/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/pthread-wmm/rfi000_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-27 18:15:10,897 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-27 18:15:10,898 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-27 18:15:10,919 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-27 18:15:10,920 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-27 18:15:10,921 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-27 18:15:10,921 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-27 18:15:10,923 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-27 18:15:10,924 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-27 18:15:10,925 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-27 18:15:10,925 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-27 18:15:10,926 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-27 18:15:10,926 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-27 18:15:10,927 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-27 18:15:10,928 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-27 18:15:10,928 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-27 18:15:10,929 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-27 18:15:10,930 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-27 18:15:10,931 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-27 18:15:10,938 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-27 18:15:10,945 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-27 18:15:10,947 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-27 18:15:10,948 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-27 18:15:10,949 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-27 18:15:10,950 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-01-27 18:15:10,953 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-27 18:15:10,953 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-27 18:15:10,954 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-27 18:15:10,954 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-27 18:15:10,955 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-27 18:15:10,955 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-27 18:15:10,955 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-27 18:15:10,956 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-27 18:15:10,956 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-27 18:15:10,956 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-27 18:15:10,957 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-27 18:15:10,965 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 18:15:10,980 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-27 18:15:10,980 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-27 18:15:10,984 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-27 18:15:10,985 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-27 18:15:10,986 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-27 18:15:10,986 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-27 18:15:10,986 INFO L138 SettingsManager]: * Use SBE=true [2023-01-27 18:15:10,986 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-27 18:15:10,987 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-27 18:15:10,987 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-27 18:15:10,987 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-27 18:15:10,987 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-27 18:15:10,987 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-27 18:15:10,988 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-27 18:15:10,988 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-27 18:15:10,988 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-27 18:15:10,988 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-27 18:15:10,988 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-27 18:15:10,988 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-27 18:15:10,988 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-27 18:15:10,988 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-27 18:15:10,988 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-27 18:15:10,988 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-27 18:15:10,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 18:15:10,989 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-27 18:15:10,989 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-27 18:15:10,989 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-27 18:15:10,989 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-27 18:15:10,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-27 18:15:10,990 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-27 18:15:10,990 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-27 18:15:10,990 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-01-27 18:15:11,294 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-27 18:15:11,333 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-27 18:15:11,337 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-27 18:15:11,338 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-27 18:15:11,338 INFO L275 PluginConnector]: CDTParser initialized [2023-01-27 18:15:11,339 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi000_tso.i [2023-01-27 18:15:13,081 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-27 18:15:13,506 INFO L351 CDTParser]: Found 1 translation units. [2023-01-27 18:15:13,506 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi000_tso.i [2023-01-27 18:15:13,537 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/326ac0c84/1aee8a456da74ddbb62b913ad262d625/FLAG8ac432083 [2023-01-27 18:15:13,552 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/326ac0c84/1aee8a456da74ddbb62b913ad262d625 [2023-01-27 18:15:13,570 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-27 18:15:13,572 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-27 18:15:13,583 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-27 18:15:13,584 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-27 18:15:13,586 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-27 18:15:13,586 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 06:15:13" (1/1) ... [2023-01-27 18:15:13,587 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15019487 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:15:13, skipping insertion in model container [2023-01-27 18:15:13,587 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 06:15:13" (1/1) ... [2023-01-27 18:15:13,591 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-27 18:15:13,662 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-27 18:15:13,938 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi000_tso.i[944,957] [2023-01-27 18:15:14,195 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 18:15:14,203 INFO L203 MainTranslator]: Completed pre-run [2023-01-27 18:15:14,213 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi000_tso.i[944,957] [2023-01-27 18:15:14,288 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 18:15:14,334 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:15:14,334 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:15:14,343 INFO L208 MainTranslator]: Completed translation [2023-01-27 18:15:14,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:15:14 WrapperNode [2023-01-27 18:15:14,344 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-27 18:15:14,345 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-27 18:15:14,345 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-27 18:15:14,345 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-27 18:15:14,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:15:14" (1/1) ... [2023-01-27 18:15:14,427 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:15:14" (1/1) ... [2023-01-27 18:15:14,456 INFO L138 Inliner]: procedures = 175, calls = 45, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 170 [2023-01-27 18:15:14,457 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-27 18:15:14,457 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-27 18:15:14,457 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-27 18:15:14,457 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-27 18:15:14,467 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:15:14" (1/1) ... [2023-01-27 18:15:14,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:15:14" (1/1) ... [2023-01-27 18:15:14,477 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:15:14" (1/1) ... [2023-01-27 18:15:14,477 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:15:14" (1/1) ... [2023-01-27 18:15:14,483 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:15:14" (1/1) ... [2023-01-27 18:15:14,484 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:15:14" (1/1) ... [2023-01-27 18:15:14,486 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:15:14" (1/1) ... [2023-01-27 18:15:14,487 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:15:14" (1/1) ... [2023-01-27 18:15:14,489 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-27 18:15:14,490 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-27 18:15:14,490 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-27 18:15:14,490 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-27 18:15:14,491 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:15:14" (1/1) ... [2023-01-27 18:15:14,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 18:15:14,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:15:14,540 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 18:15:14,553 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 18:15:14,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-27 18:15:14,577 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-01-27 18:15:14,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-27 18:15:14,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-27 18:15:14,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-27 18:15:14,578 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-01-27 18:15:14,578 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-01-27 18:15:14,582 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-01-27 18:15:14,582 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-01-27 18:15:14,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-27 18:15:14,582 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-01-27 18:15:14,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-27 18:15:14,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-27 18:15:14,583 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 18:15:14,789 INFO L236 CfgBuilder]: Building ICFG [2023-01-27 18:15:14,790 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-27 18:15:15,362 INFO L277 CfgBuilder]: Performing block encoding [2023-01-27 18:15:15,558 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-27 18:15:15,558 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-27 18:15:15,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 06:15:15 BoogieIcfgContainer [2023-01-27 18:15:15,559 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-27 18:15:15,561 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-27 18:15:15,561 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-27 18:15:15,563 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-27 18:15:15,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 06:15:13" (1/3) ... [2023-01-27 18:15:15,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fb4a6fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 06:15:15, skipping insertion in model container [2023-01-27 18:15:15,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:15:14" (2/3) ... [2023-01-27 18:15:15,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fb4a6fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 06:15:15, skipping insertion in model container [2023-01-27 18:15:15,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 06:15:15" (3/3) ... [2023-01-27 18:15:15,585 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi000_tso.i [2023-01-27 18:15:15,613 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-27 18:15:15,613 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-01-27 18:15:15,613 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-27 18:15:15,731 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-27 18:15:15,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 90 transitions, 190 flow [2023-01-27 18:15:15,831 INFO L130 PetriNetUnfolder]: 2/88 cut-off events. [2023-01-27 18:15:15,831 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 18:15:15,858 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 88 events. 2/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 53. Up to 2 conditions per place. [2023-01-27 18:15:15,858 INFO L82 GeneralOperation]: Start removeDead. Operand has 95 places, 90 transitions, 190 flow [2023-01-27 18:15:15,861 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 93 places, 88 transitions, 182 flow [2023-01-27 18:15:15,863 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 18:15:15,869 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 88 transitions, 182 flow [2023-01-27 18:15:15,870 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 88 transitions, 182 flow [2023-01-27 18:15:15,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 88 transitions, 182 flow [2023-01-27 18:15:15,889 INFO L130 PetriNetUnfolder]: 2/88 cut-off events. [2023-01-27 18:15:15,890 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 18:15:15,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 88 events. 2/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 53. Up to 2 conditions per place. [2023-01-27 18:15:15,891 INFO L119 LiptonReduction]: Number of co-enabled transitions 1156 [2023-01-27 18:15:20,209 INFO L134 LiptonReduction]: Checked pairs total: 3494 [2023-01-27 18:15:20,209 INFO L136 LiptonReduction]: Total number of compositions: 76 [2023-01-27 18:15:20,226 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-27 18:15:20,235 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;@11cca93b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 18:15:20,235 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-01-27 18:15:20,241 INFO L130 PetriNetUnfolder]: 1/11 cut-off events. [2023-01-27 18:15:20,241 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 18:15:20,242 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:15:20,242 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-01-27 18:15:20,243 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-27 18:15:20,247 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:15:20,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1153820224, now seen corresponding path program 1 times [2023-01-27 18:15:20,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:15:20,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92589059] [2023-01-27 18:15:20,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:15:20,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:15:20,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:15:20,813 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 18:15:20,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:15:20,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92589059] [2023-01-27 18:15:20,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92589059] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:15:20,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:15:20,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-01-27 18:15:20,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104031026] [2023-01-27 18:15:20,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:15:20,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 18:15:20,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:15:20,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 18:15:20,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-27 18:15:20,901 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 166 [2023-01-27 18:15:20,902 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 22 transitions, 50 flow. Second operand has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 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 18:15:20,903 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:15:20,903 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 166 [2023-01-27 18:15:20,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:15:21,290 INFO L130 PetriNetUnfolder]: 294/501 cut-off events. [2023-01-27 18:15:21,290 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-27 18:15:21,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1014 conditions, 501 events. 294/501 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2036 event pairs, 69 based on Foata normal form. 28/472 useless extension candidates. Maximal degree in co-relation 1004. Up to 366 conditions per place. [2023-01-27 18:15:21,295 INFO L137 encePairwiseOnDemand]: 162/166 looper letters, 22 selfloop transitions, 2 changer transitions 4/29 dead transitions. [2023-01-27 18:15:21,295 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 29 transitions, 120 flow [2023-01-27 18:15:21,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-27 18:15:21,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-27 18:15:21,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 259 transitions. [2023-01-27 18:15:21,312 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5200803212851406 [2023-01-27 18:15:21,316 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 259 transitions. [2023-01-27 18:15:21,317 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 259 transitions. [2023-01-27 18:15:21,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:15:21,320 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 259 transitions. [2023-01-27 18:15:21,322 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 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 18:15:21,343 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 0 states have call successors, (0), 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 18:15:21,344 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 0 states have call successors, (0), 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 18:15:21,360 INFO L175 Difference]: Start difference. First operand has 28 places, 22 transitions, 50 flow. Second operand 3 states and 259 transitions. [2023-01-27 18:15:21,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 29 transitions, 120 flow [2023-01-27 18:15:21,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 29 transitions, 118 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-27 18:15:21,364 INFO L231 Difference]: Finished difference. Result has 27 places, 18 transitions, 44 flow [2023-01-27 18:15:21,365 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=44, PETRI_PLACES=27, PETRI_TRANSITIONS=18} [2023-01-27 18:15:21,369 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -1 predicate places. [2023-01-27 18:15:21,370 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 18 transitions, 44 flow [2023-01-27 18:15:21,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 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 18:15:21,370 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:15:21,370 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:15:21,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-27 18:15:21,370 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-27 18:15:21,376 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:15:21,376 INFO L85 PathProgramCache]: Analyzing trace with hash 721288587, now seen corresponding path program 1 times [2023-01-27 18:15:21,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:15:21,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502550166] [2023-01-27 18:15:21,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:15:21,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:15:21,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:15:23,148 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 18:15:23,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:15:23,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502550166] [2023-01-27 18:15:23,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502550166] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:15:23,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:15:23,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-27 18:15:23,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498057303] [2023-01-27 18:15:23,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:15:23,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-27 18:15:23,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:15:23,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-27 18:15:23,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-01-27 18:15:23,151 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 166 [2023-01-27 18:15:23,152 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 18 transitions, 44 flow. Second operand has 5 states, 5 states have (on average 63.6) internal successors, (318), 5 states have internal predecessors, (318), 0 states have call successors, (0), 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 18:15:23,152 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:15:23,152 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 166 [2023-01-27 18:15:23,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:15:23,556 INFO L130 PetriNetUnfolder]: 337/591 cut-off events. [2023-01-27 18:15:23,557 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2023-01-27 18:15:23,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1234 conditions, 591 events. 