 22:55:25,143 INFO L72 ComplementDD]: Start complementDD. Operand 55 states and 4542 transitions. [2023-01-27 22:55:25,143 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 4542 transitions. [2023-01-27 22:55:25,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 22:55:25,146 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 55 states and 4542 transitions. [2023-01-27 22:55:25,158 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 56 states, 55 states have (on average 82.58181818181818) internal successors, (4542), 55 states have internal predecessors, (4542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 22:55:25,174 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 56 states, 56 states have (on average 195.0) internal successors, (10920), 56 states have internal predecessors, (10920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 22:55:25,178 INFO L81 ComplementDD]: Finished complementDD. Result has 56 states, 56 states have (on average 195.0) internal successors, (10920), 56 states have internal predecessors, (10920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 22:55:25,178 INFO L175 Difference]: Start difference. First operand has 53 places, 69 transitions, 579 flow. Second operand 55 states and 4542 transitions. [2023-01-27 22:55:25,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 1003 transitions, 9772 flow [2023-01-27 22:55:25,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 1003 transitions, 9730 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-27 22:55:25,296 INFO L231 Difference]: Finished difference. Result has 120 places, 516 transitions, 6333 flow [2023-01-27 22:55:25,296 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=570, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=55, PETRI_FLOW=6333, PETRI_PLACES=120, PETRI_TRANSITIONS=516} [2023-01-27 22:55:25,297 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 88 predicate places. [2023-01-27 22:55:25,297 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 516 transitions, 6333 flow [2023-01-27 22:55:25,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 74.86363636363636) internal successors, (1647), 22 states have internal predecessors, (1647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 22:55:25,298 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 22:55:25,298 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 22:55:25,308 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-01-27 22:55:25,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 22:55:25,505 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-27 22:55:25,506 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 22:55:25,506 INFO L85 PathProgramCache]: Analyzing trace with hash -508209307, now seen corresponding path program 1 times [2023-01-27 22:55:25,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 22:55:25,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191529691] [2023-01-27 22:55:25,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 22:55:25,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 22:55:25,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 22:55:26,095 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 22:55:26,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 22:55:26,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191529691] [2023-01-27 22:55:26,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191529691] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 22:55:26,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1133707430] [2023-01-27 22:55:26,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 22:55:26,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 22:55:26,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 22:55:26,101 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-27 22:55:26,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-01-27 22:55:26,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 22:55:26,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 13 conjunts are in the unsatisfiable core [2023-01-27 22:55:26,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 22:55:26,249 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-27 22:55:26,249 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-27 22:55:26,381 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 22:55:26,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1133707430] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-27 22:55:26,382 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-27 22:55:26,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 5] total 14 [2023-01-27 22:55:26,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105807000] [2023-01-27 22:55:26,382 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-27 22:55:26,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-01-27 22:55:26,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 22:55:26,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-01-27 22:55:26,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2023-01-27 22:55:26,391 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 195 [2023-01-27 22:55:26,392 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 516 transitions, 6333 flow. Second operand has 14 states, 14 states have (on average 80.64285714285714) internal successors, (1129), 14 states have internal predecessors, (1129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 22:55:26,392 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 22:55:26,392 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 195 [2023-01-27 22:55:26,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 22:55:28,294 INFO L130 PetriNetUnfolder]: 9010/12765 cut-off events. [2023-01-27 22:55:28,294 INFO L131 PetriNetUnfolder]: For 63887/63887 co-relation queries the response was YES. [2023-01-27 22:55:28,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61827 conditions, 12765 events. 