/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/rfi003_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-27 18:15:22,638 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-27 18:15:22,640 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-27 18:15:22,672 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-27 18:15:22,672 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-27 18:15:22,673 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-27 18:15:22,674 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-27 18:15:22,676 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-27 18:15:22,677 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-27 18:15:22,678 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-27 18:15:22,679 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-27 18:15:22,680 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-27 18:15:22,680 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-27 18:15:22,681 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-27 18:15:22,682 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-27 18:15:22,682 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-27 18:15:22,683 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-27 18:15:22,684 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-27 18:15:22,685 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-27 18:15:22,687 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-27 18:15:22,688 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-27 18:15:22,692 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-27 18:15:22,693 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-27 18:15:22,694 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-27 18:15:22,696 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-01-27 18:15:22,699 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-27 18:15:22,699 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-27 18:15:22,700 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-27 18:15:22,701 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-27 18:15:22,701 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-27 18:15:22,702 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-27 18:15:22,702 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-27 18:15:22,703 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-27 18:15:22,703 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-27 18:15:22,703 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-27 18:15:22,704 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-27 18:15:22,706 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 18:15:22,722 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-27 18:15:22,722 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-27 18:15:22,723 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-27 18:15:22,723 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-27 18:15:22,724 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-27 18:15:22,724 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-27 18:15:22,724 INFO L138 SettingsManager]: * Use SBE=true [2023-01-27 18:15:22,725 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-27 18:15:22,725 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-27 18:15:22,725 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-27 18:15:22,725 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-27 18:15:22,725 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-27 18:15:22,725 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-27 18:15:22,726 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-27 18:15:22,726 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-27 18:15:22,726 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-27 18:15:22,726 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-27 18:15:22,726 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-27 18:15:22,726 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-27 18:15:22,727 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-27 18:15:22,727 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-27 18:15:22,727 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-27 18:15:22,727 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-27 18:15:22,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 18:15:22,728 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-27 18:15:22,728 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-27 18:15:22,728 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-27 18:15:22,728 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-27 18:15:22,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-27 18:15:22,728 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-27 18:15:22,729 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-27 18:15:22,729 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-01-27 18:15:22,940 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-27 18:15:22,965 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-27 18:15:22,967 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-27 18:15:22,968 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-27 18:15:22,969 INFO L275 PluginConnector]: CDTParser initialized [2023-01-27 18:15:22,970 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi003_tso.i [2023-01-27 18:15:23,966 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-27 18:15:24,161 INFO L351 CDTParser]: Found 1 translation units. [2023-01-27 18:15:24,162 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi003_tso.i [2023-01-27 18:15:24,172 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f1d5043b/0830c6487a4644788522acbb7ffc3ef2/FLAGda8a30e6d [2023-01-27 18:15:24,183 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f1d5043b/0830c6487a4644788522acbb7ffc3ef2 [2023-01-27 18:15:24,185 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-27 18:15:24,186 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-27 18:15:24,187 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-27 18:15:24,187 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-27 18:15:24,191 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-27 18:15:24,192 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 06:15:24" (1/1) ... [2023-01-27 18:15:24,193 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e86fb8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:15:24, skipping insertion in model container [2023-01-27 18:15:24,193 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 06:15:24" (1/1) ... [2023-01-27 18:15:24,197 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-27 18:15:24,234 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-27 18:15:24,340 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/rfi003_tso.i[944,957] [2023-01-27 18:15:24,516 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 18:15:24,523 INFO L203 MainTranslator]: Completed pre-run [2023-01-27 18:15:24,531 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/rfi003_tso.i[944,957] [2023-01-27 18:15:24,576 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 18:15:24,609 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:15:24,609 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:15:24,614 INFO L208 MainTranslator]: Completed translation [2023-01-27 18:15:24,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:15:24 WrapperNode [2023-01-27 18:15:24,614 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-27 18:15:24,615 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-27 18:15:24,616 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-27 18:15:24,616 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-27 18:15:24,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:15:24" (1/1) ... [2023-01-27 18:15:24,646 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:15:24" (1/1) ... [2023-01-27 18:15:24,666 INFO L138 Inliner]: procedures = 175, calls = 47, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 171 [2023-01-27 18:15:24,667 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-27 18:15:24,667 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-27 18:15:24,668 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-27 18:15:24,668 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-27 18:15:24,675 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:15:24" (1/1) ... [2023-01-27 18:15:24,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:15:24" (1/1) ... [2023-01-27 18:15:24,677 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:15:24" (1/1) ... [2023-01-27 18:15:24,678 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:15:24" (1/1) ... [2023-01-27 18:15:24,684 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:15:24" (1/1) ... [2023-01-27 18:15:24,685 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:15:24" (1/1) ... [2023-01-27 18:15:24,687 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:15:24" (1/1) ... [2023-01-27 18:15:24,688 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:15:24" (1/1) ... [2023-01-27 18:15:24,701 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-27 18:15:24,702 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-27 18:15:24,702 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-27 18:15:24,702 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-27 18:15:24,703 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:15:24" (1/1) ... [2023-01-27 18:15:24,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 18:15:24,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:15:24,738 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 18:15:24,744 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 18:15:24,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-27 18:15:24,769 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-01-27 18:15:24,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-27 18:15:24,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-27 18:15:24,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-27 18:15:24,770 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-01-27 18:15:24,770 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-01-27 18:15:24,771 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-01-27 18:15:24,771 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-01-27 18:15:24,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-27 