337/591 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2397 event pairs, 100 based on Foata normal form. 41/632 useless extension candidates. Maximal degree in co-relation 1224. Up to 439 conditions per place. [2023-01-27 18:15:23,564 INFO L137 encePairwiseOnDemand]: 156/166 looper letters, 27 selfloop transitions, 10 changer transitions 22/59 dead transitions. [2023-01-27 18:15:23,564 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 59 transitions, 254 flow [2023-01-27 18:15:23,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-27 18:15:23,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-01-27 18:15:23,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 496 transitions. [2023-01-27 18:15:23,568 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4268502581755594 [2023-01-27 18:15:23,568 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 496 transitions. [2023-01-27 18:15:23,568 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 496 transitions. [2023-01-27 18:15:23,569 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:15:23,570 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 496 transitions. [2023-01-27 18:15:23,571 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 70.85714285714286) internal successors, (496), 7 states have internal predecessors, (496), 0 states have call successors, (0), 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 18:15:23,574 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 166.0) internal successors, (1328), 8 states have internal predecessors, (1328), 0 states have call successors, (0), 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 18:15:23,575 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 166.0) internal successors, (1328), 8 states have internal predecessors, (1328), 0 states have call successors, (0), 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 18:15:23,575 INFO L175 Difference]: Start difference. First operand has 27 places, 18 transitions, 44 flow. Second operand 7 states and 496 transitions. [2023-01-27 18:15:23,575 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 59 transitions, 254 flow [2023-01-27 18:15:23,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 59 transitions, 244 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-27 18:15:23,578 INFO L231 Difference]: Finished difference. Result has 34 places, 26 transitions, 117 flow [2023-01-27 18:15:23,578 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=117, PETRI_PLACES=34, PETRI_TRANSITIONS=26} [2023-01-27 18:15:23,579 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 6 predicate places. [2023-01-27 18:15:23,579 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 26 transitions, 117 flow [2023-01-27 18:15:23,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 63.6) internal successors, (318), 5 states have internal predecessors, (318), 0 states have call successors, (0), 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 18:15:23,579 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:15:23,579 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:15:23,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-27 18:15:23,580 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-27 18:15:23,580 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:15:23,580 INFO L85 PathProgramCache]: Analyzing trace with hash 885095490, now seen corresponding path program 1 times [2023-01-27 18:15:23,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:15:23,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844793204] [2023-01-27 18:15:23,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:15:23,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:15:23,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:15:24,709 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 18:15:24,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:15:24,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844793204] [2023-01-27 18:15:24,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844793204] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:15:24,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:15:24,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-27 18:15:24,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493435689] [2023-01-27 18:15:24,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:15:24,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-27 18:15:24,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:15:24,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-27 18:15:24,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-01-27 18:15:24,712 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 166 [2023-01-27 18:15:24,712 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 26 transitions, 117 flow. Second operand has 5 states, 5 states have (on average 63.8) internal successors, (319), 5 states have internal predecessors, (319), 0 states have call successors, (0), 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 18:15:24,712 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:15:24,712 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 166 [2023-01-27 18:15:24,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:15:25,151 INFO L130 PetriNetUnfolder]: 271/481 cut-off events. [2023-01-27 18:15:25,152 INFO L131 PetriNetUnfolder]: For 424/424 co-relation queries the response was YES. [2023-01-27 18:15:25,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1521 conditions, 481 events. 271/481 cut-off events. For 424/424 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1814 event pairs, 89 based on Foata normal form. 39/520 useless extension candidates. Maximal degree in co-relation 1506. Up to 229 conditions per place. [2023-01-27 18:15:25,155 INFO L137 encePairwiseOnDemand]: 158/166 looper letters, 30 selfloop transitions, 7 changer transitions 21/58 dead transitions. [2023-01-27 18:15:25,156 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 58 transitions, 365 flow [2023-01-27 18:15:25,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-27 18:15:25,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-01-27 18:15:25,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 485 transitions. [2023-01-27 18:15:25,162 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4173838209982788 [2023-01-27 18:15:25,162 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 485 transitions. [2023-01-27 18:15:25,162 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 485 transitions. [2023-01-27 18:15:25,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:15:25,163 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 485 transitions. [2023-01-27 18:15:25,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 69.28571428571429) internal successors, (485), 7 states have internal predecessors, (485), 0 states have call successors, (0), 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 18:15:25,165 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 166.0) internal successors, (1328), 8 states have internal predecessors, (1328), 0 states have call successors, (0), 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 18:15:25,165 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 166.0) internal successors, (1328), 8 states have internal predecessors, (1328), 0 states have call successors, (0), 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 18:15:25,166 INFO L175 Difference]: Start difference. First operand has 34 places, 26 transitions, 117 flow. Second operand 7 states and 485 transitions. [2023-01-27 18:15:25,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 58 transitions, 365 flow [2023-01-27 18:15:25,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 58 transitions, 357 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-01-27 18:15:25,188 INFO L231 Difference]: Finished difference. Result has 41 places, 29 transitions, 174 flow [2023-01-27 18:15:25,189 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=174, PETRI_PLACES=41, PETRI_TRANSITIONS=29} [2023-01-27 18:15:25,190 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 13 predicate places. [2023-01-27 18:15:25,192 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 29 transitions, 174 flow [2023-01-27 18:15:25,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 63.8) internal successors, (319), 5 states have internal predecessors, (319), 0 states have call successors, (0), 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 18:15:25,193 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:15:25,193 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:15:25,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-27 18:15:25,194 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-27 18:15:25,194 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:15:25,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1532632972, now seen corresponding path program 1 times [2023-01-27 18:15:25,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:15:25,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035571048] [2023-01-27 18:15:25,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:15:25,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:15:25,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:15:26,589 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 18:15:26,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:15:26,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035571048] [2023-01-27 18:15:26,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035571048] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:15:26,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:15:26,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-27 18:15:26,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013560481] [2023-01-27 18:15:26,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:15:26,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-01-27 18:15:26,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:15:26,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-01-27 18:15:26,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-01-27 18:15:26,593 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 166 [2023-01-27 18:15:26,594 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 29 transitions, 174 flow. Second operand has 8 states, 8 states have (on average 68.5) internal successors, (548), 8 states have internal predecessors, (548), 0 states have call successors, (0), 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 18:15:26,594 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:15:26,594 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 166 [2023-01-27 18:15:26,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:15:27,004 INFO L130 PetriNetUnfolder]: 211/387 cut-off events. [2023-01-27 18:15:27,004 INFO L131 PetriNetUnfolder]: For 597/618 co-relation queries the response was YES. [2023-01-27 18:15:27,005 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1390 conditions, 387 events. 