9010/12765 cut-off events. For 63887/63887 co-relation queries the response was YES. Maximal size of possible extension queue 619. Compared 69410 event pairs, 105 based on Foata normal form. 914/13679 useless extension candidates. Maximal degree in co-relation 61701. Up to 4649 conditions per place. [2023-01-27 22:55:28,385 INFO L137 encePairwiseOnDemand]: 186/195 looper letters, 683 selfloop transitions, 304 changer transitions 0/987 dead transitions. [2023-01-27 22:55:28,386 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 987 transitions, 13183 flow [2023-01-27 22:55:28,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-01-27 22:55:28,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-01-27 22:55:28,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1131 transitions. [2023-01-27 22:55:28,389 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4461538461538462 [2023-01-27 22:55:28,389 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1131 transitions. [2023-01-27 22:55:28,389 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1131 transitions. [2023-01-27 22:55:28,390 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 22:55:28,390 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1131 transitions. [2023-01-27 22:55:28,392 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 87.0) internal successors, (1131), 13 states have internal predecessors, (1131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 22:55:28,395 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 195.0) internal successors, (2730), 14 states have internal predecessors, (2730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 22:55:28,396 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 195.0) internal successors, (2730), 14 states have internal predecessors, (2730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 22:55:28,396 INFO L175 Difference]: Start difference. First operand has 120 places, 516 transitions, 6333 flow. Second operand 13 states and 1131 transitions. [2023-01-27 22:55:28,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 987 transitions, 13183 flow [2023-01-27 22:55:28,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 987 transitions, 11004 flow, removed 1085 selfloop flow, removed 11 redundant places. [2023-01-27 22:55:28,612 INFO L231 Difference]: Finished difference. Result has 115 places, 543 transitions, 6488 flow [2023-01-27 22:55:28,612 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=3834, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=397, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=160, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=6488, PETRI_PLACES=115, PETRI_TRANSITIONS=543} [2023-01-27 22:55:28,613 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 83 predicate places. [2023-01-27 22:55:28,613 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 543 transitions, 6488 flow [2023-01-27 22:55:28,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 80.64285714285714) internal successors, (1129), 14 states have internal predecessors, (1129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 22:55:28,614 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 22:55:28,614 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 22:55:28,621 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-01-27 22:55:28,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 22:55:28,819 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-27 22:55:28,819 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 22:55:28,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1579273131, now seen corresponding path program 2 times [2023-01-27 22:55:28,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 22:55:28,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412519494] [2023-01-27 22:55:28,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 22:55:28,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 22:55:28,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 22:55:29,073 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 22:55:29,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 22:55:29,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412519494] [2023-01-27 22:55:29,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412519494] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 22:55:29,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [136718088] [2023-01-27 22:55:29,074 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-27 22:55:29,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 22:55:29,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 22:55:29,075 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-27 22:55:29,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-01-27 22:55:29,167 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-01-27 22:55:29,167 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-27 22:55:29,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 13 conjunts are in the unsatisfiable core [2023-01-27 22:55:29,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 22:55:29,247 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 22:55:29,247 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-27 22:55:29,339 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 22:55:29,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [136718088] provided 1 perfect and 1 imperfect interpolant sequences [2023-01-27 22:55:29,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-01-27 22:55:29,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 12 [2023-01-27 22:55:29,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436496510] [2023-01-27 22:55:29,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 22:55:29,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-27 22:55:29,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 22:55:29,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-27 22:55:29,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-01-27 22:55:29,341 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 195 [2023-01-27 22:55:29,341 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 543 transitions, 6488 flow. Second operand has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 22:55:29,341 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 22:55:29,342 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 195 [2023-01-27 22:55:29,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 22:55:31,260 INFO L130 PetriNetUnfolder]: 11204/16037 cut-off events. [2023-01-27 22:55:31,261 INFO L131 PetriNetUnfolder]: For 80035/80035 co-relation queries the response was YES. [2023-01-27 22:55:31,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85237 conditions, 16037 events. 11204/16037 cut-off events. For 80035/80035 co-relation queries the response was YES. Maximal size of possible extension queue 818. Compared 92771 event pairs, 793 based on Foata normal form. 382/16419 useless extension candidates. Maximal degree in co-relation 76365. Up to 5546 conditions per place. [2023-01-27 22:55:31,390 INFO L137 encePairwiseOnDemand]: 187/195 looper letters, 820 selfloop transitions, 321 changer transitions 0/1141 dead transitions. [2023-01-27 22:55:31,391 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 1141 transitions, 14891 flow [2023-01-27 22:55:31,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-27 22:55:31,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-27 22:55:31,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 583 transitions. [2023-01-27 22:55:31,393 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4982905982905983 [2023-01-27 22:55:31,393 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 583 transitions. [2023-01-27 22:55:31,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 583 transitions. [2023-01-27 22:55:31,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 22:55:31,393 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 583 transitions. [2023-01-27 22:55:31,395 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 97.16666666666667) internal successors, (583), 6 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 22:55:31,396 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 195.0) internal successors, (1365), 7 states have internal predecessors, (1365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 22:55:31,397 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 195.0) internal successors, (1365), 7 states have internal predecessors, (1365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 22:55:31,397 INFO L175 Difference]: Start difference. First operand has 115 places, 543 transitions, 6488 flow. Second operand 6 states and 583 transitions. [2023-01-27 22:55:31,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 1141 transitions, 14891 flow [2023-01-27 22:55:31,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 1141 transitions, 14549 flow, removed 169 selfloop flow, removed 2 redundant places. [2023-01-27 22:55:31,855 INFO L231 Difference]: Finished difference. Result has 122 places, 749 transitions, 10016 flow [2023-01-27 22:55:31,855 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=6303, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=543, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=146, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=303, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=10016, PETRI_PLACES=122, PETRI_TRANSITIONS=749} [2023-01-27 22:55:31,856 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 90 predicate places. [2023-01-27 22:55:31,856 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 749 transitions, 10016 flow [2023-01-27 22:55:31,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 22:55:31,857 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 22:55:31,857 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 22:55:31,869 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-01-27 22:55:32,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 22:55:32,062 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-27 22:55:32,062 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 22:55:32,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1321199193, now seen corresponding path program 3 times [2023-01-27 22:55:32,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 22:55:32,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910500717] [2023-01-27 22:55:32,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 22:55:32,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 22:55:32,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 22:55:32,450 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 22:55:32,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 22:55:32,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910500717] [2023-01-27 22:55:32,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910500717] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 22:55:32,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243828340] [2023-01-27 22:55:32,451 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-01-27 22:55:32,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 22:55:32,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 22:55:32,452 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-27 22:55:32,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-01-27 22:55:32,545 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-01-27 22:55:32,545 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-27 22:55:32,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 16 conjunts are in the unsatisfiable core [2023-01-27 22:55:32,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 22:55:32,626 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 22:55:32,627 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-27 22:55:32,713 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 22:55:32,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [243828340] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-27 22:55:32,716 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-27 22:55:32,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-01-27 22:55:32,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245229343] [2023-01-27 22:55:32,717 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-27 22:55:32,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-01-27 22:55:32,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 22:55:32,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-01-27 22:55:32,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-01-27 22:55:32,721 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 195 [2023-01-27 22:55:32,722 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 749 transitions, 10016 flow. Second operand has 11 states, 11 states have (on average 85.63636363636364) internal successors, (942), 11 states have internal predecessors, (942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 22:55:32,722 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 22:55:32,722 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 195 [2023-01-27 22:55:32,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 22:55:39,622 INFO L130 PetriNetUnfolder]: 30041/43061 cut-off events. [2023-01-27 22:55:39,622 INFO L131 PetriNetUnfolder]: For 308392/308413 co-relation queries the response was YES. [2023-01-27 22:55:39,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 259551 conditions, 43061 events. 