/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-NoLbe-Before.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/parallel-bakery-2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-19 07:30:18,636 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 07:30:18,638 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 07:30:18,703 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 07:30:18,703 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 07:30:18,704 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 07:30:18,705 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 07:30:18,707 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 07:30:18,708 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 07:30:18,709 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 07:30:18,710 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 07:30:18,711 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 07:30:18,711 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 07:30:18,712 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 07:30:18,713 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 07:30:18,714 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 07:30:18,714 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 07:30:18,715 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 07:30:18,716 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 07:30:18,718 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 07:30:18,719 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 07:30:18,722 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 07:30:18,723 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 07:30:18,724 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 07:30:18,726 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-19 07:30:18,726 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-19 07:30:18,727 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-19 07:30:18,727 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-19 07:30:18,728 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-19 07:30:18,728 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-19 07:30:18,729 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-19 07:30:18,729 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-19 07:30:18,730 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-19 07:30:18,731 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-19 07:30:18,740 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-19 07:30:18,740 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-19 07:30:18,741 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-19 07:30:18,741 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-19 07:30:18,741 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 07:30:18,745 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 07:30:18,746 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 07:30:18,747 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-NoLbe-Before.epf [2022-01-19 07:30:18,779 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 07:30:18,779 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 07:30:18,780 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 07:30:18,780 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 07:30:18,781 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 07:30:18,781 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 07:30:18,781 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 07:30:18,781 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 07:30:18,781 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 07:30:18,781 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 07:30:18,782 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 07:30:18,782 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 07:30:18,782 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 07:30:18,782 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 07:30:18,782 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 07:30:18,782 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 07:30:18,783 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 07:30:18,783 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 07:30:18,783 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 07:30:18,783 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 07:30:18,783 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 07:30:18,783 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 07:30:18,783 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 07:30:18,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 07:30:18,784 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 07:30:18,784 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 07:30:18,784 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 07:30:18,784 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 07:30:18,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 07:30:18,784 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 07:30:18,784 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 07:30:18,784 INFO L138 SettingsManager]: * When to check the insufficient erros location relative to the other error locations=BEFORE [2022-01-19 07:30:18,785 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 07:30:19,002 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 07:30:19,024 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 07:30:19,026 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 07:30:19,027 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 07:30:19,029 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 07:30:19,030 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-bakery-2.wvr.c [2022-01-19 07:30:19,092 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae0878b40/f7436b4742594bac898cb94543449206/FLAG4829f1bd3 [2022-01-19 07:30:19,483 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 07:30:19,484 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-bakery-2.wvr.c [2022-01-19 07:30:19,491 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae0878b40/f7436b4742594bac898cb94543449206/FLAG4829f1bd3 [2022-01-19 07:30:19,892 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae0878b40/f7436b4742594bac898cb94543449206 [2022-01-19 07:30:19,894 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 07:30:19,895 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 07:30:19,896 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 07:30:19,896 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 07:30:19,899 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 07:30:19,899 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 07:30:19" (1/1) ... [2022-01-19 07:30:19,900 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d67e06c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:30:19, skipping insertion in model container [2022-01-19 07:30:19,900 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 07:30:19" (1/1) ... [2022-01-19 07:30:19,906 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 07:30:19,924 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 07:30:20,153 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-bakery-2.wvr.c[3512,3525] [2022-01-19 07:30:20,159 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 07:30:20,167 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 07:30:20,202 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-bakery-2.wvr.c[3512,3525] [2022-01-19 07:30:20,203 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 07:30:20,217 INFO L208 MainTranslator]: Completed translation [2022-01-19 07:30:20,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:30:20 WrapperNode [2022-01-19 07:30:20,218 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 07:30:20,219 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 07:30:20,219 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 07:30:20,219 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 07:30:20,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:30:20" (1/1) ... [2022-01-19 07:30:20,239 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:30:20" (1/1) ... [2022-01-19 07:30:20,267 INFO L137 Inliner]: procedures = 21, calls = 60, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 156 [2022-01-19 07:30:20,268 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 07:30:20,269 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 07:30:20,269 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 07:30:20,269 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 07:30:20,275 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:30:20" (1/1) ... [2022-01-19 07:30:20,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:30:20" (1/1) ... [2022-01-19 07:30:20,285 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:30:20" (1/1) ... [2022-01-19 07:30:20,286 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:30:20" (1/1) ... [2022-01-19 07:30:20,296 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:30:20" (1/1) ... [2022-01-19 07:30:20,298 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:30:20" (1/1) ... [2022-01-19 07:30:20,299 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:30:20" (1/1) ... [2022-01-19 07:30:20,300 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 07:30:20,301 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 07:30:20,301 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 07:30:20,301 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 07:30:20,306 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:30:20" (1/1) ... [2022-01-19 07:30:20,312 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 07:30:20,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 07:30:20,336 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-19 07:30:20,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-19 07:30:20,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 07:30:20,381 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-19 07:30:20,381 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-19 07:30:20,381 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-19 07:30:20,381 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-19 07:30:20,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 07:30:20,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 07:30:20,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 07:30:20,382 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-19 07:30:20,383 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-19 07:30:20,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 07:30:20,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 07:30:20,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-19 07:30:20,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 07:30:20,385 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-19 07:30:20,472 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 07:30:20,474 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 07:30:20,714 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 07:30:20,775 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 07:30:20,775 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-19 07:30:20,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 07:30:20 BoogieIcfgContainer [2022-01-19 07:30:20,777 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 07:30:20,778 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 07:30:20,778 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 07:30:20,782 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 07:30:20,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 07:30:19" (1/3) ... [2022-01-19 07:30:20,782 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a705b9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 07:30:20, skipping insertion in model container [2022-01-19 07:30:20,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:30:20" (2/3) ... [2022-01-19 07:30:20,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a705b9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 07:30:20, skipping insertion in model container [2022-01-19 07:30:20,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 07:30:20" (3/3) ... [2022-01-19 07:30:20,784 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-bakery-2.wvr.c [2022-01-19 07:30:20,788 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 07:30:20,788 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-19 07:30:20,788 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 07:30:20,828 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:30:20,829 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:30:20,829 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:30:20,830 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:30:20,830 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:30:20,830 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:30:20,830 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:30:20,830 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:30:20,831 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:30:20,831 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:30:20,831 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:30:20,831 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:30:20,833 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:30:20,833 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:30:20,833 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:30:20,833 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:30:20,834 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:30:20,834 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:30:20,834 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:30:20,834 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:30:20,835 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:30:20,835 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:30:20,835 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:30:20,835 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:30:20,835 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:30:20,836 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:30:20,836 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:30:20,836 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:30:20,837 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:30:20,837 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:30:20,837 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:30:20,837 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:30:20,840 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:30:20,840 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:30:20,840 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:30:20,840 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:30:20,840 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:30:20,840 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:30:20,841 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:30:20,841 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:30:20,842 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:30:20,842 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:30:20,842 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:30:20,842 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:30:20,845 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-01-19 07:30:20,887 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 07:30:20,893 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-19 07:30:20,894 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-19 07:30:20,911 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 113 places, 108 transitions, 232 flow [2022-01-19 07:30:20,986 INFO L129 PetriNetUnfolder]: 2/106 cut-off events. [2022-01-19 07:30:20,987 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-01-19 07:30:20,989 INFO L84 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 106 events. 2/106 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/103 useless extension candidates. Maximal degree in co-relation 70. Up to 2 conditions per place. [2022-01-19 07:30:20,989 INFO L82 GeneralOperation]: Start removeDead. Operand has 113 places, 108 transitions, 232 flow [2022-01-19 07:30:20,994 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 97 transitions, 206 flow [2022-01-19 07:30:21,031 INFO L129 PetriNetUnfolder]: 2/96 cut-off events. [2022-01-19 07:30:21,031 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-01-19 07:30:21,032 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:30:21,032 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:30:21,033 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 07:30:21,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:30:21,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1987416869, now seen corresponding path program 1 times [2022-01-19 07:30:21,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:30:21,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404756274] [2022-01-19 07:30:21,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:30:21,050 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:30:21,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:30:21,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:30:21,675 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:30:21,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404756274] [2022-01-19 07:30:21,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404756274] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:30:21,676 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:30:21,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-19 07:30:21,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715260272] [2022-01-19 07:30:21,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:30:21,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-19 07:30:21,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:30:21,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-19 07:30:21,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-19 07:30:21,721 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 108 [2022-01-19 07:30:21,726 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 97 transitions, 206 flow. Second operand has 11 states, 11 states have (on average 75.72727272727273) internal successors, (833), 11 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:30:21,726 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:30:21,726 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 108 [2022-01-19 07:30:21,727 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:30:22,226 INFO L129 PetriNetUnfolder]: 46/296 cut-off events. [2022-01-19 07:30:22,226 INFO L130 PetriNetUnfolder]: For 53/53 co-relation queries the response was YES. [2022-01-19 07:30:22,228 INFO L84 FinitePrefix]: Finished finitePrefix Result has 483 conditions, 296 events. 46/296 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1094 event pairs, 27 based on Foata normal form. 5/293 useless extension candidates. Maximal degree in co-relation 301. Up to 64 conditions per place. [2022-01-19 07:30:22,231 INFO L132 encePairwiseOnDemand]: 90/108 looper letters, 44 selfloop transitions, 13 changer transitions 16/136 dead transitions. [2022-01-19 07:30:22,231 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 136 transitions, 451 flow [2022-01-19 07:30:22,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-19 07:30:22,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-01-19 07:30:22,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1247 transitions. [2022-01-19 07:30:22,250 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7216435185185185 [2022-01-19 07:30:22,250 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1247 transitions. [2022-01-19 07:30:22,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1247 transitions. [2022-01-19 07:30:22,254 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:30:22,257 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1247 transitions. [2022-01-19 07:30:22,262 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 77.9375) internal successors, (1247), 16 states have internal predecessors, (1247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:30:22,270 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 108.0) internal successors, (1836), 17 states have internal predecessors, (1836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:30:22,271 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 108.0) internal successors, (1836), 17 states have internal predecessors, (1836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:30:22,273 INFO L186 Difference]: Start difference. First operand has 102 places, 97 transitions, 206 flow. Second operand 16 states and 1247 transitions. [2022-01-19 07:30:22,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 136 transitions, 451 flow [2022-01-19 07:30:22,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 136 transitions, 429 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-01-19 07:30:22,280 INFO L242 Difference]: Finished difference. Result has 118 places, 98 transitions, 246 flow [2022-01-19 07:30:22,282 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=246, PETRI_PLACES=118, PETRI_TRANSITIONS=98} [2022-01-19 07:30:22,285 INFO L334 CegarLoopForPetriNet]: 102 programPoint places, 16 predicate places. [2022-01-19 07:30:22,285 INFO L470 AbstractCegarLoop]: Abstraction has has 118 places, 98 transitions, 246 flow [2022-01-19 07:30:22,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 75.72727272727273) internal successors, (833), 11 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:30:22,286 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:30:22,286 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:30:22,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 07:30:22,286 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 07:30:22,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:30:22,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1559964915, now seen corresponding path program 2 times [2022-01-19 07:30:22,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:30:22,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461840303] [2022-01-19 07:30:22,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:30:22,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:30:22,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:30:22,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:30:22,343 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:30:22,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461840303] [2022-01-19 07:30:22,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461840303] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:30:22,344 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:30:22,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 07:30:22,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284006037] [2022-01-19 07:30:22,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:30:22,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 07:30:22,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:30:22,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 07:30:22,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 07:30:22,346 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 108 [2022-01-19 07:30:22,347 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 98 transitions, 246 flow. Second operand has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:30:22,347 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:30:22,347 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 108 [2022-01-19 07:30:22,347 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:30:22,403 INFO L129 PetriNetUnfolder]: 31/234 cut-off events. [2022-01-19 07:30:22,403 INFO L130 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-01-19 07:30:22,405 INFO L84 FinitePrefix]: Finished finitePrefix Result has 381 conditions, 234 events. 31/234 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 715 event pairs, 19 based on Foata normal form. 3/230 useless extension candidates. Maximal degree in co-relation 361. Up to 57 conditions per place. [2022-01-19 07:30:22,406 INFO L132 encePairwiseOnDemand]: 105/108 looper letters, 19 selfloop transitions, 2 changer transitions 0/102 dead transitions. [2022-01-19 07:30:22,406 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 102 transitions, 297 flow [2022-01-19 07:30:22,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 07:30:22,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 07:30:22,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2022-01-19 07:30:22,408 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8827160493827161 [2022-01-19 07:30:22,409 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 286 transitions. [2022-01-19 07:30:22,409 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 286 transitions. [2022-01-19 07:30:22,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:30:22,409 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 286 transitions. [2022-01-19 07:30:22,410 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:30:22,411 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:30:22,411 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:30:22,411 INFO L186 Difference]: Start difference. First operand has 118 places, 98 transitions, 246 flow. Second operand 3 states and 286 transitions. [2022-01-19 07:30:22,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 102 transitions, 297 flow [2022-01-19 07:30:22,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 102 transitions, 287 flow, removed 3 selfloop flow, removed 5 redundant places. [2022-01-19 07:30:22,417 INFO L242 Difference]: Finished difference. Result has 106 places, 98 transitions, 244 flow [2022-01-19 07:30:22,417 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=244, PETRI_PLACES=106, PETRI_TRANSITIONS=98} [2022-01-19 07:30:22,418 INFO L334 CegarLoopForPetriNet]: 102 programPoint places, 4 predicate places. [2022-01-19 07:30:22,418 INFO L470 AbstractCegarLoop]: Abstraction has has 106 places, 98 transitions, 244 flow [2022-01-19 07:30:22,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:30:22,419 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:30:22,420 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:30:22,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-19 07:30:22,421 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 07:30:22,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:30:22,422 INFO L85 PathProgramCache]: Analyzing trace with hash 787868635, now seen corresponding path program 3 times [2022-01-19 07:30:22,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:30:22,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5661003] [2022-01-19 07:30:22,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:30:22,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:30:22,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:30:22,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:30:22,616 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:30:22,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5661003] [2022-01-19 07:30:22,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5661003] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:30:22,616 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:30:22,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-19 07:30:22,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488440396] [2022-01-19 07:30:22,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:30:22,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-19 07:30:22,618 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:30:22,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-19 07:30:22,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-19 07:30:22,620 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 108 [2022-01-19 07:30:22,621 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 98 transitions, 244 flow. Second operand has 11 states, 11 states have (on average 75.72727272727273) internal successors, (833), 11 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:30:22,621 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:30:22,621 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 108 [2022-01-19 07:30:22,621 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:30:22,872 INFO L129 PetriNetUnfolder]: 45/274 cut-off events. [2022-01-19 07:30:22,872 INFO L130 PetriNetUnfolder]: For 39/39 co-relation queries the response was YES. [2022-01-19 07:30:22,874 INFO L84 FinitePrefix]: Finished finitePrefix Result has 498 conditions, 274 events. 45/274 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 958 event pairs, 23 based on Foata normal form. 1/272 useless extension candidates. Maximal degree in co-relation 279. Up to 60 conditions per place. [2022-01-19 07:30:22,875 INFO L132 encePairwiseOnDemand]: 94/108 looper letters, 32 selfloop transitions, 12 changer transitions 19/126 dead transitions. [2022-01-19 07:30:22,875 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 126 transitions, 441 flow [2022-01-19 07:30:22,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-19 07:30:22,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-01-19 07:30:22,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 939 transitions. [2022-01-19 07:30:22,879 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7245370370370371 [2022-01-19 07:30:22,879 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 939 transitions. [2022-01-19 07:30:22,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 939 transitions. [2022-01-19 07:30:22,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:30:22,880 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 939 transitions. [2022-01-19 07:30:22,882 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 78.25) internal successors, (939), 12 states have internal predecessors, (939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:30:22,885 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 108.0) internal successors, (1404), 13 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:30:22,885 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 108.0) internal successors, (1404), 13 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:30:22,885 INFO L186 Difference]: Start difference. First operand has 106 places, 98 transitions, 244 flow. Second operand 12 states and 939 transitions. [2022-01-19 07:30:22,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 126 transitions, 441 flow [2022-01-19 07:30:22,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 126 transitions, 437 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-01-19 07:30:22,892 INFO L242 Difference]: Finished difference. Result has 118 places, 95 transitions, 257 flow [2022-01-19 07:30:22,892 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=257, PETRI_PLACES=118, PETRI_TRANSITIONS=95} [2022-01-19 07:30:22,894 INFO L334 CegarLoopForPetriNet]: 102 programPoint places, 16 predicate places. [2022-01-19 07:30:22,894 INFO L470 AbstractCegarLoop]: Abstraction has has 118 places, 95 transitions, 257 flow [2022-01-19 07:30:22,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 75.72727272727273) internal successors, (833), 11 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:30:22,895 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:30:22,895 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:30:22,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-19 07:30:22,895 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 07:30:22,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:30:22,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1468726647, now seen corresponding path program 4 times [2022-01-19 07:30:22,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:30:22,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212175257] [2022-01-19 07:30:22,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:30:22,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:30:22,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:30:23,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:30:23,072 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:30:23,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212175257] [2022-01-19 07:30:23,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212175257] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:30:23,072 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:30:23,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-19 07:30:23,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734812160] [2022-01-19 07:30:23,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:30:23,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 07:30:23,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:30:23,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 07:30:23,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-01-19 07:30:23,080 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 108 [2022-01-19 07:30:23,081 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 95 transitions, 257 flow. Second operand has 9 states, 9 states have (on average 79.88888888888889) internal successors, (719), 9 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:30:23,081 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:30:23,081 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 108 [2022-01-19 07:30:23,081 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:30:23,202 INFO L129 PetriNetUnfolder]: 40/265 cut-off events. [2022-01-19 07:30:23,202 INFO L130 PetriNetUnfolder]: For 45/45 co-relation queries the response was YES. [2022-01-19 07:30:23,203 INFO L84 FinitePrefix]: Finished finitePrefix Result has 510 conditions, 265 events. 40/265 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 878 event pairs, 10 based on Foata normal form. 3/266 useless extension candidates. Maximal degree in co-relation 490. Up to 59 conditions per place. [2022-01-19 07:30:23,204 INFO L132 encePairwiseOnDemand]: 97/108 looper letters, 32 selfloop transitions, 11 changer transitions 7/119 dead transitions. [2022-01-19 07:30:23,204 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 119 transitions, 413 flow [2022-01-19 07:30:23,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 07:30:23,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 07:30:23,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 744 transitions. [2022-01-19 07:30:23,207 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7654320987654321 [2022-01-19 07:30:23,207 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 744 transitions. [2022-01-19 07:30:23,207 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 744 transitions. [2022-01-19 07:30:23,207 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:30:23,208 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 744 transitions. [2022-01-19 07:30:23,209 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 82.66666666666667) internal successors, (744), 9 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:30:23,211 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 108.0) internal successors, (1080), 10 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:30:23,211 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 108.0) internal successors, (1080), 10 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:30:23,211 INFO L186 Difference]: Start difference. First operand has 118 places, 95 transitions, 257 flow. Second operand 9 states and 744 transitions. [2022-01-19 07:30:23,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 119 transitions, 413 flow [2022-01-19 07:30:23,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 119 transitions, 370 flow, removed 4 selfloop flow, removed 13 redundant places. [2022-01-19 07:30:23,216 INFO L242 Difference]: Finished difference. Result has 112 places, 100 transitions, 264 flow [2022-01-19 07:30:23,216 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=264, PETRI_PLACES=112, PETRI_TRANSITIONS=100} [2022-01-19 07:30:23,217 INFO L334 CegarLoopForPetriNet]: 102 programPoint places, 10 predicate places. [2022-01-19 07:30:23,217 INFO L470 AbstractCegarLoop]: Abstraction has has 112 places, 100 transitions, 264 flow [2022-01-19 07:30:23,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 79.88888888888889) internal successors, (719), 9 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:30:23,218 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:30:23,218 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:30:23,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-19 07:30:23,218 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 07:30:23,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:30:23,219 INFO L85 PathProgramCache]: Analyzing trace with hash -241955817, now seen corresponding path program 5 times [2022-01-19 07:30:23,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:30:23,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709626389] [2022-01-19 07:30:23,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:30:23,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:30:23,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:30:23,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:30:23,329 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:30:23,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709626389] [2022-01-19 07:30:23,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709626389] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:30:23,330 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:30:23,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-19 07:30:23,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589463546] [2022-01-19 07:30:23,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:30:23,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 07:30:23,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:30:23,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 07:30:23,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-01-19 07:30:23,332 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 108 [2022-01-19 07:30:23,333 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 100 transitions, 264 flow. Second operand has 9 states, 9 states have (on average 79.88888888888889) internal successors, (719), 9 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:30:23,333 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:30:23,333 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 108 [2022-01-19 07:30:23,333 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:30:23,453 INFO L129 PetriNetUnfolder]: 26/247 cut-off events. [2022-01-19 07:30:23,453 INFO L130 PetriNetUnfolder]: For 61/61 co-relation queries the response was YES. [2022-01-19 07:30:23,454 INFO L84 FinitePrefix]: Finished finitePrefix Result has 466 conditions, 247 events. 26/247 cut-off events. For 61/61 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 770 event pairs, 8 based on Foata normal form. 4/249 useless extension candidates. Maximal degree in co-relation 270. Up to 51 conditions per place. [2022-01-19 07:30:23,454 INFO L132 encePairwiseOnDemand]: 95/108 looper letters, 32 selfloop transitions, 12 changer transitions 8/121 dead transitions. [2022-01-19 07:30:23,455 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 121 transitions, 435 flow [2022-01-19 07:30:23,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 07:30:23,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 07:30:23,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 745 transitions. [2022-01-19 07:30:23,457 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7664609053497943 [2022-01-19 07:30:23,457 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 745 transitions. [2022-01-19 07:30:23,457 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 745 transitions. [2022-01-19 07:30:23,458 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:30:23,458 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 745 transitions. [2022-01-19 07:30:23,459 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 82.77777777777777) internal successors, (745), 9 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:30:23,461 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 108.0) internal successors, (1080), 10 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:30:23,462 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 108.0) internal successors, (1080), 10 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:30:23,462 INFO L186 Difference]: Start difference. First operand has 112 places, 100 transitions, 264 flow. Second operand 9 states and 745 transitions. [2022-01-19 07:30:23,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 121 transitions, 435 flow [2022-01-19 07:30:23,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 121 transitions, 420 flow, removed 4 selfloop flow, removed 4 redundant places. [2022-01-19 07:30:23,468 INFO L242 Difference]: Finished difference. Result has 119 places, 100 transitions, 303 flow [2022-01-19 07:30:23,468 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=303, PETRI_PLACES=119, PETRI_TRANSITIONS=100} [2022-01-19 07:30:23,470 INFO L334 CegarLoopForPetriNet]: 102 programPoint places, 17 predicate places. [2022-01-19 07:30:23,470 INFO L470 AbstractCegarLoop]: Abstraction has has 119 places, 100 transitions, 303 flow [2022-01-19 07:30:23,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 79.88888888888889) internal successors, (719), 9 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:30:23,471 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:30:23,471 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:30:23,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-19 07:30:23,472 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 07:30:23,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:30:23,472 INFO L85 PathProgramCache]: Analyzing trace with hash -199218763, now seen corresponding path program 6 times [2022-01-19 07:30:23,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:30:23,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833867892] [2022-01-19 07:30:23,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:30:23,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:30:23,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:30:23,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:30:23,625 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:30:23,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833867892] [2022-01-19 07:30:23,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833867892] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:30:23,625 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:30:23,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-19 07:30:23,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495093060] [2022-01-19 07:30:23,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:30:23,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-19 07:30:23,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:30:23,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-19 07:30:23,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-19 07:30:23,629 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 108 [2022-01-19 07:30:23,630 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 100 transitions, 303 flow. Second operand has 8 states, 8 states have (on average 80.25) internal successors, (642), 8 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:30:23,630 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:30:23,630 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 108 [2022-01-19 07:30:23,630 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:30:23,726 INFO L129 PetriNetUnfolder]: 12/190 cut-off events. [2022-01-19 07:30:23,726 INFO L130 PetriNetUnfolder]: For 102/106 co-relation queries the response was YES. [2022-01-19 07:30:23,726 INFO L84 FinitePrefix]: Finished finitePrefix Result has 372 conditions, 190 events. 12/190 cut-off events. For 102/106 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 431 event pairs, 4 based on Foata normal form. 5/194 useless extension candidates. Maximal degree in co-relation 226. Up to 37 conditions per place. [2022-01-19 07:30:23,728 INFO L132 encePairwiseOnDemand]: 100/108 looper letters, 23 selfloop transitions, 8 changer transitions 5/105 dead transitions. [2022-01-19 07:30:23,730 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 105 transitions, 387 flow [2022-01-19 07:30:23,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-19 07:30:23,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-01-19 07:30:23,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 653 transitions. [2022-01-19 07:30:23,733 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7557870370370371 [2022-01-19 07:30:23,733 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 653 transitions. [2022-01-19 07:30:23,733 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 653 transitions. [2022-01-19 07:30:23,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:30:23,783 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 653 transitions. [2022-01-19 07:30:23,784 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 81.625) internal successors, (653), 8 states have internal predecessors, (653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:30:23,786 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 108.0) internal successors, (972), 9 states have internal predecessors, (972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:30:23,786 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 108.0) internal successors, (972), 9 states have internal predecessors, (972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:30:23,786 INFO L186 Difference]: Start difference. First operand has 119 places, 100 transitions, 303 flow. Second operand 8 states and 653 transitions. [2022-01-19 07:30:23,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 105 transitions, 387 flow [2022-01-19 07:30:23,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 105 transitions, 342 flow, removed 9 selfloop flow, removed 10 redundant places. [2022-01-19 07:30:23,790 INFO L242 Difference]: Finished difference. Result has 115 places, 97 transitions, 262 flow [2022-01-19 07:30:23,790 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=262, PETRI_PLACES=115, PETRI_TRANSITIONS=97} [2022-01-19 07:30:23,793 INFO L334 CegarLoopForPetriNet]: 102 programPoint places, 13 predicate places. [2022-01-19 07:30:23,793 INFO L470 AbstractCegarLoop]: Abstraction has has 115 places, 97 transitions, 262 flow [2022-01-19 07:30:23,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 80.25) internal successors, (642), 8 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:30:23,793 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:30:23,793 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:30:23,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-19 07:30:23,794 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 07:30:23,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:30:23,794 INFO L85 PathProgramCache]: Analyzing trace with hash -932532537, now seen corresponding path program 7 times [2022-01-19 07:30:23,795 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:30:23,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742911762] [2022-01-19 07:30:23,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:30:23,795 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:30:23,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:30:23,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:30:23,840 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:30:23,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742911762] [2022-01-19 07:30:23,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742911762] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:30:23,841 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:30:23,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 07:30:23,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666871778] [2022-01-19 07:30:23,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:30:23,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 07:30:23,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:30:23,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 07:30:23,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 07:30:23,842 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 108 [2022-01-19 07:30:23,843 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 97 transitions, 262 flow. Second operand has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:30:23,843 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:30:23,843 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 108 [2022-01-19 07:30:23,843 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:30:23,884 INFO L129 PetriNetUnfolder]: 8/172 cut-off events. [2022-01-19 07:30:23,884 INFO L130 PetriNetUnfolder]: For 33/35 co-relation queries the response was YES. [2022-01-19 07:30:23,884 INFO L84 FinitePrefix]: Finished finitePrefix Result has 274 conditions, 172 events. 8/172 cut-off events. For 33/35 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 342 event pairs, 6 based on Foata normal form. 1/171 useless extension candidates. Maximal degree in co-relation 144. Up to 28 conditions per place. [2022-01-19 07:30:23,885 INFO L132 encePairwiseOnDemand]: 105/108 looper letters, 17 selfloop transitions, 2 changer transitions 0/99 dead transitions. [2022-01-19 07:30:23,885 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 99 transitions, 308 flow [2022-01-19 07:30:23,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 07:30:23,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 07:30:23,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 284 transitions. [2022-01-19 07:30:23,886 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8765432098765432 [2022-01-19 07:30:23,886 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 284 transitions. [2022-01-19 07:30:23,886 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 284 transitions. [2022-01-19 07:30:23,887 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:30:23,887 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 284 transitions. [2022-01-19 07:30:23,887 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:30:23,888 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:30:23,891 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:30:23,891 INFO L186 Difference]: Start difference. First operand has 115 places, 97 transitions, 262 flow. Second operand 3 states and 284 transitions. [2022-01-19 07:30:23,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 99 transitions, 308 flow [2022-01-19 07:30:23,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 99 transitions, 278 flow, removed 2 selfloop flow, removed 8 redundant places. [2022-01-19 07:30:23,894 INFO L242 Difference]: Finished difference. Result has 108 places, 97 transitions, 242 flow [2022-01-19 07:30:23,894 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=242, PETRI_PLACES=108, PETRI_TRANSITIONS=97} [2022-01-19 07:30:23,895 INFO L334 CegarLoopForPetriNet]: 102 programPoint places, 6 predicate places. [2022-01-19 07:30:23,895 INFO L470 AbstractCegarLoop]: Abstraction has has 108 places, 97 transitions, 242 flow [2022-01-19 07:30:23,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:30:23,895 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:30:23,896 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:30:23,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-19 07:30:23,896 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 07:30:23,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:30:23,896 INFO L85 PathProgramCache]: Analyzing trace with hash 2047705209, now seen corresponding path program 8 times [2022-01-19 07:30:23,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:30:23,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647791857] [2022-01-19 07:30:23,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:30:23,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:30:23,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:30:24,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:30:24,051 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:30:24,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647791857] [2022-01-19 07:30:24,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647791857] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:30:24,052 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:30:24,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 07:30:24,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252607405] [2022-01-19 07:30:24,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:30:24,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 07:30:24,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:30:24,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 07:30:24,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-01-19 07:30:24,054 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 108 [2022-01-19 07:30:24,055 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 97 transitions, 242 flow. Second operand has 7 states, 7 states have (on average 80.71428571428571) internal successors, (565), 7 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:30:24,055 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:30:24,055 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 108 [2022-01-19 07:30:24,055 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:30:24,108 INFO L129 PetriNetUnfolder]: 4/80 cut-off events. [2022-01-19 07:30:24,108 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-01-19 07:30:24,108 INFO L84 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 80 events. 4/80 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 28 event pairs, 4 based on Foata normal form. 3/82 useless extension candidates. Maximal degree in co-relation 84. Up to 9 conditions per place. [2022-01-19 07:30:24,108 INFO L132 encePairwiseOnDemand]: 102/108 looper letters, 0 selfloop transitions, 0 changer transitions 71/71 dead transitions. [2022-01-19 07:30:24,109 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 71 transitions, 204 flow [2022-01-19 07:30:24,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 07:30:24,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 07:30:24,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 557 transitions. [2022-01-19 07:30:24,111 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7367724867724867 [2022-01-19 07:30:24,111 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 557 transitions. [2022-01-19 07:30:24,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 557 transitions. [2022-01-19 07:30:24,111 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:30:24,111 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 557 transitions. [2022-01-19 07:30:24,113 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 79.57142857142857) internal successors, (557), 7 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:30:24,114 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 108.0) internal successors, (864), 8 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:30:24,114 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 108.0) internal successors, (864), 8 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:30:24,114 INFO L186 Difference]: Start difference. First operand has 108 places, 97 transitions, 242 flow. Second operand 7 states and 557 transitions. [2022-01-19 07:30:24,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 71 transitions, 204 flow [2022-01-19 07:30:24,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 71 transitions, 189 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-01-19 07:30:24,115 INFO L242 Difference]: Finished difference. Result has 84 places, 0 transitions, 0 flow [2022-01-19 07:30:24,116 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=84, PETRI_TRANSITIONS=0} [2022-01-19 07:30:24,116 INFO L334 CegarLoopForPetriNet]: 102 programPoint places, -18 predicate places. [2022-01-19 07:30:24,116 INFO L470 AbstractCegarLoop]: Abstraction has has 84 places, 0 transitions, 0 flow [2022-01-19 07:30:24,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 80.71428571428571) internal successors, (565), 7 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:30:24,119 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-19 07:30:24,119 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-01-19 07:30:24,119 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-01-19 07:30:24,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-19 07:30:24,123 INFO L732 BasicCegarLoop]: Path program histogram: [8] [2022-01-19 07:30:24,125 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-19 07:30:24,125 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-19 07:30:24,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.01 07:30:24 BasicIcfg [2022-01-19 07:30:24,128 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-19 07:30:24,128 INFO L158 Benchmark]: Toolchain (without parser) took 4233.32ms. Allocated memory was 379.6MB in the beginning and 486.5MB in the end (delta: 107.0MB). Free memory was 324.8MB in the beginning and 404.4MB in the end (delta: -79.6MB). Peak memory consumption was 28.1MB. Max. memory is 16.0GB. [2022-01-19 07:30:24,128 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 379.6MB. Free memory is still 341.9MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-19 07:30:24,129 INFO L158 Benchmark]: CACSL2BoogieTranslator took 322.24ms. Allocated memory was 379.6MB in the beginning and 486.5MB in the end (delta: 107.0MB). Free memory was 324.7MB in the beginning and 458.5MB in the end (delta: -133.8MB). Peak memory consumption was 10.8MB. Max. memory is 16.0GB. [2022-01-19 07:30:24,129 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.02ms. Allocated memory is still 486.5MB. Free memory was 458.5MB in the beginning and 457.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-19 07:30:24,130 INFO L158 Benchmark]: Boogie Preprocessor took 31.70ms. Allocated memory is still 486.5MB. Free memory was 457.4MB in the beginning and 455.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 07:30:24,130 INFO L158 Benchmark]: RCFGBuilder took 476.04ms. Allocated memory is still 486.5MB. Free memory was 455.3MB in the beginning and 436.5MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2022-01-19 07:30:24,130 INFO L158 Benchmark]: TraceAbstraction took 3349.35ms. Allocated memory is still 486.5MB. Free memory was 435.4MB in the beginning and 404.4MB in the end (delta: 31.0MB). Peak memory consumption was 31.0MB. Max. memory is 16.0GB. [2022-01-19 07:30:24,132 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 379.6MB. Free memory is still 341.9MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 322.24ms. Allocated memory was 379.6MB in the beginning and 486.5MB in the end (delta: 107.0MB). Free memory was 324.7MB in the beginning and 458.5MB in the end (delta: -133.8MB). Peak memory consumption was 10.8MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 49.02ms. Allocated memory is still 486.5MB. Free memory was 458.5MB in the beginning and 457.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. * Boogie Preprocessor took 31.70ms. Allocated memory is still 486.5MB. Free memory was 457.4MB in the beginning and 455.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 476.04ms. Allocated memory is still 486.5MB. Free memory was 455.3MB in the beginning and 436.5MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * TraceAbstraction took 3349.35ms. Allocated memory is still 486.5MB. Free memory was 435.4MB in the beginning and 404.4MB in the end (delta: 31.0MB). Peak memory consumption was 31.0MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 130]: 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, 133 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.2s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 293 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 293 mSDsluCounter, 293 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 578 mSDsCounter, 58 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1005 IncrementalHoareTripleChecker+Invalid, 1063 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 58 mSolverCounterUnsat, 95 mSDtfsCounter, 1005 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=303occurred in iteration=5, InterpolantAutomatonStates: 67, 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, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 744 NumberOfCodeBlocks, 744 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 736 ConstructedInterpolants, 0 QuantifiedInterpolants, 2089 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-01-19 07:30:24,162 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...