211/387 cut-off events. For 597/618 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1446 event pairs, 48 based on Foata normal form. 32/415 useless extension candidates. Maximal degree in co-relation 1369. Up to 318 conditions per place. [2023-01-27 18:15:27,006 INFO L137 encePairwiseOnDemand]: 158/166 looper letters, 36 selfloop transitions, 9 changer transitions 10/58 dead transitions. [2023-01-27 18:15:27,006 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 58 transitions, 403 flow [2023-01-27 18:15:27,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-27 18:15:27,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-01-27 18:15:27,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 582 transitions. [2023-01-27 18:15:27,008 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4382530120481928 [2023-01-27 18:15:27,008 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 582 transitions. [2023-01-27 18:15:27,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 582 transitions. [2023-01-27 18:15:27,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:15:27,009 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 582 transitions. [2023-01-27 18:15:27,010 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 72.75) internal successors, (582), 8 states have internal predecessors, (582), 0 states have call successors, (0), 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 18:15:27,011 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 166.0) internal successors, (1494), 9 states have internal predecessors, (1494), 0 states have call successors, (0), 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 18:15:27,012 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 166.0) internal successors, (1494), 9 states have internal predecessors, (1494), 0 states have call successors, (0), 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 18:15:27,012 INFO L175 Difference]: Start difference. First operand has 41 places, 29 transitions, 174 flow. Second operand 8 states and 582 transitions. [2023-01-27 18:15:27,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 58 transitions, 403 flow [2023-01-27 18:15:27,015 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 58 transitions, 385 flow, removed 5 selfloop flow, removed 3 redundant places. [2023-01-27 18:15:27,016 INFO L231 Difference]: Finished difference. Result has 48 places, 37 transitions, 239 flow [2023-01-27 18:15:27,016 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=239, PETRI_PLACES=48, PETRI_TRANSITIONS=37} [2023-01-27 18:15:27,017 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 20 predicate places. [2023-01-27 18:15:27,017 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 37 transitions, 239 flow [2023-01-27 18:15:27,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 68.5) internal successors, (548), 8 states have internal predecessors, (548), 0 states have call successors, (0), 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 18:15:27,017 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:15:27,017 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:15:27,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-01-27 18:15:27,018 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-27 18:15:27,018 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:15:27,018 INFO L85 PathProgramCache]: Analyzing trace with hash 848568254, now seen corresponding path program 1 times [2023-01-27 18:15:27,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:15:27,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773838439] [2023-01-27 18:15:27,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:15:27,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:15:27,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:15:27,233 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 18:15:27,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:15:27,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773838439] [2023-01-27 18:15:27,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773838439] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:15:27,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:15:27,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-27 18:15:27,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809233559] [2023-01-27 18:15:27,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:15:27,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 18:15:27,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:15:27,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 18:15:27,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-27 18:15:27,235 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 166 [2023-01-27 18:15:27,235 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 37 transitions, 239 flow. Second operand has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 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 18:15:27,235 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:15:27,236 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 166 [2023-01-27 18:15:27,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:15:27,310 INFO L130 PetriNetUnfolder]: 66/153 cut-off events. [2023-01-27 18:15:27,310 INFO L131 PetriNetUnfolder]: For 235/244 co-relation queries the response was YES. [2023-01-27 18:15:27,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 617 conditions, 153 events. 66/153 cut-off events. For 235/244 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 479 event pairs, 9 based on Foata normal form. 30/181 useless extension candidates. Maximal degree in co-relation 591. Up to 94 conditions per place. [2023-01-27 18:15:27,311 INFO L137 encePairwiseOnDemand]: 162/166 looper letters, 42 selfloop transitions, 3 changer transitions 0/48 dead transitions. [2023-01-27 18:15:27,311 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 48 transitions, 388 flow [2023-01-27 18:15:27,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-27 18:15:27,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-27 18:15:27,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 248 transitions. [2023-01-27 18:15:27,312 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4979919678714859 [2023-01-27 18:15:27,313 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 248 transitions. [2023-01-27 18:15:27,313 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 248 transitions. [2023-01-27 18:15:27,313 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:15:27,313 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 248 transitions. [2023-01-27 18:15:27,314 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 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 18:15:27,315 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 0 states have call successors, (0), 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 18:15:27,315 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 166.0) internal successors, (664), 4 states have internal predecessors, (664), 0 states have call successors, (0), 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 18:15:27,315 INFO L175 Difference]: Start difference. First operand has 48 places, 37 transitions, 239 flow. Second operand 3 states and 248 transitions. [2023-01-27 18:15:27,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 48 transitions, 388 flow [2023-01-27 18:15:27,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 48 transitions, 364 flow, removed 12 selfloop flow, removed 4 redundant places. [2023-01-27 18:15:27,319 INFO L231 Difference]: Finished difference. Result has 45 places, 38 transitions, 229 flow [2023-01-27 18:15:27,320 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=229, PETRI_PLACES=45, PETRI_TRANSITIONS=38} [2023-01-27 18:15:27,321 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 17 predicate places. [2023-01-27 18:15:27,321 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 38 transitions, 229 flow [2023-01-27 18:15:27,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 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 18:15:27,321 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:15:27,321 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:15:27,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-01-27 18:15:27,322 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-27 18:15:27,322 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:15:27,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1010908484, now seen corresponding path program 1 times [2023-01-27 18:15:27,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:15:27,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767682635] [2023-01-27 18:15:27,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:15:27,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:15:27,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:15:29,455 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 18:15:29,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:15:29,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767682635] [2023-01-27 18:15:29,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767682635] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:15:29,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:15:29,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-01-27 18:15:29,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945878353] [2023-01-27 18:15:29,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:15:29,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-01-27 18:15:29,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:15:29,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-01-27 18:15:29,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-01-27 18:15:29,457 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 166 [2023-01-27 18:15:29,457 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 38 transitions, 229 flow. Second operand has 9 states, 9 states have (on average 67.55555555555556) internal successors, (608), 9 states have internal predecessors, (608), 0 states have call successors, (0), 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 18:15:29,458 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:15:29,458 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 166 [2023-01-27 18:15:29,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:15:29,830 INFO L130 PetriNetUnfolder]: 66/159 cut-off events. [2023-01-27 18:15:29,830 INFO L131 PetriNetUnfolder]: For 171/178 co-relation queries the response was YES. [2023-01-27 18:15:29,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 651 conditions, 159 events. 