30041/43061 cut-off events. For 308392/308413 co-relation queries the response was YES. Maximal size of possible extension queue 2100. Compared 282442 event pairs, 1506 based on Foata normal form. 2002/45051 useless extension candidates. Maximal degree in co-relation 219571. Up to 9707 conditions per place. [2023-01-27 22:55:40,070 INFO L137 encePairwiseOnDemand]: 186/195 looper letters, 1854 selfloop transitions, 1817 changer transitions 4/3678 dead transitions. [2023-01-27 22:55:40,070 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 3678 transitions, 54751 flow [2023-01-27 22:55:40,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-01-27 22:55:40,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2023-01-27 22:55:40,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 3208 transitions. [2023-01-27 22:55:40,079 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47003663003663004 [2023-01-27 22:55:40,079 INFO L72 ComplementDD]: Start complementDD. Operand 35 states and 3208 transitions. [2023-01-27 22:55:40,079 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 3208 transitions. [2023-01-27 22:55:40,081 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 22:55:40,081 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 35 states and 3208 transitions. [2023-01-27 22:55:40,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 36 states, 35 states have (on average 91.65714285714286) internal successors, (3208), 35 states have internal predecessors, (3208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 22:55:40,098 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 36 states, 36 states have (on average 195.0) internal successors, (7020), 36 states have internal predecessors, (7020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 22:55:40,099 INFO L81 ComplementDD]: Finished complementDD. Result has 36 states, 36 states have (on average 195.0) internal successors, (7020), 36 states have internal predecessors, (7020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 22:55:40,099 INFO L175 Difference]: Start difference. First operand has 122 places, 749 transitions, 10016 flow. Second operand 35 states and 3208 transitions. [2023-01-27 22:55:40,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 3678 transitions, 54751 flow [2023-01-27 22:55:42,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 3678 transitions, 54197 flow, removed 277 selfloop flow, removed 0 redundant places. [2023-01-27 22:55:42,322 INFO L231 Difference]: Finished difference. Result has 180 places, 2322 transitions, 38001 flow [2023-01-27 22:55:42,323 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=9934, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=749, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=400, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=320, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=38001, PETRI_PLACES=180, PETRI_TRANSITIONS=2322} [2023-01-27 22:55:42,324 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 148 predicate places. [2023-01-27 22:55:42,324 INFO L495 AbstractCegarLoop]: Abstraction has has 180 places, 2322 transitions, 38001 flow [2023-01-27 22:55:42,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 85.63636363636364) internal successors, (942), 11 states have internal predecessors, (942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 22:55:42,325 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 22:55:42,325 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 22:55:42,330 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-01-27 22:55:42,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 22:55:42,530 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-27 22:55:42,531 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 22:55:42,531 INFO L85 PathProgramCache]: Analyzing trace with hash 587723179, now seen corresponding path program 4 times [2023-01-27 22:55:42,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 22:55:42,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103836560] [2023-01-27 22:55:42,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 22:55:42,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 22:55:42,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 22:55:42,863 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 22:55:42,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 22:55:42,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103836560] [2023-01-27 22:55:42,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103836560] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 22:55:42,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [816864362] [2023-01-27 22:55:42,864 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-01-27 22:55:42,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 22:55:42,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 22:55:42,865 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-27 22:55:42,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-01-27 22:55:42,934 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-01-27 22:55:42,935 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-27 22:55:42,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 26 conjunts are in the unsatisfiable core [2023-01-27 22:55:42,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 22:55:43,289 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 22:55:43,290 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-27 22:55:44,072 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 22:55:44,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [816864362] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-27 22:55:44,073 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-27 22:55:44,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 9] total 19 [2023-01-27 22:55:44,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736934498] [2023-01-27 22:55:44,073 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-27 22:55:44,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-01-27 22:55:44,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 22:55:44,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-01-27 22:55:44,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2023-01-27 22:55:44,075 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 195 [2023-01-27 22:55:44,077 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 2322 transitions, 38001 flow. Second operand has 20 states, 20 states have (on average 73.85) internal successors, (1477), 20 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 22:55:44,077 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 22:55:44,077 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 195 [2023-01-27 22:55:44,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 22:56:20,050 INFO L130 PetriNetUnfolder]: 58565/85538 cut-off events. [2023-01-27 22:56:20,050 INFO L131 PetriNetUnfolder]: For 1634340/1634340 co-relation queries the response was YES. [2023-01-27 22:56:20,644 INFO L83 FinitePrefix]: Finished finitePrefix Result has 649136 conditions, 85538 events. 58565/85538 cut-off events. For 1634340/1634340 co-relation queries the response was YES. Maximal size of possible extension queue 4373. Compared 637032 event pairs, 307 based on Foata normal form. 1440/86978 useless extension candidates. Maximal degree in co-relation 578261. Up to 18905 conditions per place. [2023-01-27 22:56:21,098 INFO L137 encePairwiseOnDemand]: 181/195 looper letters, 2940 selfloop transitions, 5332 changer transitions 51/8323 dead transitions. [2023-01-27 22:56:21,098 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 8323 transitions, 149772 flow [2023-01-27 22:56:21,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2023-01-27 22:56:21,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2023-01-27 22:56:21,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 9390 transitions. [2023-01-27 22:56:21,113 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4012820512820513 [2023-01-27 22:56:21,113 INFO L72 ComplementDD]: Start complementDD. Operand 120 states and 9390 transitions. [2023-01-27 22:56:21,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 120 states and 9390 transitions. [2023-01-27 22:56:21,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 22:56:21,116 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 120 states and 9390 transitions. [2023-01-27 22:56:21,131 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 121 states, 120 states have (on average 78.25) internal successors, (9390), 120 states have internal predecessors, (9390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 22:56:21,155 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 121 states, 121 states have (on average 195.0) internal successors, (23595), 121 states have internal predecessors, (23595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 22:56:21,160 INFO L81 ComplementDD]: Finished complementDD. Result has 121 states, 121 states have (on average 195.0) internal successors, (23595), 121 states have internal predecessors, (23595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 22:56:21,160 INFO L175 Difference]: Start difference. First operand has 180 places, 2322 transitions, 38001 flow. Second operand 120 states and 9390 transitions. [2023-01-27 22:56:21,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 8323 transitions, 149772 flow [2023-01-27 22:56:41,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 8323 transitions, 144313 flow, removed 2706 selfloop flow, removed 2 redundant places. [2023-01-27 22:56:41,558 INFO L231 Difference]: Finished difference. Result has 375 places, 7036 transitions, 131192 flow [2023-01-27 22:56:41,560 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=36431, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1255, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=566, PETRI_DIFFERENCE_SUBTRAHEND_STATES=120, PETRI_FLOW=131192, PETRI_PLACES=375, PETRI_TRANSITIONS=7036} [2023-01-27 22:56:41,561 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 343 predicate places. [2023-01-27 22:56:41,561 INFO L495 AbstractCegarLoop]: Abstraction has has 375 places, 7036 transitions, 131192 flow [2023-01-27 22:56:41,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 73.85) internal successors, (1477), 20 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 22:56:41,562 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 22:56:41,562 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 22:56:41,576 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-01-27 22:56:41,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 22:56:41,766 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-27 22:56:41,767 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 22:56:41,767 INFO L85 PathProgramCache]: Analyzing trace with hash 243404620, now seen corresponding path program 2 times [2023-01-27 22:56:41,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 22:56:41,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982444863] [2023-01-27 22:56:41,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 22:56:41,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 22:56:41,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 22:56:43,596 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 22:56:43,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 22:56:43,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982444863] [2023-01-27 22:56:43,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982444863] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 22:56:43,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [18490764] [2023-01-27 22:56:43,597 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-27 22:56:43,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 