/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=5 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.1 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product62.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-19 03:30:22,615 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 03:30:22,617 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 03:30:22,644 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 03:30:22,645 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 03:30:22,646 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 03:30:22,647 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 03:30:22,649 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 03:30:22,651 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 03:30:22,651 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 03:30:22,652 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 03:30:22,653 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 03:30:22,654 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 03:30:22,655 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 03:30:22,656 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 03:30:22,657 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 03:30:22,658 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 03:30:22,659 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 03:30:22,660 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 03:30:22,662 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 03:30:22,663 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 03:30:22,664 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 03:30:22,666 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 03:30:22,666 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 03:30:22,669 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-19 03:30:22,669 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-19 03:30:22,670 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-19 03:30:22,670 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-19 03:30:22,671 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-19 03:30:22,672 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-19 03:30:22,672 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-19 03:30:22,673 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-19 03:30:22,674 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-19 03:30:22,674 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-19 03:30:22,675 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-19 03:30:22,675 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-19 03:30:22,676 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-19 03:30:22,676 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-19 03:30:22,677 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 03:30:22,677 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 03:30:22,678 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 03:30:22,679 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 [2020-08-19 03:30:22,707 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 03:30:22,708 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 03:30:22,709 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 03:30:22,709 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 03:30:22,710 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 03:30:22,710 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 03:30:22,710 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 03:30:22,710 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 03:30:22,710 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 03:30:22,711 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 03:30:22,711 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 03:30:22,711 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 03:30:22,711 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 03:30:22,711 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 03:30:22,711 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 03:30:22,712 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 03:30:22,712 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 03:30:22,712 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 03:30:22,712 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 03:30:22,713 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 03:30:22,713 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 03:30:22,713 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 03:30:22,713 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 03:30:22,713 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 03:30:22,714 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 03:30:22,714 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 03:30:22,714 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 03:30:22,714 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 03:30:22,714 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 03:30:22,715 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=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1; [2020-08-19 03:30:23,024 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 03:30:23,036 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 03:30:23,039 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 03:30:23,041 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 03:30:23,041 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 03:30:23,042 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product62.cil.c [2020-08-19 03:30:23,122 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c5de78909/2a82437c12d34db4abaccbff71718957/FLAG1ebd879e7 [2020-08-19 03:30:23,717 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 03:30:23,718 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product62.cil.c [2020-08-19 03:30:23,743 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c5de78909/2a82437c12d34db4abaccbff71718957/FLAG1ebd879e7 [2020-08-19 03:30:23,969 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c5de78909/2a82437c12d34db4abaccbff71718957 [2020-08-19 03:30:23,979 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 03:30:23,981 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 03:30:23,984 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 03:30:23,984 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 03:30:23,987 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 03:30:23,988 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 03:30:23" (1/1) ... [2020-08-19 03:30:23,992 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@156a129e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:30:23, skipping insertion in model container [2020-08-19 03:30:23,992 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 03:30:23" (1/1) ... [2020-08-19 03:30:24,001 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 03:30:24,062 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 03:30:24,411 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 03:30:24,511 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 03:30:24,597 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 03:30:24,640 INFO L208 MainTranslator]: Completed translation [2020-08-19 03:30:24,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:30:24 WrapperNode [2020-08-19 03:30:24,640 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 03:30:24,641 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 03:30:24,641 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 03:30:24,641 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 03:30:24,653 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:30:24" (1/1) ... [2020-08-19 03:30:24,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:30:24" (1/1) ... [2020-08-19 03:30:24,672 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:30:24" (1/1) ... [2020-08-19 03:30:24,672 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:30:24" (1/1) ... [2020-08-19 03:30:24,706 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:30:24" (1/1) ... [2020-08-19 03:30:24,716 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:30:24" (1/1) ... [2020-08-19 03:30:24,722 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:30:24" (1/1) ... [2020-08-19 03:30:24,730 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 03:30:24,731 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 03:30:24,731 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 03:30:24,731 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 03:30:24,732 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:30:24" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 03:30:24,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 03:30:24,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 03:30:24,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-19 03:30:24,811 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-19 03:30:24,811 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-19 03:30:24,811 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-08-19 03:30:24,812 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-08-19 03:30:24,812 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-19 03:30:24,812 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-08-19 03:30:24,813 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-19 03:30:24,813 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-19 03:30:24,814 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-19 03:30:24,814 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-19 03:30:24,814 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-19 03:30:24,814 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-19 03:30:24,815 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-08-19 03:30:24,815 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-08-19 03:30:24,815 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-08-19 03:30:24,815 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-08-19 03:30:24,816 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-08-19 03:30:24,816 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-19 03:30:24,816 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-19 03:30:24,816 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-19 03:30:24,816 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-19 03:30:24,816 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-19 03:30:24,817 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-19 03:30:24,817 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-19 03:30:24,818 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-19 03:30:24,818 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-19 03:30:24,818 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-19 03:30:24,818 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-19 03:30:24,818 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-19 03:30:24,818 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-19 03:30:24,819 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-19 03:30:24,819 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-08-19 03:30:24,819 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-19 03:30:24,819 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-19 03:30:24,819 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-19 03:30:24,819 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-19 03:30:24,820 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 03:30:24,820 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-19 03:30:24,820 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-19 03:30:24,820 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-19 03:30:24,820 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-19 03:30:24,820 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-19 03:30:24,821 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 03:30:24,821 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-19 03:30:24,821 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-19 03:30:24,821 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-19 03:30:24,821 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-19 03:30:24,821 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-19 03:30:24,821 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-19 03:30:24,822 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-08-19 03:30:24,822 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-19 03:30:24,822 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-19 03:30:24,822 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-19 03:30:24,823 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-19 03:30:24,823 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-19 03:30:24,823 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-08-19 03:30:24,823 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-08-19 03:30:24,823 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-08-19 03:30:24,823 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-19 03:30:24,824 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-19 03:30:24,824 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-19 03:30:24,824 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-08-19 03:30:24,824 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-08-19 03:30:24,824 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-08-19 03:30:24,824 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-19 03:30:24,824 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-08-19 03:30:24,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-19 03:30:24,825 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-19 03:30:24,825 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-19 03:30:24,826 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-08-19 03:30:24,826 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-19 03:30:24,826 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-19 03:30:24,826 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-19 03:30:24,827 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-19 03:30:24,827 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-19 03:30:24,828 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-19 03:30:24,828 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-19 03:30:24,828 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-19 03:30:24,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-19 03:30:24,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-19 03:30:24,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-19 03:30:24,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-19 03:30:24,829 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-19 03:30:24,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-19 03:30:24,829 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-19 03:30:24,830 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-19 03:30:24,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-19 03:30:24,830 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-19 03:30:24,830 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-19 03:30:24,830 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-19 03:30:24,830 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-19 03:30:24,830 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-19 03:30:24,831 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-19 03:30:24,831 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-19 03:30:24,831 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-19 03:30:24,831 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-19 03:30:24,831 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 03:30:24,831 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-19 03:30:24,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 03:30:24,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-19 03:30:24,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 03:30:25,811 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 03:30:25,811 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-19 03:30:25,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 03:30:25 BoogieIcfgContainer [2020-08-19 03:30:25,817 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 03:30:25,818 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 03:30:25,818 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 03:30:25,821 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 03:30:25,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 03:30:23" (1/3) ... [2020-08-19 03:30:25,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a6152d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 03:30:25, skipping insertion in model container [2020-08-19 03:30:25,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:30:24" (2/3) ... [2020-08-19 03:30:25,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a6152d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 03:30:25, skipping insertion in model container [2020-08-19 03:30:25,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 03:30:25" (3/3) ... [2020-08-19 03:30:25,825 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product62.cil.c [2020-08-19 03:30:25,835 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 03:30:25,844 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 03:30:25,859 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 03:30:25,885 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 03:30:25,885 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 03:30:25,885 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 03:30:25,885 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 03:30:25,887 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 03:30:25,887 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 03:30:25,887 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 03:30:25,887 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 03:30:25,911 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states. [2020-08-19 03:30:25,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-08-19 03:30:25,922 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:30:25,924 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] [2020-08-19 03:30:25,924 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:30:25,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:30:25,931 INFO L82 PathProgramCache]: Analyzing trace with hash -1456889578, now seen corresponding path program 1 times [2020-08-19 03:30:25,940 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:30:25,940 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [488298918] [2020-08-19 03:30:25,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:30:26,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:26,631 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 03:30:26,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:30:26,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:26,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 03:30:26,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:26,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:30:26,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:26,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:30:26,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:26,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 03:30:26,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:26,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 03:30:26,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:26,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 03:30:26,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:26,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:30:26,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:26,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-19 03:30:26,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:26,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-19 03:30:26,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:26,734 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 03:30:26,735 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [488298918] [2020-08-19 03:30:26,738 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 03:30:26,738 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-19 03:30:26,739 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099605621] [2020-08-19 03:30:26,745 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-19 03:30:26,746 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 03:30:26,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-19 03:30:26,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-19 03:30:26,765 INFO L87 Difference]: Start difference. First operand 210 states. Second operand 4 states. [2020-08-19 03:30:28,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 03:30:28,023 INFO L93 Difference]: Finished difference Result 367 states and 468 transitions. [2020-08-19 03:30:28,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-19 03:30:28,025 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-08-19 03:30:28,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 03:30:28,040 INFO L225 Difference]: With dead ends: 367 [2020-08-19 03:30:28,040 INFO L226 Difference]: Without dead ends: 201 [2020-08-19 03:30:28,045 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 [2020-08-19 03:30:28,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2020-08-19 03:30:28,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 167. [2020-08-19 03:30:28,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-08-19 03:30:28,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 197 transitions. [2020-08-19 03:30:28,212 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 197 transitions. Word has length 59 [2020-08-19 03:30:28,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 03:30:28,213 INFO L479 AbstractCegarLoop]: Abstraction has 167 states and 197 transitions. [2020-08-19 03:30:28,213 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-19 03:30:28,213 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 197 transitions. [2020-08-19 03:30:28,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-08-19 03:30:28,217 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:30:28,218 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 03:30:28,218 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 03:30:28,218 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:30:28,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:30:28,219 INFO L82 PathProgramCache]: Analyzing trace with hash -1129690590, now seen corresponding path program 1 times [2020-08-19 03:30:28,219 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:30:28,219 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1880138245] [2020-08-19 03:30:28,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:30:28,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:28,542 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 03:30:28,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:30:28,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:28,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 03:30:28,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:28,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:30:28,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:28,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:30:28,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:28,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 03:30:28,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:28,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 03:30:28,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:28,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-19 03:30:28,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:28,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:30:28,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:28,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-19 03:30:28,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:28,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-08-19 03:30:28,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:28,645 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 03:30:28,646 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1880138245] [2020-08-19 03:30:28,646 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 03:30:28,646 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-19 03:30:28,647 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289297387] [2020-08-19 03:30:28,651 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-19 03:30:28,651 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 03:30:28,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-19 03:30:28,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-19 03:30:28,652 INFO L87 Difference]: Start difference. First operand 167 states and 197 transitions. Second operand 5 states. [2020-08-19 03:30:29,119 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 03:30:30,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 03:30:30,240 INFO L93 Difference]: Finished difference Result 308 states and 376 transitions. [2020-08-19 03:30:30,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-19 03:30:30,240 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2020-08-19 03:30:30,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 03:30:30,244 INFO L225 Difference]: With dead ends: 308 [2020-08-19 03:30:30,244 INFO L226 Difference]: Without dead ends: 191 [2020-08-19 03:30:30,246 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-19 03:30:30,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2020-08-19 03:30:30,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 158. [2020-08-19 03:30:30,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-08-19 03:30:30,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 185 transitions. [2020-08-19 03:30:30,287 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 185 transitions. Word has length 60 [2020-08-19 03:30:30,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 03:30:30,287 INFO L479 AbstractCegarLoop]: Abstraction has 158 states and 185 transitions. [2020-08-19 03:30:30,287 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-19 03:30:30,288 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 185 transitions. [2020-08-19 03:30:30,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-08-19 03:30:30,290 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:30:30,291 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] [2020-08-19 03:30:30,291 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 03:30:30,291 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:30:30,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:30:30,292 INFO L82 PathProgramCache]: Analyzing trace with hash -651026134, now seen corresponding path program 1 times [2020-08-19 03:30:30,292 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:30:30,292 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2138943780] [2020-08-19 03:30:30,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:30:30,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:30,633 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 03:30:30,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:30:30,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:30,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 03:30:30,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:30,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:30:30,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:30,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:30:30,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:30,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 03:30:30,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:30,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 03:30:30,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:30,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 03:30:30,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:30,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:30:30,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:30,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-19 03:30:30,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:30,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-19 03:30:30,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:30,796 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 03:30:30,797 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2138943780] [2020-08-19 03:30:30,797 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 03:30:30,797 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-19 03:30:30,798 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805421195] [2020-08-19 03:30:30,799 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 03:30:30,799 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 03:30:30,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 03:30:30,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-19 03:30:30,800 INFO L87 Difference]: Start difference. First operand 158 states and 185 transitions. Second operand 9 states. [2020-08-19 03:30:31,153 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 03:30:31,444 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 03:30:31,704 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 03:30:31,953 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 03:30:33,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 03:30:33,341 INFO L93 Difference]: Finished difference Result 321 states and 395 transitions. [2020-08-19 03:30:33,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-19 03:30:33,342 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 65 [2020-08-19 03:30:33,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 03:30:33,346 INFO L225 Difference]: With dead ends: 321 [2020-08-19 03:30:33,346 INFO L226 Difference]: Without dead ends: 191 [2020-08-19 03:30:33,348 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-08-19 03:30:33,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2020-08-19 03:30:33,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 158. [2020-08-19 03:30:33,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-08-19 03:30:33,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 184 transitions. [2020-08-19 03:30:33,387 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 184 transitions. Word has length 65 [2020-08-19 03:30:33,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 03:30:33,388 INFO L479 AbstractCegarLoop]: Abstraction has 158 states and 184 transitions. [2020-08-19 03:30:33,388 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 03:30:33,388 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 184 transitions. [2020-08-19 03:30:33,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-08-19 03:30:33,391 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:30:33,391 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] [2020-08-19 03:30:33,391 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-19 03:30:33,391 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:30:33,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:30:33,392 INFO L82 PathProgramCache]: Analyzing trace with hash 1717523051, now seen corresponding path program 1 times [2020-08-19 03:30:33,392 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:30:33,392 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [430514726] [2020-08-19 03:30:33,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:30:33,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:33,675 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 03:30:33,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:30:33,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:33,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 03:30:33,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:33,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:30:33,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:33,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:30:33,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:33,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 03:30:33,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:33,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 03:30:33,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:33,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 03:30:33,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:33,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:30:33,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:33,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-19 03:30:33,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:33,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:30:33,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:33,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:30:33,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:33,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:30:33,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:33,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-19 03:30:33,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:33,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-08-19 03:30:33,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:33,813 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 03:30:33,814 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [430514726] [2020-08-19 03:30:33,814 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 03:30:33,814 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-19 03:30:33,815 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330243997] [2020-08-19 03:30:33,815 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-19 03:30:33,815 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 03:30:33,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-19 03:30:33,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-19 03:30:33,816 INFO L87 Difference]: Start difference. First operand 158 states and 184 transitions. Second operand 7 states. [2020-08-19 03:30:34,131 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 03:30:35,726 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 03:30:36,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 03:30:36,392 INFO L93 Difference]: Finished difference Result 439 states and 543 transitions. [2020-08-19 03:30:36,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-19 03:30:36,397 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 83 [2020-08-19 03:30:36,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 03:30:36,401 INFO L225 Difference]: With dead ends: 439 [2020-08-19 03:30:36,401 INFO L226 Difference]: Without dead ends: 309 [2020-08-19 03:30:36,403 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-08-19 03:30:36,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2020-08-19 03:30:36,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 263. [2020-08-19 03:30:36,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2020-08-19 03:30:36,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 298 transitions. [2020-08-19 03:30:36,459 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 298 transitions. Word has length 83 [2020-08-19 03:30:36,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 03:30:36,460 INFO L479 AbstractCegarLoop]: Abstraction has 263 states and 298 transitions. [2020-08-19 03:30:36,460 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-19 03:30:36,460 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 298 transitions. [2020-08-19 03:30:36,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-08-19 03:30:36,462 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:30:36,463 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] [2020-08-19 03:30:36,463 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-19 03:30:36,463 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:30:36,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:30:36,463 INFO L82 PathProgramCache]: Analyzing trace with hash 119397721, now seen corresponding path program 1 times [2020-08-19 03:30:36,464 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:30:36,464 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1811985955] [2020-08-19 03:30:36,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:30:36,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:36,756 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 03:30:36,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:30:36,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:36,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 03:30:36,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:36,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:30:36,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:36,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:30:36,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:36,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 03:30:36,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:36,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 03:30:36,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:36,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 03:30:36,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:36,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:30:36,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:36,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-19 03:30:36,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:36,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:30:36,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:36,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:30:36,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:36,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:30:36,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:36,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:30:36,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:36,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 03:30:36,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:36,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-19 03:30:36,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:36,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-08-19 03:30:36,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:36,893 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-19 03:30:36,893 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1811985955] [2020-08-19 03:30:36,893 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 03:30:36,893 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-19 03:30:36,894 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911513884] [2020-08-19 03:30:36,894 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 03:30:36,895 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 03:30:36,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 03:30:36,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-19 03:30:36,895 INFO L87 Difference]: Start difference. First operand 263 states and 298 transitions. Second operand 9 states. [2020-08-19 03:30:37,283 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 03:30:37,928 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 03:30:38,843 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 03:30:39,097 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 03:30:39,506 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 03:30:39,730 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 03:30:40,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 03:30:40,363 INFO L93 Difference]: Finished difference Result 543 states and 648 transitions. [2020-08-19 03:30:40,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-19 03:30:40,364 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2020-08-19 03:30:40,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 03:30:40,369 INFO L225 Difference]: With dead ends: 543 [2020-08-19 03:30:40,369 INFO L226 Difference]: Without dead ends: 308 [2020-08-19 03:30:40,371 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-08-19 03:30:40,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2020-08-19 03:30:40,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 262. [2020-08-19 03:30:40,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-08-19 03:30:40,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 295 transitions. [2020-08-19 03:30:40,429 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 295 transitions. Word has length 97 [2020-08-19 03:30:40,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 03:30:40,429 INFO L479 AbstractCegarLoop]: Abstraction has 262 states and 295 transitions. [2020-08-19 03:30:40,430 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 03:30:40,430 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 295 transitions. [2020-08-19 03:30:40,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-08-19 03:30:40,432 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:30:40,432 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, 1, 1, 1, 1, 1, 1] [2020-08-19 03:30:40,432 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-19 03:30:40,432 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:30:40,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:30:40,433 INFO L82 PathProgramCache]: Analyzing trace with hash 299468705, now seen corresponding path program 1 times [2020-08-19 03:30:40,433 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:30:40,433 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [795607770] [2020-08-19 03:30:40,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:30:40,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:40,699 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 03:30:40,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:30:40,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:40,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 03:30:40,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:40,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:30:40,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:40,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:30:40,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:40,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 03:30:40,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:40,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 03:30:40,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:40,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 03:30:40,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:40,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:30:40,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:40,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-19 03:30:40,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:40,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:30:40,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:40,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:30:40,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:40,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:30:40,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:40,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:30:40,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:40,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 03:30:40,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:40,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:30:40,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:40,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:30:40,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:40,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:30:40,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:40,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-19 03:30:40,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:40,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-19 03:30:40,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:40,869 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 03:30:40,870 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [795607770] [2020-08-19 03:30:40,871 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 03:30:40,871 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-19 03:30:40,872 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595752555] [2020-08-19 03:30:40,873 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 03:30:40,873 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 03:30:40,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 03:30:40,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-19 03:30:40,875 INFO L87 Difference]: Start difference. First operand 262 states and 295 transitions. Second operand 9 states. [2020-08-19 03:30:41,786 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 03:30:42,048 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 03:30:42,283 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 03:30:42,513 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 03:30:43,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 03:30:43,372 INFO L93 Difference]: Finished difference Result 543 states and 653 transitions. [2020-08-19 03:30:43,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-19 03:30:43,373 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 113 [2020-08-19 03:30:43,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 03:30:43,377 INFO L225 Difference]: With dead ends: 543 [2020-08-19 03:30:43,378 INFO L226 Difference]: Without dead ends: 309 [2020-08-19 03:30:43,379 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-08-19 03:30:43,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2020-08-19 03:30:43,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 267. [2020-08-19 03:30:43,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2020-08-19 03:30:43,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 300 transitions. [2020-08-19 03:30:43,429 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 300 transitions. Word has length 113 [2020-08-19 03:30:43,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 03:30:43,429 INFO L479 AbstractCegarLoop]: Abstraction has 267 states and 300 transitions. [2020-08-19 03:30:43,429 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 03:30:43,429 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 300 transitions. [2020-08-19 03:30:43,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-08-19 03:30:43,431 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:30:43,431 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 03:30:43,432 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-19 03:30:43,432 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:30:43,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:30:43,432 INFO L82 PathProgramCache]: Analyzing trace with hash -2056336545, now seen corresponding path program 1 times [2020-08-19 03:30:43,432 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:30:43,433 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1555457451] [2020-08-19 03:30:43,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:30:43,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:43,740 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 03:30:43,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:30:43,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:43,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 03:30:43,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:43,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:30:43,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:43,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:30:43,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:43,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 03:30:43,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:43,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 03:30:43,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:43,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 03:30:43,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:43,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:30:43,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:43,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-19 03:30:43,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:43,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:30:43,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:43,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:30:43,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:43,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:30:43,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:43,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:30:43,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:43,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 03:30:43,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:43,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:30:43,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:43,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:30:43,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:43,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:30:43,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:43,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-19 03:30:43,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:43,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-19 03:30:43,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:43,910 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 03:30:43,910 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1555457451] [2020-08-19 03:30:43,910 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 03:30:43,911 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-19 03:30:43,911 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438144662] [2020-08-19 03:30:43,912 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-19 03:30:43,912 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 03:30:43,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-19 03:30:43,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-08-19 03:30:43,913 INFO L87 Difference]: Start difference. First operand 267 states and 300 transitions. Second operand 11 states. [2020-08-19 03:30:44,405 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 03:30:44,634 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 03:30:44,862 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 03:30:45,581 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 03:30:45,819 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 03:30:46,050 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 03:30:47,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 03:30:47,259 INFO L93 Difference]: Finished difference Result 553 states and 664 transitions. [2020-08-19 03:30:47,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-19 03:30:47,260 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 113 [2020-08-19 03:30:47,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 03:30:47,263 INFO L225 Difference]: With dead ends: 553 [2020-08-19 03:30:47,263 INFO L226 Difference]: Without dead ends: 314 [2020-08-19 03:30:47,265 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-08-19 03:30:47,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2020-08-19 03:30:47,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 271. [2020-08-19 03:30:47,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2020-08-19 03:30:47,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 304 transitions. [2020-08-19 03:30:47,338 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 304 transitions. Word has length 113 [2020-08-19 03:30:47,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 03:30:47,338 INFO L479 AbstractCegarLoop]: Abstraction has 271 states and 304 transitions. [2020-08-19 03:30:47,338 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-19 03:30:47,339 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 304 transitions. [2020-08-19 03:30:47,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-08-19 03:30:47,340 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:30:47,341 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 03:30:47,341 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-19 03:30:47,341 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:30:47,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:30:47,341 INFO L82 PathProgramCache]: Analyzing trace with hash -1287166530, now seen corresponding path program 1 times [2020-08-19 03:30:47,341 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:30:47,345 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [712855317] [2020-08-19 03:30:47,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:30:47,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:47,686 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 03:30:47,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:30:47,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:47,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 03:30:47,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:47,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:30:47,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:47,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:30:47,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:47,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 03:30:47,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:47,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 03:30:47,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:47,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 03:30:47,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:47,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:30:47,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:47,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-19 03:30:47,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:47,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:30:47,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:47,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:30:47,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:47,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:30:47,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:47,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:30:47,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:47,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 03:30:47,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:47,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:30:47,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:47,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:30:47,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:47,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:30:47,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:47,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-19 03:30:47,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:47,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-19 03:30:47,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:47,849 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 03:30:47,850 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [712855317] [2020-08-19 03:30:47,852 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 03:30:47,853 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-19 03:30:47,853 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713778832] [2020-08-19 03:30:47,854 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-19 03:30:47,854 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 03:30:47,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-19 03:30:47,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-19 03:30:47,854 INFO L87 Difference]: Start difference. First operand 271 states and 304 transitions. Second operand 7 states. [2020-08-19 03:30:48,329 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 03:30:49,037 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 03:30:51,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 03:30:51,172 INFO L93 Difference]: Finished difference Result 745 states and 915 transitions. [2020-08-19 03:30:51,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-19 03:30:51,173 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 113 [2020-08-19 03:30:51,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 03:30:51,178 INFO L225 Difference]: With dead ends: 745 [2020-08-19 03:30:51,178 INFO L226 Difference]: Without dead ends: 502 [2020-08-19 03:30:51,180 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 45 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-08-19 03:30:51,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2020-08-19 03:30:51,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 460. [2020-08-19 03:30:51,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 460 states. [2020-08-19 03:30:51,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 532 transitions. [2020-08-19 03:30:51,257 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 532 transitions. Word has length 113 [2020-08-19 03:30:51,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 03:30:51,258 INFO L479 AbstractCegarLoop]: Abstraction has 460 states and 532 transitions. [2020-08-19 03:30:51,258 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-19 03:30:51,258 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 532 transitions. [2020-08-19 03:30:51,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-08-19 03:30:51,260 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:30:51,260 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 03:30:51,260 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-19 03:30:51,261 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:30:51,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:30:51,261 INFO L82 PathProgramCache]: Analyzing trace with hash -803017404, now seen corresponding path program 1 times [2020-08-19 03:30:51,261 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:30:51,262 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1805851362] [2020-08-19 03:30:51,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:30:51,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:51,682 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 03:30:51,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:30:51,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:51,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 03:30:51,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:51,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:30:51,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:51,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:30:51,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:51,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 03:30:51,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:51,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 03:30:51,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:51,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 03:30:51,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:51,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-19 03:30:51,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:51,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:30:51,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:51,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-08-19 03:30:51,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:51,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:30:51,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:51,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:30:51,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:51,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:30:51,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:51,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:30:51,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:51,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 03:30:51,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:51,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:30:51,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:51,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:30:51,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:51,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:30:51,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:51,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-19 03:30:51,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:51,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-08-19 03:30:51,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:51,983 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 03:30:51,983 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1805851362] [2020-08-19 03:30:51,983 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 03:30:51,983 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-19 03:30:51,984 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812554996] [2020-08-19 03:30:51,984 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-19 03:30:51,984 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 03:30:51,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-19 03:30:51,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-08-19 03:30:52,004 INFO L87 Difference]: Start difference. First operand 460 states and 532 transitions. Second operand 12 states. [2020-08-19 03:30:52,390 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 03:30:53,069 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 03:30:54,220 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 03:30:54,541 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 03:30:54,790 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 03:30:55,061 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 03:30:55,350 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 03:30:56,702 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 03:30:56,979 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 03:30:57,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 03:30:57,918 INFO L93 Difference]: Finished difference Result 1281 states and 1569 transitions. [2020-08-19 03:30:57,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-08-19 03:30:57,919 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 117 [2020-08-19 03:30:57,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 03:30:57,926 INFO L225 Difference]: With dead ends: 1281 [2020-08-19 03:30:57,926 INFO L226 Difference]: Without dead ends: 928 [2020-08-19 03:30:57,930 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 345 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2020-08-19 03:30:57,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2020-08-19 03:30:58,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 803. [2020-08-19 03:30:58,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 803 states. [2020-08-19 03:30:58,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 919 transitions. [2020-08-19 03:30:58,158 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 919 transitions. Word has length 117 [2020-08-19 03:30:58,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 03:30:58,159 INFO L479 AbstractCegarLoop]: Abstraction has 803 states and 919 transitions. [2020-08-19 03:30:58,159 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-19 03:30:58,159 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 919 transitions. [2020-08-19 03:30:58,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-08-19 03:30:58,163 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:30:58,164 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 03:30:58,164 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-19 03:30:58,164 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:30:58,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:30:58,165 INFO L82 PathProgramCache]: Analyzing trace with hash -394036424, now seen corresponding path program 1 times [2020-08-19 03:30:58,165 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:30:58,165 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1665089753] [2020-08-19 03:30:58,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:30:58,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:58,599 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 03:30:58,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:30:58,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:58,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 03:30:58,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:58,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:30:58,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:58,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:30:58,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:58,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 03:30:58,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:58,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 03:30:58,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:58,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 03:30:58,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:58,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-19 03:30:58,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:58,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:30:58,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:58,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:30:58,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:58,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 03:30:58,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:58,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:30:58,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:58,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:30:58,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:58,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:30:58,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:58,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:30:58,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:58,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 03:30:58,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:58,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:30:58,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:58,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:30:58,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:58,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:30:58,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:58,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-08-19 03:30:58,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:58,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:30:58,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:58,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-19 03:30:58,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:58,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:30:58,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:58,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-19 03:30:58,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:58,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-08-19 03:30:58,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:58,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:30:58,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:58,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:30:58,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:58,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-19 03:30:58,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:58,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:30:58,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:58,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:30:58,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:58,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 03:30:58,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:58,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:30:58,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:58,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-08-19 03:30:58,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:58,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-08-19 03:30:58,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:30:59,034 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 22 proven. 10 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-08-19 03:30:59,035 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1665089753] [2020-08-19 03:30:59,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 03:30:59,036 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-19 03:30:59,036 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763638021] [2020-08-19 03:30:59,037 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-19 03:30:59,038 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 03:30:59,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-19 03:30:59,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-08-19 03:30:59,039 INFO L87 Difference]: Start difference. First operand 803 states and 919 transitions. Second operand 16 states. [2020-08-19 03:30:59,545 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-19 03:30:59,942 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-19 03:31:00,204 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-19 03:31:00,454 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-19 03:31:01,101 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-08-19 03:31:01,370 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-19 03:31:01,794 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-08-19 03:31:02,634 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-08-19 03:31:03,177 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 03:31:03,654 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-08-19 03:31:04,303 WARN L193 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-08-19 03:31:04,775 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 193 [2020-08-19 03:31:05,083 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 03:31:05,645 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 03:31:06,072 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-08-19 03:31:06,748 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-19 03:31:07,247 WARN L193 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 194 [2020-08-19 03:31:07,902 WARN L193 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 195 [2020-08-19 03:31:08,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 03:31:08,434 INFO L93 Difference]: Finished difference Result 1744 states and 2052 transitions. [2020-08-19 03:31:08,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2020-08-19 03:31:08,435 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 195 [2020-08-19 03:31:08,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 03:31:08,442 INFO L225 Difference]: With dead ends: 1744 [2020-08-19 03:31:08,442 INFO L226 Difference]: Without dead ends: 1044 [2020-08-19 03:31:08,447 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 765 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=618, Invalid=2462, Unknown=0, NotChecked=0, Total=3080 [2020-08-19 03:31:08,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2020-08-19 03:31:08,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 951. [2020-08-19 03:31:08,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 951 states. [2020-08-19 03:31:08,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 951 states to 951 states and 1097 transitions. [2020-08-19 03:31:08,628 INFO L78 Accepts]: Start accepts. Automaton has 951 states and 1097 transitions. Word has length 195 [2020-08-19 03:31:08,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 03:31:08,629 INFO L479 AbstractCegarLoop]: Abstraction has 951 states and 1097 transitions. [2020-08-19 03:31:08,629 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-19 03:31:08,629 INFO L276 IsEmpty]: Start isEmpty. Operand 951 states and 1097 transitions. [2020-08-19 03:31:08,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2020-08-19 03:31:08,637 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:31:08,638 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 03:31:08,638 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-19 03:31:08,638 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:31:08,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:31:08,639 INFO L82 PathProgramCache]: Analyzing trace with hash -604725475, now seen corresponding path program 1 times [2020-08-19 03:31:08,639 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:31:08,640 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2031107653] [2020-08-19 03:31:08,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:31:08,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,007 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 03:31:09,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:31:09,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 03:31:09,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:31:09,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:31:09,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 03:31:09,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 03:31:09,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 03:31:09,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-19 03:31:09,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:31:09,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:31:09,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 03:31:09,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:31:09,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:31:09,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:31:09,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:31:09,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 03:31:09,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:31:09,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:31:09,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:31:09,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-08-19 03:31:09,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:31:09,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-19 03:31:09,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:31:09,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:31:09,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:31:09,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-19 03:31:09,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:31:09,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:31:09,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-19 03:31:09,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:31:09,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:31:09,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 03:31:09,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:31:09,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-19 03:31:09,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:31:09,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-08-19 03:31:09,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:31:09,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:31:09,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:31:09,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-19 03:31:09,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:31:09,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:31:09,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-19 03:31:09,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-19 03:31:09,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:31:09,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2020-08-19 03:31:09,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:31:09,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2020-08-19 03:31:09,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:31:09,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:31:09,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:31:09,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:31:09,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 03:31:09,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:31:09,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:31:09,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:31:09,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2020-08-19 03:31:09,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2020-08-19 03:31:09,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:09,587 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 77 proven. 21 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2020-08-19 03:31:09,588 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2031107653] [2020-08-19 03:31:09,588 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 03:31:09,588 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-19 03:31:09,589 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436725323] [2020-08-19 03:31:09,590 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-19 03:31:09,590 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 03:31:09,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-19 03:31:09,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2020-08-19 03:31:09,593 INFO L87 Difference]: Start difference. First operand 951 states and 1097 transitions. Second operand 16 states. [2020-08-19 03:31:10,083 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 03:31:10,871 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 03:31:12,032 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 03:31:12,349 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 03:31:12,641 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 03:31:12,891 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 03:31:13,207 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 03:31:13,480 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 03:31:15,307 WARN L193 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-08-19 03:31:15,793 WARN L193 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-08-19 03:31:16,296 WARN L193 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 192 [2020-08-19 03:31:16,811 WARN L193 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 192 [2020-08-19 03:31:17,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 03:31:17,854 INFO L93 Difference]: Finished difference Result 2689 states and 3184 transitions. [2020-08-19 03:31:17,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-08-19 03:31:17,856 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 331 [2020-08-19 03:31:17,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 03:31:17,867 INFO L225 Difference]: With dead ends: 2689 [2020-08-19 03:31:17,867 INFO L226 Difference]: Without dead ends: 1774 [2020-08-19 03:31:17,871 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=376, Invalid=1346, Unknown=0, NotChecked=0, Total=1722 [2020-08-19 03:31:17,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1774 states. [2020-08-19 03:31:18,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1774 to 1728. [2020-08-19 03:31:18,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1728 states. [2020-08-19 03:31:18,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1728 states to 1728 states and 1964 transitions. [2020-08-19 03:31:18,216 INFO L78 Accepts]: Start accepts. Automaton has 1728 states and 1964 transitions. Word has length 331 [2020-08-19 03:31:18,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 03:31:18,219 INFO L479 AbstractCegarLoop]: Abstraction has 1728 states and 1964 transitions. [2020-08-19 03:31:18,220 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-19 03:31:18,220 INFO L276 IsEmpty]: Start isEmpty. Operand 1728 states and 1964 transitions. [2020-08-19 03:31:18,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2020-08-19 03:31:18,230 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:31:18,230 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 03:31:18,231 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-19 03:31:18,231 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:31:18,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:31:18,231 INFO L82 PathProgramCache]: Analyzing trace with hash 414679617, now seen corresponding path program 1 times [2020-08-19 03:31:18,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:31:18,232 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1435125336] [2020-08-19 03:31:18,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:31:18,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:18,616 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 03:31:18,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:31:18,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:18,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 03:31:18,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:18,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:31:18,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:18,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:31:18,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:18,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 03:31:18,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:18,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 03:31:18,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:18,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 03:31:18,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:18,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-19 03:31:18,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:18,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:31:18,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:18,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:31:18,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:18,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 03:31:18,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:18,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:31:18,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:18,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:31:18,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:18,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:31:18,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:18,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:31:18,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:18,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 03:31:18,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:18,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:31:18,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:18,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:31:18,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:18,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:31:18,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:18,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-08-19 03:31:18,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:18,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:31:18,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:18,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-19 03:31:18,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:18,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:31:18,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:18,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:31:18,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:18,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:31:18,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:18,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-19 03:31:18,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:18,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:31:18,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:18,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:31:18,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:18,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-19 03:31:18,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:18,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:31:18,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:18,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:31:18,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:18,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 03:31:18,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:18,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:31:18,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:18,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-19 03:31:18,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:18,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:31:18,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:18,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2020-08-19 03:31:18,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:18,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-08-19 03:31:18,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:18,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:31:18,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:18,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:31:18,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:18,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:31:18,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:18,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-19 03:31:18,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:18,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:31:18,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:18,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:31:18,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:18,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-19 03:31:18,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:18,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-19 03:31:18,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:18,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:31:18,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:18,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2020-08-19 03:31:18,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:18,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:31:18,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:18,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2020-08-19 03:31:18,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:18,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:31:18,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:18,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:31:18,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:18,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:31:18,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:18,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:31:18,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:18,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 03:31:18,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:18,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:31:18,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:19,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:31:19,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:19,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:31:19,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:19,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2020-08-19 03:31:19,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:19,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-08-19 03:31:19,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:19,174 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 92 proven. 3 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2020-08-19 03:31:19,174 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1435125336] [2020-08-19 03:31:19,175 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 03:31:19,175 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-08-19 03:31:19,175 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267390428] [2020-08-19 03:31:19,177 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-08-19 03:31:19,178 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 03:31:19,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-08-19 03:31:19,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2020-08-19 03:31:19,180 INFO L87 Difference]: Start difference. First operand 1728 states and 1964 transitions. Second operand 19 states. [2020-08-19 03:31:19,686 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 03:31:20,029 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 03:31:20,297 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 03:31:20,547 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 192