66/159 cut-off events. For 171/178 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 493 event pairs, 21 based on Foata normal form. 11/170 useless extension candidates. Maximal degree in co-relation 626. Up to 124 conditions per place. [2023-01-27 18:15:29,831 INFO L137 encePairwiseOnDemand]: 157/166 looper letters, 33 selfloop transitions, 16 changer transitions 4/56 dead transitions. [2023-01-27 18:15:29,831 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 56 transitions, 426 flow [2023-01-27 18:15:29,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-01-27 18:15:29,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-01-27 18:15:29,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 704 transitions. [2023-01-27 18:15:29,833 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42409638554216866 [2023-01-27 18:15:29,833 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 704 transitions. [2023-01-27 18:15:29,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 704 transitions. [2023-01-27 18:15:29,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:15:29,834 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 704 transitions. [2023-01-27 18:15:29,835 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 70.4) internal successors, (704), 10 states have internal predecessors, (704), 0 states have call successors, (0), 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 18:15:29,837 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 166.0) internal successors, (1826), 11 states have internal predecessors, (1826), 0 states have call successors, (0), 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 18:15:29,837 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 166.0) internal successors, (1826), 11 states have internal predecessors, (1826), 0 states have call successors, (0), 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 18:15:29,837 INFO L175 Difference]: Start difference. First operand has 45 places, 38 transitions, 229 flow. Second operand 10 states and 704 transitions. [2023-01-27 18:15:29,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 56 transitions, 426 flow [2023-01-27 18:15:29,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 56 transitions, 422 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-27 18:15:29,840 INFO L231 Difference]: Finished difference. Result has 57 places, 44 transitions, 321 flow [2023-01-27 18:15:29,840 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=321, PETRI_PLACES=57, PETRI_TRANSITIONS=44} [2023-01-27 18:15:29,845 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 29 predicate places. [2023-01-27 18:15:29,845 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 44 transitions, 321 flow [2023-01-27 18:15:29,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 67.55555555555556) internal successors, (608), 9 states have internal predecessors, (608), 0 states have call successors, (0), 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 18:15:29,845 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:15:29,846 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:15:29,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-01-27 18:15:29,846 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-27 18:15:29,846 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:15:29,846 INFO L85 PathProgramCache]: Analyzing trace with hash 36994820, now seen corresponding path program 1 times [2023-01-27 18:15:29,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:15:29,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157886334] [2023-01-27 18:15:29,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:15:29,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:15:29,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:15:31,373 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 18:15:31,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:15:31,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157886334] [2023-01-27 18:15:31,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157886334] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:15:31,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:15:31,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-01-27 18:15:31,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719799066] [2023-01-27 18:15:31,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:15:31,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-01-27 18:15:31,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:15:31,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-01-27 18:15:31,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-01-27 18:15:31,379 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 166 [2023-01-27 18:15:31,380 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 44 transitions, 321 flow. Second operand has 10 states, 10 states have (on average 67.5) internal successors, (675), 10 states have internal predecessors, (675), 0 states have call successors, (0), 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 18:15:31,380 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:15:31,380 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 166 [2023-01-27 18:15:31,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:15:31,828 INFO L130 PetriNetUnfolder]: 98/236 cut-off events. [2023-01-27 18:15:31,828 INFO L131 PetriNetUnfolder]: For 481/494 co-relation queries the response was YES. [2023-01-27 18:15:31,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1072 conditions, 236 events. 98/236 cut-off events. For 481/494 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 931 event pairs, 15 based on Foata normal form. 18/254 useless extension candidates. Maximal degree in co-relation 1042. Up to 118 conditions per place. [2023-01-27 18:15:31,830 INFO L137 encePairwiseOnDemand]: 158/166 looper letters, 49 selfloop transitions, 15 changer transitions 14/81 dead transitions. [2023-01-27 18:15:31,830 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 81 transitions, 721 flow [2023-01-27 18:15:31,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-27 18:15:31,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-01-27 18:15:31,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 577 transitions. [2023-01-27 18:15:31,833 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43448795180722893 [2023-01-27 18:15:31,833 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 577 transitions. [2023-01-27 18:15:31,833 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 577 transitions. [2023-01-27 18:15:31,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:15:31,833 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 577 transitions. [2023-01-27 18:15:31,834 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 72.125) internal successors, (577), 8 states have internal predecessors, (577), 0 states have call successors, (0), 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 18:15:31,836 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 166.0) internal successors, (1494), 9 states have internal predecessors, (1494), 0 states have call successors, (0), 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 18:15:31,836 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 166.0) internal successors, (1494), 9 states have internal predecessors, (1494), 0 states have call successors, (0), 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 18:15:31,836 INFO L175 Difference]: Start difference. First operand has 57 places, 44 transitions, 321 flow. Second operand 8 states and 577 transitions. [2023-01-27 18:15:31,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 81 transitions, 721 flow [2023-01-27 18:15:31,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 81 transitions, 677 flow, removed 13 selfloop flow, removed 7 redundant places. [2023-01-27 18:15:31,840 INFO L231 Difference]: Finished difference. Result has 59 places, 49 transitions, 390 flow [2023-01-27 18:15:31,840 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=285, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=390, PETRI_PLACES=59, PETRI_TRANSITIONS=49} [2023-01-27 18:15:31,841 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 31 predicate places. [2023-01-27 18:15:31,841 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 49 transitions, 390 flow [2023-01-27 18:15:31,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 67.5) internal successors, (675), 10 states have internal predecessors, (675), 0 states have call successors, (0), 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 18:15:31,841 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:15:31,841 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:15:31,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-01-27 18:15:31,842 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-27 18:15:31,843 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:15:31,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1634806898, now seen corresponding path program 2 times [2023-01-27 18:15:31,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:15:31,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906000611] [2023-01-27 18:15:31,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:15:31,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:15:31,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:15:33,940 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 18:15:33,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:15:33,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906000611] [2023-01-27 18:15:33,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906000611] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:15:33,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:15:33,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-01-27 18:15:33,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86425578] [2023-01-27 18:15:33,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:15:33,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-01-27 18:15:33,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:15:33,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-01-27 18:15:33,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-01-27 18:15:33,943 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 166 [2023-01-27 18:15:33,944 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 49 transitions, 390 flow. Second operand has 10 states, 10 states have (on average 65.5) internal successors, (655), 10 states have internal predecessors, (655), 0 states have call successors, (0), 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 18:15:33,944 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:15:33,944 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 166 [2023-01-27 18:15:33,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:15:34,554 INFO L130 PetriNetUnfolder]: 127/311 cut-off events. [2023-01-27 18:15:34,554 INFO L131 PetriNetUnfolder]: For 901/921 co-relation queries the response was YES. [2023-01-27 18:15:34,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1493 conditions, 311 events. 127/311 cut-off events. For 901/921 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1427 event pairs, 31 based on Foata normal form. 24/334 useless extension candidates. Maximal degree in co-relation 1461. Up to 162 conditions per place. [2023-01-27 18:15:34,556 INFO L137 encePairwiseOnDemand]: 156/166 looper letters, 50 selfloop transitions, 24 changer transitions 14/91 dead transitions. [2023-01-27 18:15:34,556 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 91 transitions, 865 flow [2023-01-27 18:15:34,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-01-27 18:15:34,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-01-27 18:15:34,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 633 transitions. [2023-01-27 18:15:34,558 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42369477911646586 [2023-01-27 18:15:34,558 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 633 transitions. [2023-01-27 18:15:34,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 633 transitions. [2023-01-27 18:15:34,559 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:15:34,559 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 633 transitions. [2023-01-27 18:15:34,560 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 70.33333333333333) internal successors, (633), 9 states have internal predecessors, (633), 0 states have call successors, (0), 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 18:15:34,563 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 166.0) internal successors, (1660), 10 states have internal predecessors, (1660), 0 states have call successors, (0), 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 18:15:34,563 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 166.0) internal successors, (1660), 10 states have internal predecessors, (1660), 0 states have call successors, (0), 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 18:15:34,563 INFO L175 Difference]: Start difference. First operand has 59 places, 49 transitions, 390 flow. Second operand 9 states and 633 transitions. [2023-01-27 18:15:34,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 91 transitions, 865 flow [2023-01-27 18:15:34,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 91 transitions, 833 flow, removed 16 selfloop flow, removed 1 redundant places. [2023-01-27 18:15:34,568 INFO L231 Difference]: Finished difference. Result has 69 places, 57 transitions, 530 flow [2023-01-27 18:15:34,569 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=366, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=530, PETRI_PLACES=69, PETRI_TRANSITIONS=57} [2023-01-27 18:15:34,570 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 41 predicate places. [2023-01-27 18:15:34,570 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 57 transitions, 530 flow [2023-01-27 18:15:34,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 65.5) internal successors, (655), 10 states have internal predecessors, (655), 0 states have call successors, (0), 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 18:15:34,571 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:15:34,571 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:15:34,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-01-27 18:15:34,571 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-27 18:15:34,571 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:15:34,571 INFO L85 PathProgramCache]: Analyzing trace with hash 964595912, now seen corresponding path program 3 times [2023-01-27 18:15:34,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:15:34,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017824781] [2023-01-27 18:15:34,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:15:34,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:15:34,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:15:34,807 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 18:15:34,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:15:34,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017824781] [2023-01-27 18:15:34,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017824781] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:15:34,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:15:34,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-27 18:15:34,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37236019] [2023-01-27 18:15:34,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:15:34,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-27 18:15:34,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:15:34,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-27 18:15:34,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-01-27 18:15:34,809 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 166 [2023-01-27 18:15:34,809 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 57 transitions, 530 flow. Second operand has 4 states, 4 states have (on average 76.75) internal successors, (307), 4 states have internal predecessors, (307), 0 states have call successors, (0), 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 18:15:34,809 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:15:34,809 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 166 [2023-01-27 18:15:34,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:15:34,901 INFO L130 PetriNetUnfolder]: 55/157 cut-off events. [2023-01-27 18:15:34,901 INFO L131 PetriNetUnfolder]: For 601/609 co-relation queries the response was YES. [2023-01-27 18:15:34,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 863 conditions, 157 events. 55/157 cut-off events. For 601/609 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 625 event pairs, 6 based on Foata normal form. 32/188 useless extension candidates. Maximal degree in co-relation 834. Up to 82 conditions per place. [2023-01-27 18:15:34,902 INFO L137 encePairwiseOnDemand]: 162/166 looper letters, 50 selfloop transitions, 5 changer transitions 11/69 dead transitions. [2023-01-27 18:15:34,902 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 69 transitions, 784 flow [2023-01-27 18:15:34,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-27 18:15:34,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-01-27 18:15:34,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 321 transitions. [2023-01-27 18:15:34,903 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48343373493975905 [2023-01-27 18:15:34,903 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 321 transitions. [2023-01-27 18:15:34,903 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 321 transitions. [2023-01-27 18:15:34,904 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:15:34,904 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 321 transitions. [2023-01-27 18:15:34,904 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 80.25) internal successors, (321), 4 states have internal predecessors, (321), 0 states have call successors, (0), 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 18:15:34,905 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 166.0) internal successors, (830), 5 states have internal predecessors, (830), 0 states have call successors, (0), 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 18:15:34,905 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 166.0) internal successors, (830), 5 states have internal predecessors, (830), 0 states have call successors, (0), 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 18:15:34,905 INFO L175 Difference]: Start difference. First operand has 69 places, 57 transitions, 530 flow. Second operand 4 states and 321 transitions. [2023-01-27 18:15:34,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 69 transitions, 784 flow [2023-01-27 18:15:34,908 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 69 transitions, 674 flow, removed 35 selfloop flow, removed 7 redundant places. [2023-01-27 18:15:34,909 INFO L231 Difference]: Finished difference. Result has 65 places, 45 transitions, 353 flow [2023-01-27 18:15:34,909 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=421, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=353, PETRI_PLACES=65, PETRI_TRANSITIONS=45} [2023-01-27 18:15:34,910 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 37 predicate places. [2023-01-27 18:15:34,910 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 45 transitions, 353 flow [2023-01-27 18:15:34,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.75) internal successors, (307), 4 states have internal predecessors, (307), 0 states have call successors, (0), 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 18:15:34,911 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:15:34,911 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:15:34,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-01-27 18:15:34,911 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-27 18:15:34,911 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:15:34,911 INFO L85 PathProgramCache]: Analyzing trace with hash 741524624, now seen corresponding path program 1 times [2023-01-27 18:15:34,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:15:34,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440393280] [2023-01-27 18:15:34,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:15:34,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:15:35,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:15:37,036 