18:15:24,771 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-01-27 18:15:24,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-27 18:15:24,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-27 18:15:24,773 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 18:15:24,916 INFO L236 CfgBuilder]: Building ICFG [2023-01-27 18:15:24,918 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-27 18:15:25,198 INFO L277 CfgBuilder]: Performing block encoding [2023-01-27 18:15:25,356 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-27 18:15:25,356 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-27 18:15:25,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 06:15:25 BoogieIcfgContainer [2023-01-27 18:15:25,358 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-27 18:15:25,359 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-27 18:15:25,359 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-27 18:15:25,361 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-27 18:15:25,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 06:15:24" (1/3) ... [2023-01-27 18:15:25,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c6f639e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 06:15:25, skipping insertion in model container [2023-01-27 18:15:25,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:15:24" (2/3) ... [2023-01-27 18:15:25,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c6f639e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 06:15:25, skipping insertion in model container [2023-01-27 18:15:25,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 06:15:25" (3/3) ... [2023-01-27 18:15:25,364 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi003_tso.i [2023-01-27 18:15:25,376 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-27 18:15:25,376 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-01-27 18:15:25,376 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-27 18:15:25,416 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-27 18:15:25,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 92 transitions, 194 flow [2023-01-27 18:15:25,486 INFO L130 PetriNetUnfolder]: 2/90 cut-off events. [2023-01-27 18:15:25,486 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 18:15:25,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 90 events. 2/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2023-01-27 18:15:25,491 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 92 transitions, 194 flow [2023-01-27 18:15:25,494 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 95 places, 90 transitions, 186 flow [2023-01-27 18:15:25,496 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 18:15:25,502 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 90 transitions, 186 flow [2023-01-27 18:15:25,504 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 90 transitions, 186 flow [2023-01-27 18:15:25,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 90 transitions, 186 flow [2023-01-27 18:15:25,525 INFO L130 PetriNetUnfolder]: 2/90 cut-off events. [2023-01-27 18:15:25,525 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 18:15:25,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 90 events. 2/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2023-01-27 18:15:25,526 INFO L119 LiptonReduction]: Number of co-enabled transitions 1244 [2023-01-27 18:15:28,052 INFO L134 LiptonReduction]: Checked pairs total: 4348 [2023-01-27 18:15:28,053 INFO L136 LiptonReduction]: Total number of compositions: 77 [2023-01-27 18:15:28,063 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-27 18:15:28,068 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;@211c7a6e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 18:15:28,068 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-01-27 18:15:28,072 INFO L130 PetriNetUnfolder]: 1/12 cut-off events. [2023-01-27 18:15:28,072 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 18:15:28,072 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:15:28,072 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-01-27 18:15:28,073 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 18:15:28,076 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:15:28,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1568998742, now seen corresponding path program 1 times [2023-01-27 18:15:28,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:15:28,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688851377] [2023-01-27 18:15:28,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:15:28,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:15:28,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:15:28,436 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 18:15:28,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:15:28,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688851377] [2023-01-27 18:15:28,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688851377] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:15:28,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:15:28,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-01-27 18:15:28,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899221797] [2023-01-27 18:15:28,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:15:28,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 18:15:28,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:15:28,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 18:15:28,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-27 18:15:28,468 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 169 [2023-01-27 18:15:28,469 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 23 transitions, 52 flow. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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 18:15:28,469 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:15:28,469 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 169 [2023-01-27 18:15:28,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:15:28,627 INFO L130 PetriNetUnfolder]: 380/639 cut-off events. [2023-01-27 18:15:28,628 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-01-27 18:15:28,629 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1291 conditions, 639 events. 380/639 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2634 event pairs, 90 based on Foata normal form. 35/601 useless extension candidates. Maximal degree in co-relation 1281. Up to 466 conditions per place. [2023-01-27 18:15:28,632 INFO L137 encePairwiseOnDemand]: 165/169 looper letters, 24 selfloop transitions, 2 changer transitions 4/31 dead transitions. [2023-01-27 18:15:28,632 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 31 transitions, 128 flow [2023-01-27 18:15:28,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-27 18:15:28,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-27 18:15:28,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 264 transitions. [2023-01-27 18:15:28,641 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5207100591715976 [2023-01-27 18:15:28,642 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 264 transitions. [2023-01-27 18:15:28,642 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 264 transitions. [2023-01-27 18:15:28,643 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:15:28,644 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 264 transitions. [2023-01-27 18:15:28,646 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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 18:15:28,649 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 169.0) internal successors, (676), 4 states have internal predecessors, (676), 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 18:15:28,649 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 169.0) internal successors, (676), 4 states have internal predecessors, (676), 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 18:15:28,650 INFO L175 Difference]: Start difference. First operand has 29 places, 23 transitions, 52 flow. Second operand 3 states and 264 transitions. [2023-01-27 18:15:28,651 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 31 transitions, 128 flow [2023-01-27 18:15:28,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 31 transitions, 126 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-27 18:15:28,653 INFO L231 Difference]: Finished difference. Result has 28 places, 19 transitions, 46 flow [2023-01-27 18:15:28,654 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=46, PETRI_PLACES=28, PETRI_TRANSITIONS=19} [2023-01-27 18:15:28,656 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, -1 predicate places. [2023-01-27 18:15:28,657 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 19 transitions, 46 flow [2023-01-27 18:15:28,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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 18:15:28,657 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:15:28,657 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:15:28,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-27 18:15:28,657 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 18:15:28,658 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:15:28,658 INFO L85 PathProgramCache]: Analyzing trace with hash 275037612, now seen corresponding path program 1 times [2023-01-27 18:15:28,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:15:28,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690194992] [2023-01-27 18:15:28,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:15:28,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:15:28,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:15:29,239 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 18:15:29,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:15:29,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690194992] [2023-01-27 18:15:29,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690194992] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:15:29,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:15:29,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-27 18:15:29,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334696455] [2023-01-27 18:15:29,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:15:29,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-27 18:15:29,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:15:29,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-27 18:15:29,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-01-27 18:15:29,249 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 169 [2023-01-27 18:15:29,250 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 19 transitions, 46 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 18:15:29,250 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:15:29,250 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 169 [2023-01-27 18:15:29,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:15:29,411 INFO L130 PetriNetUnfolder]: 305/534 cut-off events. [2023-01-27 18:15:29,411 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2023-01-27 18:15:29,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1110 conditions, 534 events. 