/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-parallel-sum-1.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-19 07:40:10,715 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 07:40:10,717 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 07:40:10,759 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 07:40:10,760 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 07:40:10,760 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 07:40:10,761 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 07:40:10,762 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 07:40:10,763 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 07:40:10,763 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 07:40:10,764 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 07:40:10,765 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 07:40:10,765 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 07:40:10,765 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 07:40:10,766 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 07:40:10,767 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 07:40:10,767 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 07:40:10,768 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 07:40:10,769 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 07:40:10,770 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 07:40:10,777 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 07:40:10,778 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 07:40:10,778 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 07:40:10,779 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 07:40:10,781 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-19 07:40:10,781 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-19 07:40:10,781 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-19 07:40:10,782 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-19 07:40:10,782 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-19 07:40:10,782 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-19 07:40:10,783 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-19 07:40:10,783 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-19 07:40:10,783 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-19 07:40:10,784 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-19 07:40:10,785 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-19 07:40:10,785 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-19 07:40:10,785 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-19 07:40:10,786 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-19 07:40:10,786 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 07:40:10,786 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 07:40:10,787 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 07:40:10,788 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 07:40:10,815 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 07:40:10,815 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 07:40:10,816 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 07:40:10,816 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 07:40:10,816 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 07:40:10,816 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 07:40:10,816 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 07:40:10,817 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 07:40:10,817 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 07:40:10,817 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 07:40:10,817 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 07:40:10,817 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 07:40:10,817 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 07:40:10,817 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 07:40:10,817 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 07:40:10,817 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 07:40:10,817 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 07:40:10,818 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 07:40:10,818 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 07:40:10,818 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 07:40:10,818 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 07:40:10,818 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 07:40:10,818 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 07:40:10,818 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 07:40:10,818 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 07:40:10,818 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 07:40:10,818 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 07:40:10,819 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 07:40:10,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 07:40:10,819 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 07:40:10,819 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 07:40:10,819 INFO L138 SettingsManager]: * When to check the insufficient erros location relative to the other error locations=BEFORE [2022-01-19 07:40:10,819 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 07:40:10,993 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 07:40:11,009 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 07:40:11,011 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 07:40:11,012 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 07:40:11,012 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 07:40:11,013 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-parallel-sum-1.wvr.c [2022-01-19 07:40:11,063 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18d8290aa/e88857035f624bfeab5b8d173a1771d5/FLAG77699c054 [2022-01-19 07:40:11,417 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 07:40:11,418 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-parallel-sum-1.wvr.c [2022-01-19 07:40:11,422 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18d8290aa/e88857035f624bfeab5b8d173a1771d5/FLAG77699c054 [2022-01-19 07:40:11,830 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18d8290aa/e88857035f624bfeab5b8d173a1771d5 [2022-01-19 07:40:11,832 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 07:40:11,832 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 07:40:11,844 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 07:40:11,844 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 07:40:11,846 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 07:40:11,846 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 07:40:11" (1/1) ... [2022-01-19 07:40:11,847 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65acae2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:40:11, skipping insertion in model container [2022-01-19 07:40:11,847 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 07:40:11" (1/1) ... [2022-01-19 07:40:11,853 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 07:40:11,866 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 07:40:12,037 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-parallel-sum-1.wvr.c[3642,3655] [2022-01-19 07:40:12,045 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 07:40:12,054 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 07:40:12,074 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-parallel-sum-1.wvr.c[3642,3655] [2022-01-19 07:40:12,077 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 07:40:12,088 INFO L208 MainTranslator]: Completed translation [2022-01-19 07:40:12,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:40:12 WrapperNode [2022-01-19 07:40:12,088 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 07:40:12,089 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 07:40:12,089 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 07:40:12,089 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 07:40:12,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:40:12" (1/1) ... [2022-01-19 07:40:12,100 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:40:12" (1/1) ... [2022-01-19 07:40:12,118 INFO L137 Inliner]: procedures = 27, calls = 68, calls flagged for inlining = 18, calls inlined = 24, statements flattened = 297 [2022-01-19 07:40:12,118 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 07:40:12,119 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 07:40:12,119 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 07:40:12,119 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 07:40:12,125 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:40:12" (1/1) ... [2022-01-19 07:40:12,125 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:40:12" (1/1) ... [2022-01-19 07:40:12,128 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:40:12" (1/1) ... [2022-01-19 07:40:12,128 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:40:12" (1/1) ... [2022-01-19 07:40:12,134 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:40:12" (1/1) ... [2022-01-19 07:40:12,137 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:40:12" (1/1) ... [2022-01-19 07:40:12,151 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:40:12" (1/1) ... [2022-01-19 07:40:12,153 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 07:40:12,154 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 07:40:12,154 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 07:40:12,154 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 07:40:12,155 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:40:12" (1/1) ... [2022-01-19 07:40:12,160 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 07:40:12,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 07:40:12,176 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 07:40:12,181 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 07:40:12,204 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 07:40:12,204 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 07:40:12,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 07:40:12,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-19 07:40:12,204 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-19 07:40:12,204 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-19 07:40:12,204 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-19 07:40:12,204 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-19 07:40:12,204 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-19 07:40:12,205 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-19 07:40:12,205 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-01-19 07:40:12,205 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-01-19 07:40:12,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 07:40:12,205 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-19 07:40:12,205 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-19 07:40:12,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-19 07:40:12,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 07:40:12,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 07:40:12,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 07:40:12,206 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 07:40:12,286 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 07:40:12,287 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 07:40:12,572 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 07:40:12,726 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 07:40:12,726 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-01-19 07:40:12,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 07:40:12 BoogieIcfgContainer [2022-01-19 07:40:12,728 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 07:40:12,730 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 07:40:12,730 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 07:40:12,732 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 07:40:12,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 07:40:11" (1/3) ... [2022-01-19 07:40:12,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@488c9eaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 07:40:12, skipping insertion in model container [2022-01-19 07:40:12,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:40:12" (2/3) ... [2022-01-19 07:40:12,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@488c9eaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 07:40:12, skipping insertion in model container [2022-01-19 07:40:12,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 07:40:12" (3/3) ... [2022-01-19 07:40:12,737 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-1.wvr.c [2022-01-19 07:40:12,742 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 07:40:12,742 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-19 07:40:12,742 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 07:40:12,785 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,785 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,786 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,786 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,786 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,786 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,786 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,786 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,787 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,787 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,787 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,787 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,787 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,788 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,788 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,788 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,788 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,788 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,789 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,789 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,789 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,789 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,790 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,790 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,790 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,790 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,790 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,790 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,791 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,791 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,791 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,791 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,791 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,791 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,791 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,791 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,792 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,792 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,792 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,792 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,792 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,792 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,793 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,793 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,793 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,793 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,793 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,793 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,793 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,794 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,794 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,794 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,794 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,795 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,795 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,795 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,795 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,795 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,796 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,796 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,796 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,796 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,796 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,796 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,796 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,797 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,797 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,797 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,797 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,797 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,798 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,798 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,798 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,799 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,799 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,799 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,799 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,799 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,799 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,800 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,800 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,800 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,800 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,800 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,800 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,801 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,801 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,803 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,807 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,807 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,808 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,808 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,808 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,808 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,808 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,808 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,808 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,808 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,808 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,809 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,809 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,809 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,809 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,809 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,810 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,810 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,810 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,810 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,812 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,812 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,812 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,812 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,813 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,813 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,814 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,814 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,814 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,814 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,814 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,814 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,814 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,814 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,814 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,814 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,815 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,815 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,815 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,815 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,815 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,815 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,815 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,815 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~ret16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,815 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,815 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,815 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,816 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,816 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,816 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,816 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,816 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~ret16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,816 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,817 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,817 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,817 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,820 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,821 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,821 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,821 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,821 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,821 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,821 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,821 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,823 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,823 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,823 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,823 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,823 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,824 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,824 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,824 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,824 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,824 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,824 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,825 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,825 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~ret16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,825 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,825 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,825 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,825 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,825 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,826 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,826 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,826 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,826 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,827 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,827 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,827 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,827 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,827 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,827 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,827 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,827 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,827 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,828 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,828 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,828 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,828 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,828 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,828 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,828 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,828 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,828 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,828 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,829 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,829 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,829 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:40:12,832 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-01-19 07:40:12,872 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 07:40:12,876 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 07:40:12,876 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-19 07:40:12,890 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 204 places, 206 transitions, 444 flow [2022-01-19 07:40:12,952 INFO L129 PetriNetUnfolder]: 15/202 cut-off events. [2022-01-19 07:40:12,952 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-01-19 07:40:12,957 INFO L84 FinitePrefix]: Finished finitePrefix Result has 219 conditions, 202 events. 15/202 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 117 event pairs, 0 based on Foata normal form. 0/186 useless extension candidates. Maximal degree in co-relation 162. Up to 2 conditions per place. [2022-01-19 07:40:12,957 INFO L82 GeneralOperation]: Start removeDead. Operand has 204 places, 206 transitions, 444 flow [2022-01-19 07:40:12,965 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 187 places, 189 transitions, 402 flow [2022-01-19 07:40:13,005 INFO L129 PetriNetUnfolder]: 15/188 cut-off events. [2022-01-19 07:40:13,005 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-01-19 07:40:13,005 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:40:13,006 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:40:13,006 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-19 07:40:13,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:40:13,012 INFO L85 PathProgramCache]: Analyzing trace with hash -912322767, now seen corresponding path program 1 times [2022-01-19 07:40:13,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:40:13,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103410709] [2022-01-19 07:40:13,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:40:13,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:40:13,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:40:13,270 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 07:40:13,270 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:40:13,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103410709] [2022-01-19 07:40:13,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103410709] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:40:13,272 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:40:13,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-19 07:40:13,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319296272] [2022-01-19 07:40:13,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:40:13,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-19 07:40:13,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:40:13,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-19 07:40:13,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-19 07:40:13,314 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 206 [2022-01-19 07:40:13,320 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 189 transitions, 402 flow. Second operand has 2 states, 2 states have (on average 185.0) internal successors, (370), 2 states have internal predecessors, (370), 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 07:40:13,320 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:40:13,320 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 206 [2022-01-19 07:40:13,321 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:40:13,429 INFO L129 PetriNetUnfolder]: 118/325 cut-off events. [2022-01-19 07:40:13,429 INFO L130 PetriNetUnfolder]: For 61/62 co-relation queries the response was YES. [2022-01-19 07:40:13,431 INFO L84 FinitePrefix]: Finished finitePrefix Result has 538 conditions, 325 events. 118/325 cut-off events. For 61/62 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 583 event pairs, 51 based on Foata normal form. 72/378 useless extension candidates. Maximal degree in co-relation 351. Up to 163 conditions per place. [2022-01-19 07:40:13,434 INFO L132 encePairwiseOnDemand]: 196/206 looper letters, 16 selfloop transitions, 0 changer transitions 5/179 dead transitions. [2022-01-19 07:40:13,434 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 179 transitions, 414 flow [2022-01-19 07:40:13,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-19 07:40:13,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-01-19 07:40:13,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 384 transitions. [2022-01-19 07:40:13,448 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9320388349514563 [2022-01-19 07:40:13,449 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 384 transitions. [2022-01-19 07:40:13,449 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 384 transitions. [2022-01-19 07:40:13,452 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:40:13,454 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 384 transitions. [2022-01-19 07:40:13,458 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 192.0) internal successors, (384), 2 states have internal predecessors, (384), 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 07:40:13,464 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 206.0) internal successors, (618), 3 states have internal predecessors, (618), 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 07:40:13,464 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 206.0) internal successors, (618), 3 states have internal predecessors, (618), 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 07:40:13,465 INFO L186 Difference]: Start difference. First operand has 187 places, 189 transitions, 402 flow. Second operand 2 states and 384 transitions. [2022-01-19 07:40:13,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 179 transitions, 414 flow [2022-01-19 07:40:13,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 179 transitions, 398 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-01-19 07:40:13,473 INFO L242 Difference]: Finished difference. Result has 180 places, 174 transitions, 356 flow [2022-01-19 07:40:13,475 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=366, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=356, PETRI_PLACES=180, PETRI_TRANSITIONS=174} [2022-01-19 07:40:13,479 INFO L334 CegarLoopForPetriNet]: 187 programPoint places, -7 predicate places. [2022-01-19 07:40:13,479 INFO L470 AbstractCegarLoop]: Abstraction has has 180 places, 174 transitions, 356 flow [2022-01-19 07:40:13,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 185.0) internal successors, (370), 2 states have internal predecessors, (370), 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 07:40:13,479 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:40:13,480 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:40:13,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 07:40:13,480 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-19 07:40:13,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:40:13,481 INFO L85 PathProgramCache]: Analyzing trace with hash -701672161, now seen corresponding path program 1 times [2022-01-19 07:40:13,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:40:13,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142893204] [2022-01-19 07:40:13,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:40:13,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:40:13,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:40:13,768 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 07:40:13,768 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:40:13,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142893204] [2022-01-19 07:40:13,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142893204] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:40:13,769 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:40:13,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 07:40:13,769 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277690373] [2022-01-19 07:40:13,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:40:13,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 07:40:13,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:40:13,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 07:40:13,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-19 07:40:13,773 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 206 [2022-01-19 07:40:13,774 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 174 transitions, 356 flow. Second operand has 7 states, 7 states have (on average 148.57142857142858) internal successors, (1040), 7 states have internal predecessors, (1040), 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 07:40:13,774 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:40:13,775 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 206 [2022-01-19 07:40:13,775 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:40:13,952 INFO L129 PetriNetUnfolder]: 133/378 cut-off events. [2022-01-19 07:40:13,952 INFO L130 PetriNetUnfolder]: For 19/20 co-relation queries the response was YES. [2022-01-19 07:40:13,954 INFO L84 FinitePrefix]: Finished finitePrefix Result has 618 conditions, 378 events. 133/378 cut-off events. For 19/20 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 813 event pairs, 8 based on Foata normal form. 1/362 useless extension candidates. Maximal degree in co-relation 615. Up to 205 conditions per place. [2022-01-19 07:40:13,957 INFO L132 encePairwiseOnDemand]: 196/206 looper letters, 50 selfloop transitions, 7 changer transitions 4/188 dead transitions. [2022-01-19 07:40:13,957 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 188 transitions, 513 flow [2022-01-19 07:40:13,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 07:40:13,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 07:40:13,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1063 transitions. [2022-01-19 07:40:13,960 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7371705963938974 [2022-01-19 07:40:13,960 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1063 transitions. [2022-01-19 07:40:13,960 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1063 transitions. [2022-01-19 07:40:13,960 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:40:13,960 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1063 transitions. [2022-01-19 07:40:13,962 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 151.85714285714286) internal successors, (1063), 7 states have internal predecessors, (1063), 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 07:40:13,965 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 206.0) internal successors, (1648), 8 states have internal predecessors, (1648), 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 07:40:13,966 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 206.0) internal successors, (1648), 8 states have internal predecessors, (1648), 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 07:40:13,966 INFO L186 Difference]: Start difference. First operand has 180 places, 174 transitions, 356 flow. Second operand 7 states and 1063 transitions. [2022-01-19 07:40:13,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 188 transitions, 513 flow [2022-01-19 07:40:13,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 188 transitions, 513 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-19 07:40:13,972 INFO L242 Difference]: Finished difference. Result has 184 places, 178 transitions, 397 flow [2022-01-19 07:40:13,972 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=397, PETRI_PLACES=184, PETRI_TRANSITIONS=178} [2022-01-19 07:40:13,973 INFO L334 CegarLoopForPetriNet]: 187 programPoint places, -3 predicate places. [2022-01-19 07:40:13,973 INFO L470 AbstractCegarLoop]: Abstraction has has 184 places, 178 transitions, 397 flow [2022-01-19 07:40:13,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 148.57142857142858) internal successors, (1040), 7 states have internal predecessors, (1040), 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 07:40:13,973 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:40:13,974 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:40:13,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-19 07:40:13,974 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-19 07:40:13,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:40:13,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1587033649, now seen corresponding path program 1 times [2022-01-19 07:40:13,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:40:13,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354113272] [2022-01-19 07:40:13,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:40:13,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:40:14,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:40:14,129 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:40:14,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:40:14,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354113272] [2022-01-19 07:40:14,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354113272] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:40:14,130 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:40:14,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-19 07:40:14,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604537516] [2022-01-19 07:40:14,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:40:14,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-19 07:40:14,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:40:14,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-19 07:40:14,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-01-19 07:40:14,132 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 206 [2022-01-19 07:40:14,134 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 178 transitions, 397 flow. Second operand has 8 states, 8 states have (on average 154.25) internal successors, (1234), 8 states have internal predecessors, (1234), 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 07:40:14,134 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:40:14,134 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 206 [2022-01-19 07:40:14,134 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:40:14,367 INFO L129 PetriNetUnfolder]: 346/883 cut-off events. [2022-01-19 07:40:14,367 INFO L130 PetriNetUnfolder]: For 171/173 co-relation queries the response was YES. [2022-01-19 07:40:14,370 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1661 conditions, 883 events. 346/883 cut-off events. For 171/173 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 3761 event pairs, 50 based on Foata normal form. 1/836 useless extension candidates. Maximal degree in co-relation 1654. Up to 208 conditions per place. [2022-01-19 07:40:14,374 INFO L132 encePairwiseOnDemand]: 196/206 looper letters, 59 selfloop transitions, 16 changer transitions 4/213 dead transitions. [2022-01-19 07:40:14,375 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 213 transitions, 663 flow [2022-01-19 07:40:14,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-19 07:40:14,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-01-19 07:40:14,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1276 transitions. [2022-01-19 07:40:14,377 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7742718446601942 [2022-01-19 07:40:14,377 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1276 transitions. [2022-01-19 07:40:14,377 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1276 transitions. [2022-01-19 07:40:14,378 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:40:14,378 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1276 transitions. [2022-01-19 07:40:14,380 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 159.5) internal successors, (1276), 8 states have internal predecessors, (1276), 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 07:40:14,382 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 206.0) internal successors, (1854), 9 states have internal predecessors, (1854), 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 07:40:14,383 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 206.0) internal successors, (1854), 9 states have internal predecessors, (1854), 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 07:40:14,383 INFO L186 Difference]: Start difference. First operand has 184 places, 178 transitions, 397 flow. Second operand 8 states and 1276 transitions. [2022-01-19 07:40:14,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 213 transitions, 663 flow [2022-01-19 07:40:14,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 213 transitions, 644 flow, removed 5 selfloop flow, removed 5 redundant places. [2022-01-19 07:40:14,387 INFO L242 Difference]: Finished difference. Result has 191 places, 187 transitions, 500 flow [2022-01-19 07:40:14,387 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=500, PETRI_PLACES=191, PETRI_TRANSITIONS=187} [2022-01-19 07:40:14,388 INFO L334 CegarLoopForPetriNet]: 187 programPoint places, 4 predicate places. [2022-01-19 07:40:14,388 INFO L470 AbstractCegarLoop]: Abstraction has has 191 places, 187 transitions, 500 flow [2022-01-19 07:40:14,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 154.25) internal successors, (1234), 8 states have internal predecessors, (1234), 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 07:40:14,389 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:40:14,389 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:40:14,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-19 07:40:14,389 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-19 07:40:14,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:40:14,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1825476485, now seen corresponding path program 1 times [2022-01-19 07:40:14,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:40:14,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364263072] [2022-01-19 07:40:14,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:40:14,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:40:14,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:40:14,511 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:40:14,511 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:40:14,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364263072] [2022-01-19 07:40:14,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364263072] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:40:14,512 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:40:14,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-19 07:40:14,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523979355] [2022-01-19 07:40:14,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:40:14,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 07:40:14,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:40:14,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 07:40:14,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-01-19 07:40:14,514 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 206 [2022-01-19 07:40:14,515 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 187 transitions, 500 flow. Second operand has 9 states, 9 states have (on average 139.11111111111111) internal successors, (1252), 9 states have internal predecessors, (1252), 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 07:40:14,515 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:40:14,515 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 206 [2022-01-19 07:40:14,515 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:40:14,854 INFO L129 PetriNetUnfolder]: 378/1027 cut-off events. [2022-01-19 07:40:14,855 INFO L130 PetriNetUnfolder]: For 816/818 co-relation queries the response was YES. [2022-01-19 07:40:14,858 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2271 conditions, 1027 events. 378/1027 cut-off events. For 816/818 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 4651 event pairs, 103 based on Foata normal form. 27/982 useless extension candidates. Maximal degree in co-relation 2260. Up to 503 conditions per place. [2022-01-19 07:40:14,862 INFO L132 encePairwiseOnDemand]: 196/206 looper letters, 69 selfloop transitions, 4 changer transitions 19/210 dead transitions. [2022-01-19 07:40:14,863 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 210 transitions, 772 flow [2022-01-19 07:40:14,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 07:40:14,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 07:40:14,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1285 transitions. [2022-01-19 07:40:14,865 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6930960086299892 [2022-01-19 07:40:14,865 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1285 transitions. [2022-01-19 07:40:14,865 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1285 transitions. [2022-01-19 07:40:14,866 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:40:14,866 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1285 transitions. [2022-01-19 07:40:14,867 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 142.77777777777777) internal successors, (1285), 9 states have internal predecessors, (1285), 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 07:40:14,869 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 206.0) internal successors, (2060), 10 states have internal predecessors, (2060), 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 07:40:14,870 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 206.0) internal successors, (2060), 10 states have internal predecessors, (2060), 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 07:40:14,870 INFO L186 Difference]: Start difference. First operand has 191 places, 187 transitions, 500 flow. Second operand 9 states and 1285 transitions. [2022-01-19 07:40:14,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 210 transitions, 772 flow [2022-01-19 07:40:14,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 210 transitions, 768 flow, removed 2 selfloop flow, removed 2 redundant places. [2022-01-19 07:40:14,876 INFO L242 Difference]: Finished difference. Result has 200 places, 188 transitions, 526 flow [2022-01-19 07:40:14,876 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=496, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=526, PETRI_PLACES=200, PETRI_TRANSITIONS=188} [2022-01-19 07:40:14,877 INFO L334 CegarLoopForPetriNet]: 187 programPoint places, 13 predicate places. [2022-01-19 07:40:14,878 INFO L470 AbstractCegarLoop]: Abstraction has has 200 places, 188 transitions, 526 flow [2022-01-19 07:40:14,878 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 139.11111111111111) internal successors, (1252), 9 states have internal predecessors, (1252), 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 07:40:14,878 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:40:14,878 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:40:14,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-19 07:40:14,878 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-19 07:40:14,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:40:14,879 INFO L85 PathProgramCache]: Analyzing trace with hash -274828740, now seen corresponding path program 1 times [2022-01-19 07:40:14,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:40:14,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429280667] [2022-01-19 07:40:14,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:40:14,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:40:14,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:40:15,095 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:40:15,095 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:40:15,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429280667] [2022-01-19 07:40:15,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429280667] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 07:40:15,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1806867939] [2022-01-19 07:40:15,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:40:15,096 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 07:40:15,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 07:40:15,097 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 07:40:15,139 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-19 07:40:15,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:40:15,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 11 conjunts are in the unsatisfiable core [2022-01-19 07:40:15,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 07:40:15,816 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 07:40:15,816 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 07:40:16,064 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 07:40:16,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1806867939] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 07:40:16,064 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 07:40:16,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 21 [2022-01-19 07:40:16,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033027078] [2022-01-19 07:40:16,065 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 07:40:16,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-19 07:40:16,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:40:16,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-19 07:40:16,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=361, Unknown=0, NotChecked=0, Total=420 [2022-01-19 07:40:16,068 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 206 [2022-01-19 07:40:16,070 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 188 transitions, 526 flow. Second operand has 21 states, 21 states have (on average 137.9047619047619) internal successors, (2896), 21 states have internal predecessors, (2896), 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 07:40:16,070 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:40:16,071 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 206 [2022-01-19 07:40:16,071 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:40:17,044 INFO L129 PetriNetUnfolder]: 634/1574 cut-off events. [2022-01-19 07:40:17,044 INFO L130 PetriNetUnfolder]: For 1369/1371 co-relation queries the response was YES. [2022-01-19 07:40:17,048 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3616 conditions, 1574 events. 634/1574 cut-off events. For 1369/1371 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 8350 event pairs, 12 based on Foata normal form. 18/1513 useless extension candidates. Maximal degree in co-relation 3601. Up to 526 conditions per place. [2022-01-19 07:40:17,055 INFO L132 encePairwiseOnDemand]: 187/206 looper letters, 96 selfloop transitions, 34 changer transitions 29/276 dead transitions. [2022-01-19 07:40:17,055 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 276 transitions, 1187 flow [2022-01-19 07:40:17,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-19 07:40:17,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-01-19 07:40:17,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 3614 transitions. [2022-01-19 07:40:17,060 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6747572815533981 [2022-01-19 07:40:17,060 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 3614 transitions. [2022-01-19 07:40:17,060 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 3614 transitions. [2022-01-19 07:40:17,061 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:40:17,061 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 3614 transitions. [2022-01-19 07:40:17,066 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 139.0) internal successors, (3614), 26 states have internal predecessors, (3614), 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 07:40:17,071 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 206.0) internal successors, (5562), 27 states have internal predecessors, (5562), 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 07:40:17,072 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 206.0) internal successors, (5562), 27 states have internal predecessors, (5562), 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 07:40:17,073 INFO L186 Difference]: Start difference. First operand has 200 places, 188 transitions, 526 flow. Second operand 26 states and 3614 transitions. [2022-01-19 07:40:17,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 276 transitions, 1187 flow [2022-01-19 07:40:17,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 276 transitions, 1157 flow, removed 12 selfloop flow, removed 7 redundant places. [2022-01-19 07:40:17,078 INFO L242 Difference]: Finished difference. Result has 228 places, 206 transitions, 766 flow [2022-01-19 07:40:17,079 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=506, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=766, PETRI_PLACES=228, PETRI_TRANSITIONS=206} [2022-01-19 07:40:17,079 INFO L334 CegarLoopForPetriNet]: 187 programPoint places, 41 predicate places. [2022-01-19 07:40:17,079 INFO L470 AbstractCegarLoop]: Abstraction has has 228 places, 206 transitions, 766 flow [2022-01-19 07:40:17,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 137.9047619047619) internal successors, (2896), 21 states have internal predecessors, (2896), 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 07:40:17,080 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:40:17,081 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:40:17,101 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-19 07:40:17,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 07:40:17,296 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-19 07:40:17,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:40:17,296 INFO L85 PathProgramCache]: Analyzing trace with hash -264923283, now seen corresponding path program 1 times [2022-01-19 07:40:17,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:40:17,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529301999] [2022-01-19 07:40:17,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:40:17,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:40:17,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:40:17,772 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:40:17,773 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:40:17,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529301999] [2022-01-19 07:40:17,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529301999] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 07:40:17,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1338706855] [2022-01-19 07:40:17,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:40:17,773 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 07:40:17,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 07:40:17,774 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 07:40:17,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-19 07:40:17,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:40:17,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 54 conjunts are in the unsatisfiable core [2022-01-19 07:40:17,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 07:40:18,611 INFO L353 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2022-01-19 07:40:18,612 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 15 [2022-01-19 07:40:18,776 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 07:40:18,776 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 07:40:19,058 INFO L353 Elim1Store]: treesize reduction 14, result has 22.2 percent of original size [2022-01-19 07:40:19,058 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 12 [2022-01-19 07:40:19,335 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-19 07:40:19,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1338706855] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 07:40:19,336 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 07:40:19,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 13, 10] total 39 [2022-01-19 07:40:19,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333277831] [2022-01-19 07:40:19,336 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 07:40:19,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-01-19 07:40:19,337 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:40:19,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-01-19 07:40:19,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=1338, Unknown=0, NotChecked=0, Total=1482 [2022-01-19 07:40:19,339 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 206 [2022-01-19 07:40:19,342 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 206 transitions, 766 flow. Second operand has 39 states, 39 states have (on average 114.15384615384616) internal successors, (4452), 39 states have internal predecessors, (4452), 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 07:40:19,342 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:40:19,342 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 206 [2022-01-19 07:40:19,342 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:40:25,040 INFO L129 PetriNetUnfolder]: 6619/13726 cut-off events. [2022-01-19 07:40:25,041 INFO L130 PetriNetUnfolder]: For 22127/22129 co-relation queries the response was YES. [2022-01-19 07:40:25,092 INFO L84 FinitePrefix]: Finished finitePrefix Result has 36322 conditions, 13726 events. 6619/13726 cut-off events. For 22127/22129 co-relation queries the response was YES. Maximal size of possible extension queue 539. Compared 115083 event pairs, 74 based on Foata normal form. 91/13096 useless extension candidates. Maximal degree in co-relation 36297. Up to 3748 conditions per place. [2022-01-19 07:40:25,162 INFO L132 encePairwiseOnDemand]: 175/206 looper letters, 488 selfloop transitions, 390 changer transitions 60/1032 dead transitions. [2022-01-19 07:40:25,163 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 1032 transitions, 6792 flow [2022-01-19 07:40:25,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2022-01-19 07:40:25,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2022-01-19 07:40:25,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 9248 transitions. [2022-01-19 07:40:25,178 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5830286218635733 [2022-01-19 07:40:25,178 INFO L72 ComplementDD]: Start complementDD. Operand 77 states and 9248 transitions. [2022-01-19 07:40:25,178 INFO L73 IsDeterministic]: Start isDeterministic. Operand 77 states and 9248 transitions. [2022-01-19 07:40:25,182 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:40:25,182 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 77 states and 9248 transitions. [2022-01-19 07:40:25,199 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 78 states, 77 states have (on average 120.1038961038961) internal successors, (9248), 77 states have internal predecessors, (9248), 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 07:40:25,228 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 78 states, 78 states have (on average 206.0) internal successors, (16068), 78 states have internal predecessors, (16068), 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 07:40:25,233 INFO L81 ComplementDD]: Finished complementDD. Result has 78 states, 78 states have (on average 206.0) internal successors, (16068), 78 states have internal predecessors, (16068), 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 07:40:25,233 INFO L186 Difference]: Start difference. First operand has 228 places, 206 transitions, 766 flow. Second operand 77 states and 9248 transitions. [2022-01-19 07:40:25,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 1032 transitions, 6792 flow [2022-01-19 07:40:25,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 1032 transitions, 6559 flow, removed 103 selfloop flow, removed 11 redundant places. [2022-01-19 07:40:25,277 INFO L242 Difference]: Finished difference. Result has 329 places, 649 transitions, 4835 flow [2022-01-19 07:40:25,278 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=718, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=77, PETRI_FLOW=4835, PETRI_PLACES=329, PETRI_TRANSITIONS=649} [2022-01-19 07:40:25,279 INFO L334 CegarLoopForPetriNet]: 187 programPoint places, 142 predicate places. [2022-01-19 07:40:25,280 INFO L470 AbstractCegarLoop]: Abstraction has has 329 places, 649 transitions, 4835 flow [2022-01-19 07:40:25,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 114.15384615384616) internal successors, (4452), 39 states have internal predecessors, (4452), 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 07:40:25,281 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:40:25,281 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:40:25,299 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-19 07:40:25,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-01-19 07:40:25,500 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-19 07:40:25,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:40:25,500 INFO L85 PathProgramCache]: Analyzing trace with hash -217688117, now seen corresponding path program 2 times [2022-01-19 07:40:25,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:40:25,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887084787] [2022-01-19 07:40:25,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:40:25,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:40:25,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:40:26,043 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:40:26,044 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:40:26,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887084787] [2022-01-19 07:40:26,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887084787] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 07:40:26,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1318214836] [2022-01-19 07:40:26,044 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-19 07:40:26,044 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 07:40:26,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 07:40:26,045 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 07:40:26,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-19 07:40:26,211 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-19 07:40:26,212 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 07:40:26,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 61 conjunts are in the unsatisfiable core [2022-01-19 07:40:26,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 07:40:27,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-19 07:40:27,016 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 25 [2022-01-19 07:40:27,224 INFO L353 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2022-01-19 07:40:27,224 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 15 [2022-01-19 07:40:27,368 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 07:40:27,369 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 07:40:27,732 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 31 [2022-01-19 07:40:27,735 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 11 [2022-01-19 07:40:28,311 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-19 07:40:28,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1318214836] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 07:40:28,311 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 07:40:28,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 20, 18] total 52 [2022-01-19 07:40:28,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92033038] [2022-01-19 07:40:28,312 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 07:40:28,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-01-19 07:40:28,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:40:28,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-01-19 07:40:28,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=2439, Unknown=3, NotChecked=0, Total=2652 [2022-01-19 07:40:28,316 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 206 [2022-01-19 07:40:28,318 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 649 transitions, 4835 flow. Second operand has 52 states, 52 states have (on average 106.6923076923077) internal successors, (5548), 52 states have internal predecessors, (5548), 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 07:40:28,319 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:40:28,319 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 206 [2022-01-19 07:40:28,319 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:40:46,160 INFO L129 PetriNetUnfolder]: 28197/57788 cut-off events. [2022-01-19 07:40:46,160 INFO L130 PetriNetUnfolder]: For 209647/210483 co-relation queries the response was YES. [2022-01-19 07:40:46,987 INFO L84 FinitePrefix]: Finished finitePrefix Result has 197242 conditions, 57788 events. 28197/57788 cut-off events. For 209647/210483 co-relation queries the response was YES. Maximal size of possible extension queue 2279. Compared 607518 event pairs, 933 based on Foata normal form. 340/55027 useless extension candidates. Maximal degree in co-relation 197177. Up to 15299 conditions per place. [2022-01-19 07:40:47,273 INFO L132 encePairwiseOnDemand]: 171/206 looper letters, 1343 selfloop transitions, 1942 changer transitions 50/3424 dead transitions. [2022-01-19 07:40:47,273 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 3424 transitions, 34670 flow [2022-01-19 07:40:47,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2022-01-19 07:40:47,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2022-01-19 07:40:47,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 11254 transitions. [2022-01-19 07:40:47,284 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5463106796116505 [2022-01-19 07:40:47,284 INFO L72 ComplementDD]: Start complementDD. Operand 100 states and 11254 transitions. [2022-01-19 07:40:47,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 100 states and 11254 transitions. [2022-01-19 07:40:47,286 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:40:47,286 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 100 states and 11254 transitions. [2022-01-19 07:40:47,297 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 101 states, 100 states have (on average 112.54) internal successors, (11254), 100 states have internal predecessors, (11254), 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 07:40:47,316 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 101 states, 101 states have (on average 206.0) internal successors, (20806), 101 states have internal predecessors, (20806), 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 07:40:47,321 INFO L81 ComplementDD]: Finished complementDD. Result has 101 states, 101 states have (on average 206.0) internal successors, (20806), 101 states have internal predecessors, (20806), 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 07:40:47,321 INFO L186 Difference]: Start difference. First operand has 329 places, 649 transitions, 4835 flow. Second operand 100 states and 11254 transitions. [2022-01-19 07:40:47,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 3424 transitions, 34670 flow [2022-01-19 07:40:48,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 395 places, 3424 transitions, 32281 flow, removed 1166 selfloop flow, removed 22 redundant places. [2022-01-19 07:40:48,111 INFO L242 Difference]: Finished difference. Result has 459 places, 2766 transitions, 29666 flow [2022-01-19 07:40:48,112 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=4295, PETRI_DIFFERENCE_MINUEND_PLACES=296, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=649, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=339, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=100, PETRI_FLOW=29666, PETRI_PLACES=459, PETRI_TRANSITIONS=2766} [2022-01-19 07:40:48,112 INFO L334 CegarLoopForPetriNet]: 187 programPoint places, 272 predicate places. [2022-01-19 07:40:48,112 INFO L470 AbstractCegarLoop]: Abstraction has has 459 places, 2766 transitions, 29666 flow [2022-01-19 07:40:48,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 106.6923076923077) internal successors, (5548), 52 states have internal predecessors, (5548), 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 07:40:48,114 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:40:48,114 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:40:48,133 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-01-19 07:40:48,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 07:40:48,331 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-19 07:40:48,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:40:48,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1857595897, now seen corresponding path program 3 times [2022-01-19 07:40:48,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:40:48,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838549297] [2022-01-19 07:40:48,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:40:48,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:40:48,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:40:49,258 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:40:49,259 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:40:49,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838549297] [2022-01-19 07:40:49,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838549297] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 07:40:49,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1253164262] [2022-01-19 07:40:49,259 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-19 07:40:49,259 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 07:40:49,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 07:40:49,260 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 07:40:49,261 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-19 07:40:49,371 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-01-19 07:40:49,371 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 07:40:49,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 75 conjunts are in the unsatisfiable core [2022-01-19 07:40:49,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 07:40:50,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-19 07:40:50,904 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 25 [2022-01-19 07:40:51,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-19 07:40:51,045 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 25 [2022-01-19 07:40:51,164 INFO L353 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2022-01-19 07:40:51,164 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 15 [2022-01-19 07:40:51,502 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:40:51,502 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 07:40:52,132 WARN L838 $PredicateComparison]: unable to prove that (or (<= c_~n~0 c_~i2~0) (and (forall ((v_ArrVal_247 (Array Int Int))) (<= (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_247) c_~x~0.base) (+ c_~x~0.offset 4 (* c_~i2~0 4))) c_~s2~0) c_~s1~0)) (forall ((v_ArrVal_247 (Array Int Int))) (<= c_~s1~0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_247) c_~x~0.base) (+ c_~x~0.offset 4 (* c_~i2~0 4))) c_~s2~0)))) (<= (+ 2 c_~i2~0) c_~n~0) (<= (+ c_~n~0 1) c_~i1~0) (<= (+ c_~i1~0 1) c_~n~0)) is different from false [2022-01-19 07:40:52,236 WARN L838 $PredicateComparison]: unable to prove that (or (<= c_~n~0 c_~i2~0) (and (forall ((v_ArrVal_247 (Array Int Int)) (v_ArrVal_246 (Array Int Int))) (<= (+ c_~s2~0 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_246) |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_247) c_~x~0.base) (+ c_~x~0.offset 4 (* c_~i2~0 4)))) c_~s1~0)) (forall ((v_ArrVal_247 (Array Int Int)) (v_ArrVal_246 (Array Int Int))) (<= c_~s1~0 (+ c_~s2~0 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_246) |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_247) c_~x~0.base) (+ c_~x~0.offset 4 (* c_~i2~0 4))))))) (<= (+ 2 c_~i2~0) c_~n~0) (<= (+ c_~n~0 1) c_~i1~0) (<= (+ c_~i1~0 1) c_~n~0)) is different from false [2022-01-19 07:40:52,254 WARN L838 $PredicateComparison]: unable to prove that (or (and (forall ((v_ArrVal_247 (Array Int Int)) (v_ArrVal_246 (Array Int Int))) (<= (+ c_~t11~0 c_~s1~0) (+ c_~s2~0 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_246) |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_247) c_~x~0.base) (+ c_~x~0.offset 4 (* c_~i2~0 4)))))) (forall ((v_ArrVal_247 (Array Int Int)) (v_ArrVal_246 (Array Int Int))) (<= (+ c_~s2~0 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_246) |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_247) c_~x~0.base) (+ c_~x~0.offset 4 (* c_~i2~0 4)))) (+ c_~t11~0 c_~s1~0)))) (<= c_~n~0 c_~i2~0) (<= (+ 2 c_~i2~0) c_~n~0) (<= (+ c_~n~0 1) c_~i1~0) (<= (+ c_~i1~0 1) c_~n~0)) is different from false [2022-01-19 07:40:52,352 INFO L353 Elim1Store]: treesize reduction 14, result has 22.2 percent of original size [2022-01-19 07:40:52,352 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 258 treesize of output 172 [2022-01-19 07:40:52,355 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 160 treesize of output 132 [2022-01-19 07:40:52,359 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 59 [2022-01-19 07:40:52,406 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-19 07:40:52,406 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-19 07:40:52,410 INFO L353 Elim1Store]: treesize reduction 14, result has 22.2 percent of original size [2022-01-19 07:40:52,410 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 12 [2022-01-19 07:40:54,022 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:40:54,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1253164262] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 07:40:54,022 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 07:40:54,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 29, 29] total 77 [2022-01-19 07:40:54,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122828320] [2022-01-19 07:40:54,022 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 07:40:54,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 77 states [2022-01-19 07:40:54,023 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:40:54,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2022-01-19 07:40:54,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=360, Invalid=5051, Unknown=3, NotChecked=438, Total=5852 [2022-01-19 07:40:54,028 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 206 [2022-01-19 07:40:54,032 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 2766 transitions, 29666 flow. Second operand has 77 states, 77 states have (on average 98.8051948051948) internal successors, (7608), 77 states have internal predecessors, (7608), 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 07:40:54,032 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:40:54,032 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 206 [2022-01-19 07:40:54,032 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:41:31,259 INFO L129 PetriNetUnfolder]: 40162/82095 cut-off events. [2022-01-19 07:41:31,260 INFO L130 PetriNetUnfolder]: For 630851/633273 co-relation queries the response was YES. [2022-01-19 07:41:33,447 INFO L84 FinitePrefix]: Finished finitePrefix Result has 378792 conditions, 82095 events. 40162/82095 cut-off events. For 630851/633273 co-relation queries the response was YES. Maximal size of possible extension queue 3197. Compared 904972 event pairs, 3716 based on Foata normal form. 538/78154 useless extension candidates. Maximal degree in co-relation 378674. Up to 23757 conditions per place. [2022-01-19 07:41:33,921 INFO L132 encePairwiseOnDemand]: 165/206 looper letters, 3445 selfloop transitions, 764 changer transitions 59/4354 dead transitions. [2022-01-19 07:41:33,921 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 508 places, 4354 transitions, 56063 flow [2022-01-19 07:41:33,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-01-19 07:41:33,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2022-01-19 07:41:33,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 7048 transitions. [2022-01-19 07:41:33,927 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5031410622501428 [2022-01-19 07:41:33,927 INFO L72 ComplementDD]: Start complementDD. Operand 68 states and 7048 transitions. [2022-01-19 07:41:33,927 INFO L73 IsDeterministic]: Start isDeterministic. Operand 68 states and 7048 transitions. [2022-01-19 07:41:33,929 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:41:33,929 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 68 states and 7048 transitions. [2022-01-19 07:41:33,936 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 69 states, 68 states have (on average 103.6470588235294) internal successors, (7048), 68 states have internal predecessors, (7048), 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 07:41:33,946 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 69 states, 69 states have (on average 206.0) internal successors, (14214), 69 states have internal predecessors, (14214), 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 07:41:33,948 INFO L81 ComplementDD]: Finished complementDD. Result has 69 states, 69 states have (on average 206.0) internal successors, (14214), 69 states have internal predecessors, (14214), 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 07:41:33,948 INFO L186 Difference]: Start difference. First operand has 459 places, 2766 transitions, 29666 flow. Second operand 68 states and 7048 transitions. [2022-01-19 07:41:33,948 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 508 places, 4354 transitions, 56063 flow [2022-01-19 07:41:38,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 473 places, 4354 transitions, 53170 flow, removed 1415 selfloop flow, removed 35 redundant places. [2022-01-19 07:41:38,944 INFO L242 Difference]: Finished difference. Result has 492 places, 2811 transitions, 31205 flow [2022-01-19 07:41:38,946 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=24964, PETRI_DIFFERENCE_MINUEND_PLACES=406, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2487, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=491, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1879, PETRI_DIFFERENCE_SUBTRAHEND_STATES=68, PETRI_FLOW=31205, PETRI_PLACES=492, PETRI_TRANSITIONS=2811} [2022-01-19 07:41:38,946 INFO L334 CegarLoopForPetriNet]: 187 programPoint places, 305 predicate places. [2022-01-19 07:41:38,947 INFO L470 AbstractCegarLoop]: Abstraction has has 492 places, 2811 transitions, 31205 flow [2022-01-19 07:41:38,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 77 states, 77 states have (on average 98.8051948051948) internal successors, (7608), 77 states have internal predecessors, (7608), 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 07:41:38,948 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:41:38,948 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:41:38,967 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-19 07:41:39,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 07:41:39,166 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-19 07:41:39,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:41:39,166 INFO L85 PathProgramCache]: Analyzing trace with hash 978256771, now seen corresponding path program 1 times [2022-01-19 07:41:39,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:41:39,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544918299] [2022-01-19 07:41:39,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:41:39,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:41:39,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:41:39,557 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-19 07:41:39,558 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:41:39,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544918299] [2022-01-19 07:41:39,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544918299] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 07:41:39,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [153602628] [2022-01-19 07:41:39,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:41:39,558 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 07:41:39,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 07:41:39,559 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 07:41:39,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-19 07:41:39,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:41:39,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 67 conjunts are in the unsatisfiable core [2022-01-19 07:41:39,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 07:41:39,693 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-19 07:41:39,771 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-19 07:41:39,772 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-19 07:41:40,311 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-01-19 07:41:40,416 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-19 07:41:40,417 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 23 [2022-01-19 07:41:40,656 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 07:41:40,656 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 07:41:40,994 WARN L838 $PredicateComparison]: unable to prove that (or (<= c_~i1~0 c_~i2~0) (and (forall ((v_ArrVal_293 (Array Int Int))) (<= (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_293) c_~x~0.base) (+ c_~x~0.offset 4 (* c_~i2~0 4))) c_~s2~0) c_~s1~0)) (forall ((v_ArrVal_293 (Array Int Int))) (<= c_~s1~0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_293) c_~x~0.base) (+ c_~x~0.offset 4 (* c_~i2~0 4))) c_~s2~0)))) (<= (+ 2 c_~i2~0) c_~i1~0)) is different from false [2022-01-19 07:41:41,045 WARN L838 $PredicateComparison]: unable to prove that (or (<= c_~i1~0 c_~i2~0) (<= (+ 2 c_~i2~0) c_~i1~0) (and (forall ((v_ArrVal_293 (Array Int Int))) (<= (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_293) c_~x~0.base) (+ c_~x~0.offset 4 (* c_~i2~0 4))) c_~s2~0) (+ c_~t11~0 c_~s1~0))) (forall ((v_ArrVal_293 (Array Int Int))) (<= (+ c_~t11~0 c_~s1~0) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_293) c_~x~0.base) (+ c_~x~0.offset 4 (* c_~i2~0 4))) c_~s2~0))))) is different from false [2022-01-19 07:41:41,059 INFO L353 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2022-01-19 07:41:41,059 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 113 treesize of output 68 [2022-01-19 07:41:41,431 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-19 07:41:41,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [153602628] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 07:41:41,431 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 07:41:41,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 20, 18] total 40 [2022-01-19 07:41:41,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078333209] [2022-01-19 07:41:41,432 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 07:41:41,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-01-19 07:41:41,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:41:41,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-01-19 07:41:41,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=1285, Unknown=2, NotChecked=146, Total=1560 [2022-01-19 07:41:41,434 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 206 [2022-01-19 07:41:41,436 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 492 places, 2811 transitions, 31205 flow. Second operand has 40 states, 40 states have (on average 106.05) internal successors, (4242), 40 states have internal predecessors, (4242), 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 07:41:41,436 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:41:41,436 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 206 [2022-01-19 07:41:41,436 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:42:16,258 INFO L129 PetriNetUnfolder]: 47598/98289 cut-off events. [2022-01-19 07:42:16,258 INFO L130 PetriNetUnfolder]: For 888675/892752 co-relation queries the response was YES. [2022-01-19 07:42:18,931 INFO L84 FinitePrefix]: Finished finitePrefix Result has 472782 conditions, 98289 events. 47598/98289 cut-off events. For 888675/892752 co-relation queries the response was YES. Maximal size of possible extension queue 3732. Compared 1122399 event pairs, 4461 based on Foata normal form. 604/93057 useless extension candidates. Maximal degree in co-relation 472664. Up to 53814 conditions per place. [2022-01-19 07:42:19,594 INFO L132 encePairwiseOnDemand]: 173/206 looper letters, 2616 selfloop transitions, 831 changer transitions 30/3568 dead transitions. [2022-01-19 07:42:19,595 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 526 places, 3568 transitions, 47548 flow [2022-01-19 07:42:19,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-19 07:42:19,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2022-01-19 07:42:19,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 4589 transitions. [2022-01-19 07:42:19,599 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.543334122661615 [2022-01-19 07:42:19,599 INFO L72 ComplementDD]: Start complementDD. Operand 41 states and 4589 transitions. [2022-01-19 07:42:19,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 4589 transitions. [2022-01-19 07:42:19,600 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:42:19,600 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 41 states and 4589 transitions. [2022-01-19 07:42:19,605 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 42 states, 41 states have (on average 111.92682926829268) internal successors, (4589), 41 states have internal predecessors, (4589), 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 07:42:19,609 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 42 states, 42 states have (on average 206.0) internal successors, (8652), 42 states have internal predecessors, (8652), 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 07:42:19,610 INFO L81 ComplementDD]: Finished complementDD. Result has 42 states, 42 states have (on average 206.0) internal successors, (8652), 42 states have internal predecessors, (8652), 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 07:42:19,610 INFO L186 Difference]: Start difference. First operand has 492 places, 2811 transitions, 31205 flow. Second operand 41 states and 4589 transitions. [2022-01-19 07:42:19,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 526 places, 3568 transitions, 47548 flow [2022-01-19 07:42:26,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 495 places, 3568 transitions, 46759 flow, removed 350 selfloop flow, removed 31 redundant places. [2022-01-19 07:42:26,676 INFO L242 Difference]: Finished difference. Result has 516 places, 3301 transitions, 40143 flow [2022-01-19 07:42:26,678 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=30526, PETRI_DIFFERENCE_MINUEND_PLACES=455, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2811, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=448, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=41, PETRI_FLOW=40143, PETRI_PLACES=516, PETRI_TRANSITIONS=3301} [2022-01-19 07:42:26,678 INFO L334 CegarLoopForPetriNet]: 187 programPoint places, 329 predicate places. [2022-01-19 07:42:26,678 INFO L470 AbstractCegarLoop]: Abstraction has has 516 places, 3301 transitions, 40143 flow [2022-01-19 07:42:26,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 106.05) internal successors, (4242), 40 states have internal predecessors, (4242), 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 07:42:26,679 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:42:26,679 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:42:26,695 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-01-19 07:42:26,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 07:42:26,883 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-19 07:42:26,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:42:26,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1631033915, now seen corresponding path program 2 times [2022-01-19 07:42:26,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:42:26,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406380826] [2022-01-19 07:42:26,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:42:26,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:42:26,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:42:27,804 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:42:27,804 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:42:27,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406380826] [2022-01-19 07:42:27,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406380826] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 07:42:27,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [488064069] [2022-01-19 07:42:27,804 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-19 07:42:27,804 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 07:42:27,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 07:42:27,805 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 07:42:27,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-19 07:42:27,904 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-19 07:42:27,904 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 07:42:27,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 71 conjunts are in the unsatisfiable core [2022-01-19 07:42:27,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 07:42:27,954 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-19 07:42:28,126 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-19 07:42:28,126 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-19 07:42:28,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-19 07:42:28,842 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2022-01-19 07:42:28,931 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2022-01-19 07:42:28,995 INFO L353 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2022-01-19 07:42:28,995 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 10 [2022-01-19 07:42:29,212 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 07:42:29,212 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 07:42:29,603 INFO L353 Elim1Store]: treesize reduction 14, result has 22.2 percent of original size [2022-01-19 07:42:29,604 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 124 treesize of output 83 [2022-01-19 07:42:29,606 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 65 [2022-01-19 07:42:29,609 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 28 [2022-01-19 07:42:30,486 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-01-19 07:42:30,533 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-19 07:42:30,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [488064069] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 07:42:30,534 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 07:42:30,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 22, 20] total 65 [2022-01-19 07:42:30,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377720042] [2022-01-19 07:42:30,534 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 07:42:30,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2022-01-19 07:42:30,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:42:30,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2022-01-19 07:42:30,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=261, Invalid=3893, Unknown=6, NotChecked=0, Total=4160 [2022-01-19 07:42:30,538 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 206 [2022-01-19 07:42:30,540 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 516 places, 3301 transitions, 40143 flow. Second operand has 65 states, 65 states have (on average 97.43076923076923) internal successors, (6333), 65 states have internal predecessors, (6333), 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 07:42:30,541 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:42:30,541 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 206 [2022-01-19 07:42:30,541 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:43:52,762 INFO L129 PetriNetUnfolder]: 75395/152433 cut-off events. [2022-01-19 07:43:52,763 INFO L130 PetriNetUnfolder]: For 1891385/1898294 co-relation queries the response was YES. [2022-01-19 07:43:57,564 INFO L84 FinitePrefix]: Finished finitePrefix Result has 803788 conditions, 152433 events. 75395/152433 cut-off events. For 1891385/1898294 co-relation queries the response was YES. Maximal size of possible extension queue 5968. Compared 1813466 event pairs, 5359 based on Foata normal form. 3644/148092 useless extension candidates. Maximal degree in co-relation 803654. Up to 41335 conditions per place. [2022-01-19 07:43:58,603 INFO L132 encePairwiseOnDemand]: 166/206 looper letters, 2701 selfloop transitions, 2437 changer transitions 112/5336 dead transitions. [2022-01-19 07:43:58,603 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 608 places, 5336 transitions, 75777 flow [2022-01-19 07:43:58,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-01-19 07:43:58,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2022-01-19 07:43:58,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 9805 transitions. [2022-01-19 07:43:58,614 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5010219724067451 [2022-01-19 07:43:58,614 INFO L72 ComplementDD]: Start complementDD. Operand 95 states and 9805 transitions. [2022-01-19 07:43:58,614 INFO L73 IsDeterministic]: Start isDeterministic. Operand 95 states and 9805 transitions. [2022-01-19 07:43:58,617 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:43:58,617 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 95 states and 9805 transitions. [2022-01-19 07:43:58,629 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 96 states, 95 states have (on average 103.21052631578948) internal successors, (9805), 95 states have internal predecessors, (9805), 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 07:43:58,644 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 96 states, 96 states have (on average 206.0) internal successors, (19776), 96 states have internal predecessors, (19776), 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 07:43:58,645 INFO L81 ComplementDD]: Finished complementDD. Result has 96 states, 96 states have (on average 206.0) internal successors, (19776), 96 states have internal predecessors, (19776), 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 07:43:58,646 INFO L186 Difference]: Start difference. First operand has 516 places, 3301 transitions, 40143 flow. Second operand 95 states and 9805 transitions. [2022-01-19 07:43:58,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 608 places, 5336 transitions, 75777 flow [2022-01-19 07:44:17,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 592 places, 5336 transitions, 74725 flow, removed 494 selfloop flow, removed 16 redundant places. [2022-01-19 07:44:17,195 INFO L242 Difference]: Finished difference. Result has 639 places, 4457 transitions, 63151 flow [2022-01-19 07:44:17,197 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=36254, PETRI_DIFFERENCE_MINUEND_PLACES=498, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=3091, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1274, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1463, PETRI_DIFFERENCE_SUBTRAHEND_STATES=95, PETRI_FLOW=63151, PETRI_PLACES=639, PETRI_TRANSITIONS=4457} [2022-01-19 07:44:17,198 INFO L334 CegarLoopForPetriNet]: 187 programPoint places, 452 predicate places. [2022-01-19 07:44:17,198 INFO L470 AbstractCegarLoop]: Abstraction has has 639 places, 4457 transitions, 63151 flow [2022-01-19 07:44:17,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 65 states have (on average 97.43076923076923) internal successors, (6333), 65 states have internal predecessors, (6333), 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 07:44:17,199 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:44:17,199 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:44:17,216 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-01-19 07:44:17,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 07:44:17,417 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-19 07:44:17,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:44:17,417 INFO L85 PathProgramCache]: Analyzing trace with hash -2045773385, now seen corresponding path program 4 times [2022-01-19 07:44:17,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:44:17,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951941093] [2022-01-19 07:44:17,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:44:17,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:44:17,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:44:17,851 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-19 07:44:17,851 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:44:17,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951941093] [2022-01-19 07:44:17,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951941093] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 07:44:17,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [300477089] [2022-01-19 07:44:17,852 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-19 07:44:17,852 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 07:44:17,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 07:44:17,853 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 07:44:17,854 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-01-19 07:44:17,954 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-19 07:44:17,954 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 07:44:17,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 65 conjunts are in the unsatisfiable core [2022-01-19 07:44:17,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 07:44:18,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-19 07:44:18,942 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 25 [2022-01-19 07:44:19,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-19 07:44:19,049 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 25 [2022-01-19 07:44:19,121 INFO L353 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2022-01-19 07:44:19,121 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 15 [2022-01-19 07:44:19,407 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:44:19,407 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 07:44:19,869 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 242 treesize of output 162 [2022-01-19 07:44:19,872 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 162 treesize of output 138 [2022-01-19 07:44:19,876 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 126 [2022-01-19 07:44:21,092 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 07:44:21,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [300477089] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 07:44:21,092 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 07:44:21,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 28, 28] total 65 [2022-01-19 07:44:21,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111855393] [2022-01-19 07:44:21,092 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 07:44:21,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2022-01-19 07:44:21,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:44:21,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2022-01-19 07:44:21,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=338, Invalid=3816, Unknown=6, NotChecked=0, Total=4160 [2022-01-19 07:44:21,096 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 206 [2022-01-19 07:44:21,099 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 639 places, 4457 transitions, 63151 flow. Second operand has 65 states, 65 states have (on average 104.18461538461538) internal successors, (6772), 65 states have internal predecessors, (6772), 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 07:44:21,099 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:44:21,099 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 206 [2022-01-19 07:44:21,099 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand