/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product63.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-22 05:24:22,560 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 05:24:22,563 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 05:24:22,592 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 05:24:22,593 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 05:24:22,602 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 05:24:22,603 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 05:24:22,605 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 05:24:22,606 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 05:24:22,607 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 05:24:22,608 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 05:24:22,609 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 05:24:22,609 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 05:24:22,610 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 05:24:22,611 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 05:24:22,612 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 05:24:22,613 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 05:24:22,613 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 05:24:22,615 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 05:24:22,617 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 05:24:22,618 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 05:24:22,619 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 05:24:22,620 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 05:24:22,621 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 05:24:22,623 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 05:24:22,623 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 05:24:22,623 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 05:24:22,624 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 05:24:22,624 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 05:24:22,625 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 05:24:22,626 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 05:24:22,626 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 05:24:22,627 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 05:24:22,628 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 05:24:22,628 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 05:24:22,629 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 05:24:22,629 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 05:24:22,630 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 05:24:22,630 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 05:24:22,630 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 05:24:22,631 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 05:24:22,632 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-22 05:24:22,654 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 05:24:22,655 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 05:24:22,656 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 05:24:22,656 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 05:24:22,656 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 05:24:22,656 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 05:24:22,657 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 05:24:22,657 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 05:24:22,657 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 05:24:22,657 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 05:24:22,657 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 05:24:22,657 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 05:24:22,658 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 05:24:22,658 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 05:24:22,658 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 05:24:22,658 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 05:24:22,658 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 05:24:22,659 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 05:24:22,659 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 05:24:22,659 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 05:24:22,659 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 05:24:22,659 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 05:24:22,660 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 05:24:22,660 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 05:24:22,660 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 05:24:22,660 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 05:24:22,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 05:24:22,661 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 05:24:22,661 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 05:24:22,661 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; [2020-08-22 05:24:22,944 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 05:24:22,965 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 05:24:22,969 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 05:24:22,971 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 05:24:22,972 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 05:24:22,973 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product63.cil.c [2020-08-22 05:24:23,046 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2aa600ff0/10872494c554403da746ceb9cacb8b80/FLAG9c67f78ac [2020-08-22 05:24:23,537 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 05:24:23,538 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product63.cil.c [2020-08-22 05:24:23,551 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2aa600ff0/10872494c554403da746ceb9cacb8b80/FLAG9c67f78ac [2020-08-22 05:24:23,868 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2aa600ff0/10872494c554403da746ceb9cacb8b80 [2020-08-22 05:24:23,876 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 05:24:23,878 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 05:24:23,879 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 05:24:23,880 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 05:24:23,883 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 05:24:23,884 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 05:24:23" (1/1) ... [2020-08-22 05:24:23,887 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22fd97d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 05:24:23, skipping insertion in model container [2020-08-22 05:24:23,888 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 05:24:23" (1/1) ... [2020-08-22 05:24:23,895 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 05:24:23,963 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 05:24:24,286 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 05:24:24,306 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 05:24:24,490 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 05:24:24,529 INFO L208 MainTranslator]: Completed translation [2020-08-22 05:24:24,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 05:24:24 WrapperNode [2020-08-22 05:24:24,530 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 05:24:24,531 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 05:24:24,531 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 05:24:24,531 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 05:24:24,545 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 05:24:24" (1/1) ... [2020-08-22 05:24:24,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 05:24:24" (1/1) ... [2020-08-22 05:24:24,564 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 05:24:24" (1/1) ... [2020-08-22 05:24:24,565 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 05:24:24" (1/1) ... [2020-08-22 05:24:24,597 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 05:24:24" (1/1) ... [2020-08-22 05:24:24,608 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 05:24:24" (1/1) ... [2020-08-22 05:24:24,614 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 05:24:24" (1/1) ... [2020-08-22 05:24:24,622 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 05:24:24,622 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 05:24:24,622 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 05:24:24,623 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 05:24:24,623 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 05:24:24" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-08-22 05:24:24,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 05:24:24,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 05:24:24,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-22 05:24:24,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-08-22 05:24:24,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-08-22 05:24:24,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-08-22 05:24:24,688 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-22 05:24:24,689 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-22 05:24:24,690 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-22 05:24:24,690 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-22 05:24:24,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-22 05:24:24,690 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-22 05:24:24,690 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-22 05:24:24,690 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-22 05:24:24,690 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-22 05:24:24,692 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-22 05:24:24,692 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 05:24:24,692 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-22 05:24:24,692 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-22 05:24:24,692 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-08-22 05:24:24,692 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-08-22 05:24:24,693 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-22 05:24:24,693 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-08-22 05:24:24,693 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-22 05:24:24,693 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-22 05:24:24,693 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-22 05:24:24,693 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-22 05:24:24,693 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-22 05:24:24,694 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-22 05:24:24,696 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-08-22 05:24:24,696 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-22 05:24:24,696 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-22 05:24:24,696 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-22 05:24:24,696 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-22 05:24:24,697 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-22 05:24:24,697 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-22 05:24:24,697 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-22 05:24:24,697 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-22 05:24:24,697 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-08-22 05:24:24,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-22 05:24:24,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-22 05:24:24,698 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-22 05:24:24,698 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-22 05:24:24,698 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-22 05:24:24,698 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-22 05:24:24,699 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 05:24:24,699 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 05:24:24,699 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-22 05:24:24,699 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-22 05:24:24,699 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-22 05:24:24,699 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-22 05:24:24,700 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-08-22 05:24:24,700 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-08-22 05:24:24,700 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-08-22 05:24:24,700 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-22 05:24:24,700 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-22 05:24:24,700 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-22 05:24:24,701 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-22 05:24:24,702 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-22 05:24:24,703 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-22 05:24:24,703 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-22 05:24:24,703 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-22 05:24:24,703 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-22 05:24:24,703 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-22 05:24:24,703 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-22 05:24:24,703 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-22 05:24:24,704 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-22 05:24:24,704 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-22 05:24:24,704 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 05:24:24,704 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-22 05:24:24,705 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-22 05:24:24,705 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-22 05:24:24,705 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-22 05:24:24,705 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-08-22 05:24:24,705 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-22 05:24:24,705 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-22 05:24:24,705 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-22 05:24:24,706 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-22 05:24:24,707 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-22 05:24:24,707 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-08-22 05:24:24,708 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-08-22 05:24:24,708 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-08-22 05:24:24,709 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-22 05:24:24,709 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-08-22 05:24:24,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 05:24:24,709 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-22 05:24:24,709 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 05:24:24,709 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 05:24:24,710 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-22 05:24:24,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 05:24:24,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 05:24:24,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 05:24:24,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 05:24:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-22 05:24:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 05:24:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-22 05:24:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-22 05:24:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 05:24:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-22 05:24:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-22 05:24:24,712 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-22 05:24:24,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 05:24:24,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 05:24:24,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 05:24:25,747 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 05:24:25,747 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-22 05:24:25,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 05:24:25 BoogieIcfgContainer [2020-08-22 05:24:25,757 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 05:24:25,761 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 05:24:25,761 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 05:24:25,764 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 05:24:25,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 05:24:23" (1/3) ... [2020-08-22 05:24:25,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43005d4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 05:24:25, skipping insertion in model container [2020-08-22 05:24:25,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 05:24:24" (2/3) ... [2020-08-22 05:24:25,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43005d4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 05:24:25, skipping insertion in model container [2020-08-22 05:24:25,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 05:24:25" (3/3) ... [2020-08-22 05:24:25,769 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product63.cil.c [2020-08-22 05:24:25,779 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 05:24:25,791 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 05:24:25,806 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 05:24:25,832 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 05:24:25,832 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 05:24:25,833 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 05:24:25,833 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 05:24:25,833 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 05:24:25,833 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 05:24:25,834 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 05:24:25,834 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 05:24:25,858 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states. [2020-08-22 05:24:25,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-08-22 05:24:25,870 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 05:24:25,871 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 05:24:25,872 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 05:24:25,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 05:24:25,878 INFO L82 PathProgramCache]: Analyzing trace with hash -1893311162, now seen corresponding path program 1 times [2020-08-22 05:24:25,887 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 05:24:25,888 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1322695816] [2020-08-22 05:24:25,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 05:24:26,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:26,598 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 05:24:26,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:24:26,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:26,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 05:24:26,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:26,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 05:24:26,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:26,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 05:24:26,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:26,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 05:24:26,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:26,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 05:24:26,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:26,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 05:24:26,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:26,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:24:26,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:26,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-22 05:24:26,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:26,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 05:24:26,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:26,709 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 05:24:26,711 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1322695816] [2020-08-22 05:24:26,713 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 05:24:26,714 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 05:24:26,715 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350371905] [2020-08-22 05:24:26,722 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 05:24:26,722 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 05:24:26,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 05:24:26,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-22 05:24:26,741 INFO L87 Difference]: Start difference. First operand 212 states. Second operand 4 states. [2020-08-22 05:24:28,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 05:24:28,048 INFO L93 Difference]: Finished difference Result 372 states and 477 transitions. [2020-08-22 05:24:28,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-22 05:24:28,050 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-08-22 05:24:28,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 05:24:28,066 INFO L225 Difference]: With dead ends: 372 [2020-08-22 05:24:28,066 INFO L226 Difference]: Without dead ends: 204 [2020-08-22 05:24:28,072 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-22 05:24:28,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2020-08-22 05:24:28,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 169. [2020-08-22 05:24:28,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-08-22 05:24:28,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 201 transitions. [2020-08-22 05:24:28,187 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 201 transitions. Word has length 59 [2020-08-22 05:24:28,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 05:24:28,189 INFO L479 AbstractCegarLoop]: Abstraction has 169 states and 201 transitions. [2020-08-22 05:24:28,189 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 05:24:28,189 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 201 transitions. [2020-08-22 05:24:28,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-08-22 05:24:28,201 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 05:24:28,202 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 05:24:28,202 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 05:24:28,202 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 05:24:28,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 05:24:28,203 INFO L82 PathProgramCache]: Analyzing trace with hash 1978801715, now seen corresponding path program 1 times [2020-08-22 05:24:28,203 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 05:24:28,203 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1014105119] [2020-08-22 05:24:28,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 05:24:28,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:28,528 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 05:24:28,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:24:28,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:28,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 05:24:28,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:28,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 05:24:28,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:28,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 05:24:28,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:28,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 05:24:28,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:28,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 05:24:28,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:28,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 05:24:28,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:28,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:24:28,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:28,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-22 05:24:28,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:28,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-08-22 05:24:28,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:28,584 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 05:24:28,584 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1014105119] [2020-08-22 05:24:28,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 05:24:28,585 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 05:24:28,585 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963431267] [2020-08-22 05:24:28,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 05:24:28,587 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 05:24:28,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 05:24:28,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 05:24:28,588 INFO L87 Difference]: Start difference. First operand 169 states and 201 transitions. Second operand 5 states. [2020-08-22 05:24:29,024 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 05:24:30,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 05:24:30,185 INFO L93 Difference]: Finished difference Result 311 states and 381 transitions. [2020-08-22 05:24:30,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 05:24:30,186 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2020-08-22 05:24:30,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 05:24:30,190 INFO L225 Difference]: With dead ends: 311 [2020-08-22 05:24:30,190 INFO L226 Difference]: Without dead ends: 194 [2020-08-22 05:24:30,192 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-22 05:24:30,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2020-08-22 05:24:30,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 160. [2020-08-22 05:24:30,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-08-22 05:24:30,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 189 transitions. [2020-08-22 05:24:30,236 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 189 transitions. Word has length 60 [2020-08-22 05:24:30,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 05:24:30,236 INFO L479 AbstractCegarLoop]: Abstraction has 160 states and 189 transitions. [2020-08-22 05:24:30,236 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 05:24:30,236 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 189 transitions. [2020-08-22 05:24:30,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-08-22 05:24:30,238 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 05:24:30,238 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 05:24:30,238 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 05:24:30,239 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 05:24:30,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 05:24:30,239 INFO L82 PathProgramCache]: Analyzing trace with hash -532508270, now seen corresponding path program 1 times [2020-08-22 05:24:30,239 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 05:24:30,240 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1958812403] [2020-08-22 05:24:30,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 05:24:30,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:30,565 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 05:24:30,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:24:30,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:30,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 05:24:30,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:30,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 05:24:30,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:30,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 05:24:30,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:30,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 05:24:30,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:30,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 05:24:30,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:30,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 05:24:30,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:30,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:24:30,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:30,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-22 05:24:30,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:30,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-22 05:24:30,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:30,714 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 05:24:30,714 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1958812403] [2020-08-22 05:24:30,714 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 05:24:30,715 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 05:24:30,715 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683738653] [2020-08-22 05:24:30,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 05:24:30,716 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 05:24:30,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 05:24:30,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-22 05:24:30,717 INFO L87 Difference]: Start difference. First operand 160 states and 189 transitions. Second operand 9 states. [2020-08-22 05:24:31,059 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 05:24:31,403 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 05:24:31,650 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 05:24:31,874 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 05:24:32,734 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 05:24:35,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 05:24:35,044 INFO L93 Difference]: Finished difference Result 533 states and 661 transitions. [2020-08-22 05:24:35,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-22 05:24:35,045 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 64 [2020-08-22 05:24:35,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 05:24:35,050 INFO L225 Difference]: With dead ends: 533 [2020-08-22 05:24:35,050 INFO L226 Difference]: Without dead ends: 401 [2020-08-22 05:24:35,052 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2020-08-22 05:24:35,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2020-08-22 05:24:35,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 340. [2020-08-22 05:24:35,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2020-08-22 05:24:35,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 414 transitions. [2020-08-22 05:24:35,139 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 414 transitions. Word has length 64 [2020-08-22 05:24:35,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 05:24:35,140 INFO L479 AbstractCegarLoop]: Abstraction has 340 states and 414 transitions. [2020-08-22 05:24:35,140 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 05:24:35,140 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 414 transitions. [2020-08-22 05:24:35,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-08-22 05:24:35,142 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 05:24:35,142 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 05:24:35,142 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 05:24:35,143 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 05:24:35,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 05:24:35,143 INFO L82 PathProgramCache]: Analyzing trace with hash 216340368, now seen corresponding path program 1 times [2020-08-22 05:24:35,143 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 05:24:35,144 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1700898368] [2020-08-22 05:24:35,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 05:24:35,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:35,483 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 05:24:35,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:24:35,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:35,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 05:24:35,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:35,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 05:24:35,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:35,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 05:24:35,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:35,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 05:24:35,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:35,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 05:24:35,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:35,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 05:24:35,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:35,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-22 05:24:35,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:35,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:24:35,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:35,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-22 05:24:35,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:35,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-22 05:24:35,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:35,596 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-22 05:24:35,596 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1700898368] [2020-08-22 05:24:35,596 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 05:24:35,596 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 05:24:35,597 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328979066] [2020-08-22 05:24:35,597 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 05:24:35,598 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 05:24:35,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 05:24:35,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-22 05:24:35,598 INFO L87 Difference]: Start difference. First operand 340 states and 414 transitions. Second operand 9 states. [2020-08-22 05:24:35,925 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 05:24:36,599 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 05:24:37,668 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 05:24:37,940 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 05:24:38,238 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 05:24:38,547 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 05:24:39,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 05:24:39,572 INFO L93 Difference]: Finished difference Result 875 states and 1130 transitions. [2020-08-22 05:24:39,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-22 05:24:39,573 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2020-08-22 05:24:39,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 05:24:39,579 INFO L225 Difference]: With dead ends: 875 [2020-08-22 05:24:39,579 INFO L226 Difference]: Without dead ends: 563 [2020-08-22 05:24:39,582 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-08-22 05:24:39,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2020-08-22 05:24:39,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 499. [2020-08-22 05:24:39,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 499 states. [2020-08-22 05:24:39,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 597 transitions. [2020-08-22 05:24:39,679 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 597 transitions. Word has length 70 [2020-08-22 05:24:39,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 05:24:39,679 INFO L479 AbstractCegarLoop]: Abstraction has 499 states and 597 transitions. [2020-08-22 05:24:39,680 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 05:24:39,680 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 597 transitions. [2020-08-22 05:24:39,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-08-22 05:24:39,682 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 05:24:39,682 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 05:24:39,682 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 05:24:39,683 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 05:24:39,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 05:24:39,683 INFO L82 PathProgramCache]: Analyzing trace with hash -1357993179, now seen corresponding path program 1 times [2020-08-22 05:24:39,683 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 05:24:39,684 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2018002473] [2020-08-22 05:24:39,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 05:24:39,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:39,938 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 05:24:39,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:24:39,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:39,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 05:24:39,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:39,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 05:24:39,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:39,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 05:24:39,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:39,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 05:24:39,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:39,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 05:24:39,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:39,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 05:24:39,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:39,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:24:39,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:39,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-22 05:24:39,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:39,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 05:24:39,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:39,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 05:24:39,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:40,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 05:24:40,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:40,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:24:40,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:40,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 05:24:40,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:40,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:24:40,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:40,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:24:40,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:40,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 05:24:40,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:40,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-08-22 05:24:40,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:40,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-08-22 05:24:40,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:40,088 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 05:24:40,088 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2018002473] [2020-08-22 05:24:40,089 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 05:24:40,089 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 05:24:40,089 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149636069] [2020-08-22 05:24:40,090 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 05:24:40,090 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 05:24:40,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 05:24:40,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-22 05:24:40,091 INFO L87 Difference]: Start difference. First operand 499 states and 597 transitions. Second operand 9 states. [2020-08-22 05:24:41,175 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 05:24:41,439 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 05:24:41,667 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 05:24:41,913 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 05:24:42,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 05:24:42,873 INFO L93 Difference]: Finished difference Result 1060 states and 1356 transitions. [2020-08-22 05:24:42,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-22 05:24:42,878 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 112 [2020-08-22 05:24:42,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 05:24:42,883 INFO L225 Difference]: With dead ends: 1060 [2020-08-22 05:24:42,883 INFO L226 Difference]: Without dead ends: 589 [2020-08-22 05:24:42,886 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-08-22 05:24:42,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2020-08-22 05:24:43,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 512. [2020-08-22 05:24:43,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 512 states. [2020-08-22 05:24:43,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 611 transitions. [2020-08-22 05:24:43,006 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 611 transitions. Word has length 112 [2020-08-22 05:24:43,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 05:24:43,007 INFO L479 AbstractCegarLoop]: Abstraction has 512 states and 611 transitions. [2020-08-22 05:24:43,007 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 05:24:43,007 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 611 transitions. [2020-08-22 05:24:43,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-08-22 05:24:43,009 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 05:24:43,009 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 05:24:43,010 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 05:24:43,010 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 05:24:43,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 05:24:43,010 INFO L82 PathProgramCache]: Analyzing trace with hash 581168867, now seen corresponding path program 1 times [2020-08-22 05:24:43,010 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 05:24:43,011 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [913413023] [2020-08-22 05:24:43,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 05:24:43,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:43,317 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 05:24:43,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:24:43,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:43,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 05:24:43,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:43,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 05:24:43,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:43,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 05:24:43,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:43,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 05:24:43,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:43,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 05:24:43,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:43,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 05:24:43,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:43,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:24:43,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:43,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-22 05:24:43,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:43,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 05:24:43,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:43,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 05:24:43,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:43,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 05:24:43,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:43,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:24:43,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:43,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 05:24:43,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:43,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:24:43,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:43,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:24:43,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:43,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 05:24:43,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:43,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-08-22 05:24:43,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:43,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-08-22 05:24:43,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:43,517 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 05:24:43,517 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [913413023] [2020-08-22 05:24:43,518 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 05:24:43,518 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-22 05:24:43,518 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526291155] [2020-08-22 05:24:43,519 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-22 05:24:43,519 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 05:24:43,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-22 05:24:43,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-08-22 05:24:43,520 INFO L87 Difference]: Start difference. First operand 512 states and 611 transitions. Second operand 11 states. [2020-08-22 05:24:43,951 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 05:24:44,218 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 05:24:44,455 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 05:24:45,290 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 05:24:45,619 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 05:24:45,909 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 05:24:46,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 05:24:46,991 INFO L93 Difference]: Finished difference Result 1083 states and 1380 transitions. [2020-08-22 05:24:46,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-22 05:24:46,992 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 112 [2020-08-22 05:24:46,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 05:24:46,996 INFO L225 Difference]: With dead ends: 1083 [2020-08-22 05:24:46,997 INFO L226 Difference]: Without dead ends: 599 [2020-08-22 05:24:46,998 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-08-22 05:24:46,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2020-08-22 05:24:47,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 520. [2020-08-22 05:24:47,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 520 states. [2020-08-22 05:24:47,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 619 transitions. [2020-08-22 05:24:47,084 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 619 transitions. Word has length 112 [2020-08-22 05:24:47,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 05:24:47,085 INFO L479 AbstractCegarLoop]: Abstraction has 520 states and 619 transitions. [2020-08-22 05:24:47,085 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-22 05:24:47,085 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 619 transitions. [2020-08-22 05:24:47,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-08-22 05:24:47,087 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 05:24:47,087 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 05:24:47,087 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 05:24:47,088 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 05:24:47,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 05:24:47,088 INFO L82 PathProgramCache]: Analyzing trace with hash 1350338882, now seen corresponding path program 1 times [2020-08-22 05:24:47,088 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 05:24:47,089 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1339290187] [2020-08-22 05:24:47,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 05:24:47,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:47,369 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 05:24:47,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:24:47,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:47,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 05:24:47,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:47,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 05:24:47,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:47,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 05:24:47,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:47,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 05:24:47,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:47,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 05:24:47,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:47,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 05:24:47,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:47,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:24:47,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:47,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-22 05:24:47,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:47,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 05:24:47,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:47,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 05:24:47,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:47,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 05:24:47,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:47,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:24:47,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:47,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 05:24:47,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:47,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:24:47,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:47,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:24:47,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:47,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 05:24:47,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:47,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-08-22 05:24:47,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:47,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-08-22 05:24:47,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:47,607 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 05:24:47,608 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1339290187] [2020-08-22 05:24:47,613 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 05:24:47,613 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 05:24:47,613 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301823521] [2020-08-22 05:24:47,614 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 05:24:47,615 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 05:24:47,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 05:24:47,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-22 05:24:47,616 INFO L87 Difference]: Start difference. First operand 520 states and 619 transitions. Second operand 7 states. [2020-08-22 05:24:47,963 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 05:24:48,564 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 05:24:51,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 05:24:51,062 INFO L93 Difference]: Finished difference Result 1571 states and 2020 transitions. [2020-08-22 05:24:51,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-22 05:24:51,062 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 112 [2020-08-22 05:24:51,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 05:24:51,071 INFO L225 Difference]: With dead ends: 1571 [2020-08-22 05:24:51,072 INFO L226 Difference]: Without dead ends: 1079 [2020-08-22 05:24:51,075 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 45 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-08-22 05:24:51,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1079 states. [2020-08-22 05:24:51,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1079 to 1005. [2020-08-22 05:24:51,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1005 states. [2020-08-22 05:24:51,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1219 transitions. [2020-08-22 05:24:51,271 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1219 transitions. Word has length 112 [2020-08-22 05:24:51,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 05:24:51,273 INFO L479 AbstractCegarLoop]: Abstraction has 1005 states and 1219 transitions. [2020-08-22 05:24:51,273 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 05:24:51,273 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1219 transitions. [2020-08-22 05:24:51,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-08-22 05:24:51,286 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 05:24:51,286 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 05:24:51,286 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-22 05:24:51,287 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 05:24:51,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 05:24:51,287 INFO L82 PathProgramCache]: Analyzing trace with hash -1975342852, now seen corresponding path program 1 times [2020-08-22 05:24:51,287 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 05:24:51,287 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1816716193] [2020-08-22 05:24:51,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 05:24:51,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:51,729 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 05:24:51,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:24:51,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:51,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 05:24:51,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:51,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 05:24:51,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:51,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 05:24:51,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:51,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 05:24:51,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:51,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 05:24:51,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:51,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 05:24:51,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:51,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-22 05:24:51,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:51,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:24:51,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:51,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-08-22 05:24:51,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:51,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 05:24:51,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:51,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 05:24:51,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:51,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 05:24:51,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:51,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:24:51,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:51,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 05:24:51,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:51,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:24:51,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:51,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:24:51,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:51,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 05:24:51,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:51,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-08-22 05:24:51,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:51,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-08-22 05:24:51,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:51,924 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 05:24:51,925 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1816716193] [2020-08-22 05:24:51,925 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 05:24:51,925 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-22 05:24:51,927 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265652261] [2020-08-22 05:24:51,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-22 05:24:51,928 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 05:24:51,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-22 05:24:51,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-08-22 05:24:51,928 INFO L87 Difference]: Start difference. First operand 1005 states and 1219 transitions. Second operand 12 states. [2020-08-22 05:24:52,304 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 05:24:52,979 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 05:24:53,727 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 05:24:54,033 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 05:24:54,287 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 05:24:54,599 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 05:24:54,873 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 05:24:57,234 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 05:24:57,592 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 05:24:58,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 05:24:58,468 INFO L93 Difference]: Finished difference Result 2851 states and 3676 transitions. [2020-08-22 05:24:58,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-08-22 05:24:58,469 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 116 [2020-08-22 05:24:58,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 05:24:58,486 INFO L225 Difference]: With dead ends: 2851 [2020-08-22 05:24:58,486 INFO L226 Difference]: Without dead ends: 2072 [2020-08-22 05:24:58,492 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2020-08-22 05:24:58,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2072 states. [2020-08-22 05:24:58,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2072 to 1772. [2020-08-22 05:24:58,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1772 states. [2020-08-22 05:24:58,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1772 states to 1772 states and 2130 transitions. [2020-08-22 05:24:58,867 INFO L78 Accepts]: Start accepts. Automaton has 1772 states and 2130 transitions. Word has length 116 [2020-08-22 05:24:58,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 05:24:58,869 INFO L479 AbstractCegarLoop]: Abstraction has 1772 states and 2130 transitions. [2020-08-22 05:24:58,869 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-22 05:24:58,869 INFO L276 IsEmpty]: Start isEmpty. Operand 1772 states and 2130 transitions. [2020-08-22 05:24:58,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-08-22 05:24:58,874 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 05:24:58,874 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 05:24:58,875 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-22 05:24:58,875 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 05:24:58,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 05:24:58,875 INFO L82 PathProgramCache]: Analyzing trace with hash -283315442, now seen corresponding path program 1 times [2020-08-22 05:24:58,876 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 05:24:58,876 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1036241546] [2020-08-22 05:24:58,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 05:24:58,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:59,227 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 05:24:59,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:24:59,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:59,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 05:24:59,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:59,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 05:24:59,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:59,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 05:24:59,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:59,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 05:24:59,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:59,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 05:24:59,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:59,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 05:24:59,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:59,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-22 05:24:59,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:59,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:24:59,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:59,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:24:59,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:59,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 05:24:59,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:59,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 05:24:59,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:59,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 05:24:59,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:59,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 05:24:59,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:59,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:24:59,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:59,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 05:24:59,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:59,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:24:59,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:59,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:24:59,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:59,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 05:24:59,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:59,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-08-22 05:24:59,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:59,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:24:59,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:59,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-22 05:24:59,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:59,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:24:59,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:59,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-08-22 05:24:59,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:59,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 05:24:59,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:59,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 05:24:59,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:59,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:24:59,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:59,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 05:24:59,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:59,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 05:24:59,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:59,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:24:59,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:59,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 05:24:59,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:59,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 05:24:59,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:59,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-08-22 05:24:59,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:59,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-08-22 05:24:59,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:24:59,602 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 21 proven. 10 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-08-22 05:24:59,603 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1036241546] [2020-08-22 05:24:59,603 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 05:24:59,603 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-22 05:24:59,603 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890893100] [2020-08-22 05:24:59,605 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-22 05:24:59,605 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 05:24:59,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-22 05:24:59,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-08-22 05:24:59,606 INFO L87 Difference]: Start difference. First operand 1772 states and 2130 transitions. Second operand 16 states. [2020-08-22 05:25:00,343 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 05:25:00,709 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-22 05:25:01,002 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 05:25:01,259 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 05:25:01,973 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 05:25:02,328 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 05:25:02,763 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 05:25:03,071 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 05:25:04,547 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 05:25:05,174 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 05:25:05,515 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 05:25:05,946 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 05:25:06,552 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 05:25:06,987 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 05:25:07,717 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 05:25:08,019 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 05:25:08,595 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 05:25:09,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 05:25:09,451 INFO L93 Difference]: Finished difference Result 3775 states and 4672 transitions. [2020-08-22 05:25:09,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-08-22 05:25:09,455 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 193 [2020-08-22 05:25:09,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 05:25:09,467 INFO L225 Difference]: With dead ends: 3775 [2020-08-22 05:25:09,468 INFO L226 Difference]: Without dead ends: 2217 [2020-08-22 05:25:09,473 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 665 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=589, Invalid=2167, Unknown=0, NotChecked=0, Total=2756 [2020-08-22 05:25:09,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2217 states. [2020-08-22 05:25:09,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2217 to 2039. [2020-08-22 05:25:09,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2039 states. [2020-08-22 05:25:09,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2039 states to 2039 states and 2400 transitions. [2020-08-22 05:25:09,919 INFO L78 Accepts]: Start accepts. Automaton has 2039 states and 2400 transitions. Word has length 193 [2020-08-22 05:25:09,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 05:25:09,922 INFO L479 AbstractCegarLoop]: Abstraction has 2039 states and 2400 transitions. [2020-08-22 05:25:09,922 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-22 05:25:09,922 INFO L276 IsEmpty]: Start isEmpty. Operand 2039 states and 2400 transitions. [2020-08-22 05:25:09,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2020-08-22 05:25:09,938 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 05:25:09,939 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 05:25:09,939 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-22 05:25:09,939 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 05:25:09,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 05:25:09,940 INFO L82 PathProgramCache]: Analyzing trace with hash -1594839617, now seen corresponding path program 1 times [2020-08-22 05:25:09,940 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 05:25:09,941 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [510145767] [2020-08-22 05:25:09,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 05:25:10,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,285 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 05:25:10,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:25:10,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 05:25:10,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 05:25:10,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 05:25:10,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 05:25:10,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 05:25:10,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 05:25:10,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-22 05:25:10,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:25:10,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:25:10,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 05:25:10,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 05:25:10,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 05:25:10,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 05:25:10,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:25:10,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 05:25:10,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:25:10,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:25:10,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 05:25:10,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-08-22 05:25:10,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:25:10,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-08-22 05:25:10,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:25:10,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:25:10,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 05:25:10,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 05:25:10,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 05:25:10,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:25:10,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 05:25:10,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 05:25:10,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:25:10,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 05:25:10,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 05:25:10,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-22 05:25:10,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:25:10,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2020-08-22 05:25:10,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:25:10,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:25:10,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 05:25:10,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 05:25:10,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 05:25:10,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:25:10,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 05:25:10,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-22 05:25:10,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:25:10,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-08-22 05:25:10,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2020-08-22 05:25:10,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:25:10,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2020-08-22 05:25:10,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 05:25:10,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 05:25:10,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 05:25:10,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:25:10,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 05:25:10,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:25:10,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:25:10,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 05:25:10,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2020-08-22 05:25:10,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2020-08-22 05:25:10,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:10,950 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 75 proven. 21 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2020-08-22 05:25:10,951 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [510145767] [2020-08-22 05:25:10,951 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 05:25:10,951 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-22 05:25:10,952 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696762645] [2020-08-22 05:25:10,953 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-22 05:25:10,953 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 05:25:10,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-22 05:25:10,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2020-08-22 05:25:10,954 INFO L87 Difference]: Start difference. First operand 2039 states and 2400 transitions. Second operand 16 states. [2020-08-22 05:25:11,624 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 05:25:12,445 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 05:25:14,204 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 05:25:14,550 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 05:25:14,805 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 05:25:15,099 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 05:25:15,405 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 05:25:15,670 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 05:25:17,104 WARN L193 SmtUtils]: Spent 493.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-08-22 05:25:17,581 WARN L193 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-08-22 05:25:18,071 WARN L193 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 192 [2020-08-22 05:25:18,547 WARN L193 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 192 [2020-08-22 05:25:19,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 05:25:19,737 INFO L93 Difference]: Finished difference Result 5889 states and 7114 transitions. [2020-08-22 05:25:19,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-08-22 05:25:19,742 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 331 [2020-08-22 05:25:19,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 05:25:19,765 INFO L225 Difference]: With dead ends: 5889 [2020-08-22 05:25:19,765 INFO L226 Difference]: Without dead ends: 3886 [2020-08-22 05:25:19,772 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 385 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=376, Invalid=1346, Unknown=0, NotChecked=0, Total=1722 [2020-08-22 05:25:19,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3886 states. [2020-08-22 05:25:20,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3886 to 3783. [2020-08-22 05:25:20,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3783 states. [2020-08-22 05:25:20,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3783 states to 3783 states and 4382 transitions. [2020-08-22 05:25:20,593 INFO L78 Accepts]: Start accepts. Automaton has 3783 states and 4382 transitions. Word has length 331 [2020-08-22 05:25:20,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 05:25:20,596 INFO L479 AbstractCegarLoop]: Abstraction has 3783 states and 4382 transitions. [2020-08-22 05:25:20,597 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-22 05:25:20,597 INFO L276 IsEmpty]: Start isEmpty. Operand 3783 states and 4382 transitions. [2020-08-22 05:25:20,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2020-08-22 05:25:20,613 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 05:25:20,613 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 05:25:20,613 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-22 05:25:20,614 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 05:25:20,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 05:25:20,614 INFO L82 PathProgramCache]: Analyzing trace with hash 2050979555, now seen corresponding path program 1 times [2020-08-22 05:25:20,614 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 05:25:20,615 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1447890712] [2020-08-22 05:25:20,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 05:25:20,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:20,948 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 05:25:20,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:25:20,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:20,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 05:25:20,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:20,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 05:25:20,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:20,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 05:25:20,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:20,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 05:25:20,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 05:25:21,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 05:25:21,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-22 05:25:21,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:25:21,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:25:21,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 05:25:21,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 05:25:21,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 05:25:21,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 05:25:21,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:25:21,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 05:25:21,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:25:21,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:25:21,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 05:25:21,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-08-22 05:25:21,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:25:21,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-08-22 05:25:21,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:25:21,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:25:21,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 05:25:21,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 05:25:21,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 05:25:21,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:25:21,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 05:25:21,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 05:25:21,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:25:21,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 05:25:21,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 05:25:21,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-22 05:25:21,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:25:21,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-08-22 05:25:21,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-08-22 05:25:21,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:25:21,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:25:21,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 05:25:21,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 05:25:21,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 05:25:21,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:25:21,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 05:25:21,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-22 05:25:21,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:25:21,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2020-08-22 05:25:21,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2020-08-22 05:25:21,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:25:21,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2020-08-22 05:25:21,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 05:25:21,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 05:25:21,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 05:25:21,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:25:21,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 05:25:21,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:25:21,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 05:25:21,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 05:25:21,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2020-08-22 05:25:21,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-08-22 05:25:21,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:25:21,629 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 89 proven. 3 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2020-08-22 05:25:21,630 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1447890712] [2020-08-22 05:25:21,630 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 05:25:21,630 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-08-22 05:25:21,630 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012724049] [2020-08-22 05:25:21,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-08-22 05:25:21,632 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 05:25:21,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-08-22 05:25:21,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2020-08-22 05:25:21,633 INFO L87 Difference]: Start difference. First operand 3783 states and 4382 transitions. Second operand 19 states. [2020-08-22 05:25:22,109 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 05:25:22,458 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 05:25:22,725 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 05:25:22,979 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 192