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 18:15:37,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:15:37,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440393280] [2023-01-27 18:15:37,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440393280] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:15:37,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:15:37,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-01-27 18:15:37,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002545170] [2023-01-27 18:15:37,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:15:37,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-01-27 18:15:37,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:15:37,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-01-27 18:15:37,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-01-27 18:15:37,038 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 166 [2023-01-27 18:15:37,039 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 45 transitions, 353 flow. Second operand has 11 states, 11 states have (on average 62.54545454545455) internal successors, (688), 11 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:15:37,039 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:15:37,039 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 166 [2023-01-27 18:15:37,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:15:37,981 INFO L130 PetriNetUnfolder]: 33/103 cut-off events. [2023-01-27 18:15:37,981 INFO L131 PetriNetUnfolder]: For 293/299 co-relation queries the response was YES. [2023-01-27 18:15:37,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 513 conditions, 103 events. 33/103 cut-off events. For 293/299 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 303 event pairs, 1 based on Foata normal form. 7/110 useless extension candidates. Maximal degree in co-relation 481. Up to 44 conditions per place. [2023-01-27 18:15:37,982 INFO L137 encePairwiseOnDemand]: 158/166 looper letters, 31 selfloop transitions, 9 changer transitions 17/60 dead transitions. [2023-01-27 18:15:37,982 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 60 transitions, 559 flow [2023-01-27 18:15:37,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-01-27 18:15:37,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-01-27 18:15:37,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 589 transitions. [2023-01-27 18:15:37,984 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39424364123159306 [2023-01-27 18:15:37,984 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 589 transitions. [2023-01-27 18:15:37,984 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 589 transitions. [2023-01-27 18:15:37,984 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:15:37,984 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 589 transitions. [2023-01-27 18:15:37,985 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 65.44444444444444) internal successors, (589), 9 states have internal predecessors, (589), 0 states have call successors, (0), 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 18:15:37,987 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 166.0) internal successors, (1660), 10 states have internal predecessors, (1660), 0 states have call successors, (0), 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 18:15:37,987 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 166.0) internal successors, (1660), 10 states have internal predecessors, (1660), 0 states have call successors, (0), 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 18:15:37,987 INFO L175 Difference]: Start difference. First operand has 65 places, 45 transitions, 353 flow. Second operand 9 states and 589 transitions. [2023-01-27 18:15:37,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 60 transitions, 559 flow [2023-01-27 18:15:37,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 60 transitions, 480 flow, removed 24 selfloop flow, removed 8 redundant places. [2023-01-27 18:15:37,990 INFO L231 Difference]: Finished difference. Result has 66 places, 39 transitions, 279 flow [2023-01-27 18:15:37,991 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=279, PETRI_PLACES=66, PETRI_TRANSITIONS=39} [2023-01-27 18:15:37,991 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 38 predicate places. [2023-01-27 18:15:37,991 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 39 transitions, 279 flow [2023-01-27 18:15:37,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 62.54545454545455) internal successors, (688), 11 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:15:37,992 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:15:37,992 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:15:37,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-01-27 18:15:37,992 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-27 18:15:37,992 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:15:37,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1303551252, now seen corresponding path program 2 times [2023-01-27 18:15:37,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:15:37,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78882162] [2023-01-27 18:15:37,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:15:37,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:15:38,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:15:40,529 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 18:15:40,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:15:40,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78882162] [2023-01-27 18:15:40,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78882162] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:15:40,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:15:40,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-01-27 18:15:40,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541435349] [2023-01-27 18:15:40,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:15:40,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-01-27 18:15:40,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:15:40,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-01-27 18:15:40,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-01-27 18:15:40,531 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 166 [2023-01-27 18:15:40,532 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 39 transitions, 279 flow. Second operand has 11 states, 11 states have (on average 64.54545454545455) internal successors, (710), 11 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:15:40,532 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:15:40,532 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 166 [2023-01-27 18:15:40,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:15:40,705 INFO L130 PetriNetUnfolder]: 23/83 cut-off events. [2023-01-27 18:15:40,705 INFO L131 PetriNetUnfolder]: For 177/180 co-relation queries the response was YES. [2023-01-27 18:15:40,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 386 conditions, 83 events. 23/83 cut-off events. For 177/180 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 220 event pairs, 2 based on Foata normal form. 4/87 useless extension candidates. Maximal degree in co-relation 363. Up to 43 conditions per place. [2023-01-27 18:15:40,706 INFO L137 encePairwiseOnDemand]: 159/166 looper letters, 28 selfloop transitions, 2 changer transitions 21/53 dead transitions. [2023-01-27 18:15:40,706 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 53 transitions, 449 flow [2023-01-27 18:15:40,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-27 18:15:40,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-01-27 18:15:40,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 538 transitions. [2023-01-27 18:15:40,725 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40512048192771083 [2023-01-27 18:15:40,725 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 538 transitions. [2023-01-27 18:15:40,725 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 538 transitions. [2023-01-27 18:15:40,725 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:15:40,726 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 538 transitions. [2023-01-27 18:15:40,727 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 67.25) internal successors, (538), 8 states have internal predecessors, (538), 0 states have call successors, (0), 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 18:15:40,728 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 166.0) internal successors, (1494), 9 states have internal predecessors, (1494), 0 states have call successors, (0), 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 18:15:40,734 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 166.0) internal successors, (1494), 9 states have internal predecessors, (1494), 0 states have call successors, (0), 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 18:15:40,734 INFO L175 Difference]: Start difference. First operand has 66 places, 39 transitions, 279 flow. Second operand 8 states and 538 transitions. [2023-01-27 18:15:40,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 53 transitions, 449 flow [2023-01-27 18:15:40,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 53 transitions, 389 flow, removed 6 selfloop flow, removed 15 redundant places. [2023-01-27 18:15:40,740 INFO L231 Difference]: Finished difference. Result has 59 places, 32 transitions, 190 flow [2023-01-27 18:15:40,741 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=223, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=190, PETRI_PLACES=59, PETRI_TRANSITIONS=32} [2023-01-27 18:15:40,741 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 31 predicate places. [2023-01-27 18:15:40,741 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 32 transitions, 190 flow [2023-01-27 18:15:40,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 64.54545454545455) internal successors, (710), 11 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:15:40,742 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:15:40,742 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:15:40,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-01-27 18:15:40,742 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-27 18:15:40,742 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:15:40,742 INFO L85 PathProgramCache]: Analyzing trace with hash -291110304, now seen corresponding path program 3 times [2023-01-27 18:15:40,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:15:40,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731807199] [2023-01-27 18:15:40,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:15:40,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:15:40,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:15:41,657 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 18:15:41,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:15:41,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731807199] [2023-01-27 18:15:41,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731807199] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:15:41,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:15:41,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-27 18:15:41,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964442066] [2023-01-27 18:15:41,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:15:41,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-27 18:15:41,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:15:41,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-27 18:15:41,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-01-27 18:15:41,659 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 166 [2023-01-27 18:15:41,659 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 32 transitions, 190 flow. Second operand has 5 states, 5 states have (on average 65.6) internal successors, (328), 5 states have internal predecessors, (328), 0 states have call successors, (0), 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 18:15:41,659 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:15:41,659 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 166 [2023-01-27 18:15:41,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:15:41,713 INFO L130 PetriNetUnfolder]: 16/52 cut-off events. [2023-01-27 18:15:41,714 INFO L131 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2023-01-27 18:15:41,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 241 conditions, 52 events. 16/52 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 99 event pairs, 4 based on Foata normal form. 1/53 useless extension candidates. Maximal degree in co-relation 224. Up to 33 conditions per place. [2023-01-27 18:15:41,714 INFO L137 encePairwiseOnDemand]: 161/166 looper letters, 0 selfloop transitions, 0 changer transitions 34/34 dead transitions. [2023-01-27 18:15:41,714 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 34 transitions, 276 flow [2023-01-27 18:15:41,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-27 18:15:41,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-27 18:15:41,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 332 transitions. [2023-01-27 18:15:41,715 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4 [2023-01-27 18:15:41,715 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 332 transitions. [2023-01-27 18:15:41,715 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 332 transitions. [2023-01-27 18:15:41,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:15:41,715 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 332 transitions. [2023-01-27 18:15:41,716 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 66.4) internal successors, (332), 5 states have internal predecessors, (332), 0 states have call successors, (0), 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 18:15:41,717 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 166.0) internal successors, (996), 6 states have internal predecessors, (996), 0 states have call successors, (0), 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 18:15:41,717 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 166.0) internal successors, (996), 6 states have internal predecessors, (996), 0 states have call successors, (0), 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 18:15:41,717 INFO L175 Difference]: Start difference. First operand has 59 places, 32 transitions, 190 flow. Second operand 5 states and 332 transitions. [2023-01-27 18:15:41,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 34 transitions, 276 flow [2023-01-27 18:15:41,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 34 transitions, 240 flow, removed 6 selfloop flow, removed 10 redundant places. [2023-01-27 18:15:41,718 INFO L231 Difference]: Finished difference. Result has 44 places, 0 transitions, 0 flow [2023-01-27 18:15:41,718 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=44, PETRI_TRANSITIONS=0} [2023-01-27 18:15:41,718 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 16 predicate places. [2023-01-27 18:15:41,719 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 0 transitions, 0 flow [2023-01-27 18:15:41,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 65.6) internal successors, (328), 5 states have internal predecessors, (328), 0 states have call successors, (0), 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 18:15:41,720 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2023-01-27 18:15:41,721 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2023-01-27 18:15:41,721 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-01-27 18:15:41,721 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2023-01-27 18:15:41,721 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2023-01-27 18:15:41,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-01-27 18:15:41,721 INFO L445 BasicCegarLoop]: Path program histogram: [3, 3, 1, 1, 1, 1, 1, 1] [2023-01-27 18:15:41,726 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-27 18:15:41,726 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-27 18:15:41,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 06:15:41 BasicIcfg [2023-01-27 18:15:41,729 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-27 18:15:41,729 INFO L158 Benchmark]: Toolchain (without parser) took 28157.71ms. Allocated memory was 440.4MB in the beginning and 939.5MB in the end (delta: 499.1MB). Free memory was 399.3MB in the beginning and 498.0MB in the end (delta: -98.7MB). Peak memory consumption was 402.1MB. Max. memory is 16.0GB. [2023-01-27 18:15:41,730 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 310.4MB. Free memory is still 256.8MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-27 18:15:41,730 INFO L158 Benchmark]: CACSL2BoogieTranslator took 760.79ms. Allocated memory is still 440.4MB. Free memory was 399.3MB in the beginning and 374.2MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. [2023-01-27 18:15:41,730 INFO L158 Benchmark]: Boogie Procedure Inliner took 111.98ms. Allocated memory is still 440.4MB. Free memory was 374.2MB in the beginning and 370.8MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-27 18:15:41,730 INFO L158 Benchmark]: Boogie Preprocessor took 32.13ms. Allocated memory is still 440.4MB. Free memory was 370.8MB in the beginning and 368.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-27 18:15:41,730 INFO L158 Benchmark]: RCFGBuilder took 1069.55ms. Allocated memory is still 440.4MB. Free memory was 368.7MB in the beginning and 319.0MB in the end (delta: 49.7MB). Peak memory consumption was 50.3MB. Max. memory is 16.0GB. [2023-01-27 18:15:41,730 INFO L158 Benchmark]: TraceAbstraction took 26168.12ms. Allocated memory was 440.4MB in the beginning and 939.5MB in the end (delta: 499.1MB). Free memory was 318.4MB in the beginning and 498.0MB in the end (delta: -179.7MB). Peak memory consumption was 322.4MB. Max. memory is 16.0GB. [2023-01-27 18:15:41,731 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 310.4MB. Free memory is still 256.8MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 760.79ms. Allocated memory is still 440.4MB. Free memory was 399.3MB in the beginning and 374.2MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 111.98ms. Allocated memory is still 440.4MB. Free memory was 374.2MB in the beginning and 370.8MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 32.13ms. Allocated memory is still 440.4MB. Free memory was 370.8MB in the beginning and 368.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 1069.55ms. Allocated memory is still 440.4MB. Free memory was 368.7MB in the beginning and 319.0MB in the end (delta: 49.7MB). Peak memory consumption was 50.3MB. Max. memory is 16.0GB. * TraceAbstraction took 26168.12ms. Allocated memory was 440.4MB in the beginning and 939.5MB in the end (delta: 499.1MB). Free memory was 318.4MB in the beginning and 498.0MB in the end (delta: -179.7MB). Peak memory consumption was 322.4MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.3s, 93 PlacesBefore, 28 PlacesAfterwards, 88 TransitionsBefore, 22 TransitionsAfterwards, 1156 CoEnabledTransitionPairs, 6 FixpointIterations, 35 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 76 TotalNumberOfCompositions, 3494 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1103, independent: 942, independent conditional: 0, independent unconditional: 942, dependent: 161, dependent conditional: 0, dependent unconditional: 161, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 578, independent: 550, independent conditional: 0, independent unconditional: 550, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1103, independent: 392, independent conditional: 0, independent unconditional: 392, dependent: 133, dependent conditional: 0, dependent unconditional: 133, unknown: 578, unknown conditional: 0, unknown unconditional: 578] , Statistics on independence cache: Total cache size (in pairs): 42, Positive cache size: 28, Positive conditional cache size: 0, Positive unconditional cache size: 28, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 110 locations, 5 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: 25.9s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 4.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 178 SdHoareTripleChecker+Valid, 2.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 178 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 80 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1450 IncrementalHoareTripleChecker+Invalid, 1530 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 80 mSolverCounterUnsat, 5 mSDtfsCounter, 1450 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 84 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=530occurred in iteration=8, InterpolantAutomatonStates: 81, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 15.8s InterpolantComputationTime, 161 NumberOfCodeBlocks, 161 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 149 ConstructedInterpolants, 0 QuantifiedInterpolants, 3275 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-01-27 18:15:41,757 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...