/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=0.1 --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_product47.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-22 02:57:09,510 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 02:57:09,513 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 02:57:09,548 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 02:57:09,550 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 02:57:09,558 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 02:57:09,559 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 02:57:09,563 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 02:57:09,565 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 02:57:09,568 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 02:57:09,569 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 02:57:09,570 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 02:57:09,570 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 02:57:09,573 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 02:57:09,575 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 02:57:09,576 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 02:57:09,578 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 02:57:09,579 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 02:57:09,580 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 02:57:09,588 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 02:57:09,590 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 02:57:09,591 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 02:57:09,592 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 02:57:09,592 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 02:57:09,604 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 02:57:09,604 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 02:57:09,610 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 02:57:09,611 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 02:57:09,611 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 02:57:09,615 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 02:57:09,615 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 02:57:09,616 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 02:57:09,617 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 02:57:09,617 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 02:57:09,620 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 02:57:09,621 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 02:57:09,621 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 02:57:09,622 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 02:57:09,622 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 02:57:09,622 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 02:57:09,624 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 02:57:09,624 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 02:57:09,662 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 02:57:09,662 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 02:57:09,664 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 02:57:09,664 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 02:57:09,664 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 02:57:09,665 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 02:57:09,665 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 02:57:09,665 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 02:57:09,666 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 02:57:09,666 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 02:57:09,666 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 02:57:09,667 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 02:57:09,667 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 02:57:09,668 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 02:57:09,668 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 02:57:09,668 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 02:57:09,668 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 02:57:09,669 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 02:57:09,669 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 02:57:09,669 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 02:57:09,669 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 02:57:09,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 02:57:09,670 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 02:57:09,670 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 02:57:09,670 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 02:57:09,670 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 02:57:09,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 02:57:09,671 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 02:57:09,671 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 02:57:09,671 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=0.1;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=0.1;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=0.1;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=0.1;log-additional-information=true; [2020-08-22 02:57:09,967 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 02:57:09,980 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 02:57:09,984 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 02:57:09,985 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 02:57:09,986 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 02:57:09,987 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product47.cil.c [2020-08-22 02:57:10,051 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ae191b85a/54d7bc5140f545dfb683d614afe3794c/FLAGb83a9a3a9 [2020-08-22 02:57:10,577 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 02:57:10,577 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product47.cil.c [2020-08-22 02:57:10,590 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ae191b85a/54d7bc5140f545dfb683d614afe3794c/FLAGb83a9a3a9 [2020-08-22 02:57:10,899 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ae191b85a/54d7bc5140f545dfb683d614afe3794c [2020-08-22 02:57:10,908 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 02:57:10,910 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 02:57:10,911 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 02:57:10,911 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 02:57:10,915 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 02:57:10,916 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 02:57:10" (1/1) ... [2020-08-22 02:57:10,919 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@710186eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:57:10, skipping insertion in model container [2020-08-22 02:57:10,919 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 02:57:10" (1/1) ... [2020-08-22 02:57:10,927 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 02:57:10,974 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 02:57:11,391 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 02:57:11,404 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 02:57:11,485 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 02:57:11,533 INFO L208 MainTranslator]: Completed translation [2020-08-22 02:57:11,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:57:11 WrapperNode [2020-08-22 02:57:11,533 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 02:57:11,534 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 02:57:11,534 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 02:57:11,534 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 02:57:11,546 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:57:11" (1/1) ... [2020-08-22 02:57:11,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:57:11" (1/1) ... [2020-08-22 02:57:11,566 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:57:11" (1/1) ... [2020-08-22 02:57:11,567 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:57:11" (1/1) ... [2020-08-22 02:57:11,601 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:57:11" (1/1) ... [2020-08-22 02:57:11,612 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:57:11" (1/1) ... [2020-08-22 02:57:11,618 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:57:11" (1/1) ... [2020-08-22 02:57:11,626 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 02:57:11,627 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 02:57:11,627 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 02:57:11,627 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 02:57:11,628 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:57:11" (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 02:57:11,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 02:57:11,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 02:57:11,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-22 02:57:11,709 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-22 02:57:11,709 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-22 02:57:11,709 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-22 02:57:11,710 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-08-22 02:57:11,710 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-22 02:57:11,710 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-08-22 02:57:11,710 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-22 02:57:11,710 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-22 02:57:11,710 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-22 02:57:11,711 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-22 02:57:11,711 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-22 02:57:11,711 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-22 02:57:11,711 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-22 02:57:11,711 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-22 02:57:11,711 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-22 02:57:11,712 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-22 02:57:11,712 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-22 02:57:11,712 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-22 02:57:11,712 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 02:57:11,712 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-22 02:57:11,712 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-22 02:57:11,714 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-22 02:57:11,714 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-22 02:57:11,715 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-22 02:57:11,715 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-22 02:57:11,715 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-22 02:57:11,715 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-22 02:57:11,716 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-22 02:57:11,716 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-22 02:57:11,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-08-22 02:57:11,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-08-22 02:57:11,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-08-22 02:57:11,716 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-22 02:57:11,717 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-22 02:57:11,717 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-22 02:57:11,717 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-22 02:57:11,717 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-22 02:57:11,717 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-22 02:57:11,717 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-22 02:57:11,717 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 02:57:11,719 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 02:57:11,719 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-22 02:57:11,719 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-22 02:57:11,719 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-22 02:57:11,719 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-22 02:57:11,720 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-22 02:57:11,720 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-22 02:57:11,720 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-22 02:57:11,720 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-22 02:57:11,720 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-22 02:57:11,721 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-22 02:57:11,721 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-22 02:57:11,721 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-22 02:57:11,721 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-08-22 02:57:11,721 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-08-22 02:57:11,722 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-22 02:57:11,722 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-22 02:57:11,722 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-22 02:57:11,722 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-08-22 02:57:11,723 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-22 02:57:11,723 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-08-22 02:57:11,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 02:57:11,723 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-22 02:57:11,723 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-22 02:57:11,723 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-22 02:57:11,724 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-22 02:57:11,724 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-22 02:57:11,724 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-22 02:57:11,725 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-08-22 02:57:11,725 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-22 02:57:11,725 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-22 02:57:11,726 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-22 02:57:11,727 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-22 02:57:11,727 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 02:57:11,727 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-22 02:57:11,727 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 02:57:11,727 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 02:57:11,727 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-22 02:57:11,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 02:57:11,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 02:57:11,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 02:57:11,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 02:57:11,728 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-22 02:57:11,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 02:57:11,729 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-22 02:57:11,729 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-22 02:57:11,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 02:57:11,729 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-22 02:57:11,729 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-22 02:57:11,729 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-22 02:57:11,729 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-22 02:57:11,729 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-22 02:57:11,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 02:57:11,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 02:57:11,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 02:57:12,805 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 02:57:12,805 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-22 02:57:12,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 02:57:12 BoogieIcfgContainer [2020-08-22 02:57:12,815 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 02:57:12,817 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 02:57:12,817 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 02:57:12,822 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 02:57:12,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 02:57:10" (1/3) ... [2020-08-22 02:57:12,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ef7d7c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 02:57:12, skipping insertion in model container [2020-08-22 02:57:12,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:57:11" (2/3) ... [2020-08-22 02:57:12,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ef7d7c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 02:57:12, skipping insertion in model container [2020-08-22 02:57:12,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 02:57:12" (3/3) ... [2020-08-22 02:57:12,825 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product47.cil.c [2020-08-22 02:57:12,834 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 02:57:12,842 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 02:57:12,856 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 02:57:12,883 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 02:57:12,883 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 02:57:12,883 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 02:57:12,884 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 02:57:12,884 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 02:57:12,885 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 02:57:12,885 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 02:57:12,885 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 02:57:12,909 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states. [2020-08-22 02:57:12,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-08-22 02:57:12,920 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:57:12,922 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 02:57:12,922 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:57:12,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:57:12,929 INFO L82 PathProgramCache]: Analyzing trace with hash -981984858, now seen corresponding path program 1 times [2020-08-22 02:57:12,938 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:57:12,939 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1579663632] [2020-08-22 02:57:12,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:57:13,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:13,674 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 02:57:13,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:57:13,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:13,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 02:57:13,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:13,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 02:57:13,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:13,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 02:57:13,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:13,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 02:57:13,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:13,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 02:57:13,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:13,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 02:57:13,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:13,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:57:13,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:13,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-22 02:57:13,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:13,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 02:57:13,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:13,828 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 02:57:13,829 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1579663632] [2020-08-22 02:57:13,831 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 02:57:13,831 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 02:57:13,832 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946665813] [2020-08-22 02:57:13,838 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 02:57:13,838 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:57:13,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 02:57:13,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-22 02:57:13,857 INFO L87 Difference]: Start difference. First operand 192 states. Second operand 4 states. [2020-08-22 02:57:15,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:57:15,045 INFO L93 Difference]: Finished difference Result 330 states and 424 transitions. [2020-08-22 02:57:15,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-22 02:57:15,050 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-08-22 02:57:15,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:57:15,071 INFO L225 Difference]: With dead ends: 330 [2020-08-22 02:57:15,072 INFO L226 Difference]: Without dead ends: 182 [2020-08-22 02:57:15,077 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 02:57:15,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-08-22 02:57:15,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 149. [2020-08-22 02:57:15,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2020-08-22 02:57:15,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 176 transitions. [2020-08-22 02:57:15,173 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 176 transitions. Word has length 59 [2020-08-22 02:57:15,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:57:15,174 INFO L479 AbstractCegarLoop]: Abstraction has 149 states and 176 transitions. [2020-08-22 02:57:15,174 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 02:57:15,174 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 176 transitions. [2020-08-22 02:57:15,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-08-22 02:57:15,178 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:57:15,179 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 02:57:15,179 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 02:57:15,179 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:57:15,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:57:15,180 INFO L82 PathProgramCache]: Analyzing trace with hash 75711308, now seen corresponding path program 1 times [2020-08-22 02:57:15,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:57:15,180 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [906571636] [2020-08-22 02:57:15,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:57:15,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:15,542 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 02:57:15,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:57:15,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:15,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 02:57:15,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:15,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 02:57:15,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:15,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 02:57:15,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:15,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 02:57:15,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:15,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 02:57:15,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:15,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 02:57:15,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:15,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:57:15,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:15,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-22 02:57:15,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:15,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-22 02:57:15,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:15,702 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 02:57:15,703 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [906571636] [2020-08-22 02:57:15,703 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 02:57:15,704 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 02:57:15,704 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311142759] [2020-08-22 02:57:15,706 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 02:57:15,706 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:57:15,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 02:57:15,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-22 02:57:15,707 INFO L87 Difference]: Start difference. First operand 149 states and 176 transitions. Second operand 9 states. [2020-08-22 02:57:16,113 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 02:57:16,490 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 02:57:16,752 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 02:57:16,990 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 02:57:17,994 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 02:57:19,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:57:19,933 INFO L93 Difference]: Finished difference Result 506 states and 636 transitions. [2020-08-22 02:57:19,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-22 02:57:19,934 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 64 [2020-08-22 02:57:19,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:57:19,941 INFO L225 Difference]: With dead ends: 506 [2020-08-22 02:57:19,941 INFO L226 Difference]: Without dead ends: 385 [2020-08-22 02:57:19,944 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2020-08-22 02:57:19,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2020-08-22 02:57:20,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 327. [2020-08-22 02:57:20,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 327 states. [2020-08-22 02:57:20,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 402 transitions. [2020-08-22 02:57:20,033 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 402 transitions. Word has length 64 [2020-08-22 02:57:20,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:57:20,033 INFO L479 AbstractCegarLoop]: Abstraction has 327 states and 402 transitions. [2020-08-22 02:57:20,033 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 02:57:20,033 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 402 transitions. [2020-08-22 02:57:20,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-08-22 02:57:20,037 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:57:20,037 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 02:57:20,038 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 02:57:20,038 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:57:20,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:57:20,038 INFO L82 PathProgramCache]: Analyzing trace with hash -1055869647, now seen corresponding path program 1 times [2020-08-22 02:57:20,038 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:57:20,039 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [202810069] [2020-08-22 02:57:20,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:57:20,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:20,385 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 02:57:20,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:57:20,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:20,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 02:57:20,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:20,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 02:57:20,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:20,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 02:57:20,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:20,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 02:57:20,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:20,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 02:57:20,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:20,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 02:57:20,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:20,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-22 02:57:20,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:20,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:57:20,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:20,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-22 02:57:20,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:20,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-22 02:57:20,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:20,493 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 02:57:20,494 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [202810069] [2020-08-22 02:57:20,494 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 02:57:20,494 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 02:57:20,495 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593179111] [2020-08-22 02:57:20,495 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 02:57:20,495 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:57:20,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 02:57:20,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-22 02:57:20,496 INFO L87 Difference]: Start difference. First operand 327 states and 402 transitions. Second operand 9 states. [2020-08-22 02:57:20,865 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 02:57:21,466 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 02:57:22,518 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 02:57:22,771 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 02:57:23,081 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 02:57:23,373 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 02:57:24,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:57:24,305 INFO L93 Difference]: Finished difference Result 877 states and 1180 transitions. [2020-08-22 02:57:24,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-22 02:57:24,305 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2020-08-22 02:57:24,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:57:24,314 INFO L225 Difference]: With dead ends: 877 [2020-08-22 02:57:24,314 INFO L226 Difference]: Without dead ends: 578 [2020-08-22 02:57:24,319 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 02:57:24,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2020-08-22 02:57:24,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 488. [2020-08-22 02:57:24,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 488 states. [2020-08-22 02:57:24,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 609 transitions. [2020-08-22 02:57:24,427 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 609 transitions. Word has length 70 [2020-08-22 02:57:24,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:57:24,428 INFO L479 AbstractCegarLoop]: Abstraction has 488 states and 609 transitions. [2020-08-22 02:57:24,428 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 02:57:24,428 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 609 transitions. [2020-08-22 02:57:24,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-08-22 02:57:24,432 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:57:24,432 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] [2020-08-22 02:57:24,432 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 02:57:24,432 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:57:24,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:57:24,433 INFO L82 PathProgramCache]: Analyzing trace with hash -2082867985, now seen corresponding path program 1 times [2020-08-22 02:57:24,433 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:57:24,433 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1450786007] [2020-08-22 02:57:24,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:57:24,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:24,727 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 02:57:24,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:57:24,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:24,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 02:57:24,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:24,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 02:57:24,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:24,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 02:57:24,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:24,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 02:57:24,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:24,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 02:57:24,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:24,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 02:57:24,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:24,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:57:24,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:24,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-22 02:57:24,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:24,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:57:24,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:24,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:57:24,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:24,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:57:24,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:24,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 02:57:24,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:24,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:57:24,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:24,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:57:24,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:24,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 02:57:24,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:24,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-22 02:57:24,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:24,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-22 02:57:24,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:24,937 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 02:57:24,937 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1450786007] [2020-08-22 02:57:24,937 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 02:57:24,938 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 02:57:24,938 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588165635] [2020-08-22 02:57:24,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 02:57:24,939 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:57:24,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 02:57:24,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-22 02:57:24,940 INFO L87 Difference]: Start difference. First operand 488 states and 609 transitions. Second operand 9 states. [2020-08-22 02:57:25,349 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 02:57:26,341 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 02:57:26,681 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 02:57:26,987 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 02:57:27,249 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 02:57:28,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:57:28,832 INFO L93 Difference]: Finished difference Result 1509 states and 2131 transitions. [2020-08-22 02:57:28,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-22 02:57:28,833 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 107 [2020-08-22 02:57:28,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:57:28,842 INFO L225 Difference]: With dead ends: 1509 [2020-08-22 02:57:28,843 INFO L226 Difference]: Without dead ends: 1049 [2020-08-22 02:57:28,846 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2020-08-22 02:57:28,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1049 states. [2020-08-22 02:57:29,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1049 to 885. [2020-08-22 02:57:29,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 885 states. [2020-08-22 02:57:29,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 885 states to 885 states and 1121 transitions. [2020-08-22 02:57:29,091 INFO L78 Accepts]: Start accepts. Automaton has 885 states and 1121 transitions. Word has length 107 [2020-08-22 02:57:29,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:57:29,092 INFO L479 AbstractCegarLoop]: Abstraction has 885 states and 1121 transitions. [2020-08-22 02:57:29,092 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 02:57:29,092 INFO L276 IsEmpty]: Start isEmpty. Operand 885 states and 1121 transitions. [2020-08-22 02:57:29,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-08-22 02:57:29,099 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:57:29,100 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] [2020-08-22 02:57:29,100 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 02:57:29,100 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:57:29,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:57:29,101 INFO L82 PathProgramCache]: Analyzing trace with hash -1842327856, now seen corresponding path program 1 times [2020-08-22 02:57:29,104 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:57:29,104 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [834687876] [2020-08-22 02:57:29,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:57:29,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:29,418 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 02:57:29,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:57:29,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:29,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 02:57:29,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:29,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 02:57:29,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:29,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 02:57:29,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:29,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 02:57:29,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:29,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 02:57:29,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:29,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 02:57:29,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:29,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:57:29,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:29,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-22 02:57:29,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:29,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:57:29,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:29,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:57:29,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:29,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:57:29,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:29,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 02:57:29,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:29,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:57:29,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:29,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:57:29,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:29,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 02:57:29,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:29,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-22 02:57:29,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:29,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-22 02:57:29,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:29,603 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 02:57:29,603 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [834687876] [2020-08-22 02:57:29,604 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 02:57:29,604 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 02:57:29,604 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061279825] [2020-08-22 02:57:29,605 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 02:57:29,605 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:57:29,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 02:57:29,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-22 02:57:29,606 INFO L87 Difference]: Start difference. First operand 885 states and 1121 transitions. Second operand 9 states. [2020-08-22 02:57:30,554 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 02:57:30,823 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 02:57:31,121 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 02:57:31,366 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 02:57:32,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:57:32,376 INFO L93 Difference]: Finished difference Result 1913 states and 2626 transitions. [2020-08-22 02:57:32,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-22 02:57:32,377 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 107 [2020-08-22 02:57:32,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:57:32,389 INFO L225 Difference]: With dead ends: 1913 [2020-08-22 02:57:32,389 INFO L226 Difference]: Without dead ends: 1056 [2020-08-22 02:57:32,394 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 38 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 02:57:32,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1056 states. [2020-08-22 02:57:32,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1056 to 905. [2020-08-22 02:57:32,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 905 states. [2020-08-22 02:57:32,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1141 transitions. [2020-08-22 02:57:32,591 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1141 transitions. Word has length 107 [2020-08-22 02:57:32,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:57:32,592 INFO L479 AbstractCegarLoop]: Abstraction has 905 states and 1141 transitions. [2020-08-22 02:57:32,592 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 02:57:32,592 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1141 transitions. [2020-08-22 02:57:32,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-08-22 02:57:32,595 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:57:32,596 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] [2020-08-22 02:57:32,596 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 02:57:32,596 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:57:32,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:57:32,597 INFO L82 PathProgramCache]: Analyzing trace with hash 85944846, now seen corresponding path program 1 times [2020-08-22 02:57:32,597 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:57:32,597 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [645619177] [2020-08-22 02:57:32,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:57:32,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:32,912 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 02:57:32,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:57:32,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:32,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 02:57:32,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:32,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 02:57:32,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:32,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 02:57:32,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:32,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 02:57:32,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:32,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 02:57:32,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:32,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 02:57:32,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:32,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:57:32,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:32,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-22 02:57:32,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:32,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:57:33,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:33,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:57:33,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:33,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:57:33,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:33,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 02:57:33,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:33,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:57:33,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:33,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:57:33,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:33,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 02:57:33,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:33,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-22 02:57:33,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:33,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-22 02:57:33,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:33,091 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 02:57:33,091 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [645619177] [2020-08-22 02:57:33,093 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 02:57:33,093 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-22 02:57:33,094 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845621247] [2020-08-22 02:57:33,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-22 02:57:33,095 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:57:33,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-22 02:57:33,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-08-22 02:57:33,097 INFO L87 Difference]: Start difference. First operand 905 states and 1141 transitions. Second operand 11 states. [2020-08-22 02:57:33,571 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 02:57:33,827 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 02:57:34,060 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 02:57:34,850 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 02:57:35,094 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 02:57:35,326 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 02:57:36,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:57:36,450 INFO L93 Difference]: Finished difference Result 1702 states and 2268 transitions. [2020-08-22 02:57:36,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-22 02:57:36,451 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 107 [2020-08-22 02:57:36,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:57:36,458 INFO L225 Difference]: With dead ends: 1702 [2020-08-22 02:57:36,459 INFO L226 Difference]: Without dead ends: 797 [2020-08-22 02:57:36,464 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-08-22 02:57:36,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2020-08-22 02:57:36,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 697. [2020-08-22 02:57:36,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 697 states. [2020-08-22 02:57:36,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 843 transitions. [2020-08-22 02:57:36,638 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 843 transitions. Word has length 107 [2020-08-22 02:57:36,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:57:36,639 INFO L479 AbstractCegarLoop]: Abstraction has 697 states and 843 transitions. [2020-08-22 02:57:36,639 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-22 02:57:36,639 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 843 transitions. [2020-08-22 02:57:36,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-08-22 02:57:36,643 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:57:36,643 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] [2020-08-22 02:57:36,644 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 02:57:36,644 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:57:36,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:57:36,645 INFO L82 PathProgramCache]: Analyzing trace with hash 1945052595, now seen corresponding path program 1 times [2020-08-22 02:57:36,645 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:57:36,651 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [8055599] [2020-08-22 02:57:36,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:57:36,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:37,144 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 02:57:37,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:57:37,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:37,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 02:57:37,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:37,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 02:57:37,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:37,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 02:57:37,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:37,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 02:57:37,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:37,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 02:57:37,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:37,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 02:57:37,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:37,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-22 02:57:37,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:37,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:57:37,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:37,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-08-22 02:57:37,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:37,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:57:37,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:37,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:57:37,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:37,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:57:37,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:37,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 02:57:37,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:37,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:57:37,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:37,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:57:37,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:37,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 02:57:37,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:37,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-08-22 02:57:37,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:37,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-22 02:57:37,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:37,329 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 02:57:37,330 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [8055599] [2020-08-22 02:57:37,330 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 02:57:37,330 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-22 02:57:37,331 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514725124] [2020-08-22 02:57:37,331 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-22 02:57:37,332 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:57:37,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-22 02:57:37,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-08-22 02:57:37,332 INFO L87 Difference]: Start difference. First operand 697 states and 843 transitions. Second operand 12 states. [2020-08-22 02:57:37,752 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 02:57:38,387 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 02:57:39,032 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 02:57:39,355 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 02:57:39,594 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 02:57:39,856 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 02:57:40,120 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 02:57:42,105 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 02:57:42,401 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 02:57:43,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:57:43,338 INFO L93 Difference]: Finished difference Result 2212 states and 3039 transitions. [2020-08-22 02:57:43,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-08-22 02:57:43,339 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 111 [2020-08-22 02:57:43,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:57:43,352 INFO L225 Difference]: With dead ends: 2212 [2020-08-22 02:57:43,352 INFO L226 Difference]: Without dead ends: 1674 [2020-08-22 02:57:43,356 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2020-08-22 02:57:43,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1674 states. [2020-08-22 02:57:43,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1674 to 1447. [2020-08-22 02:57:43,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1447 states. [2020-08-22 02:57:43,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1447 states to 1447 states and 1761 transitions. [2020-08-22 02:57:43,630 INFO L78 Accepts]: Start accepts. Automaton has 1447 states and 1761 transitions. Word has length 111 [2020-08-22 02:57:43,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:57:43,631 INFO L479 AbstractCegarLoop]: Abstraction has 1447 states and 1761 transitions. [2020-08-22 02:57:43,631 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-22 02:57:43,631 INFO L276 IsEmpty]: Start isEmpty. Operand 1447 states and 1761 transitions. [2020-08-22 02:57:43,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-08-22 02:57:43,637 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:57:43,639 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:57:43,639 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-22 02:57:43,639 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:57:43,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:57:43,640 INFO L82 PathProgramCache]: Analyzing trace with hash -1487603991, now seen corresponding path program 1 times [2020-08-22 02:57:43,640 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:57:43,641 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1978832809] [2020-08-22 02:57:43,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:57:43,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:43,951 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 02:57:43,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:57:43,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:43,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 02:57:43,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:43,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 02:57:43,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:43,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 02:57:43,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:43,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 02:57:43,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:43,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 02:57:43,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:44,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 02:57:44,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:44,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-22 02:57:44,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:44,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:57:44,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:44,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:57:44,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:44,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 02:57:44,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:44,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:57:44,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:44,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:57:44,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:44,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:57:44,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:44,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 02:57:44,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:44,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 02:57:44,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:44,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:57:44,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:44,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-22 02:57:44,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:44,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:57:44,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:44,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:57:44,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:44,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 02:57:44,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:44,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:57:44,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:44,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:57:44,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:44,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:57:44,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:44,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 02:57:44,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:44,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:57:44,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:44,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:57:44,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:44,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 02:57:44,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:44,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-08-22 02:57:44,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:44,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:57:44,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:44,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-08-22 02:57:44,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:44,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:57:44,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:44,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-08-22 02:57:44,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:44,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-08-22 02:57:44,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:44,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:57:44,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:44,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:57:44,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:44,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 02:57:44,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:44,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:57:44,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:44,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-08-22 02:57:44,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:44,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-08-22 02:57:44,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:44,273 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 19 proven. 16 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-08-22 02:57:44,274 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1978832809] [2020-08-22 02:57:44,274 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 02:57:44,274 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-08-22 02:57:44,274 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894258818] [2020-08-22 02:57:44,275 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-08-22 02:57:44,275 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:57:44,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-08-22 02:57:44,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-08-22 02:57:44,276 INFO L87 Difference]: Start difference. First operand 1447 states and 1761 transitions. Second operand 14 states. [2020-08-22 02:57:45,129 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 02:57:45,366 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 02:57:45,594 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 02:57:46,556 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 02:57:46,811 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 02:57:47,070 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 02:57:47,316 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 02:57:48,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:57:48,455 INFO L93 Difference]: Finished difference Result 2877 states and 3721 transitions. [2020-08-22 02:57:48,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-08-22 02:57:48,456 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 220 [2020-08-22 02:57:48,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:57:48,468 INFO L225 Difference]: With dead ends: 2877 [2020-08-22 02:57:48,468 INFO L226 Difference]: Without dead ends: 1634 [2020-08-22 02:57:48,474 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 84 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=136, Invalid=464, Unknown=0, NotChecked=0, Total=600 [2020-08-22 02:57:48,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1634 states. [2020-08-22 02:57:48,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1634 to 1441. [2020-08-22 02:57:48,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1441 states. [2020-08-22 02:57:48,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1441 states to 1441 states and 1751 transitions. [2020-08-22 02:57:48,773 INFO L78 Accepts]: Start accepts. Automaton has 1441 states and 1751 transitions. Word has length 220 [2020-08-22 02:57:48,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:57:48,775 INFO L479 AbstractCegarLoop]: Abstraction has 1441 states and 1751 transitions. [2020-08-22 02:57:48,775 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-08-22 02:57:48,776 INFO L276 IsEmpty]: Start isEmpty. Operand 1441 states and 1751 transitions. [2020-08-22 02:57:48,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-08-22 02:57:48,782 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:57:48,783 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:57:48,783 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-22 02:57:48,783 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:57:48,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:57:48,784 INFO L82 PathProgramCache]: Analyzing trace with hash -451795391, now seen corresponding path program 1 times [2020-08-22 02:57:48,784 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:57:48,785 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1741335043] [2020-08-22 02:57:48,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:57:48,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:49,111 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 02:57:49,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:57:49,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:49,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 02:57:49,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:49,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 02:57:49,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:49,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 02:57:49,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:49,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 02:57:49,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:49,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 02:57:49,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:49,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 02:57:49,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:49,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-22 02:57:49,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:49,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:57:49,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:49,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:57:49,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:49,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 02:57:49,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:49,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:57:49,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:49,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:57:49,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:49,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:57:49,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:49,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 02:57:49,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:49,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:57:49,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:49,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:57:49,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:49,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 02:57:49,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:49,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-08-22 02:57:49,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:49,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:57:49,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:49,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-08-22 02:57:49,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:49,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:57:49,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:49,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-08-22 02:57:49,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:49,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-08-22 02:57:49,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:49,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:57:49,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:49,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:57:49,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:49,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 02:57:49,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:49,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:57:49,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:49,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-08-22 02:57:49,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:49,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-08-22 02:57:49,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:57:49,454 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 21 proven. 8 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-08-22 02:57:49,454 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1741335043] [2020-08-22 02:57:49,454 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 02:57:49,455 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-22 02:57:49,455 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845979958] [2020-08-22 02:57:49,456 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-22 02:57:49,456 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:57:49,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-22 02:57:49,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-08-22 02:57:49,457 INFO L87 Difference]: Start difference. First operand 1441 states and 1751 transitions. Second operand 16 states. [2020-08-22 02:57:50,181 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 02:57:50,503 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-08-22 02:57:50,763 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-22 02:57:51,021 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-22 02:57:51,714 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-08-22 02:57:51,972 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-08-22 02:57:52,309 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 02:57:52,783 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-08-22 02:57:53,067 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-08-22 02:57:54,435 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 02:57:55,179 WARN L193 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-08-22 02:57:55,699 WARN L193 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 193 [2020-08-22 02:57:56,155 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 02:57:56,765 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 02:57:57,177 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-08-22 02:57:57,844 WARN L193 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 194 [2020-08-22 02:57:58,454 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-08-22 02:57:58,889 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 02:57:59,426 WARN L193 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 195 [2020-08-22 02:58:01,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:58:01,273 INFO L93 Difference]: Finished difference Result 3256 states and 4210 transitions. [2020-08-22 02:58:01,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2020-08-22 02:58:01,273 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 170 [2020-08-22 02:58:01,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:58:01,286 INFO L225 Difference]: With dead ends: 3256 [2020-08-22 02:58:01,287 INFO L226 Difference]: Without dead ends: 2019 [2020-08-22 02:58:01,294 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1100 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=783, Invalid=3123, Unknown=0, NotChecked=0, Total=3906 [2020-08-22 02:58:01,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2019 states. [2020-08-22 02:58:01,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2019 to 1735. [2020-08-22 02:58:01,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1735 states. [2020-08-22 02:58:01,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1735 states to 1735 states and 2097 transitions. [2020-08-22 02:58:01,567 INFO L78 Accepts]: Start accepts. Automaton has 1735 states and 2097 transitions. Word has length 170 [2020-08-22 02:58:01,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:58:01,570 INFO L479 AbstractCegarLoop]: Abstraction has 1735 states and 2097 transitions. [2020-08-22 02:58:01,570 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-22 02:58:01,570 INFO L276 IsEmpty]: Start isEmpty. Operand 1735 states and 2097 transitions. [2020-08-22 02:58:01,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2020-08-22 02:58:01,580 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:58:01,580 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, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:58:01,580 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-22 02:58:01,581 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:58:01,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:58:01,581 INFO L82 PathProgramCache]: Analyzing trace with hash 741890932, now seen corresponding path program 1 times [2020-08-22 02:58:01,582 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:58:01,582 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1460653393] [2020-08-22 02:58:01,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:58:01,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:58:01,892 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 02:58:01,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:58:01,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:58:01,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 02:58:01,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:58:01,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 02:58:01,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:58:01,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 02:58:01,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:58:01,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 02:58:01,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:58:01,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 02:58:01,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:58:01,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 02:58:01,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:58:01,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-22 02:58:01,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:58:01,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:58:01,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:58:01,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:58:01,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:58:01,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 02:58:01,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:58:01,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:58:01,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:58:01,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:58:01,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:58:01,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:58:01,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:58:01,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 02:58:01,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:58:01,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:58:01,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:58:01,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:58:01,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:58:01,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 02:58:01,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:58:01,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-08-22 02:58:02,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:58:02,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:58:02,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:58:02,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-08-22 02:58:02,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:58:02,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:58:02,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:58:02,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:58:02,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:58:02,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 02:58:02,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:58:02,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 02:58:02,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:58:02,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:58:02,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:58:02,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:58:02,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:58:02,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 02:58:02,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:58:02,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:58:02,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:58:02,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-22 02:58:02,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:58:02,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:58:02,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:58:02,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-22 02:58:02,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:58:02,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:58:02,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:58:02,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:58:02,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:58:02,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 02:58:02,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:58:02,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 02:58:02,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:58:02,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:58:02,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:58:02,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:58:02,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:58:02,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 02:58:02,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:58:02,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-22 02:58:02,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:58:02,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:58:02,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:58:02,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-08-22 02:58:02,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:58:02,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:58:02,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:58:02,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2020-08-22 02:58:02,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:58:02,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:58:02,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:58:02,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 02:58:02,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:58:02,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:58:02,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:58:02,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 02:58:02,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:58:02,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:58:02,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:58:02,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:58:02,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:58:02,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 02:58:02,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:58:02,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2020-08-22 02:58:02,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:58:02,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2020-08-22 02:58:02,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:58:02,333 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 62 proven. 31 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2020-08-22 02:58:02,340 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1460653393] [2020-08-22 02:58:02,341 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 02:58:02,341 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-08-22 02:58:02,341 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440836149] [2020-08-22 02:58:02,342 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-08-22 02:58:02,342 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:58:02,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-08-22 02:58:02,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2020-08-22 02:58:02,343 INFO L87 Difference]: Start difference. First operand 1735 states and 2097 transitions. Second operand 15 states. [2020-08-22 02:58:03,873 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 02:58:04,119 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 02:58:04,392 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 02:58:04,662 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 02:58:04,911 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 02:58:05,782 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 02:58:06,353 WARN L193 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-08-22 02:58:06,878 WARN L193 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-08-22 02:58:07,366 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 191