305/534 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2015 event pairs, 110 based on Foata normal form. 42/576 useless extension candidates. Maximal degree in co-relation 1100. Up to 305 conditions per place. [2023-01-27 18:15:29,416 INFO L137 encePairwiseOnDemand]: 165/169 looper letters, 24 selfloop transitions, 2 changer transitions 17/43 dead transitions. [2023-01-27 18:15:29,416 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 43 transitions, 182 flow [2023-01-27 18:15:29,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-27 18:15:29,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-27 18:15:29,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 355 transitions. [2023-01-27 18:15:29,420 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42011834319526625 [2023-01-27 18:15:29,420 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 355 transitions. [2023-01-27 18:15:29,421 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 355 transitions. [2023-01-27 18:15:29,421 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:15:29,421 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 355 transitions. [2023-01-27 18:15:29,422 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 71.0) internal successors, (355), 5 states have internal predecessors, (355), 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 18:15:29,425 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 169.0) internal successors, (1014), 6 states have internal predecessors, (1014), 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 18:15:29,425 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 169.0) internal successors, (1014), 6 states have internal predecessors, (1014), 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 18:15:29,425 INFO L175 Difference]: Start difference. First operand has 28 places, 19 transitions, 46 flow. Second operand 5 states and 355 transitions. [2023-01-27 18:15:29,425 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 43 transitions, 182 flow [2023-01-27 18:15:29,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 43 transitions, 176 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-27 18:15:29,427 INFO L231 Difference]: Finished difference. Result has 31 places, 19 transitions, 54 flow [2023-01-27 18:15:29,427 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=54, PETRI_PLACES=31, PETRI_TRANSITIONS=19} [2023-01-27 18:15:29,427 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 2 predicate places. [2023-01-27 18:15:29,428 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 19 transitions, 54 flow [2023-01-27 18:15:29,428 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 18:15:29,428 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:15:29,428 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:15:29,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-27 18:15:29,428 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 18:15:29,430 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:15:29,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1915642280, now seen corresponding path program 1 times [2023-01-27 18:15:29,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:15:29,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217368088] [2023-01-27 18:15:29,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:15:29,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:15:29,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:15:30,012 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 18:15:30,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:15:30,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217368088] [2023-01-27 18:15:30,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217368088] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:15:30,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:15:30,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-27 18:15:30,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537661159] [2023-01-27 18:15:30,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:15:30,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-27 18:15:30,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:15:30,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-27 18:15:30,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-01-27 18:15:30,024 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 169 [2023-01-27 18:15:30,024 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 19 transitions, 54 flow. Second operand has 5 states, 5 states have (on average 64.2) internal successors, (321), 5 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 18:15:30,024 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:15:30,024 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 169 [2023-01-27 18:15:30,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:15:30,170 INFO L130 PetriNetUnfolder]: 256/455 cut-off events. [2023-01-27 18:15:30,170 INFO L131 PetriNetUnfolder]: For 103/103 co-relation queries the response was YES. [2023-01-27 18:15:30,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1027 conditions, 455 events. 256/455 cut-off events. For 103/103 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1630 event pairs, 125 based on Foata normal form. 24/479 useless extension candidates. Maximal degree in co-relation 1014. Up to 226 conditions per place. [2023-01-27 18:15:30,173 INFO L137 encePairwiseOnDemand]: 165/169 looper letters, 24 selfloop transitions, 2 changer transitions 14/40 dead transitions. [2023-01-27 18:15:30,173 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 40 transitions, 178 flow [2023-01-27 18:15:30,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-27 18:15:30,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-27 18:15:30,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 352 transitions. [2023-01-27 18:15:30,176 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4165680473372781 [2023-01-27 18:15:30,176 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 352 transitions. [2023-01-27 18:15:30,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 352 transitions. [2023-01-27 18:15:30,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:15:30,176 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 352 transitions. [2023-01-27 18:15:30,177 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 70.4) internal successors, (352), 5 states have internal predecessors, (352), 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 18:15:30,178 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 169.0) internal successors, (1014), 6 states have internal predecessors, (1014), 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 18:15:30,178 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 169.0) internal successors, (1014), 6 states have internal predecessors, (1014), 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 18:15:30,178 INFO L175 Difference]: Start difference. First operand has 31 places, 19 transitions, 54 flow. Second operand 5 states and 352 transitions. [2023-01-27 18:15:30,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 40 transitions, 178 flow [2023-01-27 18:15:30,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 40 transitions, 170 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-01-27 18:15:30,181 INFO L231 Difference]: Finished difference. Result has 32 places, 19 transitions, 58 flow [2023-01-27 18:15:30,181 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=58, PETRI_PLACES=32, PETRI_TRANSITIONS=19} [2023-01-27 18:15:30,182 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 3 predicate places. [2023-01-27 18:15:30,184 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 19 transitions, 58 flow [2023-01-27 18:15:30,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 64.2) internal successors, (321), 5 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 18:15:30,184 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:15:30,184 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:15:30,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-27 18:15:30,185 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 18:15:30,185 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:15:30,185 INFO L85 PathProgramCache]: Analyzing trace with hash -744690788, now seen corresponding path program 1 times [2023-01-27 18:15:30,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:15:30,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688830607] [2023-01-27 18:15:30,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:15:30,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:15:30,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:15:30,971 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 18:15:30,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:15:30,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688830607] [2023-01-27 18:15:30,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688830607] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:15:30,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:15:30,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-27 18:15:30,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622122282] [2023-01-27 18:15:30,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:15:30,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-01-27 18:15:30,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:15:30,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-01-27 18:15:30,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-01-27 18:15:30,975 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 169 [2023-01-27 18:15:30,975 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 19 transitions, 58 flow. Second operand has 8 states, 8 states have (on average 69.5) internal successors, (556), 8 states have internal predecessors, (556), 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 18:15:30,975 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:15:30,975 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 169 [2023-01-27 18:15:30,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:15:31,148 INFO L130 PetriNetUnfolder]: 196/369 cut-off events. [2023-01-27 18:15:31,148 INFO L131 PetriNetUnfolder]: For 92/92 co-relation queries the response was YES. [2023-01-27 18:15:31,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 847 conditions, 369 events. 196/369 cut-off events. For 92/92 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1399 event pairs, 80 based on Foata normal form. 15/384 useless extension candidates. Maximal degree in co-relation 833. Up to 307 conditions per place. [2023-01-27 18:15:31,150 INFO L137 encePairwiseOnDemand]: 162/169 looper letters, 27 selfloop transitions, 7 changer transitions 9/44 dead transitions. [2023-01-27 18:15:31,150 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 44 transitions, 204 flow [2023-01-27 18:15:31,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-27 18:15:31,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-01-27 18:15:31,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 521 transitions. [2023-01-27 18:15:31,152 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44040574809805577 [2023-01-27 18:15:31,152 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 521 transitions. [2023-01-27 18:15:31,152 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 521 transitions. [2023-01-27 18:15:31,152 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:15:31,152 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 521 transitions. [2023-01-27 18:15:31,155 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 74.42857142857143) internal successors, (521), 7 states have internal predecessors, (521), 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 18:15:31,158 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 169.0) internal successors, (1352), 8 states have internal predecessors, (1352), 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 18:15:31,158 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 169.0) internal successors, (1352), 8 states have internal predecessors, (1352), 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 18:15:31,158 INFO L175 Difference]: Start difference. First operand has 32 places, 19 transitions, 58 flow. Second operand 7 states and 521 transitions. [2023-01-27 18:15:31,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 44 transitions, 204 flow [2023-01-27 18:15:31,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 44 transitions, 187 flow, removed 4 selfloop flow, removed 5 redundant places. [2023-01-27 18:15:31,161 INFO L231 Difference]: Finished difference. Result has 36 places, 25 transitions, 98 flow [2023-01-27 18:15:31,161 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=98, PETRI_PLACES=36, PETRI_TRANSITIONS=25} [2023-01-27 18:15:31,162 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 7 predicate places. [2023-01-27 18:15:31,162 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 25 transitions, 98 flow [2023-01-27 18:15:31,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 69.5) internal successors, (556), 8 states have internal predecessors, (556), 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 18:15:31,163 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:15:31,163 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:15:31,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-01-27 18:15:31,163 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 18:15:31,163 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:15:31,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1570032139, now seen corresponding path program 1 times [2023-01-27 18:15:31,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:15:31,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369990340] [2023-01-27 18:15:31,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:15:31,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:15:31,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:15:31,467 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 18:15:31,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:15:31,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369990340] [2023-01-27 18:15:31,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369990340] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:15:31,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:15:31,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-27 18:15:31,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767686300] [2023-01-27 18:15:31,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:15:31,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-27 18:15:31,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:15:31,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-27 18:15:31,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-01-27 18:15:31,469 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 169 [2023-01-27 18:15:31,469 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 25 transitions, 98 flow. Second operand has 4 states, 4 states have (on average 75.25) internal successors, (301), 4 states have internal predecessors, (301), 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 18:15:31,469 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:15:31,469 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 169 [2023-01-27 18:15:31,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:15:31,553 INFO L130 PetriNetUnfolder]: 111/231 cut-off events. [2023-01-27 18:15:31,553 INFO L131 PetriNetUnfolder]: For 57/57 co-relation queries the response was YES. [2023-01-27 18:15:31,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 609 conditions, 231 events. 111/231 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 822 event pairs, 53 based on Foata normal form. 35/264 useless extension candidates. Maximal degree in co-relation 593. Up to 116 conditions per place. [2023-01-27 18:15:31,554 INFO L137 encePairwiseOnDemand]: 164/169 looper letters, 42 selfloop transitions, 4 changer transitions 1/48 dead transitions. [2023-01-27 18:15:31,554 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 48 transitions, 262 flow [2023-01-27 18:15:31,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-27 18:15:31,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-01-27 18:15:31,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 331 transitions. [2023-01-27 18:15:31,556 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4896449704142012 [2023-01-27 18:15:31,556 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 331 transitions. [2023-01-27 18:15:31,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 331 transitions. [2023-01-27 18:15:31,556 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:15:31,556 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 331 transitions. [2023-01-27 18:15:31,557 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 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 18:15:31,558 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 169.0) internal successors, (845), 5 states have internal predecessors, (845), 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 18:15:31,558 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 169.0) internal successors, (845), 5 states have internal predecessors, (845), 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 18:15:31,558 INFO L175 Difference]: Start difference. First operand has 36 places, 25 transitions, 98 flow. Second operand 4 states and 331 transitions. [2023-01-27 18:15:31,558 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 48 transitions, 262 flow [2023-01-27 18:15:31,560 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 48 transitions, 260 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-01-27 18:15:31,561 INFO L231 Difference]: Finished difference. Result has 38 places, 27 transitions, 122 flow [2023-01-27 18:15:31,561 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=122, PETRI_PLACES=38, PETRI_TRANSITIONS=27} [2023-01-27 18:15:31,562 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 9 predicate places. [2023-01-27 18:15:31,562 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 27 transitions, 122 flow [2023-01-27 18:15:31,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.25) internal successors, (301), 4 states have internal predecessors, (301), 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 18:15:31,563 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:15:31,563 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:15:31,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-01-27 18:15:31,563 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 18:15:31,563 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:15:31,563 INFO L85 PathProgramCache]: Analyzing trace with hash 995260082, now seen corresponding path program 1 times [2023-01-27 18:15:31,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:15:31,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282986980] [2023-01-27 18:15:31,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:15:31,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:15:31,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:15:32,386 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 18:15:32,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:15:32,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282986980] [2023-01-27 18:15:32,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282986980] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:15:32,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:15:32,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-27 18:15:32,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419799274] [2023-01-27 18:15:32,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:15:32,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-01-27 18:15:32,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:15:32,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-01-27 18:15:32,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-01-27 18:15:32,388 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 169 [2023-01-27 18:15:32,389 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 27 transitions, 122 flow. Second operand has 8 states, 8 states have (on average 67.75) internal successors, (542), 8 states have internal predecessors, (542), 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 18:15:32,389 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:15:32,389 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 169 [2023-01-27 18:15:32,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:15:32,506 INFO L130 PetriNetUnfolder]: 62/152 cut-off events. [2023-01-27 18:15:32,506 INFO L131 PetriNetUnfolder]: For 73/73 co-relation queries the response was YES. [2023-01-27 18:15:32,507 INFO L83 FinitePrefix]: Finished finitePrefix Result has 483 conditions, 152 events. 62/152 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 471 event pairs, 36 based on Foata normal form. 5/157 useless extension candidates. Maximal degree in co-relation 464. Up to 131 conditions per place. [2023-01-27 18:15:32,507 INFO L137 encePairwiseOnDemand]: 163/169 looper letters, 26 selfloop transitions, 8 changer transitions 5/40 dead transitions. [2023-01-27 18:15:32,507 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 40 transitions, 250 flow [2023-01-27 18:15:32,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-27 18:15:32,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-01-27 18:15:32,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 499 transitions. [2023-01-27 18:15:32,509 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42180896027049875 [2023-01-27 18:15:32,509 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 499 transitions. [2023-01-27 18:15:32,509 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 499 transitions. [2023-01-27 18:15:32,509 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:15:32,509 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 499 transitions. [2023-01-27 18:15:32,510 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 71.28571428571429) internal successors, (499), 7 states have internal predecessors, (499), 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 18:15:32,511 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 169.0) internal successors, (1352), 8 states have internal predecessors, (1352), 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 18:15:32,512 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 169.0) internal successors, (1352), 8 states have internal predecessors, (1352), 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 18:15:32,512 INFO L175 Difference]: Start difference. First operand has 38 places, 27 transitions, 122 flow. Second operand 7 states and 499 transitions. [2023-01-27 18:15:32,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 40 transitions, 250 flow [2023-01-27 18:15:32,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 40 transitions, 238 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-01-27 18:15:32,513 INFO L231 Difference]: Finished difference. Result has 46 places, 29 transitions, 153 flow [2023-01-27 18:15:32,513 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=115, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=153, PETRI_PLACES=46, PETRI_TRANSITIONS=29} [2023-01-27 18:15:32,514 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 17 predicate places. [2023-01-27 18:15:32,514 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 29 transitions, 153 flow [2023-01-27 18:15:32,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 67.75) internal successors, (542), 8 states have internal predecessors, (542), 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 18:15:32,514 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:15:32,514 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:15:32,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-01-27 18:15:32,514 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 18:15:32,515 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:15:32,515 INFO L85 PathProgramCache]: Analyzing trace with hash -2104896819, now seen corresponding path program 1 times [2023-01-27 18:15:32,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:15:32,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815993338] [2023-01-27 18:15:32,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:15:32,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:15:32,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:15:33,554 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 18:15:33,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:15:33,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815993338] [2023-01-27 18:15:33,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815993338] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:15:33,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:15:33,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-01-27 18:15:33,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866503600] [2023-01-27 18:15:33,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:15:33,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-01-27 18:15:33,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:15:33,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-01-27 18:15:33,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-01-27 18:15:33,556 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 169 [2023-01-27 18:15:33,557 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 29 transitions, 153 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 18:15:33,557 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:15:33,557 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 169 [2023-01-27 18:15:33,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:15:33,771 INFO L130 PetriNetUnfolder]: 79/189 cut-off events. [2023-01-27 18:15:33,771 INFO L131 PetriNetUnfolder]: For 143/143 co-relation queries the response was YES. [2023-01-27 18:15:33,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 614 conditions, 189 events. 79/189 cut-off events. For 143/143 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 688 event pairs, 26 based on Foata normal form. 5/193 useless extension candidates. Maximal degree in co-relation 591. Up to 106 conditions per place. [2023-01-27 18:15:33,772 INFO L137 encePairwiseOnDemand]: 160/169 looper letters, 31 selfloop transitions, 11 changer transitions 14/57 dead transitions. [2023-01-27 18:15:33,772 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 57 transitions, 363 flow [2023-01-27 18:15:33,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-01-27 18:15:33,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-01-27 18:15:33,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 640 transitions. [2023-01-27 18:15:33,774 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42077580539119 [2023-01-27 18:15:33,774 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 640 transitions. [2023-01-27 18:15:33,774 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 640 transitions. [2023-01-27 18:15:33,775 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:15:33,775 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 640 transitions. [2023-01-27 18:15:33,776 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 71.11111111111111) internal successors, (640), 9 states have internal predecessors, (640), 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 18:15:33,777 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 169.0) internal successors, (1690), 10 states have internal predecessors, (1690), 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 18:15:33,778 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 169.0) internal successors, (1690), 10 states have internal predecessors, (1690), 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 18:15:33,778 INFO L175 Difference]: Start difference. First operand has 46 places, 29 transitions, 153 flow. Second operand 9 states and 640 transitions. [2023-01-27 18:15:33,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 57 transitions, 363 flow [2023-01-27 18:15:33,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 57 transitions, 349 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-01-27 18:15:33,779 INFO L231 Difference]: Finished difference. Result has 53 places, 36 transitions, 202 flow [2023-01-27 18:15:33,780 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=139, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=202, PETRI_PLACES=53, PETRI_TRANSITIONS=36} [2023-01-27 18:15:33,780 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 24 predicate places. [2023-01-27 18:15:33,780 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 36 transitions, 202 flow [2023-01-27 18:15:33,781 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 18:15:33,781 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:15:33,781 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:15:33,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-01-27 18:15:33,781 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 18:15:33,781 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:15:33,781 INFO L85 PathProgramCache]: Analyzing trace with hash 783084069, now seen corresponding path program 2 times [2023-01-27 18:15:33,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:15:33,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842310326] [2023-01-27 18:15:33,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:15:33,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:15:33,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:15:34,000 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 18:15:34,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:15:34,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842310326] [2023-01-27 18:15:34,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842310326] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:15:34,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:15:34,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-27 18:15:34,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361023920] [2023-01-27 18:15:34,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:15:34,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-27 18:15:34,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:15:34,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-27 18:15:34,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-01-27 18:15:34,002 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 169 [2023-01-27 18:15:34,002 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 36 transitions, 202 flow. Second operand has 5 states, 5 states have (on average 75.0) internal successors, (375), 5 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:15:34,002 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:15:34,002 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 169 [2023-01-27 18:15:34,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:15:34,085 INFO L130 PetriNetUnfolder]: 43/110 cut-off events. [2023-01-27 18:15:34,085 INFO L131 PetriNetUnfolder]: For 92/92 co-relation queries the response was YES. [2023-01-27 18:15:34,085 INFO L83 FinitePrefix]: Finished finitePrefix Result has 398 conditions, 110 events. 43/110 cut-off events. For 92/92 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 322 event pairs, 13 based on Foata normal form. 11/120 useless extension candidates. Maximal degree in co-relation 377. Up to 59 conditions per place. [2023-01-27 18:15:34,086 INFO L137 encePairwiseOnDemand]: 164/169 looper letters, 39 selfloop transitions, 6 changer transitions 1/47 dead transitions. [2023-01-27 18:15:34,086 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 47 transitions, 344 flow [2023-01-27 18:15:34,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-27 18:15:34,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-27 18:15:34,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 393 transitions. [2023-01-27 18:15:34,087 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4650887573964497 [2023-01-27 18:15:34,087 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 393 transitions. [2023-01-27 18:15:34,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 393 transitions. [2023-01-27 18:15:34,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:15:34,088 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 393 transitions. [2023-01-27 18:15:34,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 78.6) internal successors, (393), 5 states have internal predecessors, (393), 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 18:15:34,090 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 169.0) internal successors, (1014), 6 states have internal predecessors, (1014), 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 18:15:34,090 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 169.0) internal successors, (1014), 6 states have internal predecessors, (1014), 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 18:15:34,090 INFO L175 Difference]: Start difference. First operand has 53 places, 36 transitions, 202 flow. Second operand 5 states and 393 transitions. [2023-01-27 18:15:34,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 47 transitions, 344 flow [2023-01-27 18:15:34,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 47 transitions, 312 flow, removed 11 selfloop flow, removed 5 redundant places. [2023-01-27 18:15:34,091 INFO L231 Difference]: Finished difference. Result has 52 places, 36 transitions, 197 flow [2023-01-27 18:15:34,092 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=197, PETRI_PLACES=52, PETRI_TRANSITIONS=36} [2023-01-27 18:15:34,092 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 23 predicate places. [2023-01-27 18:15:34,092 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 36 transitions, 197 flow [2023-01-27 18:15:34,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 75.0) internal successors, (375), 5 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:15:34,092 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:15:34,093 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:15:34,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-01-27 18:15:34,093 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 18:15:34,093 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:15:34,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1536431698, now seen corresponding path program 1 times [2023-01-27 18:15:34,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:15:34,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201680780] [2023-01-27 18:15:34,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:15:34,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:15:34,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:15:35,911 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 18:15:35,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:15:35,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201680780] [2023-01-27 18:15:35,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201680780] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:15:35,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:15:35,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-01-27 18:15:35,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147821604] [2023-01-27 18:15:35,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:15:35,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-01-27 18:15:35,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:15:35,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-01-27 18:15:35,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-01-27 18:15:35,916 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 169 [2023-01-27 18:15:35,916 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 36 transitions, 197 flow. Second operand has 11 states, 11 states have (on average 65.63636363636364) internal successors, (722), 11 states have internal predecessors, (722), 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 18:15:35,916 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:15:35,916 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 169 [2023-01-27 18:15:35,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:15:36,126 INFO L130 PetriNetUnfolder]: 43/123 cut-off events. [2023-01-27 18:15:36,126 INFO L131 PetriNetUnfolder]: For 152/152 co-relation queries the response was YES. [2023-01-27 18:15:36,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 458 conditions, 123 events. 43/123 cut-off events. For 152/152 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 392 event pairs, 3 based on Foata normal form. 1/124 useless extension candidates. Maximal degree in co-relation 433. Up to 55 conditions per place. [2023-01-27 18:15:36,140 INFO L137 encePairwiseOnDemand]: 159/169 looper letters, 28 selfloop transitions, 20 changer transitions 10/59 dead transitions. [2023-01-27 18:15:36,141 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 59 transitions, 435 flow [2023-01-27 18:15:36,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-01-27 18:15:36,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-01-27 18:15:36,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 624 transitions. [2023-01-27 18:15:36,144 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41025641025641024 [2023-01-27 18:15:36,144 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 624 transitions. [2023-01-27 18:15:36,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 624 transitions. [2023-01-27 18:15:36,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:15:36,145 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 624 transitions. [2023-01-27 18:15:36,146 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 69.33333333333333) internal successors, (624), 9 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 18:15:36,148 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 169.0) internal successors, (1690), 10 states have internal predecessors, (1690), 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 18:15:36,148 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 169.0) internal successors, (1690), 10 states have internal predecessors, (1690), 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 18:15:36,149 INFO L175 Difference]: Start difference. First operand has 52 places, 36 transitions, 197 flow. Second operand 9 states and 624 transitions. [2023-01-27 18:15:36,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 59 transitions, 435 flow [2023-01-27 18:15:36,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 59 transitions, 362 flow, removed 10 selfloop flow, removed 7 redundant places. [2023-01-27 18:15:36,151 INFO L231 Difference]: Finished difference. Result has 57 places, 44 transitions, 270 flow [2023-01-27 18:15:36,151 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=270, PETRI_PLACES=57, PETRI_TRANSITIONS=44} [2023-01-27 18:15:36,152 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 28 predicate places. [2023-01-27 18:15:36,152 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 44 transitions, 270 flow [2023-01-27 18:15:36,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 65.63636363636364) internal successors, (722), 11 states have internal predecessors, (722), 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 18:15:36,153 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:15:36,153 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:15:36,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-01-27 18:15:36,153 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 18:15:36,154 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:15:36,154 INFO L85 PathProgramCache]: Analyzing trace with hash 152097626, now seen corresponding path program 2 times [2023-01-27 18:15:36,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:15:36,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497745572] [2023-01-27 18:15:36,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:15:36,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:15:36,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:15:36,386 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 18:15:36,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:15:36,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497745572] [2023-01-27 18:15:36,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497745572] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:15:36,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:15:36,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-27 18:15:36,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591615572] [2023-01-27 18:15:36,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:15:36,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-27 18:15:36,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:15:36,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-27 18:15:36,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-01-27 18:15:36,388 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 169 [2023-01-27 18:15:36,388 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 44 transitions, 270 flow. Second operand has 5 states, 5 states have (on average 73.8) internal successors, (369), 5 states have internal predecessors, (369), 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 18:15:36,388 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:15:36,389 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 169 [2023-01-27 18:15:36,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:15:36,478 INFO L130 PetriNetUnfolder]: 52/139 cut-off events. [2023-01-27 18:15:36,478 INFO L131 PetriNetUnfolder]: For 214/214 co-relation queries the response was YES. [2023-01-27 18:15:36,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 549 conditions, 139 events. 52/139 cut-off events. For 214/214 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 454 event pairs, 9 based on Foata normal form. 1/140 useless extension candidates. Maximal degree in co-relation 530. Up to 68 conditions per place. [2023-01-27 18:15:36,479 INFO L137 encePairwiseOnDemand]: 165/169 looper letters, 26 selfloop transitions, 1 changer transitions 39/66 dead transitions. [2023-01-27 18:15:36,479 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 66 transitions, 532 flow [2023-01-27 18:15:36,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-27 18:15:36,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-27 18:15:36,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 383 transitions. [2023-01-27 18:15:36,480 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4532544378698225 [2023-01-27 18:15:36,481 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 383 transitions. [2023-01-27 18:15:36,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 383 transitions. [2023-01-27 18:15:36,481 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:15:36,481 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 383 transitions. [2023-01-27 18:15:36,482 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 76.6) internal successors, (383), 5 states have internal predecessors, (383), 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 18:15:36,483 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 169.0) internal successors, (1014), 6 states have internal predecessors, (1014), 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 18:15:36,483 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 169.0) internal successors, (1014), 6 states have internal predecessors, (1014), 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 18:15:36,483 INFO L175 Difference]: Start difference. First operand has 57 places, 44 transitions, 270 flow. Second operand 5 states and 383 transitions. [2023-01-27 18:15:36,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 66 transitions, 532 flow [2023-01-27 18:15:36,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 66 transitions, 469 flow, removed 23 selfloop flow, removed 5 redundant places. [2023-01-27 18:15:36,487 INFO L231 Difference]: Finished difference. Result has 58 places, 27 transitions, 129 flow [2023-01-27 18:15:36,488 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=129, PETRI_PLACES=58, PETRI_TRANSITIONS=27} [2023-01-27 18:15:36,488 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 29 predicate places. [2023-01-27 18:15:36,488 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 27 transitions, 129 flow [2023-01-27 18:15:36,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.8) internal successors, (369), 5 states have internal predecessors, (369), 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 18:15:36,489 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:15:36,489 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:15:36,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-01-27 18:15:36,489 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 18:15:36,489 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:15:36,489 INFO L85 PathProgramCache]: Analyzing trace with hash 319043860, now seen corresponding path program 3 times [2023-01-27 18:15:36,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:15:36,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086025338] [2023-01-27 18:15:36,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:15:36,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:15:36,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:15:37,608 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 18:15:37,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:15:37,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086025338] [2023-01-27 18:15:37,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086025338] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:15:37,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:15:37,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-01-27 18:15:37,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884858977] [2023-01-27 18:15:37,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:15:37,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-01-27 18:15:37,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:15:37,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-01-27 18:15:37,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-01-27 18:15:37,610 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 169 [2023-01-27 18:15:37,611 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 27 transitions, 129 flow. Second operand has 9 states, 9 states have (on average 67.0) internal successors, (603), 9 states have internal predecessors, (603), 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 18:15:37,611 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:15:37,611 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 169 [2023-01-27 18:15:37,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:15:37,804 INFO L130 PetriNetUnfolder]: 15/65 cut-off events. [2023-01-27 18:15:37,805 INFO L131 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2023-01-27 18:15:37,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 234 conditions, 65 events. 15/65 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 134 event pairs, 8 based on Foata normal form. 1/66 useless extension candidates. Maximal degree in co-relation 215. Up to 20 conditions per place. [2023-01-27 18:15:37,805 INFO L137 encePairwiseOnDemand]: 161/169 looper letters, 15 selfloop transitions, 5 changer transitions 15/36 dead transitions. [2023-01-27 18:15:37,805 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 36 transitions, 233 flow [2023-01-27 18:15:37,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-27 18:15:37,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-01-27 18:15:37,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 550 transitions. [2023-01-27 18:15:37,808 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4068047337278107 [2023-01-27 18:15:37,808 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 550 transitions. [2023-01-27 18:15:37,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 550 transitions. [2023-01-27 18:15:37,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:15:37,809 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 550 transitions. [2023-01-27 18:15:37,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 68.75) internal successors, (550), 8 states have internal predecessors, (550), 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 18:15:37,811 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 169.0) internal successors, (1521), 9 states have internal predecessors, (1521), 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 18:15:37,811 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 169.0) internal successors, (1521), 9 states have internal predecessors, (1521), 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 18:15:37,812 INFO L175 Difference]: Start difference. First operand has 58 places, 27 transitions, 129 flow. Second operand 8 states and 550 transitions. [2023-01-27 18:15:37,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 36 transitions, 233 flow [2023-01-27 18:15:37,812 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 36 transitions, 201 flow, removed 9 selfloop flow, removed 13 redundant places. [2023-01-27 18:15:37,813 INFO L231 Difference]: Finished difference. Result has 46 places, 21 transitions, 94 flow [2023-01-27 18:15:37,813 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=94, PETRI_PLACES=46, PETRI_TRANSITIONS=21} [2023-01-27 18:15:37,813 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 17 predicate places. [2023-01-27 18:15:37,813 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 21 transitions, 94 flow [2023-01-27 18:15:37,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 67.0) internal successors, (603), 9 states have internal predecessors, (603), 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 18:15:37,814 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:15:37,814 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 18:15:37,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-01-27 18:15:37,814 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 18:15:37,814 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:15:37,814 INFO L85 PathProgramCache]: Analyzing trace with hash -189233210, now seen corresponding path program 4 times [2023-01-27 18:15:37,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:15:37,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154302152] [2023-01-27 18:15:37,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:15:37,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:15:37,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:15:40,004 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 18:15:40,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:15:40,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154302152] [2023-01-27 18:15:40,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154302152] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:15:40,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:15:40,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-01-27 18:15:40,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697704983] [2023-01-27 18:15:40,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:15:40,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-01-27 18:15:40,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:15:40,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-01-27 18:15:40,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-01-27 18:15:40,006 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 169 [2023-01-27 18:15:40,006 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 21 transitions, 94 flow. Second operand has 12 states, 12 states have (on average 61.5) internal successors, (738), 12 states have internal predecessors, (738), 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 18:15:40,007 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:15:40,007 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 169 [2023-01-27 18:15:40,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:15:40,418 INFO L130 PetriNetUnfolder]: 8/40 cut-off events. [2023-01-27 18:15:40,418 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2023-01-27 18:15:40,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 40 events. 8/40 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 55 event pairs, 0 based on Foata normal form. 1/41 useless extension candidates. Maximal degree in co-relation 127. Up to 15 conditions per place. [2023-01-27 18:15:40,418 INFO L137 encePairwiseOnDemand]: 159/169 looper letters, 0 selfloop transitions, 0 changer transitions 24/24 dead transitions. [2023-01-27 18:15:40,418 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 24 transitions, 149 flow [2023-01-27 18:15:40,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-01-27 18:15:40,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-01-27 18:15:40,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 622 transitions. [2023-01-27 18:15:40,420 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3680473372781065 [2023-01-27 18:15:40,420 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 622 transitions. [2023-01-27 18:15:40,420 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 622 transitions. [2023-01-27 18:15:40,420 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:15:40,420 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 622 transitions. [2023-01-27 18:15:40,422 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 62.2) internal successors, (622), 10 states have internal predecessors, (622), 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 18:15:40,423 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 169.0) internal successors, (1859), 11 states have internal predecessors, (1859), 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 18:15:40,424 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 169.0) internal successors, (1859), 11 states have internal predecessors, (1859), 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 18:15:40,424 INFO L175 Difference]: Start difference. First operand has 46 places, 21 transitions, 94 flow. Second operand 10 states and 622 transitions. [2023-01-27 18:15:40,424 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 24 transitions, 149 flow [2023-01-27 18:15:40,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 24 transitions, 127 flow, removed 2 selfloop flow, removed 10 redundant places. [2023-01-27 18:15:40,425 INFO L231 Difference]: Finished difference. Result has 41 places, 0 transitions, 0 flow [2023-01-27 18:15:40,425 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=41, PETRI_TRANSITIONS=0} [2023-01-27 18:15:40,425 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 12 predicate places. [2023-01-27 18:15:40,425 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 0 transitions, 0 flow [2023-01-27 18:15:40,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 61.5) internal successors, (738), 12 states have internal predecessors, (738), 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 18:15:40,427 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2023-01-27 18:15:40,428 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2023-01-27 18:15:40,428 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-01-27 18:15:40,428 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2023-01-27 18:15:40,428 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2023-01-27 18:15:40,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-01-27 18:15:40,428 INFO L445 BasicCegarLoop]: Path program histogram: [4, 2, 1, 1, 1, 1, 1, 1] [2023-01-27 18:15:40,431 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-27 18:15:40,431 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-27 18:15:40,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 06:15:40 BasicIcfg [2023-01-27 18:15:40,433 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-27 18:15:40,434 INFO L158 Benchmark]: Toolchain (without parser) took 16248.05ms. Allocated memory was 362.8MB in the beginning and 775.9MB in the end (delta: 413.1MB). Free memory was 319.7MB in the beginning and 450.0MB in the end (delta: -130.2MB). Peak memory consumption was 284.4MB. Max. memory is 16.0GB. [2023-01-27 18:15:40,434 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 255.9MB. Free memory is still 212.6MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-27 18:15:40,434 INFO L158 Benchmark]: CACSL2BoogieTranslator took 427.95ms. Allocated memory is still 362.8MB. Free memory was 319.7MB in the beginning and 294.1MB in the end (delta: 25.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. [2023-01-27 18:15:40,434 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.50ms. Allocated memory is still 362.8MB. Free memory was 294.1MB in the beginning and 291.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-27 18:15:40,434 INFO L158 Benchmark]: Boogie Preprocessor took 34.28ms. Allocated memory is still 362.8MB. Free memory was 291.1MB in the beginning and 289.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-27 18:15:40,435 INFO L158 Benchmark]: RCFGBuilder took 655.76ms. Allocated memory is still 362.8MB. Free memory was 288.7MB in the beginning and 314.3MB in the end (delta: -25.6MB). Peak memory consumption was 36.3MB. Max. memory is 16.0GB. [2023-01-27 18:15:40,435 INFO L158 Benchmark]: TraceAbstraction took 15074.27ms. Allocated memory was 362.8MB in the beginning and 775.9MB in the end (delta: 413.1MB). Free memory was 313.2MB in the beginning and 450.0MB in the end (delta: -136.7MB). Peak memory consumption was 277.5MB. Max. memory is 16.0GB. [2023-01-27 18:15:40,435 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 255.9MB. Free memory is still 212.6MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 427.95ms. Allocated memory is still 362.8MB. Free memory was 319.7MB in the beginning and 294.1MB in the end (delta: 25.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 51.50ms. Allocated memory is still 362.8MB. Free memory was 294.1MB in the beginning and 291.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 34.28ms. Allocated memory is still 362.8MB. Free memory was 291.1MB in the beginning and 289.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 655.76ms. Allocated memory is still 362.8MB. Free memory was 288.7MB in the beginning and 314.3MB in the end (delta: -25.6MB). Peak memory consumption was 36.3MB. Max. memory is 16.0GB. * TraceAbstraction took 15074.27ms. Allocated memory was 362.8MB in the beginning and 775.9MB in the end (delta: 413.1MB). Free memory was 313.2MB in the beginning and 450.0MB in the end (delta: -136.7MB). Peak memory consumption was 277.5MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.5s, 95 PlacesBefore, 29 PlacesAfterwards, 90 TransitionsBefore, 23 TransitionsAfterwards, 1244 CoEnabledTransitionPairs, 7 FixpointIterations, 36 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 77 TotalNumberOfCompositions, 4348 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1805, independent: 1601, independent conditional: 0, independent unconditional: 1601, dependent: 204, dependent conditional: 0, dependent unconditional: 204, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 681, independent: 652, independent conditional: 0, independent unconditional: 652, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1805, independent: 949, independent conditional: 0, independent unconditional: 949, dependent: 175, dependent conditional: 0, dependent unconditional: 175, unknown: 681, unknown conditional: 0, unknown unconditional: 681] , Statistics on independence cache: Total cache size (in pairs): 69, Positive cache size: 55, Positive conditional cache size: 0, Positive unconditional cache size: 55, 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, 113 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: 15.0s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 200 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 200 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 55 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1446 IncrementalHoareTripleChecker+Invalid, 1501 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 55 mSolverCounterUnsat, 5 mSDtfsCounter, 1446 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 88 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=270occurred in iteration=9, InterpolantAutomatonStates: 77, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 9.4s InterpolantComputationTime, 170 NumberOfCodeBlocks, 170 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 158 ConstructedInterpolants, 0 QuantifiedInterpolants, 3033 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 18:15:40,466 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...