22:56:43,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 22:56:43,601 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-27 22:56:43,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-01-27 22:56:43,700 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-01-27 22:56:43,700 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-27 22:56:43,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 32 conjunts are in the unsatisfiable core [2023-01-27 22:56:43,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 22:56:44,630 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 22:56:44,631 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-27 22:56:45,836 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 22:56:45,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [18490764] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-27 22:56:45,837 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-27 22:56:45,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 9] total 25 [2023-01-27 22:56:45,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959121262] [2023-01-27 22:56:45,837 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-27 22:56:45,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-01-27 22:56:45,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 22:56:45,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-01-27 22:56:45,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=552, Unknown=0, NotChecked=0, Total=702 [2023-01-27 22:56:45,839 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 195 [2023-01-27 22:56:45,841 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 375 places, 7036 transitions, 131192 flow. Second operand has 27 states, 27 states have (on average 72.55555555555556) internal successors, (1959), 27 states have internal predecessors, (1959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 22:56:45,841 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 22:56:45,841 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 195 [2023-01-27 22:56:45,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 22:57:27,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-27 22:59:45,051 INFO L130 PetriNetUnfolder]: 96931/142700 cut-off events. [2023-01-27 22:59:45,051 INFO L131 PetriNetUnfolder]: For 4896647/4896647 co-relation queries the response was YES. [2023-01-27 22:59:47,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1332375 conditions, 142700 events. 96931/142700 cut-off events. For 4896647/4896647 co-relation queries the response was YES. Maximal size of possible extension queue 7203. Compared 1147816 event pairs, 511 based on Foata normal form. 224/142924 useless extension candidates. Maximal degree in co-relation 1330552. Up to 37194 conditions per place. [2023-01-27 22:59:48,538 INFO L137 encePairwiseOnDemand]: 182/195 looper letters, 4962 selfloop transitions, 9580 changer transitions 1420/15962 dead transitions. [2023-01-27 22:59:48,538 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 516 places, 15962 transitions, 328894 flow [2023-01-27 22:59:48,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 142 states. [2023-01-27 22:59:48,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2023-01-27 22:59:48,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 11112 transitions. [2023-01-27 22:59:48,552 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40130010834236185 [2023-01-27 22:59:48,552 INFO L72 ComplementDD]: Start complementDD. Operand 142 states and 11112 transitions. [2023-01-27 22:59:48,552 INFO L73 IsDeterministic]: Start isDeterministic. Operand 142 states and 11112 transitions. [2023-01-27 22:59:48,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 22:59:48,555 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 142 states and 11112 transitions. [2023-01-27 22:59:48,568 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 143 states, 142 states have (on average 78.25352112676056) internal successors, (11112), 142 states have internal predecessors, (11112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 22:59:48,594 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 143 states, 143 states have (on average 195.0) internal successors, (27885), 143 states have internal predecessors, (27885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 22:59:48,602 INFO L81 ComplementDD]: Finished complementDD. Result has 143 states, 143 states have (on average 195.0) internal successors, (27885), 143 states have internal predecessors, (27885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 22:59:48,602 INFO L175 Difference]: Start difference. First operand has 375 places, 7036 transitions, 131192 flow. Second operand 142 states and 11112 transitions. [2023-01-27 22:59:48,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 516 places, 15962 transitions, 328894 flow [2023-01-27 23:05:02,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 510 places, 15962 transitions, 313521 flow, removed 7650 selfloop flow, removed 6 redundant places. [2023-01-27 23:05:02,403 INFO L231 Difference]: Finished difference. Result has 593 places, 12545 transitions, 262274 flow [2023-01-27 23:05:02,410 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=124367, PETRI_DIFFERENCE_MINUEND_PLACES=369, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7036, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4550, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1542, PETRI_DIFFERENCE_SUBTRAHEND_STATES=142, PETRI_FLOW=262274, PETRI_PLACES=593, PETRI_TRANSITIONS=12545} [2023-01-27 23:05:02,410 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 561 predicate places. [2023-01-27 23:05:02,411 INFO L495 AbstractCegarLoop]: Abstraction has has 593 places, 12545 transitions, 262274 flow [2023-01-27 23:05:02,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 72.55555555555556) internal successors, (1959), 27 states have internal predecessors, (1959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 23:05:02,411 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 23:05:02,412 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 23:05:02,420 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-01-27 23:05:02,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 23:05:02,620 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-27 23:05:02,621 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 23:05:02,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1754784722, now seen corresponding path program 3 times [2023-01-27 23:05:02,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 23:05:02,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703558055] [2023-01-27 23:05:02,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 23:05:02,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 23:05:02,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 23:05:08,038 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 23:05:08,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 23:05:08,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703558055] [2023-01-27 23:05:08,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703558055] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 23:05:08,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [520294251] [2023-01-27 23:05:08,039 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-01-27 23:05:08,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 23:05:08,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 23:05:08,040 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-27 23:05:08,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-01-27 23:05:08,214 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-01-27 23:05:08,215 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-27 23:05:08,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 30 conjunts are in the unsatisfiable core [2023-01-27 23:05:08,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 23:05:10,287 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 23:05:10,288 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-27 23:05:15,084 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 23:05:15,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [520294251] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-27 23:05:15,085 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-27 23:05:15,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 26 [2023-01-27 23:05:15,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169103643] [2023-01-27 23:05:15,085 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-27 23:05:15,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-01-27 23:05:15,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 23:05:15,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-01-27 23:05:15,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=605, Unknown=0, NotChecked=0, Total=756 [2023-01-27 23:05:15,088 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 195 [2023-01-27 23:05:15,089 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 593 places, 12545 transitions, 262274 flow. Second operand has 28 states, 28 states have (on average 72.67857142857143) internal successors, (2035), 28 states have internal predecessors, (2035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 23:05:15,089 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 23:05:15,089 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 195 [2023-01-27 23:05:15,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 23:06:02,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-27 23:06:27,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-27 23:08:35,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] Received shutdown request... [2023-01-27 23:08:41,421 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-27 23:08:41,421 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-27 23:08:41,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2023-01-27 23:08:41,647 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-01-27 23:08:41,652 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-01-27 23:08:41,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-01-27 23:08:41,848 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (28states, 70/195 universal loopers) in iteration 11,while PetriNetUnfolder was constructing finite prefix that currently has 206449 conditions, 22482 events (15028/22481 cut-off events. For 760826/760826 co-relation queries the response was YES. Maximal size of possible extension queue 5896. Compared 182417 event pairs, 84 based on Foata normal form. 0/28380 useless extension candidates. Maximal degree in co-relation 206233. Up to 5944 conditions per place.). [2023-01-27 23:08:41,849 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-01-27 23:08:41,849 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-01-27 23:08:41,849 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-01-27 23:08:41,850 INFO L445 BasicCegarLoop]: Path program histogram: [4, 3, 3, 1] [2023-01-27 23:08:41,852 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-27 23:08:41,852 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-27 23:08:41,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 11:08:41 BasicIcfg [2023-01-27 23:08:41,854 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-27 23:08:41,854 INFO L158 Benchmark]: Toolchain (without parser) took 822532.54ms. Allocated memory was 373.3MB in the beginning and 11.1GB in the end (delta: 10.7GB). Free memory was 333.0MB in the beginning and 9.1GB in the end (delta: -8.8GB). Peak memory consumption was 1.9GB. Max. memory is 16.0GB. [2023-01-27 23:08:41,854 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 373.3MB. Free memory is still 321.9MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-27 23:08:41,854 INFO L158 Benchmark]: CACSL2BoogieTranslator took 282.03ms. Allocated memory is still 373.3MB. Free memory was 332.8MB in the beginning and 321.3MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-01-27 23:08:41,855 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.45ms. Allocated memory is still 373.3MB. Free memory was 321.3MB in the beginning and 319.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-27 23:08:41,855 INFO L158 Benchmark]: Boogie Preprocessor took 23.58ms. Allocated memory is still 373.3MB. Free memory was 319.5MB in the beginning and 318.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-27 23:08:41,855 INFO L158 Benchmark]: RCFGBuilder took 454.22ms. Allocated memory is still 373.3MB. Free memory was 318.1MB in the beginning and 299.5MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-01-27 23:08:41,855 INFO L158 Benchmark]: TraceAbstraction took 821744.21ms. Allocated memory was 373.3MB in the beginning and 11.1GB in the end (delta: 10.7GB). Free memory was 298.9MB in the beginning and 9.1GB in the end (delta: -8.8GB). Peak memory consumption was 1.9GB. Max. memory is 16.0GB. [2023-01-27 23:08:41,856 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 373.3MB. Free memory is still 321.9MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 282.03ms. Allocated memory is still 373.3MB. Free memory was 332.8MB in the beginning and 321.3MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 24.45ms. Allocated memory is still 373.3MB. Free memory was 321.3MB in the beginning and 319.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 23.58ms. Allocated memory is still 373.3MB. Free memory was 319.5MB in the beginning and 318.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 454.22ms. Allocated memory is still 373.3MB. Free memory was 318.1MB in the beginning and 299.5MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * TraceAbstraction took 821744.21ms. Allocated memory was 373.3MB in the beginning and 11.1GB in the end (delta: 10.7GB). Free memory was 298.9MB in the beginning and 9.1GB in the end (delta: -8.8GB). Peak memory consumption was 1.9GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.9s, 100 PlacesBefore, 32 PlacesAfterwards, 98 TransitionsBefore, 25 TransitionsAfterwards, 1010 CoEnabledTransitionPairs, 6 FixpointIterations, 48 TrivialSequentialCompositions, 19 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 6 ConcurrentYvCompositions, 5 ChoiceCompositions, 84 TotalNumberOfCompositions, 1725 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1440, independent: 1399, independent conditional: 0, independent unconditional: 1399, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 531, independent: 522, independent conditional: 0, independent unconditional: 522, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1440, independent: 877, independent conditional: 0, independent unconditional: 877, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 531, unknown conditional: 0, unknown unconditional: 531] , Statistics on independence cache: Total cache size (in pairs): 84, Positive cache size: 79, Positive conditional cache size: 0, Positive unconditional cache size: 79, 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 - TimeoutResultAtElement [Line: 118]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (28states, 70/195 universal loopers) in iteration 11,while PetriNetUnfolder was constructing finite prefix that currently has 206449 conditions, 22482 events (15028/22481 cut-off events. For 760826/760826 co-relation queries the response was YES. Maximal size of possible extension queue 5896. Compared 182417 event pairs, 84 based on Foata normal form. 0/28380 useless extension candidates. Maximal degree in co-relation 206233. Up to 5944 conditions per place.). - TimeoutResultAtElement [Line: 112]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (28states, 70/195 universal loopers) in iteration 11,while PetriNetUnfolder was constructing finite prefix that currently has 206449 conditions, 22482 events (15028/22481 cut-off events. For 760826/760826 co-relation queries the response was YES. Maximal size of possible extension queue 5896. Compared 182417 event pairs, 84 based on Foata normal form. 0/28380 useless extension candidates. Maximal degree in co-relation 206233. Up to 5944 conditions per place.). - TimeoutResultAtElement [Line: 111]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (28states, 70/195 universal loopers) in iteration 11,while PetriNetUnfolder was constructing finite prefix that currently has 206449 conditions, 22482 events (15028/22481 cut-off events. For 760826/760826 co-relation queries the response was YES. Maximal size of possible extension queue 5896. Compared 182417 event pairs, 84 based on Foata normal form. 0/28380 useless extension candidates. Maximal degree in co-relation 206233. Up to 5944 conditions per place.). - TimeoutResultAtElement [Line: 110]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (28states, 70/195 universal loopers) in iteration 11,while PetriNetUnfolder was constructing finite prefix that currently has 206449 conditions, 22482 events (15028/22481 cut-off events. For 760826/760826 co-relation queries the response was YES. Maximal size of possible extension queue 5896. Compared 182417 event pairs, 84 based on Foata normal form. 0/28380 useless extension candidates. Maximal degree in co-relation 206233. Up to 5944 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 129 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 821.6s, OverallIterations: 11, TraceHistogramMax: 2, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 789.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 2778 SdHoareTripleChecker+Valid, 37.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2778 mSDsluCounter, 29 SdHoareTripleChecker+Invalid, 35.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 424 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11884 IncrementalHoareTripleChecker+Invalid, 12310 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 424 mSolverCounterUnsat, 21 mSDtfsCounter, 11884 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 826 GetRequests, 297 SyntacticMatches, 4 SemanticMatches, 525 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20360 ImplicationChecksByTransitivity, 203.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=262274occurred in iteration=10, InterpolantAutomatonStates: 393, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 25.8s InterpolantComputationTime, 429 NumberOfCodeBlocks, 427 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 566 ConstructedInterpolants, 0 QuantifiedInterpolants, 19361 SizeOfPredicates, 73 NumberOfNonLiveVariables, 1409 ConjunctsInSsa, 169 ConjunctsInUnsatCore, 26 InterpolantComputations, 5 PerfectInterpolantSequences, 12/55 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown