/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/VMCAI2021_PN.epf -i ../../../trunk/examples/svcomp/pthread-divine/ring_1w1r-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-11 19:41:03,683 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 19:41:03,685 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 19:41:03,725 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 19:41:03,726 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 19:41:03,728 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 19:41:03,729 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 19:41:03,731 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 19:41:03,732 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 19:41:03,733 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 19:41:03,734 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 19:41:03,735 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 19:41:03,735 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 19:41:03,736 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 19:41:03,737 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 19:41:03,738 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 19:41:03,739 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 19:41:03,740 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 19:41:03,742 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 19:41:03,744 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 19:41:03,745 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 19:41:03,746 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 19:41:03,747 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 19:41:03,748 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 19:41:03,750 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-11 19:41:03,753 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 19:41:03,754 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 19:41:03,755 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 19:41:03,755 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 19:41:03,756 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 19:41:03,757 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 19:41:03,757 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 19:41:03,758 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 19:41:03,758 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 19:41:03,764 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 19:41:03,765 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 19:41:03,765 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/VMCAI2021_PN.epf [2020-10-11 19:41:03,809 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 19:41:03,810 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 19:41:03,811 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 19:41:03,813 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 19:41:03,813 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 19:41:03,814 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 19:41:03,814 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 19:41:03,814 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 19:41:03,814 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 19:41:03,814 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 19:41:03,815 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 19:41:03,815 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 19:41:03,815 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 19:41:03,815 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 19:41:03,815 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 19:41:03,816 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 19:41:03,816 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 19:41:03,817 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 19:41:03,817 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 19:41:03,817 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 19:41:03,818 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 19:41:03,818 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 19:41:03,818 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 19:41:03,818 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 19:41:03,819 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 19:41:03,819 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 19:41:03,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 19:41:03,819 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-10-11 19:41:03,819 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-11 19:41:03,820 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 19:41:04,116 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 19:41:04,126 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 19:41:04,131 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 19:41:04,132 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 19:41:04,133 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 19:41:04,134 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-divine/ring_1w1r-2.i [2020-10-11 19:41:04,190 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab348a87e/4fc4e0f582e44e358598a4e5d6730027/FLAGf9281abfc [2020-10-11 19:41:04,701 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 19:41:04,702 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-2.i [2020-10-11 19:41:04,718 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab348a87e/4fc4e0f582e44e358598a4e5d6730027/FLAGf9281abfc [2020-10-11 19:41:04,954 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab348a87e/4fc4e0f582e44e358598a4e5d6730027 [2020-10-11 19:41:04,962 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 19:41:04,963 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 19:41:04,964 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 19:41:04,965 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 19:41:04,968 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 19:41:04,969 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:41:04" (1/1) ... [2020-10-11 19:41:04,972 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1467314f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:41:04, skipping insertion in model container [2020-10-11 19:41:04,972 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:41:04" (1/1) ... [2020-10-11 19:41:04,978 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 19:41:05,028 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 19:41:05,170 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-10-11 19:41:05,535 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 19:41:05,548 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 19:41:05,572 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-10-11 19:41:05,617 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 19:41:05,721 INFO L208 MainTranslator]: Completed translation [2020-10-11 19:41:05,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:41:05 WrapperNode [2020-10-11 19:41:05,722 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 19:41:05,723 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 19:41:05,723 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 19:41:05,723 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 19:41:05,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:41:05" (1/1) ... [2020-10-11 19:41:05,754 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:41:05" (1/1) ... [2020-10-11 19:41:05,784 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 19:41:05,784 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 19:41:05,784 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 19:41:05,785 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 19:41:05,794 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:41:05" (1/1) ... [2020-10-11 19:41:05,794 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:41:05" (1/1) ... [2020-10-11 19:41:05,798 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:41:05" (1/1) ... [2020-10-11 19:41:05,798 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:41:05" (1/1) ... [2020-10-11 19:41:05,806 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:41:05" (1/1) ... [2020-10-11 19:41:05,810 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:41:05" (1/1) ... [2020-10-11 19:41:05,812 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:41:05" (1/1) ... [2020-10-11 19:41:05,815 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 19:41:05,816 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 19:41:05,816 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 19:41:05,816 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 19:41:05,817 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:41:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 19:41:05,891 INFO L130 BoogieDeclarations]: Found specification of procedure reader_fn [2020-10-11 19:41:05,891 INFO L138 BoogieDeclarations]: Found implementation of procedure reader_fn [2020-10-11 19:41:05,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 19:41:05,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 19:41:05,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-11 19:41:05,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 19:41:05,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 19:41:05,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 19:41:05,897 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-11 19:41:06,339 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 19:41:06,340 INFO L298 CfgBuilder]: Removed 19 assume(true) statements. [2020-10-11 19:41:06,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:41:06 BoogieIcfgContainer [2020-10-11 19:41:06,342 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 19:41:06,343 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 19:41:06,343 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 19:41:06,346 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 19:41:06,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 07:41:04" (1/3) ... [2020-10-11 19:41:06,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ddd975d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:41:06, skipping insertion in model container [2020-10-11 19:41:06,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:41:05" (2/3) ... [2020-10-11 19:41:06,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ddd975d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:41:06, skipping insertion in model container [2020-10-11 19:41:06,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:41:06" (3/3) ... [2020-10-11 19:41:06,350 INFO L111 eAbstractionObserver]: Analyzing ICFG ring_1w1r-2.i [2020-10-11 19:41:06,361 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 19:41:06,369 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-11 19:41:06,370 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 19:41:06,400 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,401 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,401 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,401 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,402 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,402 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,402 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,402 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,403 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,403 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,403 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,404 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,404 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,404 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,405 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,405 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,405 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,405 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,405 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,406 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,406 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,406 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,406 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,407 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,407 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,407 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,408 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,408 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,408 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,408 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,408 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,409 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,409 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,409 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,409 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,409 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,410 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,410 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,410 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,410 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,411 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,411 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,411 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,411 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,412 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,412 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,412 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,412 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,413 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,413 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,413 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,413 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,413 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,414 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,414 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,414 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,415 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,415 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,415 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,415 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,415 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,416 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,416 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,416 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,416 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,417 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,417 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,417 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,417 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,418 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,418 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,418 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,418 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,419 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,419 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,419 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,419 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,420 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,420 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,420 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,420 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,421 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,421 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,421 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,421 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,422 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,422 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,422 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,422 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,423 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,423 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,423 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,423 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,423 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,424 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,424 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,424 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,424 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,425 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,425 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,425 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,425 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,426 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,426 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,426 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,426 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,427 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,427 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,427 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,427 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,428 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,428 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,428 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,428 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,429 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,429 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,429 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,429 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,429 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,430 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,430 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,430 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,430 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,431 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,431 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,431 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,432 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,432 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,436 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,436 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,436 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,437 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,437 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,437 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,437 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,437 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,438 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,438 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,438 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,438 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,439 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,439 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,439 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,439 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,440 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,440 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,440 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,440 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,440 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,441 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,441 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,441 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,441 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,442 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,442 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,442 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,442 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 19:41:06,470 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-10-11 19:41:06,491 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 19:41:06,491 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-11 19:41:06,492 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 19:41:06,492 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 19:41:06,492 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 19:41:06,492 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 19:41:06,492 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 19:41:06,492 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 19:41:06,508 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 122 places, 128 transitions, 264 flow [2020-10-11 19:41:06,564 INFO L129 PetriNetUnfolder]: 10/127 cut-off events. [2020-10-11 19:41:06,564 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-11 19:41:06,572 INFO L80 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 127 events. 10/127 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 245 event pairs, 0 based on Foata normal form. 0/114 useless extension candidates. Maximal degree in co-relation 105. Up to 2 conditions per place. [2020-10-11 19:41:06,572 INFO L82 GeneralOperation]: Start removeDead. Operand has 122 places, 128 transitions, 264 flow [2020-10-11 19:41:06,580 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 113 places, 119 transitions, 241 flow [2020-10-11 19:41:06,590 INFO L129 PetriNetUnfolder]: 3/35 cut-off events. [2020-10-11 19:41:06,590 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 19:41:06,590 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 19:41:06,591 INFO L255 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] [2020-10-11 19:41:06,592 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-11 19:41:06,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 19:41:06,598 INFO L82 PathProgramCache]: Analyzing trace with hash -52512637, now seen corresponding path program 1 times [2020-10-11 19:41:06,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 19:41:06,609 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856151498] [2020-10-11 19:41:06,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 19:41:06,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 19:41:06,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 19:41:06,789 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856151498] [2020-10-11 19:41:06,790 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 19:41:06,791 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 19:41:06,791 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415812241] [2020-10-11 19:41:06,802 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-11 19:41:06,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 19:41:06,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-11 19:41:06,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-11 19:41:06,822 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 128 [2020-10-11 19:41:06,824 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 119 transitions, 241 flow. Second operand 2 states. [2020-10-11 19:41:06,824 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 19:41:06,824 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 128 [2020-10-11 19:41:06,826 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 19:41:06,863 INFO L129 PetriNetUnfolder]: 4/113 cut-off events. [2020-10-11 19:41:06,863 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 19:41:06,866 INFO L80 FinitePrefix]: Finished finitePrefix Result has 118 conditions, 113 events. 4/113 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 192 event pairs, 0 based on Foata normal form. 6/112 useless extension candidates. Maximal degree in co-relation 115. Up to 2 conditions per place. [2020-10-11 19:41:06,868 INFO L132 encePairwiseOnDemand]: 122/128 looper letters, 0 selfloop transitions, 0 changer transitions 0/113 dead transitions. [2020-10-11 19:41:06,868 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 113 transitions, 229 flow [2020-10-11 19:41:06,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-11 19:41:06,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-11 19:41:06,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 250 transitions. [2020-10-11 19:41:06,883 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9765625 [2020-10-11 19:41:06,884 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 250 transitions. [2020-10-11 19:41:06,884 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 250 transitions. [2020-10-11 19:41:06,886 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 19:41:06,889 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 250 transitions. [2020-10-11 19:41:06,892 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-10-11 19:41:06,898 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 3 states. [2020-10-11 19:41:06,899 INFO L81 ComplementDD]: Finished complementDD. Result 3 states. [2020-10-11 19:41:06,901 INFO L185 Difference]: Start difference. First operand has 113 places, 119 transitions, 241 flow. Second operand 2 states and 250 transitions. [2020-10-11 19:41:06,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 113 transitions, 229 flow [2020-10-11 19:41:06,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 113 transitions, 228 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-11 19:41:06,911 INFO L241 Difference]: Finished difference. Result has 113 places, 113 transitions, 228 flow [2020-10-11 19:41:06,914 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=228, PETRI_PLACES=113, PETRI_TRANSITIONS=113} [2020-10-11 19:41:06,915 INFO L341 CegarLoopForPetriNet]: 113 programPoint places, 0 predicate places. [2020-10-11 19:41:06,915 INFO L481 AbstractCegarLoop]: Abstraction has has 113 places, 113 transitions, 228 flow [2020-10-11 19:41:06,916 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-11 19:41:06,916 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 19:41:06,916 INFO L255 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] [2020-10-11 19:41:06,916 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 19:41:06,917 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-11 19:41:06,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 19:41:06,917 INFO L82 PathProgramCache]: Analyzing trace with hash -1627923238, now seen corresponding path program 1 times [2020-10-11 19:41:06,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 19:41:06,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855927110] [2020-10-11 19:41:06,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 19:41:06,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 19:41:07,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 19:41:07,040 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855927110] [2020-10-11 19:41:07,040 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 19:41:07,041 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 19:41:07,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158297331] [2020-10-11 19:41:07,044 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 19:41:07,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 19:41:07,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 19:41:07,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 19:41:07,082 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 128 [2020-10-11 19:41:07,082 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 113 transitions, 228 flow. Second operand 3 states. [2020-10-11 19:41:07,083 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 19:41:07,083 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 128 [2020-10-11 19:41:07,083 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 19:41:07,120 INFO L129 PetriNetUnfolder]: 5/152 cut-off events. [2020-10-11 19:41:07,120 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 19:41:07,122 INFO L80 FinitePrefix]: Finished finitePrefix Result has 162 conditions, 152 events. 5/152 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 145 event pairs, 0 based on Foata normal form. 1/145 useless extension candidates. Maximal degree in co-relation 159. Up to 5 conditions per place. [2020-10-11 19:41:07,123 INFO L132 encePairwiseOnDemand]: 125/128 looper letters, 3 selfloop transitions, 2 changer transitions 0/114 dead transitions. [2020-10-11 19:41:07,123 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 114 transitions, 240 flow [2020-10-11 19:41:07,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 19:41:07,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-11 19:41:07,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 360 transitions. [2020-10-11 19:41:07,128 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9375 [2020-10-11 19:41:07,128 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 360 transitions. [2020-10-11 19:41:07,128 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 360 transitions. [2020-10-11 19:41:07,129 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 19:41:07,129 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 360 transitions. [2020-10-11 19:41:07,131 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-11 19:41:07,133 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-11 19:41:07,133 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-11 19:41:07,133 INFO L185 Difference]: Start difference. First operand has 113 places, 113 transitions, 228 flow. Second operand 3 states and 360 transitions. [2020-10-11 19:41:07,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 114 transitions, 240 flow [2020-10-11 19:41:07,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 114 transitions, 240 flow, removed 0 selfloop flow, removed 0 redundant places. [2020-10-11 19:41:07,138 INFO L241 Difference]: Finished difference. Result has 116 places, 114 transitions, 240 flow [2020-10-11 19:41:07,138 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=240, PETRI_PLACES=116, PETRI_TRANSITIONS=114} [2020-10-11 19:41:07,139 INFO L341 CegarLoopForPetriNet]: 113 programPoint places, 3 predicate places. [2020-10-11 19:41:07,139 INFO L481 AbstractCegarLoop]: Abstraction has has 116 places, 114 transitions, 240 flow [2020-10-11 19:41:07,139 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 19:41:07,139 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 19:41:07,139 INFO L255 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] [2020-10-11 19:41:07,140 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 19:41:07,140 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-11 19:41:07,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 19:41:07,140 INFO L82 PathProgramCache]: Analyzing trace with hash 193122172, now seen corresponding path program 1 times [2020-10-11 19:41:07,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 19:41:07,141 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196521982] [2020-10-11 19:41:07,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 19:41:07,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 19:41:07,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 19:41:07,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196521982] [2020-10-11 19:41:07,724 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 19:41:07,724 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-11 19:41:07,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055058711] [2020-10-11 19:41:07,725 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-11 19:41:07,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 19:41:07,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-11 19:41:07,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2020-10-11 19:41:18,522 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 128 [2020-10-11 19:41:18,524 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 114 transitions, 240 flow. Second operand 18 states. [2020-10-11 19:41:18,524 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 19:41:18,524 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 128 [2020-10-11 19:41:18,524 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 19:41:19,415 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2020-10-11 19:41:19,556 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2020-10-11 19:41:19,710 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-10-11 19:41:19,844 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2020-10-11 19:41:19,986 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 75 [2020-10-11 19:41:20,533 INFO L129 PetriNetUnfolder]: 129/762 cut-off events. [2020-10-11 19:41:20,533 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-11 19:41:20,538 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1007 conditions, 762 events. 129/762 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 4062 event pairs, 31 based on Foata normal form. 3/713 useless extension candidates. Maximal degree in co-relation 1002. Up to 170 conditions per place. [2020-10-11 19:41:20,546 INFO L132 encePairwiseOnDemand]: 107/128 looper letters, 45 selfloop transitions, 34 changer transitions 0/155 dead transitions. [2020-10-11 19:41:20,546 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 155 transitions, 480 flow [2020-10-11 19:41:20,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-11 19:41:20,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-11 19:41:20,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1841 transitions. [2020-10-11 19:41:20,564 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.6537642045454546 [2020-10-11 19:41:20,564 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 1841 transitions. [2020-10-11 19:41:20,564 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 1841 transitions. [2020-10-11 19:41:20,566 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 19:41:20,566 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 1841 transitions. [2020-10-11 19:41:20,574 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 23 states. [2020-10-11 19:41:20,584 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 23 states. [2020-10-11 19:41:20,584 INFO L81 ComplementDD]: Finished complementDD. Result 23 states. [2020-10-11 19:41:20,584 INFO L185 Difference]: Start difference. First operand has 116 places, 114 transitions, 240 flow. Second operand 22 states and 1841 transitions. [2020-10-11 19:41:20,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 155 transitions, 480 flow [2020-10-11 19:41:20,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 155 transitions, 478 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-11 19:41:20,598 INFO L241 Difference]: Finished difference. Result has 146 places, 145 transitions, 445 flow [2020-10-11 19:41:20,599 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=445, PETRI_PLACES=146, PETRI_TRANSITIONS=145} [2020-10-11 19:41:20,599 INFO L341 CegarLoopForPetriNet]: 113 programPoint places, 33 predicate places. [2020-10-11 19:41:20,599 INFO L481 AbstractCegarLoop]: Abstraction has has 146 places, 145 transitions, 445 flow [2020-10-11 19:41:20,599 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-11 19:41:20,600 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 19:41:20,600 INFO L255 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] [2020-10-11 19:41:20,600 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 19:41:20,601 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-11 19:41:20,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 19:41:20,601 INFO L82 PathProgramCache]: Analyzing trace with hash 1658166095, now seen corresponding path program 1 times [2020-10-11 19:41:20,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 19:41:20,602 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105696030] [2020-10-11 19:41:20,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 19:41:20,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 19:41:21,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 19:41:21,669 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105696030] [2020-10-11 19:41:21,669 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 19:41:21,669 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2020-10-11 19:41:21,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110423302] [2020-10-11 19:41:21,670 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-11 19:41:21,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 19:41:21,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-11 19:41:21,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=581, Unknown=0, NotChecked=0, Total=650 [2020-10-11 19:41:48,522 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 128 [2020-10-11 19:41:48,524 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 145 transitions, 445 flow. Second operand 26 states. [2020-10-11 19:41:48,524 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 19:41:48,525 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 128 [2020-10-11 19:41:48,525 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 19:41:49,525 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 49 [2020-10-11 19:41:49,706 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 54 [2020-10-11 19:41:49,891 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 58 [2020-10-11 19:41:50,062 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 56 [2020-10-11 19:41:50,279 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 60 [2020-10-11 19:41:50,438 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 59 [2020-10-11 19:41:50,667 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2020-10-11 19:41:50,846 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 52 [2020-10-11 19:41:51,074 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 62 [2020-10-11 19:41:51,267 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 57 [2020-10-11 19:41:51,477 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 64 [2020-10-11 19:41:51,667 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 66 [2020-10-11 19:41:51,929 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2020-10-11 19:41:52,137 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 68 [2020-10-11 19:41:52,431 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 71 [2020-10-11 19:41:52,701 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 70 [2020-10-11 19:41:52,962 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 72 [2020-10-11 19:41:53,261 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 75 [2020-10-11 19:41:53,511 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 74 [2020-10-11 19:41:53,813 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 76 [2020-10-11 19:41:54,126 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 79 [2020-10-11 19:41:54,464 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 82 [2020-10-11 19:41:54,767 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 84 [2020-10-11 19:41:54,905 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2020-10-11 19:41:55,292 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 87 [2020-10-11 19:41:55,440 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2020-10-11 19:41:55,571 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 54 [2020-10-11 19:41:55,832 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 67 [2020-10-11 19:41:55,971 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2020-10-11 19:41:56,309 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2020-10-11 19:41:56,910 INFO L129 PetriNetUnfolder]: 638/2191 cut-off events. [2020-10-11 19:41:56,911 INFO L130 PetriNetUnfolder]: For 454/454 co-relation queries the response was YES. [2020-10-11 19:41:56,920 INFO L80 FinitePrefix]: Finished finitePrefix Result has 4179 conditions, 2191 events. 638/2191 cut-off events. For 454/454 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 13637 event pairs, 204 based on Foata normal form. 9/2111 useless extension candidates. Maximal degree in co-relation 4164. Up to 593 conditions per place. [2020-10-11 19:41:56,930 INFO L132 encePairwiseOnDemand]: 98/128 looper letters, 175 selfloop transitions, 104 changer transitions 0/346 dead transitions. [2020-10-11 19:41:56,930 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 346 transitions, 1559 flow [2020-10-11 19:41:56,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2020-10-11 19:41:56,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-11 19:41:56,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 3673 transitions. [2020-10-11 19:41:56,942 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.5978190104166666 [2020-10-11 19:41:56,942 INFO L72 ComplementDD]: Start complementDD. Operand 48 states and 3673 transitions. [2020-10-11 19:41:56,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 3673 transitions. [2020-10-11 19:41:56,946 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 19:41:56,946 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 48 states and 3673 transitions. [2020-10-11 19:41:56,953 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 49 states. [2020-10-11 19:41:56,963 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 49 states. [2020-10-11 19:41:56,963 INFO L81 ComplementDD]: Finished complementDD. Result 49 states. [2020-10-11 19:41:56,963 INFO L185 Difference]: Start difference. First operand has 146 places, 145 transitions, 445 flow. Second operand 48 states and 3673 transitions. [2020-10-11 19:41:56,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 346 transitions, 1559 flow [2020-10-11 19:41:56,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 346 transitions, 1548 flow, removed 0 selfloop flow, removed 6 redundant places. [2020-10-11 19:41:56,977 INFO L241 Difference]: Finished difference. Result has 214 places, 221 transitions, 1110 flow [2020-10-11 19:41:56,977 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=434, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=48, PETRI_FLOW=1110, PETRI_PLACES=214, PETRI_TRANSITIONS=221} [2020-10-11 19:41:56,978 INFO L341 CegarLoopForPetriNet]: 113 programPoint places, 101 predicate places. [2020-10-11 19:41:56,978 INFO L481 AbstractCegarLoop]: Abstraction has has 214 places, 221 transitions, 1110 flow [2020-10-11 19:41:56,978 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-11 19:41:56,978 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 19:41:56,978 INFO L255 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] [2020-10-11 19:41:56,979 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-11 19:41:56,979 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-11 19:41:56,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 19:41:56,979 INFO L82 PathProgramCache]: Analyzing trace with hash 355812879, now seen corresponding path program 2 times [2020-10-11 19:41:56,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 19:41:56,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351987138] [2020-10-11 19:41:56,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 19:41:57,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 19:41:57,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 19:41:57,874 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351987138] [2020-10-11 19:41:57,874 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 19:41:57,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2020-10-11 19:41:57,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853317333] [2020-10-11 19:41:57,875 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-11 19:41:57,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 19:41:57,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-11 19:41:57,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=545, Unknown=0, NotChecked=0, Total=600 [2020-10-11 19:42:26,998 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 128 [2020-10-11 19:42:26,999 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 221 transitions, 1110 flow. Second operand 25 states. [2020-10-11 19:42:26,999 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 19:42:26,999 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 128 [2020-10-11 19:42:27,000 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 19:42:28,100 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 51 [2020-10-11 19:42:28,305 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 55 [2020-10-11 19:42:28,604 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 59 [2020-10-11 19:42:29,155 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 61 [2020-10-11 19:42:29,433 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 65 [2020-10-11 19:42:29,910 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 69 [2020-10-11 19:42:30,181 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 74 [2020-10-11 19:42:30,484 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 74 [2020-10-11 19:42:30,739 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 67 [2020-10-11 19:42:31,033 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 77 [2020-10-11 19:42:31,316 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 69 [2020-10-11 19:42:31,588 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 73 [2020-10-11 19:42:31,883 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 72 [2020-10-11 19:42:32,211 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 62 [2020-10-11 19:42:32,584 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 78 [2020-10-11 19:42:32,935 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 67 [2020-10-11 19:42:33,633 INFO L129 PetriNetUnfolder]: 996/3444 cut-off events. [2020-10-11 19:42:33,633 INFO L130 PetriNetUnfolder]: For 5771/5771 co-relation queries the response was YES. [2020-10-11 19:42:33,650 INFO L80 FinitePrefix]: Finished finitePrefix Result has 9320 conditions, 3444 events. 996/3444 cut-off events. For 5771/5771 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 25135 event pairs, 233 based on Foata normal form. 9/3298 useless extension candidates. Maximal degree in co-relation 9278. Up to 936 conditions per place. [2020-10-11 19:42:33,666 INFO L132 encePairwiseOnDemand]: 98/128 looper letters, 331 selfloop transitions, 116 changer transitions 0/514 dead transitions. [2020-10-11 19:42:33,667 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 514 transitions, 4011 flow [2020-10-11 19:42:33,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-11 19:42:33,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-11 19:42:33,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 2592 transitions. [2020-10-11 19:42:33,675 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.6136363636363636 [2020-10-11 19:42:33,675 INFO L72 ComplementDD]: Start complementDD. Operand 33 states and 2592 transitions. [2020-10-11 19:42:33,675 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 2592 transitions. [2020-10-11 19:42:33,678 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 19:42:33,678 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 33 states and 2592 transitions. [2020-10-11 19:42:33,683 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 34 states. [2020-10-11 19:42:33,689 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 34 states. [2020-10-11 19:42:33,689 INFO L81 ComplementDD]: Finished complementDD. Result 34 states. [2020-10-11 19:42:33,690 INFO L185 Difference]: Start difference. First operand has 214 places, 221 transitions, 1110 flow. Second operand 33 states and 2592 transitions. [2020-10-11 19:42:33,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 514 transitions, 4011 flow [2020-10-11 19:42:33,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 514 transitions, 3718 flow, removed 4 selfloop flow, removed 15 redundant places. [2020-10-11 19:42:33,722 INFO L241 Difference]: Finished difference. Result has 253 places, 321 transitions, 2251 flow [2020-10-11 19:42:33,723 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=1019, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=2251, PETRI_PLACES=253, PETRI_TRANSITIONS=321} [2020-10-11 19:42:33,723 INFO L341 CegarLoopForPetriNet]: 113 programPoint places, 140 predicate places. [2020-10-11 19:42:33,723 INFO L481 AbstractCegarLoop]: Abstraction has has 253 places, 321 transitions, 2251 flow [2020-10-11 19:42:33,723 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-11 19:42:33,723 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 19:42:33,724 INFO L255 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] [2020-10-11 19:42:33,724 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-11 19:42:33,724 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-11 19:42:33,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 19:42:33,725 INFO L82 PathProgramCache]: Analyzing trace with hash -1617213981, now seen corresponding path program 3 times [2020-10-11 19:42:33,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 19:42:33,725 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021889400] [2020-10-11 19:42:33,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 19:42:33,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 19:42:34,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 19:42:34,556 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021889400] [2020-10-11 19:42:34,556 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 19:42:34,557 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2020-10-11 19:42:34,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117441239] [2020-10-11 19:42:34,557 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-11 19:42:34,557 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 19:42:34,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-11 19:42:34,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2020-10-11 19:43:03,508 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 128 [2020-10-11 19:43:03,510 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 321 transitions, 2251 flow. Second operand 25 states. [2020-10-11 19:43:03,510 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 19:43:03,510 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 128 [2020-10-11 19:43:03,510 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 19:43:04,696 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 53 [2020-10-11 19:43:05,058 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 57 [2020-10-11 19:43:05,263 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 59 [2020-10-11 19:43:05,486 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 61 [2020-10-11 19:43:05,683 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 63 [2020-10-11 19:43:05,964 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 64 [2020-10-11 19:43:06,176 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 65 [2020-10-11 19:43:06,437 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 60 [2020-10-11 19:43:06,660 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 68 [2020-10-11 19:43:06,934 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2020-10-11 19:43:07,202 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 69 [2020-10-11 19:43:07,424 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 65 [2020-10-11 19:43:07,748 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 72 [2020-10-11 19:43:08,016 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 72 [2020-10-11 19:43:08,325 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 74 [2020-10-11 19:43:08,666 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 77 [2020-10-11 19:43:09,102 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 74 [2020-10-11 19:43:09,403 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 76 [2020-10-11 19:43:09,815 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 79 [2020-10-11 19:43:10,773 INFO L129 PetriNetUnfolder]: 1362/4480 cut-off events. [2020-10-11 19:43:10,773 INFO L130 PetriNetUnfolder]: For 16557/16564 co-relation queries the response was YES. [2020-10-11 19:43:10,798 INFO L80 FinitePrefix]: Finished finitePrefix Result has 15289 conditions, 4480 events. 1362/4480 cut-off events. For 16557/16564 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 35302 event pairs, 319 based on Foata normal form. 14/4301 useless extension candidates. Maximal degree in co-relation 15225. Up to 1322 conditions per place. [2020-10-11 19:43:10,818 INFO L132 encePairwiseOnDemand]: 99/128 looper letters, 352 selfloop transitions, 150 changer transitions 0/569 dead transitions. [2020-10-11 19:43:10,818 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 569 transitions, 5408 flow [2020-10-11 19:43:10,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-11 19:43:10,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-11 19:43:10,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 2808 transitions. [2020-10-11 19:43:10,823 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.609375 [2020-10-11 19:43:10,823 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 2808 transitions. [2020-10-11 19:43:10,823 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 2808 transitions. [2020-10-11 19:43:10,824 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 19:43:10,825 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 2808 transitions. [2020-10-11 19:43:10,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 37 states. [2020-10-11 19:43:10,833 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 37 states. [2020-10-11 19:43:10,833 INFO L81 ComplementDD]: Finished complementDD. Result 37 states. [2020-10-11 19:43:10,833 INFO L185 Difference]: Start difference. First operand has 253 places, 321 transitions, 2251 flow. Second operand 36 states and 2808 transitions. [2020-10-11 19:43:10,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 569 transitions, 5408 flow [2020-10-11 19:43:10,908 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 569 transitions, 5230 flow, removed 63 selfloop flow, removed 9 redundant places. [2020-10-11 19:43:10,919 INFO L241 Difference]: Finished difference. Result has 303 places, 437 transitions, 3854 flow [2020-10-11 19:43:10,919 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=2093, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=3854, PETRI_PLACES=303, PETRI_TRANSITIONS=437} [2020-10-11 19:43:10,920 INFO L341 CegarLoopForPetriNet]: 113 programPoint places, 190 predicate places. [2020-10-11 19:43:10,920 INFO L481 AbstractCegarLoop]: Abstraction has has 303 places, 437 transitions, 3854 flow [2020-10-11 19:43:10,920 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-11 19:43:10,920 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 19:43:10,920 INFO L255 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] [2020-10-11 19:43:10,921 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-11 19:43:10,921 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-11 19:43:10,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 19:43:10,921 INFO L82 PathProgramCache]: Analyzing trace with hash -289348593, now seen corresponding path program 4 times [2020-10-11 19:43:10,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 19:43:10,922 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119399370] [2020-10-11 19:43:10,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 19:43:10,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 19:43:12,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 19:43:12,060 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119399370] [2020-10-11 19:43:12,061 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 19:43:12,061 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2020-10-11 19:43:12,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635966451] [2020-10-11 19:43:12,062 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-11 19:43:12,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 19:43:12,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-11 19:43:12,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2020-10-11 19:43:40,842 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 128 [2020-10-11 19:43:40,844 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 437 transitions, 3854 flow. Second operand 26 states. [2020-10-11 19:43:40,844 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 19:43:40,844 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 128 [2020-10-11 19:43:40,844 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 19:43:41,868 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 47 [2020-10-11 19:43:42,080 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 51 [2020-10-11 19:43:42,339 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 55 [2020-10-11 19:43:42,887 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 61 [2020-10-11 19:43:43,175 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 65 [2020-10-11 19:43:43,784 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 69 [2020-10-11 19:43:44,156 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 73 [2020-10-11 19:43:44,473 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 78 [2020-10-11 19:43:44,809 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 80 [2020-10-11 19:43:45,391 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 83 [2020-10-11 19:43:46,007 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 79 [2020-10-11 19:43:46,759 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 84 [2020-10-11 19:43:47,965 INFO L129 PetriNetUnfolder]: 1678/5720 cut-off events. [2020-10-11 19:43:47,965 INFO L130 PetriNetUnfolder]: For 38819/38827 co-relation queries the response was YES. [2020-10-11 19:43:48,026 INFO L80 FinitePrefix]: Finished finitePrefix Result has 22720 conditions, 5720 events. 1678/5720 cut-off events. For 38819/38827 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 48824 event pairs, 458 based on Foata normal form. 13/5453 useless extension candidates. Maximal degree in co-relation 22632. Up to 1632 conditions per place. [2020-10-11 19:43:48,052 INFO L132 encePairwiseOnDemand]: 98/128 looper letters, 487 selfloop transitions, 145 changer transitions 0/699 dead transitions. [2020-10-11 19:43:48,052 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 338 places, 699 transitions, 8024 flow [2020-10-11 19:43:48,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-11 19:43:48,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-11 19:43:48,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 2815 transitions. [2020-10-11 19:43:48,058 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.6108940972222222 [2020-10-11 19:43:48,058 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 2815 transitions. [2020-10-11 19:43:48,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 2815 transitions. [2020-10-11 19:43:48,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 19:43:48,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 2815 transitions. [2020-10-11 19:43:48,062 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 37 states. [2020-10-11 19:43:48,067 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 37 states. [2020-10-11 19:43:48,068 INFO L81 ComplementDD]: Finished complementDD. Result 37 states. [2020-10-11 19:43:48,068 INFO L185 Difference]: Start difference. First operand has 303 places, 437 transitions, 3854 flow. Second operand 36 states and 2815 transitions. [2020-10-11 19:43:48,068 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 338 places, 699 transitions, 8024 flow [2020-10-11 19:43:48,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 699 transitions, 7629 flow, removed 181 selfloop flow, removed 8 redundant places. [2020-10-11 19:43:48,286 INFO L241 Difference]: Finished difference. Result has 355 places, 522 transitions, 5147 flow [2020-10-11 19:43:48,287 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=3471, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=437, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=335, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=5147, PETRI_PLACES=355, PETRI_TRANSITIONS=522} [2020-10-11 19:43:48,288 INFO L341 CegarLoopForPetriNet]: 113 programPoint places, 242 predicate places. [2020-10-11 19:43:48,288 INFO L481 AbstractCegarLoop]: Abstraction has has 355 places, 522 transitions, 5147 flow [2020-10-11 19:43:48,288 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-11 19:43:48,288 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 19:43:48,288 INFO L255 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] [2020-10-11 19:43:48,288 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-11 19:43:48,288 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-11 19:43:48,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 19:43:48,289 INFO L82 PathProgramCache]: Analyzing trace with hash 690605039, now seen corresponding path program 5 times [2020-10-11 19:43:48,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 19:43:48,291 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367229800] [2020-10-11 19:43:48,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 19:43:48,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 19:43:49,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 19:43:49,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367229800] [2020-10-11 19:43:49,403 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 19:43:49,403 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2020-10-11 19:43:49,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75108413] [2020-10-11 19:43:49,404 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-11 19:43:49,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 19:43:49,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-11 19:43:49,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=585, Unknown=0, NotChecked=0, Total=650 [2020-10-11 19:44:10,069 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 128 [2020-10-11 19:44:10,071 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 355 places, 522 transitions, 5147 flow. Second operand 26 states. [2020-10-11 19:44:10,071 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 19:44:10,071 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 128 [2020-10-11 19:44:10,071 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 19:44:11,097 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 49 [2020-10-11 19:44:11,369 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 53 [2020-10-11 19:44:11,580 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 58 [2020-10-11 19:44:11,800 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 60 [2020-10-11 19:44:12,047 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2020-10-11 19:44:12,263 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 62 [2020-10-11 19:44:12,460 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 56 [2020-10-11 19:44:12,698 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 64 [2020-10-11 19:44:12,918 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 66 [2020-10-11 19:44:13,211 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2020-10-11 19:44:13,439 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 68 [2020-10-11 19:44:13,698 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 61 [2020-10-11 19:44:14,022 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 71 [2020-10-11 19:44:14,443 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 70 [2020-10-11 19:44:14,746 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 72 [2020-10-11 19:44:15,086 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 75 [2020-10-11 19:44:15,361 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 74 [2020-10-11 19:44:15,710 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 76 [2020-10-11 19:44:16,064 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 79 [2020-10-11 19:44:16,537 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 82 [2020-10-11 19:44:16,874 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 84 [2020-10-11 19:44:17,054 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-10-11 19:44:17,482 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 87 [2020-10-11 19:44:17,662 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-10-11 19:44:17,815 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2020-10-11 19:44:18,134 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 71 [2020-10-11 19:44:18,472 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2020-10-11 19:44:18,835 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2020-10-11 19:44:19,991 INFO L129 PetriNetUnfolder]: 1971/6393 cut-off events. [2020-10-11 19:44:19,991 INFO L130 PetriNetUnfolder]: For 64184/64191 co-relation queries the response was YES. [2020-10-11 19:44:20,055 INFO L80 FinitePrefix]: Finished finitePrefix Result has 29441 conditions, 6393 events. 1971/6393 cut-off events. For 64184/64191 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 54972 event pairs, 617 based on Foata normal form. 11/6110 useless extension candidates. Maximal degree in co-relation 29328. Up to 2006 conditions per place. [2020-10-11 19:44:20,085 INFO L132 encePairwiseOnDemand]: 98/128 looper letters, 524 selfloop transitions, 175 changer transitions 0/766 dead transitions. [2020-10-11 19:44:20,086 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 766 transitions, 9767 flow [2020-10-11 19:44:20,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-10-11 19:44:20,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-11 19:44:20,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 3545 transitions. [2020-10-11 19:44:20,091 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.6020720108695652 [2020-10-11 19:44:20,091 INFO L72 ComplementDD]: Start complementDD. Operand 46 states and 3545 transitions. [2020-10-11 19:44:20,092 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 3545 transitions. [2020-10-11 19:44:20,093 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 19:44:20,093 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 46 states and 3545 transitions. [2020-10-11 19:44:20,097 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 47 states. [2020-10-11 19:44:20,103 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 47 states. [2020-10-11 19:44:20,103 INFO L81 ComplementDD]: Finished complementDD. Result 47 states. [2020-10-11 19:44:20,103 INFO L185 Difference]: Start difference. First operand has 355 places, 522 transitions, 5147 flow. Second operand 46 states and 3545 transitions. [2020-10-11 19:44:20,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 766 transitions, 9767 flow [2020-10-11 19:44:20,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 393 places, 766 transitions, 9274 flow, removed 228 selfloop flow, removed 7 redundant places. [2020-10-11 19:44:20,407 INFO L241 Difference]: Finished difference. Result has 426 places, 622 transitions, 6867 flow [2020-10-11 19:44:20,408 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=4666, PETRI_DIFFERENCE_MINUEND_PLACES=348, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=522, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=406, PETRI_DIFFERENCE_SUBTRAHEND_STATES=46, PETRI_FLOW=6867, PETRI_PLACES=426, PETRI_TRANSITIONS=622} [2020-10-11 19:44:20,408 INFO L341 CegarLoopForPetriNet]: 113 programPoint places, 313 predicate places. [2020-10-11 19:44:20,409 INFO L481 AbstractCegarLoop]: Abstraction has has 426 places, 622 transitions, 6867 flow [2020-10-11 19:44:20,409 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-11 19:44:20,409 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 19:44:20,409 INFO L255 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] [2020-10-11 19:44:20,409 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-11 19:44:20,409 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-11 19:44:20,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 19:44:20,410 INFO L82 PathProgramCache]: Analyzing trace with hash -1074686901, now seen corresponding path program 6 times [2020-10-11 19:44:20,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 19:44:20,410 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652995729] [2020-10-11 19:44:20,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 19:44:20,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 19:44:21,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 19:44:21,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652995729] [2020-10-11 19:44:21,554 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 19:44:21,554 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2020-10-11 19:44:21,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833387607] [2020-10-11 19:44:21,554 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-11 19:44:21,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 19:44:21,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-11 19:44:21,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2020-10-11 19:44:59,083 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 128 [2020-10-11 19:44:59,084 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 426 places, 622 transitions, 6867 flow. Second operand 26 states. [2020-10-11 19:44:59,085 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 19:44:59,085 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 128 [2020-10-11 19:44:59,085 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 19:45:00,204 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 49 [2020-10-11 19:45:00,582 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 53 [2020-10-11 19:45:00,839 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 57 [2020-10-11 19:45:01,193 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 61 [2020-10-11 19:45:01,688 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 65 [2020-10-11 19:45:02,015 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 70 [2020-10-11 19:45:02,357 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 69 [2020-10-11 19:45:02,623 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 72 [2020-10-11 19:45:02,968 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 74 [2020-10-11 19:45:03,269 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 75 [2020-10-11 19:45:03,617 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 76 [2020-10-11 19:45:03,884 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 68 [2020-10-11 19:45:04,243 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 80 [2020-10-11 19:45:04,588 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 72 [2020-10-11 19:45:04,877 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 73 [2020-10-11 19:45:05,487 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 78 [2020-10-11 19:45:05,796 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 75 [2020-10-11 19:45:06,171 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 80 [2020-10-11 19:45:06,588 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 80 [2020-10-11 19:45:07,195 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 83 [2020-10-11 19:45:07,883 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 79 [2020-10-11 19:45:08,637 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 84 [2020-10-11 19:45:11,633 INFO L129 PetriNetUnfolder]: 2287/7457 cut-off events. [2020-10-11 19:45:11,633 INFO L130 PetriNetUnfolder]: For 111930/111940 co-relation queries the response was YES. [2020-10-11 19:45:11,719 INFO L80 FinitePrefix]: Finished finitePrefix Result has 38695 conditions, 7457 events. 2287/7457 cut-off events. For 111930/111940 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 67552 event pairs, 573 based on Foata normal form. 10/7139 useless extension candidates. Maximal degree in co-relation 38549. Up to 2342 conditions per place. [2020-10-11 19:45:11,752 INFO L132 encePairwiseOnDemand]: 98/128 looper letters, 636 selfloop transitions, 200 changer transitions 0/903 dead transitions. [2020-10-11 19:45:11,752 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 471 places, 903 transitions, 12868 flow [2020-10-11 19:45:11,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-10-11 19:45:11,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-11 19:45:11,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 3560 transitions. [2020-10-11 19:45:11,758 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.6046195652173914 [2020-10-11 19:45:11,758 INFO L72 ComplementDD]: Start complementDD. Operand 46 states and 3560 transitions. [2020-10-11 19:45:11,758 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 3560 transitions. [2020-10-11 19:45:11,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 19:45:11,760 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 46 states and 3560 transitions. [2020-10-11 19:45:11,764 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 47 states. [2020-10-11 19:45:11,770 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 47 states. [2020-10-11 19:45:11,770 INFO L81 ComplementDD]: Finished complementDD. Result 47 states. [2020-10-11 19:45:11,770 INFO L185 Difference]: Start difference. First operand has 426 places, 622 transitions, 6867 flow. Second operand 46 states and 3560 transitions. [2020-10-11 19:45:11,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 471 places, 903 transitions, 12868 flow [2020-10-11 19:45:12,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 465 places, 903 transitions, 12069 flow, removed 392 selfloop flow, removed 6 redundant places. [2020-10-11 19:45:12,242 INFO L241 Difference]: Finished difference. Result has 501 places, 730 transitions, 8869 flow [2020-10-11 19:45:12,243 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=6069, PETRI_DIFFERENCE_MINUEND_PLACES=420, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=622, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=106, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=489, PETRI_DIFFERENCE_SUBTRAHEND_STATES=46, PETRI_FLOW=8869, PETRI_PLACES=501, PETRI_TRANSITIONS=730} [2020-10-11 19:45:12,243 INFO L341 CegarLoopForPetriNet]: 113 programPoint places, 388 predicate places. [2020-10-11 19:45:12,243 INFO L481 AbstractCegarLoop]: Abstraction has has 501 places, 730 transitions, 8869 flow [2020-10-11 19:45:12,244 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-11 19:45:12,244 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 19:45:12,244 INFO L255 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] [2020-10-11 19:45:12,244 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-11 19:45:12,244 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-11 19:45:12,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 19:45:12,244 INFO L82 PathProgramCache]: Analyzing trace with hash -285194211, now seen corresponding path program 7 times [2020-10-11 19:45:12,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 19:45:12,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432711222] [2020-10-11 19:45:12,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 19:45:12,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 19:45:13,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 19:45:13,418 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432711222] [2020-10-11 19:45:13,418 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 19:45:13,418 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2020-10-11 19:45:13,418 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848403812] [2020-10-11 19:45:13,418 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-11 19:45:13,418 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 19:45:13,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-11 19:45:13,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=588, Unknown=0, NotChecked=0, Total=650 [2020-10-11 19:45:49,211 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 128 [2020-10-11 19:45:49,213 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 501 places, 730 transitions, 8869 flow. Second operand 26 states. [2020-10-11 19:45:49,213 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 19:45:49,213 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 128 [2020-10-11 19:45:49,213 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 19:45:50,389 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 47 [2020-10-11 19:45:50,573 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 52 [2020-10-11 19:45:50,748 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 51 [2020-10-11 19:45:50,957 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 56 [2020-10-11 19:45:51,132 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 54 [2020-10-11 19:45:51,368 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 58 [2020-10-11 19:45:51,558 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 57 [2020-10-11 19:45:51,775 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 50 [2020-10-11 19:45:51,993 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 61 [2020-10-11 19:45:52,197 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 55 [2020-10-11 19:45:52,414 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 54 [2020-10-11 19:45:52,642 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2020-10-11 19:45:52,951 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 61 [2020-10-11 19:45:53,166 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 55 [2020-10-11 19:45:53,414 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 62 [2020-10-11 19:45:53,659 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 66 [2020-10-11 19:45:53,946 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 59 [2020-10-11 19:45:54,225 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2020-10-11 19:45:54,484 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 68 [2020-10-11 19:45:54,806 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2020-10-11 19:45:55,017 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 58 [2020-10-11 19:45:55,295 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 71 [2020-10-11 19:45:55,657 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 70 [2020-10-11 19:45:55,910 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 64 [2020-10-11 19:45:56,306 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 72 [2020-10-11 19:45:56,599 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 69 [2020-10-11 19:45:56,838 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 63 [2020-10-11 19:45:57,254 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 75 [2020-10-11 19:45:57,555 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 74 [2020-10-11 19:45:57,835 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 69 [2020-10-11 19:45:58,200 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 68 [2020-10-11 19:45:58,523 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 76 [2020-10-11 19:45:59,078 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 80 [2020-10-11 19:45:59,444 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 73 [2020-10-11 19:45:59,755 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 72 [2020-10-11 19:46:00,255 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 79 [2020-10-11 19:46:00,606 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 73 [2020-10-11 19:46:00,993 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 78 [2020-10-11 19:46:01,418 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 79 [2020-10-11 19:46:02,063 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 82 [2020-10-11 19:46:02,758 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 78 [2020-10-11 19:46:03,817 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 83 [2020-10-11 19:46:05,816 INFO L129 PetriNetUnfolder]: 2487/7969 cut-off events. [2020-10-11 19:46:05,817 INFO L130 PetriNetUnfolder]: For 192006/192047 co-relation queries the response was YES. [2020-10-11 19:46:05,942 INFO L80 FinitePrefix]: Finished finitePrefix Result has 48075 conditions, 7969 events. 2487/7969 cut-off events. For 192006/192047 co-relation queries the response was YES. Maximal size of possible extension queue 188. Compared 73194 event pairs, 405 based on Foata normal form. 9/7673 useless extension candidates. Maximal degree in co-relation 47893. Up to 1651 conditions per place. [2020-10-11 19:46:05,980 INFO L132 encePairwiseOnDemand]: 98/128 looper letters, 545 selfloop transitions, 484 changer transitions 0/1096 dead transitions. [2020-10-11 19:46:05,981 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 566 places, 1096 transitions, 17024 flow [2020-10-11 19:46:05,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2020-10-11 19:46:05,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-11 19:46:05,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 5017 transitions. [2020-10-11 19:46:05,988 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.5938683712121212 [2020-10-11 19:46:05,988 INFO L72 ComplementDD]: Start complementDD. Operand 66 states and 5017 transitions. [2020-10-11 19:46:05,988 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 5017 transitions. [2020-10-11 19:46:05,989 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 19:46:05,989 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 66 states and 5017 transitions. [2020-10-11 19:46:05,995 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 67 states. [2020-10-11 19:46:06,003 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 67 states. [2020-10-11 19:46:06,003 INFO L81 ComplementDD]: Finished complementDD. Result 67 states. [2020-10-11 19:46:06,003 INFO L185 Difference]: Start difference. First operand has 501 places, 730 transitions, 8869 flow. Second operand 66 states and 5017 transitions. [2020-10-11 19:46:06,003 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 566 places, 1096 transitions, 17024 flow [2020-10-11 19:46:06,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 560 places, 1096 transitions, 15584 flow, removed 710 selfloop flow, removed 6 redundant places. [2020-10-11 19:46:06,736 INFO L241 Difference]: Finished difference. Result has 601 places, 861 transitions, 11993 flow [2020-10-11 19:46:06,737 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=7785, PETRI_DIFFERENCE_MINUEND_PLACES=495, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=730, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=364, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=66, PETRI_FLOW=11993, PETRI_PLACES=601, PETRI_TRANSITIONS=861} [2020-10-11 19:46:06,738 INFO L341 CegarLoopForPetriNet]: 113 programPoint places, 488 predicate places. [2020-10-11 19:46:06,738 INFO L481 AbstractCegarLoop]: Abstraction has has 601 places, 861 transitions, 11993 flow [2020-10-11 19:46:06,738 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-11 19:46:06,738 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 19:46:06,738 INFO L255 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] [2020-10-11 19:46:06,738 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-11 19:46:06,739 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-11 19:46:06,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 19:46:06,739 INFO L82 PathProgramCache]: Analyzing trace with hash 838974151, now seen corresponding path program 8 times [2020-10-11 19:46:06,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 19:46:06,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483786230] [2020-10-11 19:46:06,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 19:46:06,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 19:46:07,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 19:46:07,851 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483786230] [2020-10-11 19:46:07,851 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 19:46:07,851 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2020-10-11 19:46:07,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26414094] [2020-10-11 19:46:07,852 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-11 19:46:07,852 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 19:46:07,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-11 19:46:07,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2020-10-11 19:46:49,667 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 128 [2020-10-11 19:46:49,668 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 601 places, 861 transitions, 11993 flow. Second operand 26 states. [2020-10-11 19:46:49,668 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 19:46:49,669 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 128 [2020-10-11 19:46:49,669 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 19:46:50,799 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 47 [2020-10-11 19:46:51,001 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 53 [2020-10-11 19:46:51,312 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 57 [2020-10-11 19:46:51,659 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 61 [2020-10-11 19:46:52,357 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 67 [2020-10-11 19:46:52,732 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 71 [2020-10-11 19:46:53,669 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 75 [2020-10-11 19:46:54,037 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 80 [2020-10-11 19:46:54,445 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 78 [2020-10-11 19:46:54,982 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 81 [2020-10-11 19:46:56,137 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 77 [2020-10-11 19:46:57,068 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 82 [2020-10-11 19:47:01,753 INFO L129 PetriNetUnfolder]: 2775/9429 cut-off events. [2020-10-11 19:47:01,753 INFO L130 PetriNetUnfolder]: For 323170/323215 co-relation queries the response was YES. [2020-10-11 19:47:01,917 INFO L80 FinitePrefix]: Finished finitePrefix Result has 60369 conditions, 9429 events. 2775/9429 cut-off events. For 323170/323215 co-relation queries the response was YES. Maximal size of possible extension queue 229. Compared 91853 event pairs, 593 based on Foata normal form. 20/8986 useless extension candidates. Maximal degree in co-relation 60146. Up to 2648 conditions per place. [2020-10-11 19:47:01,947 INFO L132 encePairwiseOnDemand]: 98/128 looper letters, 793 selfloop transitions, 293 changer transitions 0/1153 dead transitions. [2020-10-11 19:47:01,948 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 636 places, 1153 transitions, 19760 flow [2020-10-11 19:47:01,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-11 19:47:01,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-11 19:47:01,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 2807 transitions. [2020-10-11 19:47:01,954 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.6091579861111112 [2020-10-11 19:47:01,954 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 2807 transitions. [2020-10-11 19:47:01,954 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 2807 transitions. [2020-10-11 19:47:01,955 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 19:47:01,955 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 2807 transitions. [2020-10-11 19:47:01,958 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 37 states. [2020-10-11 19:47:01,963 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 37 states. [2020-10-11 19:47:01,964 INFO L81 ComplementDD]: Finished complementDD. Result 37 states. [2020-10-11 19:47:01,964 INFO L185 Difference]: Start difference. First operand has 601 places, 861 transitions, 11993 flow. Second operand 36 states and 2807 transitions. [2020-10-11 19:47:01,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 636 places, 1153 transitions, 19760 flow [2020-10-11 19:47:03,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 624 places, 1153 transitions, 17644 flow, removed 842 selfloop flow, removed 12 redundant places. [2020-10-11 19:47:03,160 INFO L241 Difference]: Finished difference. Result has 647 places, 942 transitions, 12815 flow [2020-10-11 19:47:03,161 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=10067, PETRI_DIFFERENCE_MINUEND_PLACES=589, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=861, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=225, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=607, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=12815, PETRI_PLACES=647, PETRI_TRANSITIONS=942} [2020-10-11 19:47:03,161 INFO L341 CegarLoopForPetriNet]: 113 programPoint places, 534 predicate places. [2020-10-11 19:47:03,161 INFO L481 AbstractCegarLoop]: Abstraction has has 647 places, 942 transitions, 12815 flow [2020-10-11 19:47:03,161 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-11 19:47:03,161 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 19:47:03,162 INFO L255 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] [2020-10-11 19:47:03,162 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-11 19:47:03,162 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-11 19:47:03,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 19:47:03,162 INFO L82 PathProgramCache]: Analyzing trace with hash 1058692751, now seen corresponding path program 9 times [2020-10-11 19:47:03,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 19:47:03,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108527133] [2020-10-11 19:47:03,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 19:47:03,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 19:47:04,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 19:47:04,390 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108527133] [2020-10-11 19:47:04,390 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 19:47:04,390 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2020-10-11 19:47:04,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839386159] [2020-10-11 19:47:04,390 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-11 19:47:04,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 19:47:04,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-11 19:47:04,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2020-10-11 19:47:45,419 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 128 [2020-10-11 19:47:45,421 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 647 places, 942 transitions, 12815 flow. Second operand 26 states. [2020-10-11 19:47:45,421 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 19:47:45,421 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 128 [2020-10-11 19:47:45,421 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 19:47:46,064 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 37 [2020-10-11 19:47:46,391 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 45 [2020-10-11 19:47:46,606 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 49 [2020-10-11 19:47:46,908 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 53 [2020-10-11 19:47:47,158 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 58 [2020-10-11 19:47:47,420 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 60 [2020-10-11 19:47:47,696 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2020-10-11 19:47:47,961 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 62 [2020-10-11 19:47:48,179 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 56 [2020-10-11 19:47:48,470 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 64 [2020-10-11 19:47:48,716 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 66 [2020-10-11 19:47:49,074 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2020-10-11 19:47:49,343 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 68 [2020-10-11 19:47:49,588 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 61 [2020-10-11 19:47:49,959 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 71 [2020-10-11 19:47:50,322 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 70 [2020-10-11 19:47:50,682 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 72 [2020-10-11 19:47:51,100 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 75 [2020-10-11 19:47:51,417 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 74 [2020-10-11 19:47:51,845 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 76 [2020-10-11 19:47:52,283 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 79 [2020-10-11 19:47:52,965 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 82 [2020-10-11 19:47:53,375 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 84 [2020-10-11 19:47:53,574 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-10-11 19:47:54,113 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 87 [2020-10-11 19:47:54,330 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-10-11 19:47:54,510 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2020-10-11 19:47:54,908 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 71 [2020-10-11 19:47:55,275 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2020-10-11 19:47:55,734 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2020-10-11 19:47:58,312 INFO L129 PetriNetUnfolder]: 3081/10045 cut-off events. [2020-10-11 19:47:58,313 INFO L130 PetriNetUnfolder]: For 419517/419609 co-relation queries the response was YES. [2020-10-11 19:47:58,549 INFO L80 FinitePrefix]: Finished finitePrefix Result has 70694 conditions, 10045 events. 3081/10045 cut-off events. For 419517/419609 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 97603 event pairs, 689 based on Foata normal form. 27/9613 useless extension candidates. Maximal degree in co-relation 70448. Up to 3032 conditions per place. [2020-10-11 19:47:58,588 INFO L132 encePairwiseOnDemand]: 98/128 looper letters, 851 selfloop transitions, 305 changer transitions 0/1223 dead transitions. [2020-10-11 19:47:58,588 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 692 places, 1223 transitions, 21870 flow [2020-10-11 19:47:58,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-10-11 19:47:58,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-11 19:47:58,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 3544 transitions. [2020-10-11 19:47:58,593 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.6019021739130435 [2020-10-11 19:47:58,594 INFO L72 ComplementDD]: Start complementDD. Operand 46 states and 3544 transitions. [2020-10-11 19:47:58,594 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 3544 transitions. [2020-10-11 19:47:58,595 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 19:47:58,595 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 46 states and 3544 transitions. [2020-10-11 19:47:58,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 47 states. [2020-10-11 19:47:58,604 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 47 states. [2020-10-11 19:47:58,604 INFO L81 ComplementDD]: Finished complementDD. Result 47 states. [2020-10-11 19:47:58,605 INFO L185 Difference]: Start difference. First operand has 647 places, 942 transitions, 12815 flow. Second operand 46 states and 3544 transitions. [2020-10-11 19:47:58,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 692 places, 1223 transitions, 21870 flow [2020-10-11 19:48:00,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 683 places, 1223 transitions, 19524 flow, removed 1104 selfloop flow, removed 9 redundant places. [2020-10-11 19:48:00,728 INFO L241 Difference]: Finished difference. Result has 716 places, 1046 transitions, 15407 flow [2020-10-11 19:48:00,729 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=11986, PETRI_DIFFERENCE_MINUEND_PLACES=638, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=942, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=210, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=700, PETRI_DIFFERENCE_SUBTRAHEND_STATES=46, PETRI_FLOW=15407, PETRI_PLACES=716, PETRI_TRANSITIONS=1046} [2020-10-11 19:48:00,729 INFO L341 CegarLoopForPetriNet]: 113 programPoint places, 603 predicate places. [2020-10-11 19:48:00,729 INFO L481 AbstractCegarLoop]: Abstraction has has 716 places, 1046 transitions, 15407 flow [2020-10-11 19:48:00,730 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-11 19:48:00,730 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 19:48:00,730 INFO L255 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] [2020-10-11 19:48:00,730 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-11 19:48:00,730 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-11 19:48:00,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 19:48:00,730 INFO L82 PathProgramCache]: Analyzing trace with hash 200629039, now seen corresponding path program 10 times [2020-10-11 19:48:00,730 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 19:48:00,731 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182182887] [2020-10-11 19:48:00,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 19:48:00,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 19:48:02,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 19:48:02,018 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182182887] [2020-10-11 19:48:02,018 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 19:48:02,018 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2020-10-11 19:48:02,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318063425] [2020-10-11 19:48:02,019 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-11 19:48:02,019 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 19:48:02,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-11 19:48:02,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2020-10-11 19:48:47,865 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 128 [2020-10-11 19:48:47,867 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 716 places, 1046 transitions, 15407 flow. Second operand 26 states. [2020-10-11 19:48:47,867 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 19:48:47,867 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 128 [2020-10-11 19:48:47,867 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 19:48:48,897 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 43 [2020-10-11 19:48:49,123 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 47 [2020-10-11 19:48:49,344 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 53 [2020-10-11 19:48:49,699 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 57 [2020-10-11 19:48:50,075 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 61 [2020-10-11 19:48:50,412 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 65 [2020-10-11 19:48:51,217 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 69 [2020-10-11 19:48:52,489 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 73 [2020-10-11 19:48:52,925 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 78 [2020-10-11 19:48:53,533 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 76 [2020-10-11 19:48:54,265 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 79 [2020-10-11 19:48:55,406 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 75 [2020-10-11 19:48:56,479 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 80 [2020-10-11 19:49:00,828 INFO L129 PetriNetUnfolder]: 3522/11807 cut-off events. [2020-10-11 19:49:00,829 INFO L130 PetriNetUnfolder]: For 344857/344944 co-relation queries the response was YES. [2020-10-11 19:49:01,092 INFO L80 FinitePrefix]: Finished finitePrefix Result has 74963 conditions, 11807 events. 3522/11807 cut-off events. For 344857/344944 co-relation queries the response was YES. Maximal size of possible extension queue 277. Compared 118905 event pairs, 701 based on Foata normal form. 28/11274 useless extension candidates. Maximal degree in co-relation 74684. Up to 3697 conditions per place. [2020-10-11 19:49:01,149 INFO L132 encePairwiseOnDemand]: 98/128 looper letters, 1018 selfloop transitions, 366 changer transitions 0/1451 dead transitions. [2020-10-11 19:49:01,149 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 751 places, 1451 transitions, 26176 flow [2020-10-11 19:49:01,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-11 19:49:01,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-11 19:49:01,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 2817 transitions. [2020-10-11 19:49:01,154 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.611328125 [2020-10-11 19:49:01,154 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 2817 transitions. [2020-10-11 19:49:01,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 2817 transitions. [2020-10-11 19:49:01,155 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 19:49:01,155 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 2817 transitions. [2020-10-11 19:49:01,158 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 37 states. [2020-10-11 19:49:01,162 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 37 states. [2020-10-11 19:49:01,162 INFO L81 ComplementDD]: Finished complementDD. Result 37 states. [2020-10-11 19:49:01,162 INFO L185 Difference]: Start difference. First operand has 716 places, 1046 transitions, 15407 flow. Second operand 36 states and 2817 transitions. [2020-10-11 19:49:01,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 751 places, 1451 transitions, 26176 flow [2020-10-11 19:49:03,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 743 places, 1451 transitions, 24863 flow, removed 601 selfloop flow, removed 8 redundant places. [2020-10-11 19:49:03,153 INFO L241 Difference]: Finished difference. Result has 765 places, 1187 transitions, 18835 flow [2020-10-11 19:49:03,155 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=14328, PETRI_DIFFERENCE_MINUEND_PLACES=708, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1046, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=230, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=732, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=18835, PETRI_PLACES=765, PETRI_TRANSITIONS=1187} [2020-10-11 19:49:03,155 INFO L341 CegarLoopForPetriNet]: 113 programPoint places, 652 predicate places. [2020-10-11 19:49:03,155 INFO L481 AbstractCegarLoop]: Abstraction has has 765 places, 1187 transitions, 18835 flow [2020-10-11 19:49:03,155 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-11 19:49:03,155 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 19:49:03,155 INFO L255 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] [2020-10-11 19:49:03,156 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-11 19:49:03,156 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-11 19:49:03,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 19:49:03,156 INFO L82 PathProgramCache]: Analyzing trace with hash 541768647, now seen corresponding path program 11 times [2020-10-11 19:49:03,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 19:49:03,156 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237701472] [2020-10-11 19:49:03,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 19:49:03,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 19:49:04,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 19:49:04,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237701472] [2020-10-11 19:49:04,404 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 19:49:04,404 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2020-10-11 19:49:04,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145647106] [2020-10-11 19:49:04,405 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-11 19:49:04,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 19:49:04,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-11 19:49:04,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2020-10-11 19:49:48,289 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 128 [2020-10-11 19:49:48,291 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 765 places, 1187 transitions, 18835 flow. Second operand 25 states. [2020-10-11 19:49:48,291 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 19:49:48,291 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 128 [2020-10-11 19:49:48,291 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 19:49:49,183 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 41 [2020-10-11 19:49:49,357 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 45 [2020-10-11 19:49:49,658 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 49 [2020-10-11 19:49:50,075 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 53 [2020-10-11 19:49:50,352 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 57 [2020-10-11 19:49:50,643 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 59 [2020-10-11 19:49:50,917 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 57 [2020-10-11 19:49:51,180 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 62 [2020-10-11 19:49:51,460 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 59 [2020-10-11 19:49:51,726 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 56 [2020-10-11 19:49:52,033 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 61 [2020-10-11 19:49:52,294 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 63 [2020-10-11 19:49:52,705 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 64 [2020-10-11 19:49:52,988 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 65 [2020-10-11 19:49:53,271 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 61 [2020-10-11 19:49:53,642 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 60 [2020-10-11 19:49:53,937 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 68 [2020-10-11 19:49:54,370 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2020-10-11 19:49:54,806 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 69 [2020-10-11 19:49:55,140 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 72 [2020-10-11 19:49:55,430 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 65 [2020-10-11 19:49:55,917 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 72 [2020-10-11 19:49:56,436 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 74 [2020-10-11 19:49:56,945 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 77 [2020-10-11 19:49:57,890 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 74 [2020-10-11 19:49:58,380 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 76 [2020-10-11 19:49:59,033 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 79 [2020-10-11 19:50:03,438 INFO L129 PetriNetUnfolder]: 3683/12040 cut-off events. [2020-10-11 19:50:03,439 INFO L130 PetriNetUnfolder]: For 423558/423717 co-relation queries the response was YES. [2020-10-11 19:50:03,841 INFO L80 FinitePrefix]: Finished finitePrefix Result has 82591 conditions, 12040 events. 3683/12040 cut-off events. For 423558/423717 co-relation queries the response was YES. Maximal size of possible extension queue 294. Compared 120968 event pairs, 773 based on Foata normal form. 39/11561 useless extension candidates. Maximal degree in co-relation 82290. Up to 3442 conditions per place. [2020-10-11 19:50:03,909 INFO L132 encePairwiseOnDemand]: 99/128 looper letters, 958 selfloop transitions, 480 changer transitions 0/1505 dead transitions. [2020-10-11 19:50:03,909 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 805 places, 1505 transitions, 29329 flow [2020-10-11 19:50:03,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-10-11 19:50:03,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-11 19:50:03,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 3219 transitions. [2020-10-11 19:50:03,915 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.6133765243902439 [2020-10-11 19:50:03,915 INFO L72 ComplementDD]: Start complementDD. Operand 41 states and 3219 transitions. [2020-10-11 19:50:03,915 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 3219 transitions. [2020-10-11 19:50:03,916 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 19:50:03,916 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 41 states and 3219 transitions. [2020-10-11 19:50:03,919 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 42 states. [2020-10-11 19:50:03,923 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 42 states. [2020-10-11 19:50:03,923 INFO L81 ComplementDD]: Finished complementDD. Result 42 states. [2020-10-11 19:50:03,923 INFO L185 Difference]: Start difference. First operand has 765 places, 1187 transitions, 18835 flow. Second operand 41 states and 3219 transitions. [2020-10-11 19:50:03,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 805 places, 1505 transitions, 29329 flow [2020-10-11 19:50:06,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 792 places, 1505 transitions, 28198 flow, removed 399 selfloop flow, removed 13 redundant places. [2020-10-11 19:50:06,280 INFO L241 Difference]: Finished difference. Result has 818 places, 1295 transitions, 22650 flow [2020-10-11 19:50:06,282 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=18051, PETRI_DIFFERENCE_MINUEND_PLACES=752, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=382, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=789, PETRI_DIFFERENCE_SUBTRAHEND_STATES=41, PETRI_FLOW=22650, PETRI_PLACES=818, PETRI_TRANSITIONS=1295} [2020-10-11 19:50:06,282 INFO L341 CegarLoopForPetriNet]: 113 programPoint places, 705 predicate places. [2020-10-11 19:50:06,282 INFO L481 AbstractCegarLoop]: Abstraction has has 818 places, 1295 transitions, 22650 flow [2020-10-11 19:50:06,282 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-11 19:50:06,282 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 19:50:06,282 INFO L255 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] [2020-10-11 19:50:06,283 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-11 19:50:06,283 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-11 19:50:06,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 19:50:06,283 INFO L82 PathProgramCache]: Analyzing trace with hash -1040630755, now seen corresponding path program 12 times [2020-10-11 19:50:06,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 19:50:06,283 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306391903] [2020-10-11 19:50:06,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 19:50:06,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 19:50:07,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 19:50:07,809 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306391903] [2020-10-11 19:50:07,810 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 19:50:07,810 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2020-10-11 19:50:07,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683172743] [2020-10-11 19:50:07,810 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-11 19:50:07,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 19:50:07,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-11 19:50:07,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=591, Unknown=0, NotChecked=0, Total=650 [2020-10-11 19:50:58,884 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 128 [2020-10-11 19:50:58,885 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 818 places, 1295 transitions, 22650 flow. Second operand 26 states. [2020-10-11 19:50:58,885 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 19:50:58,885 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 128 [2020-10-11 19:50:58,886 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 19:50:59,869 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 41 [2020-10-11 19:51:00,127 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-10-11 19:51:00,355 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 49 [2020-10-11 19:51:00,688 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 53 [2020-10-11 19:51:01,053 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 57 [2020-10-11 19:51:01,896 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 63 [2020-10-11 19:51:02,322 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 67 [2020-10-11 19:51:03,493 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 71 [2020-10-11 19:51:04,420 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 75 [2020-10-11 19:51:04,887 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 80 [2020-10-11 19:51:05,577 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 80 [2020-10-11 19:51:06,387 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 83 [2020-10-11 19:51:06,832 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2020-10-11 19:51:07,261 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 79 [2020-10-11 19:51:08,538 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 84 [2020-10-11 19:51:13,765 INFO L129 PetriNetUnfolder]: 3964/13652 cut-off events. [2020-10-11 19:51:13,766 INFO L130 PetriNetUnfolder]: For 532998/533178 co-relation queries the response was YES. [2020-10-11 19:51:14,159 INFO L80 FinitePrefix]: Finished finitePrefix Result has 93067 conditions, 13652 events. 3964/13652 cut-off events. For 532998/533178 co-relation queries the response was YES. Maximal size of possible extension queue 338. Compared 143770 event pairs, 750 based on Foata normal form. 22/12980 useless extension candidates. Maximal degree in co-relation 92741. Up to 3598 conditions per place. [2020-10-11 19:51:14,226 INFO L132 encePairwiseOnDemand]: 98/128 looper letters, 1135 selfloop transitions, 500 changer transitions 0/1702 dead transitions. [2020-10-11 19:51:14,227 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 853 places, 1702 transitions, 34075 flow [2020-10-11 19:51:14,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-11 19:51:14,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-11 19:51:14,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 2807 transitions. [2020-10-11 19:51:14,232 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.6091579861111112 [2020-10-11 19:51:14,232 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 2807 transitions. [2020-10-11 19:51:14,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 2807 transitions. [2020-10-11 19:51:14,233 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 19:51:14,233 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 2807 transitions. [2020-10-11 19:51:14,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 37 states. [2020-10-11 19:51:14,239 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 37 states. [2020-10-11 19:51:14,239 INFO L81 ComplementDD]: Finished complementDD. Result 37 states. [2020-10-11 19:51:14,239 INFO L185 Difference]: Start difference. First operand has 818 places, 1295 transitions, 22650 flow. Second operand 36 states and 2807 transitions. [2020-10-11 19:51:14,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 853 places, 1702 transitions, 34075 flow [2020-10-11 19:51:17,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 844 places, 1702 transitions, 32862 flow, removed 541 selfloop flow, removed 9 redundant places. [2020-10-11 19:51:17,479 INFO L241 Difference]: Finished difference. Result has 869 places, 1371 transitions, 25190 flow [2020-10-11 19:51:17,480 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=21525, PETRI_DIFFERENCE_MINUEND_PLACES=809, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1295, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=437, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=829, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=25190, PETRI_PLACES=869, PETRI_TRANSITIONS=1371} [2020-10-11 19:51:17,481 INFO L341 CegarLoopForPetriNet]: 113 programPoint places, 756 predicate places. [2020-10-11 19:51:17,481 INFO L481 AbstractCegarLoop]: Abstraction has has 869 places, 1371 transitions, 25190 flow [2020-10-11 19:51:17,481 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-11 19:51:17,481 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 19:51:17,481 INFO L255 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] [2020-10-11 19:51:17,481 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-11 19:51:17,481 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-11 19:51:17,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 19:51:17,481 INFO L82 PathProgramCache]: Analyzing trace with hash -2025618605, now seen corresponding path program 13 times [2020-10-11 19:51:17,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 19:51:17,482 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046892541] [2020-10-11 19:51:17,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 19:51:17,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 19:51:18,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 19:51:18,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046892541] [2020-10-11 19:51:18,996 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 19:51:18,996 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2020-10-11 19:51:18,996 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023954503] [2020-10-11 19:51:18,997 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-11 19:51:18,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 19:51:18,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-11 19:51:18,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2020-10-11 19:52:07,937 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 128 [2020-10-11 19:52:07,939 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 869 places, 1371 transitions, 25190 flow. Second operand 25 states. [2020-10-11 19:52:07,939 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 19:52:07,939 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 128 [2020-10-11 19:52:07,939 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 19:52:08,959 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 41 [2020-10-11 19:52:09,178 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 45 [2020-10-11 19:52:09,561 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 49 [2020-10-11 19:52:09,985 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 53 [2020-10-11 19:52:10,285 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 57 [2020-10-11 19:52:10,617 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 59 [2020-10-11 19:52:10,923 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 57 [2020-10-11 19:52:11,205 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 62 [2020-10-11 19:52:11,520 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 59 [2020-10-11 19:52:11,799 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 56 [2020-10-11 19:52:12,143 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 61 [2020-10-11 19:52:12,481 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 63 [2020-10-11 19:52:12,902 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 64 [2020-10-11 19:52:13,210 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 65 [2020-10-11 19:52:13,527 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 61 [2020-10-11 19:52:13,917 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 60 [2020-10-11 19:52:14,252 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 68 [2020-10-11 19:52:14,745 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2020-10-11 19:52:15,068 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 69 [2020-10-11 19:52:15,449 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 72 [2020-10-11 19:52:15,916 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 65 [2020-10-11 19:52:16,483 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 72 [2020-10-11 19:52:17,066 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 74 [2020-10-11 19:52:17,748 WARN L193 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 77 [2020-10-11 19:52:18,884 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 74 [2020-10-11 19:52:19,451 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 76 [2020-10-11 19:52:20,188 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 79 [2020-10-11 19:52:25,724 INFO L129 PetriNetUnfolder]: 4101/13455 cut-off events. [2020-10-11 19:52:25,725 INFO L130 PetriNetUnfolder]: For 644097/644279 co-relation queries the response was YES. [2020-10-11 19:52:27,297 INFO L80 FinitePrefix]: Finished finitePrefix Result has 101856 conditions, 13455 events. 4101/13455 cut-off events. For 644097/644279 co-relation queries the response was YES. Maximal size of possible extension queue 338. Compared 138818 event pairs, 1130 based on Foata normal form. 21/12807 useless extension candidates. Maximal degree in co-relation 101505. Up to 4472 conditions per place. [2020-10-11 19:52:27,346 INFO L132 encePairwiseOnDemand]: 99/128 looper letters, 1156 selfloop transitions, 413 changer transitions 0/1636 dead transitions. [2020-10-11 19:52:27,346 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 909 places, 1636 transitions, 34783 flow [2020-10-11 19:52:27,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-10-11 19:52:27,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-11 19:52:27,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 3220 transitions. [2020-10-11 19:52:27,351 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.6135670731707317 [2020-10-11 19:52:27,352 INFO L72 ComplementDD]: Start complementDD. Operand 41 states and 3220 transitions. [2020-10-11 19:52:27,352 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 3220 transitions. [2020-10-11 19:52:27,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 19:52:27,352 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 41 states and 3220 transitions. [2020-10-11 19:52:27,356 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 42 states. [2020-10-11 19:52:27,359 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 42 states. [2020-10-11 19:52:27,359 INFO L81 ComplementDD]: Finished complementDD. Result 42 states. [2020-10-11 19:52:27,359 INFO L185 Difference]: Start difference. First operand has 869 places, 1371 transitions, 25190 flow. Second operand 41 states and 3220 transitions. [2020-10-11 19:52:27,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 909 places, 1636 transitions, 34783 flow [2020-10-11 19:52:30,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 901 places, 1636 transitions, 33023 flow, removed 829 selfloop flow, removed 8 redundant places. [2020-10-11 19:52:30,940 INFO L241 Difference]: Finished difference. Result has 927 places, 1472 transitions, 28046 flow [2020-10-11 19:52:30,941 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=24229, PETRI_DIFFERENCE_MINUEND_PLACES=861, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1370, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=320, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1034, PETRI_DIFFERENCE_SUBTRAHEND_STATES=41, PETRI_FLOW=28046, PETRI_PLACES=927, PETRI_TRANSITIONS=1472} [2020-10-11 19:52:30,942 INFO L341 CegarLoopForPetriNet]: 113 programPoint places, 814 predicate places. [2020-10-11 19:52:30,942 INFO L481 AbstractCegarLoop]: Abstraction has has 927 places, 1472 transitions, 28046 flow [2020-10-11 19:52:30,942 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-11 19:52:30,942 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 19:52:30,942 INFO L255 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] [2020-10-11 19:52:30,942 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-11 19:52:30,942 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-11 19:52:30,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 19:52:30,943 INFO L82 PathProgramCache]: Analyzing trace with hash -1634090297, now seen corresponding path program 14 times [2020-10-11 19:52:30,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 19:52:30,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125337281] [2020-10-11 19:52:30,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 19:52:30,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 19:52:32,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 19:52:32,419 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125337281] [2020-10-11 19:52:32,419 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 19:52:32,419 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2020-10-11 19:52:32,419 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27835692] [2020-10-11 19:52:32,420 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-11 19:52:32,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 19:52:32,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-11 19:52:32,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=544, Unknown=0, NotChecked=0, Total=600 [2020-10-11 19:53:27,171 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 128 [2020-10-11 19:53:27,172 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 927 places, 1472 transitions, 28046 flow. Second operand 25 states. [2020-10-11 19:53:27,173 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 19:53:27,173 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 128 [2020-10-11 19:53:27,173 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 19:53:28,289 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 41 [2020-10-11 19:53:28,554 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-10-11 19:53:28,822 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 49 [2020-10-11 19:53:29,084 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 53 [2020-10-11 19:53:29,444 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 57 [2020-10-11 19:53:29,965 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 61 [2020-10-11 19:53:31,238 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 63 [2020-10-11 19:53:31,866 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 67 [2020-10-11 19:53:33,557 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 71 [2020-10-11 19:53:34,102 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 76 [2020-10-11 19:53:34,705 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 74 [2020-10-11 19:53:35,235 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 69 [2020-10-11 19:53:35,687 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 77 [2020-10-11 19:53:36,237 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 71 [2020-10-11 19:53:36,654 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 73 [2020-10-11 19:53:37,276 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 74 [2020-10-11 19:53:37,962 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2020-10-11 19:53:38,404 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 78 [2020-10-11 19:53:39,863 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 69 [2020-10-11 19:53:44,753 INFO L129 PetriNetUnfolder]: 4482/15110 cut-off events. [2020-10-11 19:53:44,753 INFO L130 PetriNetUnfolder]: For 737723/737915 co-relation queries the response was YES. [2020-10-11 19:53:45,557 INFO L80 FinitePrefix]: Finished finitePrefix Result has 111235 conditions, 15110 events. 4482/15110 cut-off events. For 737723/737915 co-relation queries the response was YES. Maximal size of possible extension queue 357. Compared 161431 event pairs, 1081 based on Foata normal form. 26/14358 useless extension candidates. Maximal degree in co-relation 110859. Up to 5171 conditions per place. [2020-10-11 19:53:45,615 INFO L132 encePairwiseOnDemand]: 98/128 looper letters, 1400 selfloop transitions, 352 changer transitions 0/1819 dead transitions. [2020-10-11 19:53:45,615 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 959 places, 1819 transitions, 39746 flow [2020-10-11 19:53:45,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-11 19:53:45,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-11 19:53:45,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 2600 transitions. [2020-10-11 19:53:45,619 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.615530303030303 [2020-10-11 19:53:45,619 INFO L72 ComplementDD]: Start complementDD. Operand 33 states and 2600 transitions. [2020-10-11 19:53:45,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 2600 transitions. [2020-10-11 19:53:45,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 19:53:45,620 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 33 states and 2600 transitions. [2020-10-11 19:53:45,622 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 34 states. [2020-10-11 19:53:45,623 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 34 states. [2020-10-11 19:53:45,623 INFO L81 ComplementDD]: Finished complementDD. Result 34 states. [2020-10-11 19:53:45,623 INFO L185 Difference]: Start difference. First operand has 927 places, 1472 transitions, 28046 flow. Second operand 33 states and 2600 transitions. [2020-10-11 19:53:45,624 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 959 places, 1819 transitions, 39746 flow [2020-10-11 19:53:50,482 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 949 places, 1819 transitions, 38485 flow, removed 516 selfloop flow, removed 10 redundant places. [2020-10-11 19:53:50,513 INFO L241 Difference]: Finished difference. Result has 970 places, 1566 transitions, 31234 flow [2020-10-11 19:53:50,514 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=26837, PETRI_DIFFERENCE_MINUEND_PLACES=917, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1472, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=270, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=31234, PETRI_PLACES=970, PETRI_TRANSITIONS=1566} [2020-10-11 19:53:50,514 INFO L341 CegarLoopForPetriNet]: 113 programPoint places, 857 predicate places. [2020-10-11 19:53:50,515 INFO L481 AbstractCegarLoop]: Abstraction has has 970 places, 1566 transitions, 31234 flow [2020-10-11 19:53:50,515 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-11 19:53:50,515 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 19:53:50,515 INFO L255 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] [2020-10-11 19:53:50,515 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-11 19:53:50,515 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-11 19:53:50,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 19:53:50,516 INFO L82 PathProgramCache]: Analyzing trace with hash 417818833, now seen corresponding path program 15 times [2020-10-11 19:53:50,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 19:53:50,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96936019] [2020-10-11 19:53:50,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 19:53:50,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 19:53:51,834 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 23 [2020-10-11 19:53:52,004 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 22 [2020-10-11 19:53:52,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 19:53:52,324 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96936019] [2020-10-11 19:53:52,324 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 19:53:52,324 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2020-10-11 19:53:52,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848699644] [2020-10-11 19:53:52,324 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-11 19:53:52,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 19:53:52,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-11 19:53:52,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown