/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=0.2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product36.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-19 04:17:33,610 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 04:17:33,613 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 04:17:33,652 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 04:17:33,653 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 04:17:33,665 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 04:17:33,666 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 04:17:33,669 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 04:17:33,672 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 04:17:33,673 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 04:17:33,675 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 04:17:33,677 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 04:17:33,677 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 04:17:33,680 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 04:17:33,681 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 04:17:33,683 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 04:17:33,685 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 04:17:33,686 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 04:17:33,688 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 04:17:33,694 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 04:17:33,695 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 04:17:33,696 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 04:17:33,698 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 04:17:33,698 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 04:17:33,703 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-19 04:17:33,703 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-19 04:17:33,703 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-19 04:17:33,706 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-19 04:17:33,707 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-19 04:17:33,709 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-19 04:17:33,709 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-19 04:17:33,710 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-19 04:17:33,710 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-19 04:17:33,711 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-19 04:17:33,712 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-19 04:17:33,712 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-19 04:17:33,713 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-19 04:17:33,713 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-19 04:17:33,713 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 04:17:33,714 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 04:17:33,715 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 04:17:33,716 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 04:17:33,757 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 04:17:33,758 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 04:17:33,759 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 04:17:33,759 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 04:17:33,759 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 04:17:33,759 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 04:17:33,759 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 04:17:33,764 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 04:17:33,764 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 04:17:33,764 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 04:17:33,765 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 04:17:33,766 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 04:17:33,766 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 04:17:33,766 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 04:17:33,767 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 04:17:33,767 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 04:17:33,767 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 04:17:33,767 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 04:17:33,767 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 04:17:33,768 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 04:17:33,768 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 04:17:33,768 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 04:17:33,768 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 04:17:33,768 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 04:17:33,769 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 04:17:33,769 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 04:17:33,769 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 04:17:33,769 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 04:17:33,769 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 04:17:33,770 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=0.2; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2; [2020-08-19 04:17:34,067 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 04:17:34,089 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 04:17:34,093 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 04:17:34,095 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 04:17:34,095 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 04:17:34,096 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product36.cil.c [2020-08-19 04:17:34,171 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0ed773e03/a5d74395c4b64abb8035e6c4766c0650/FLAG92cbf4ee3 [2020-08-19 04:17:34,688 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 04:17:34,688 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product36.cil.c [2020-08-19 04:17:34,700 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0ed773e03/a5d74395c4b64abb8035e6c4766c0650/FLAG92cbf4ee3 [2020-08-19 04:17:35,003 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0ed773e03/a5d74395c4b64abb8035e6c4766c0650 [2020-08-19 04:17:35,012 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 04:17:35,014 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 04:17:35,015 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 04:17:35,015 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 04:17:35,018 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 04:17:35,019 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 04:17:35" (1/1) ... [2020-08-19 04:17:35,022 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@657b60e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:17:35, skipping insertion in model container [2020-08-19 04:17:35,022 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 04:17:35" (1/1) ... [2020-08-19 04:17:35,030 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 04:17:35,077 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 04:17:35,532 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 04:17:35,543 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 04:17:35,621 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 04:17:35,656 INFO L208 MainTranslator]: Completed translation [2020-08-19 04:17:35,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:17:35 WrapperNode [2020-08-19 04:17:35,657 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 04:17:35,658 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 04:17:35,658 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 04:17:35,658 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 04:17:35,672 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:17:35" (1/1) ... [2020-08-19 04:17:35,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:17:35" (1/1) ... [2020-08-19 04:17:35,697 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:17:35" (1/1) ... [2020-08-19 04:17:35,697 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:17:35" (1/1) ... [2020-08-19 04:17:35,754 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:17:35" (1/1) ... [2020-08-19 04:17:35,763 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:17:35" (1/1) ... [2020-08-19 04:17:35,768 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:17:35" (1/1) ... [2020-08-19 04:17:35,774 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 04:17:35,776 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 04:17:35,776 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 04:17:35,776 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 04:17:35,777 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:17:35" (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 04:17:35,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 04:17:35,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 04:17:35,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-19 04:17:35,836 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-19 04:17:35,843 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-19 04:17:35,844 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-19 04:17:35,844 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-19 04:17:35,844 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-19 04:17:35,844 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-19 04:17:35,845 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-19 04:17:35,845 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-19 04:17:35,845 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-19 04:17:35,845 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-19 04:17:35,845 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-19 04:17:35,846 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-19 04:17:35,846 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-19 04:17:35,846 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-19 04:17:35,846 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-19 04:17:35,846 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-08-19 04:17:35,846 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-19 04:17:35,846 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-19 04:17:35,847 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-19 04:17:35,848 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-19 04:17:35,848 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-19 04:17:35,848 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-19 04:17:35,848 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-19 04:17:35,848 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-19 04:17:35,848 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-19 04:17:35,849 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-19 04:17:35,850 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-19 04:17:35,850 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 04:17:35,850 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-08-19 04:17:35,850 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-08-19 04:17:35,850 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-08-19 04:17:35,850 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-19 04:17:35,850 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-19 04:17:35,851 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-19 04:17:35,851 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-19 04:17:35,851 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-19 04:17:35,851 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-19 04:17:35,851 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-19 04:17:35,851 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 04:17:35,852 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-19 04:17:35,852 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-19 04:17:35,852 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-19 04:17:35,852 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-19 04:17:35,852 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-19 04:17:35,852 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-19 04:17:35,852 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-19 04:17:35,853 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-19 04:17:35,853 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-19 04:17:35,853 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-19 04:17:35,853 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-19 04:17:35,853 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-19 04:17:35,854 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-19 04:17:35,854 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-19 04:17:35,854 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-19 04:17:35,854 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-19 04:17:35,854 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-19 04:17:35,855 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-08-19 04:17:35,855 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-08-19 04:17:35,855 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-08-19 04:17:35,855 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-19 04:17:35,855 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-19 04:17:35,855 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-19 04:17:35,855 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-19 04:17:35,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-19 04:17:35,856 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-19 04:17:35,856 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-19 04:17:35,856 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-19 04:17:35,856 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-19 04:17:35,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-19 04:17:35,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-19 04:17:35,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-19 04:17:35,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-19 04:17:35,858 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-19 04:17:35,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-19 04:17:35,859 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-19 04:17:35,859 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-19 04:17:35,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-19 04:17:35,860 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-19 04:17:35,860 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-19 04:17:35,861 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-19 04:17:35,861 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-19 04:17:35,861 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-19 04:17:35,861 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-19 04:17:35,862 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-19 04:17:35,862 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-19 04:17:35,862 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-19 04:17:35,862 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-08-19 04:17:35,862 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-19 04:17:35,862 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 04:17:35,862 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-19 04:17:35,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 04:17:35,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-19 04:17:35,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 04:17:36,845 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 04:17:36,846 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-19 04:17:36,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 04:17:36 BoogieIcfgContainer [2020-08-19 04:17:36,851 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 04:17:36,852 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 04:17:36,853 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 04:17:36,856 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 04:17:36,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 04:17:35" (1/3) ... [2020-08-19 04:17:36,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@660ef1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 04:17:36, skipping insertion in model container [2020-08-19 04:17:36,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:17:35" (2/3) ... [2020-08-19 04:17:36,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@660ef1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 04:17:36, skipping insertion in model container [2020-08-19 04:17:36,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 04:17:36" (3/3) ... [2020-08-19 04:17:36,860 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product36.cil.c [2020-08-19 04:17:36,873 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 04:17:36,881 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 04:17:36,898 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 04:17:36,925 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 04:17:36,925 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 04:17:36,925 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 04:17:36,925 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 04:17:36,926 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 04:17:36,926 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 04:17:36,926 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 04:17:36,926 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 04:17:36,950 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states. [2020-08-19 04:17:36,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-08-19 04:17:36,961 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:17:36,962 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 04:17:36,963 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:17:36,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:17:36,970 INFO L82 PathProgramCache]: Analyzing trace with hash 1424451371, now seen corresponding path program 1 times [2020-08-19 04:17:36,979 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:17:36,980 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1019158173] [2020-08-19 04:17:36,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:17:37,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:37,669 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 04:17:37,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:17:37,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:37,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 04:17:37,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:37,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:17:37,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:37,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:17:37,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:37,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:17:37,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:37,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 04:17:37,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:37,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 04:17:37,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:37,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:17:37,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:37,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-19 04:17:37,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:37,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-19 04:17:37,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:37,838 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 04:17:37,839 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1019158173] [2020-08-19 04:17:37,841 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:17:37,841 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-19 04:17:37,842 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111733138] [2020-08-19 04:17:37,849 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-19 04:17:37,850 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:17:37,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-19 04:17:37,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-19 04:17:37,868 INFO L87 Difference]: Start difference. First operand 171 states. Second operand 4 states. [2020-08-19 04:17:38,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:17:38,903 INFO L93 Difference]: Finished difference Result 286 states and 369 transitions. [2020-08-19 04:17:38,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-19 04:17:38,905 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-08-19 04:17:38,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:17:38,920 INFO L225 Difference]: With dead ends: 286 [2020-08-19 04:17:38,921 INFO L226 Difference]: Without dead ends: 159 [2020-08-19 04:17:38,926 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 04:17:38,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2020-08-19 04:17:39,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 128. [2020-08-19 04:17:39,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-08-19 04:17:39,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 149 transitions. [2020-08-19 04:17:39,021 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 149 transitions. Word has length 59 [2020-08-19 04:17:39,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:17:39,021 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 149 transitions. [2020-08-19 04:17:39,022 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-19 04:17:39,022 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 149 transitions. [2020-08-19 04:17:39,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-08-19 04:17:39,026 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:17:39,026 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 04:17:39,026 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 04:17:39,027 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:17:39,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:17:39,027 INFO L82 PathProgramCache]: Analyzing trace with hash -1343962066, now seen corresponding path program 1 times [2020-08-19 04:17:39,027 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:17:39,028 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [238015974] [2020-08-19 04:17:39,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:17:39,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:39,357 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 04:17:39,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:17:39,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:39,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 04:17:39,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:39,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:17:39,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:39,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:17:39,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:39,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:17:39,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:39,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 04:17:39,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:39,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-19 04:17:39,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:39,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:17:39,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:39,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-19 04:17:39,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:39,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-08-19 04:17:39,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:39,413 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 04:17:39,414 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [238015974] [2020-08-19 04:17:39,414 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:17:39,414 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-19 04:17:39,414 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317643972] [2020-08-19 04:17:39,416 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-19 04:17:39,416 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:17:39,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-19 04:17:39,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-19 04:17:39,417 INFO L87 Difference]: Start difference. First operand 128 states and 149 transitions. Second operand 5 states. [2020-08-19 04:17:39,842 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 04:17:40,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:17:40,659 INFO L93 Difference]: Finished difference Result 218 states and 267 transitions. [2020-08-19 04:17:40,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-19 04:17:40,660 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2020-08-19 04:17:40,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:17:40,666 INFO L225 Difference]: With dead ends: 218 [2020-08-19 04:17:40,667 INFO L226 Difference]: Without dead ends: 149 [2020-08-19 04:17:40,670 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-19 04:17:40,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2020-08-19 04:17:40,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 119. [2020-08-19 04:17:40,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-08-19 04:17:40,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 137 transitions. [2020-08-19 04:17:40,721 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 137 transitions. Word has length 60 [2020-08-19 04:17:40,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:17:40,722 INFO L479 AbstractCegarLoop]: Abstraction has 119 states and 137 transitions. [2020-08-19 04:17:40,722 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-19 04:17:40,722 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 137 transitions. [2020-08-19 04:17:40,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-08-19 04:17:40,728 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:17:40,728 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 04:17:40,729 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 04:17:40,729 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:17:40,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:17:40,729 INFO L82 PathProgramCache]: Analyzing trace with hash 1988567769, now seen corresponding path program 1 times [2020-08-19 04:17:40,730 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:17:40,730 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1279780521] [2020-08-19 04:17:40,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:17:40,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:41,137 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 04:17:41,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:17:41,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:41,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 04:17:41,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:41,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:17:41,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:41,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:17:41,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:41,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:17:41,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:41,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 04:17:41,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:41,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 04:17:41,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:41,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:17:41,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:41,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-19 04:17:41,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:41,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-19 04:17:41,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:41,253 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 04:17:41,253 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1279780521] [2020-08-19 04:17:41,254 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:17:41,254 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-19 04:17:41,254 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611122968] [2020-08-19 04:17:41,255 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 04:17:41,255 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:17:41,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 04:17:41,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-19 04:17:41,256 INFO L87 Difference]: Start difference. First operand 119 states and 137 transitions. Second operand 9 states. [2020-08-19 04:17:41,750 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 04:17:42,108 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 04:17:42,358 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 04:17:42,589 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 04:17:43,525 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 04:17:44,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:17:44,755 INFO L93 Difference]: Finished difference Result 402 states and 496 transitions. [2020-08-19 04:17:44,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-19 04:17:44,756 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 65 [2020-08-19 04:17:44,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:17:44,761 INFO L225 Difference]: With dead ends: 402 [2020-08-19 04:17:44,761 INFO L226 Difference]: Without dead ends: 311 [2020-08-19 04:17:44,763 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2020-08-19 04:17:44,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2020-08-19 04:17:44,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 242. [2020-08-19 04:17:44,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-08-19 04:17:44,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 290 transitions. [2020-08-19 04:17:44,829 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 290 transitions. Word has length 65 [2020-08-19 04:17:44,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:17:44,830 INFO L479 AbstractCegarLoop]: Abstraction has 242 states and 290 transitions. [2020-08-19 04:17:44,830 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 04:17:44,830 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 290 transitions. [2020-08-19 04:17:44,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-08-19 04:17:44,833 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:17:44,833 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 04:17:44,833 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-19 04:17:44,833 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:17:44,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:17:44,834 INFO L82 PathProgramCache]: Analyzing trace with hash 827482166, now seen corresponding path program 1 times [2020-08-19 04:17:44,834 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:17:44,834 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1059850306] [2020-08-19 04:17:44,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:17:44,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:45,182 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 04:17:45,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:17:45,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:45,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 04:17:45,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:45,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:17:45,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:45,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:17:45,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:45,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:17:45,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:45,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 04:17:45,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:45,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 04:17:45,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:45,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-19 04:17:45,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:45,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:17:45,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:45,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-19 04:17:45,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:45,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-19 04:17:45,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:45,281 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 04:17:45,282 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1059850306] [2020-08-19 04:17:45,282 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:17:45,282 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-19 04:17:45,282 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060526326] [2020-08-19 04:17:45,283 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 04:17:45,283 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:17:45,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 04:17:45,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-19 04:17:45,284 INFO L87 Difference]: Start difference. First operand 242 states and 290 transitions. Second operand 9 states. [2020-08-19 04:17:45,664 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 04:17:46,348 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 04:17:47,182 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 04:17:47,496 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 04:17:47,771 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 04:17:48,036 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 04:17:48,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:17:48,637 INFO L93 Difference]: Finished difference Result 631 states and 816 transitions. [2020-08-19 04:17:48,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-19 04:17:48,639 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2020-08-19 04:17:48,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:17:48,644 INFO L225 Difference]: With dead ends: 631 [2020-08-19 04:17:48,645 INFO L226 Difference]: Without dead ends: 417 [2020-08-19 04:17:48,647 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-08-19 04:17:48,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2020-08-19 04:17:48,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 353. [2020-08-19 04:17:48,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 353 states. [2020-08-19 04:17:48,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 423 transitions. [2020-08-19 04:17:48,736 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 423 transitions. Word has length 70 [2020-08-19 04:17:48,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:17:48,736 INFO L479 AbstractCegarLoop]: Abstraction has 353 states and 423 transitions. [2020-08-19 04:17:48,736 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 04:17:48,736 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 423 transitions. [2020-08-19 04:17:48,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-08-19 04:17:48,739 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:17:48,739 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] [2020-08-19 04:17:48,740 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-19 04:17:48,740 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:17:48,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:17:48,740 INFO L82 PathProgramCache]: Analyzing trace with hash 361073596, now seen corresponding path program 1 times [2020-08-19 04:17:48,740 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:17:48,741 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1641063061] [2020-08-19 04:17:48,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:17:48,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:49,050 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 04:17:49,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:17:49,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:49,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 04:17:49,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:49,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:17:49,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:49,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:17:49,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:49,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:17:49,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:49,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 04:17:49,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:49,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 04:17:49,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:49,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:17:49,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:49,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-19 04:17:49,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:49,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:17:49,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:49,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:17:49,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:49,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 04:17:49,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:49,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-19 04:17:49,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:49,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-08-19 04:17:49,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:49,222 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 04:17:49,223 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1641063061] [2020-08-19 04:17:49,223 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:17:49,223 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-19 04:17:49,224 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618073919] [2020-08-19 04:17:49,224 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 04:17:49,224 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:17:49,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 04:17:49,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-19 04:17:49,225 INFO L87 Difference]: Start difference. First operand 353 states and 423 transitions. Second operand 9 states. [2020-08-19 04:17:49,556 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 04:17:50,616 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 04:17:50,866 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 04:17:51,122 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 04:17:51,418 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 04:17:52,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:17:52,414 INFO L93 Difference]: Finished difference Result 1112 states and 1489 transitions. [2020-08-19 04:17:52,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-19 04:17:52,417 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 88 [2020-08-19 04:17:52,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:17:52,426 INFO L225 Difference]: With dead ends: 1112 [2020-08-19 04:17:52,426 INFO L226 Difference]: Without dead ends: 787 [2020-08-19 04:17:52,429 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2020-08-19 04:17:52,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2020-08-19 04:17:52,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 665. [2020-08-19 04:17:52,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 665 states. [2020-08-19 04:17:52,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 802 transitions. [2020-08-19 04:17:52,552 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 802 transitions. Word has length 88 [2020-08-19 04:17:52,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:17:52,553 INFO L479 AbstractCegarLoop]: Abstraction has 665 states and 802 transitions. [2020-08-19 04:17:52,553 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 04:17:52,553 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 802 transitions. [2020-08-19 04:17:52,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-08-19 04:17:52,556 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:17:52,556 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] [2020-08-19 04:17:52,556 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-19 04:17:52,557 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:17:52,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:17:52,557 INFO L82 PathProgramCache]: Analyzing trace with hash -1750216773, now seen corresponding path program 1 times [2020-08-19 04:17:52,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:17:52,557 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1949131932] [2020-08-19 04:17:52,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:17:52,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:52,853 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 04:17:52,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:17:52,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:52,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 04:17:52,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:52,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:17:52,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:52,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:17:52,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:52,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:17:52,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:52,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 04:17:52,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:52,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 04:17:52,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:52,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:17:52,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:52,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-19 04:17:52,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:52,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:17:52,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:52,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:17:52,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:52,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 04:17:52,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:52,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-19 04:17:52,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:52,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-08-19 04:17:52,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:52,997 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 04:17:52,998 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1949131932] [2020-08-19 04:17:52,998 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:17:52,998 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-19 04:17:52,998 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542864292] [2020-08-19 04:17:52,999 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 04:17:52,999 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:17:52,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 04:17:53,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-19 04:17:53,000 INFO L87 Difference]: Start difference. First operand 665 states and 802 transitions. Second operand 9 states. [2020-08-19 04:17:54,079 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 04:17:54,333 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-19 04:17:54,645 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 04:17:54,898 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 04:17:55,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:17:55,459 INFO L93 Difference]: Finished difference Result 1429 states and 1823 transitions. [2020-08-19 04:17:55,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-19 04:17:55,459 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 88 [2020-08-19 04:17:55,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:17:55,467 INFO L225 Difference]: With dead ends: 1429 [2020-08-19 04:17:55,467 INFO L226 Difference]: Without dead ends: 792 [2020-08-19 04:17:55,469 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-08-19 04:17:55,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 792 states. [2020-08-19 04:17:55,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 792 to 685. [2020-08-19 04:17:55,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 685 states. [2020-08-19 04:17:55,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 822 transitions. [2020-08-19 04:17:55,642 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 822 transitions. Word has length 88 [2020-08-19 04:17:55,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:17:55,643 INFO L479 AbstractCegarLoop]: Abstraction has 685 states and 822 transitions. [2020-08-19 04:17:55,643 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 04:17:55,643 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 822 transitions. [2020-08-19 04:17:55,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-08-19 04:17:55,651 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:17:55,651 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] [2020-08-19 04:17:55,651 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-19 04:17:55,652 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:17:55,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:17:55,652 INFO L82 PathProgramCache]: Analyzing trace with hash -364013379, now seen corresponding path program 1 times [2020-08-19 04:17:55,652 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:17:55,653 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [902417691] [2020-08-19 04:17:55,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:17:55,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:55,940 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 04:17:55,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:17:55,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:55,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 04:17:55,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:55,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:17:55,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:55,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:17:55,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:55,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:17:55,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:56,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 04:17:56,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:56,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 04:17:56,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:56,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:17:56,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:56,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-19 04:17:56,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:56,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:17:56,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:56,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:17:56,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:56,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 04:17:56,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:56,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-19 04:17:56,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:56,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-08-19 04:17:56,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:56,107 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 04:17:56,107 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [902417691] [2020-08-19 04:17:56,108 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:17:56,108 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-19 04:17:56,111 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144595584] [2020-08-19 04:17:56,111 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-19 04:17:56,112 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:17:56,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-19 04:17:56,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-08-19 04:17:56,114 INFO L87 Difference]: Start difference. First operand 685 states and 822 transitions. Second operand 11 states. [2020-08-19 04:17:56,575 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 04:17:56,806 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 04:17:57,036 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 04:17:57,770 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 04:17:58,056 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 04:17:58,306 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 04:17:58,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:17:58,901 INFO L93 Difference]: Finished difference Result 1290 states and 1630 transitions. [2020-08-19 04:17:58,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-19 04:17:58,902 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 88 [2020-08-19 04:17:58,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:17:58,909 INFO L225 Difference]: With dead ends: 1290 [2020-08-19 04:17:58,909 INFO L226 Difference]: Without dead ends: 633 [2020-08-19 04:17:58,913 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-08-19 04:17:58,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2020-08-19 04:17:59,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 556. [2020-08-19 04:17:59,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2020-08-19 04:17:59,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 650 transitions. [2020-08-19 04:17:59,026 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 650 transitions. Word has length 88 [2020-08-19 04:17:59,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:17:59,027 INFO L479 AbstractCegarLoop]: Abstraction has 556 states and 650 transitions. [2020-08-19 04:17:59,027 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-19 04:17:59,027 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 650 transitions. [2020-08-19 04:17:59,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-08-19 04:17:59,029 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:17:59,029 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] [2020-08-19 04:17:59,030 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-19 04:17:59,030 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:17:59,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:17:59,030 INFO L82 PathProgramCache]: Analyzing trace with hash -1797836392, now seen corresponding path program 1 times [2020-08-19 04:17:59,030 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:17:59,031 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [470783971] [2020-08-19 04:17:59,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:17:59,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:59,428 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 04:17:59,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:17:59,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:59,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 04:17:59,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:59,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:17:59,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:59,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:17:59,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:59,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:17:59,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:59,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 04:17:59,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:59,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 04:17:59,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:59,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-19 04:17:59,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:59,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:17:59,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:59,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-08-19 04:17:59,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:59,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:17:59,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:59,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:17:59,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:59,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 04:17:59,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:59,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-08-19 04:17:59,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:59,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-19 04:17:59,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:17:59,645 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 04:17:59,645 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [470783971] [2020-08-19 04:17:59,646 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:17:59,646 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-19 04:17:59,647 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067889089] [2020-08-19 04:17:59,648 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-19 04:17:59,649 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:17:59,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-19 04:17:59,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-08-19 04:17:59,650 INFO L87 Difference]: Start difference. First operand 556 states and 650 transitions. Second operand 12 states. [2020-08-19 04:18:00,265 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 04:18:01,079 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 04:18:01,786 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 04:18:02,101 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 04:18:02,351 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 04:18:02,654 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 04:18:02,933 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 04:18:04,449 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 04:18:04,869 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 04:18:05,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:18:05,413 INFO L93 Difference]: Finished difference Result 1629 states and 2065 transitions. [2020-08-19 04:18:05,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-08-19 04:18:05,414 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 92 [2020-08-19 04:18:05,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:18:05,424 INFO L225 Difference]: With dead ends: 1629 [2020-08-19 04:18:05,424 INFO L226 Difference]: Without dead ends: 1277 [2020-08-19 04:18:05,427 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 350 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2020-08-19 04:18:05,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1277 states. [2020-08-19 04:18:05,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1277 to 1157. [2020-08-19 04:18:05,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1157 states. [2020-08-19 04:18:05,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1355 transitions. [2020-08-19 04:18:05,628 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1355 transitions. Word has length 92 [2020-08-19 04:18:05,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:18:05,630 INFO L479 AbstractCegarLoop]: Abstraction has 1157 states and 1355 transitions. [2020-08-19 04:18:05,631 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-19 04:18:05,631 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1355 transitions. [2020-08-19 04:18:05,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-08-19 04:18:05,637 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:18:05,637 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:18:05,637 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-19 04:18:05,638 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:18:05,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:18:05,638 INFO L82 PathProgramCache]: Analyzing trace with hash -1966372220, now seen corresponding path program 1 times [2020-08-19 04:18:05,638 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:18:05,638 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [896689218] [2020-08-19 04:18:05,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:18:05,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:05,967 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 04:18:05,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:18:05,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:05,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 04:18:05,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:05,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:18:05,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:05,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:18:05,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:06,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:18:06,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:06,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 04:18:06,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:06,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 04:18:06,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:06,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-19 04:18:06,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:06,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:18:06,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:06,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:18:06,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:06,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 04:18:06,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:06,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:18:06,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:06,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:18:06,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:06,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 04:18:06,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:06,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-19 04:18:06,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:06,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:18:06,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:06,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-08-19 04:18:06,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:06,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:18:06,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:06,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-08-19 04:18:06,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:06,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-08-19 04:18:06,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:06,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:18:06,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:06,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-19 04:18:06,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:06,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-08-19 04:18:06,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:06,262 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 22 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-08-19 04:18:06,262 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [896689218] [2020-08-19 04:18:06,262 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 04:18:06,262 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-19 04:18:06,263 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320643812] [2020-08-19 04:18:06,263 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-19 04:18:06,263 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:18:06,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-19 04:18:06,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-08-19 04:18:06,264 INFO L87 Difference]: Start difference. First operand 1157 states and 1355 transitions. Second operand 16 states. [2020-08-19 04:18:06,766 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-19 04:18:07,120 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-08-19 04:18:07,396 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-19 04:18:07,658 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-19 04:18:08,345 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-08-19 04:18:08,726 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-08-19 04:18:09,039 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-19 04:18:09,470 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-08-19 04:18:09,822 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-08-19 04:18:10,797 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 04:18:11,857 WARN L193 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-08-19 04:18:12,374 WARN L193 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 193 [2020-08-19 04:18:12,712 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 04:18:13,446 WARN L193 SmtUtils]: Spent 468.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 194 [2020-08-19 04:18:14,432 WARN L193 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 195 [2020-08-19 04:18:14,671 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 04:18:14,946 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-08-19 04:18:15,209 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-19 04:18:15,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:18:15,935 INFO L93 Difference]: Finished difference Result 2376 states and 2878 transitions. [2020-08-19 04:18:15,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2020-08-19 04:18:15,936 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 136 [2020-08-19 04:18:15,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:18:15,944 INFO L225 Difference]: With dead ends: 2376 [2020-08-19 04:18:15,944 INFO L226 Difference]: Without dead ends: 1417 [2020-08-19 04:18:15,948 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 825 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=630, Invalid=2562, Unknown=0, NotChecked=0, Total=3192 [2020-08-19 04:18:15,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1417 states. [2020-08-19 04:18:16,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1417 to 1269. [2020-08-19 04:18:16,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1269 states. [2020-08-19 04:18:16,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1269 states to 1269 states and 1463 transitions. [2020-08-19 04:18:16,196 INFO L78 Accepts]: Start accepts. Automaton has 1269 states and 1463 transitions. Word has length 136 [2020-08-19 04:18:16,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:18:16,197 INFO L479 AbstractCegarLoop]: Abstraction has 1269 states and 1463 transitions. [2020-08-19 04:18:16,197 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-19 04:18:16,197 INFO L276 IsEmpty]: Start isEmpty. Operand 1269 states and 1463 transitions. [2020-08-19 04:18:16,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-08-19 04:18:16,203 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:18:16,203 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2020-08-19 04:18:16,203 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-19 04:18:16,203 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:18:16,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:18:16,204 INFO L82 PathProgramCache]: Analyzing trace with hash -1880321482, now seen corresponding path program 1 times [2020-08-19 04:18:16,204 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:18:16,205 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1376264429] [2020-08-19 04:18:16,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:18:16,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:16,546 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 04:18:16,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:18:16,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:16,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 04:18:16,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:16,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:18:16,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:16,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:18:16,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:16,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:18:16,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:16,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 04:18:16,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:16,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 04:18:16,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:16,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-19 04:18:16,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:16,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:18:16,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:16,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:18:16,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:16,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 04:18:16,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:16,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:18:16,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:16,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:18:16,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:16,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 04:18:16,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:16,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-19 04:18:16,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:16,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:18:16,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:16,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-08-19 04:18:16,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:16,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:18:16,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:16,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:18:16,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:16,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:18:16,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:16,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-19 04:18:16,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:16,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:18:16,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:16,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 04:18:16,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:16,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:18:16,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:16,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-08-19 04:18:16,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:16,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:18:16,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:16,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:18:16,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:16,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:18:16,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:16,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-19 04:18:16,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:16,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:18:16,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:16,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 04:18:16,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:16,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:18:16,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:16,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-08-19 04:18:16,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:16,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:18:16,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:16,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-08-19 04:18:16,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:16,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:18:16,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:16,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-08-19 04:18:16,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:16,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:18:16,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:16,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:18:16,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:16,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 04:18:16,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:16,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-08-19 04:18:16,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:16,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2020-08-19 04:18:16,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:16,921 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 81 proven. 31 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2020-08-19 04:18:16,922 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1376264429] [2020-08-19 04:18:16,922 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 04:18:16,922 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-19 04:18:16,922 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818452612] [2020-08-19 04:18:16,924 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-19 04:18:16,925 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:18:16,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-19 04:18:16,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2020-08-19 04:18:16,926 INFO L87 Difference]: Start difference. First operand 1269 states and 1463 transitions. Second operand 16 states. [2020-08-19 04:18:18,823 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 04:18:19,044 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 04:18:19,352 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 04:18:19,609 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 04:18:19,870 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 04:18:20,596 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 04:18:21,170 WARN L193 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-08-19 04:18:21,674 WARN L193 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-08-19 04:18:22,320 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 04:18:24,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:18:24,466 INFO L93 Difference]: Finished difference Result 3631 states and 4392 transitions. [2020-08-19 04:18:24,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-08-19 04:18:24,466 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 244 [2020-08-19 04:18:24,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:18:24,479 INFO L225 Difference]: With dead ends: 3631 [2020-08-19 04:18:24,479 INFO L226 Difference]: Without dead ends: 2241 [2020-08-19 04:18:24,484 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 100 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=449, Invalid=1807, Unknown=0, NotChecked=0, Total=2256 [2020-08-19 04:18:24,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2241 states. [2020-08-19 04:18:24,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2241 to 1858. [2020-08-19 04:18:24,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1858 states. [2020-08-19 04:18:24,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1858 states to 1858 states and 2154 transitions. [2020-08-19 04:18:24,869 INFO L78 Accepts]: Start accepts. Automaton has 1858 states and 2154 transitions. Word has length 244 [2020-08-19 04:18:24,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:18:24,872 INFO L479 AbstractCegarLoop]: Abstraction has 1858 states and 2154 transitions. [2020-08-19 04:18:24,872 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-19 04:18:24,873 INFO L276 IsEmpty]: Start isEmpty. Operand 1858 states and 2154 transitions. [2020-08-19 04:18:24,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2020-08-19 04:18:24,881 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:18:24,882 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 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, 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] [2020-08-19 04:18:24,882 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-19 04:18:24,882 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:18:24,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:18:24,883 INFO L82 PathProgramCache]: Analyzing trace with hash 1137238651, now seen corresponding path program 1 times [2020-08-19 04:18:24,883 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:18:24,883 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1589613188] [2020-08-19 04:18:24,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:18:24,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:25,195 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 04:18:25,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:18:25,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:25,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 04:18:25,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:25,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:18:25,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:25,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:18:25,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:25,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:18:25,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:25,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 04:18:25,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:25,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 04:18:25,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:25,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-19 04:18:25,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:25,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:18:25,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:25,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:18:25,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:25,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 04:18:25,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:25,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:18:25,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:25,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:18:25,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:25,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 04:18:25,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:25,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-19 04:18:25,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:25,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:18:25,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:25,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-08-19 04:18:25,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:25,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:18:25,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:25,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:18:25,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:25,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:18:25,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:25,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-19 04:18:25,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:25,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:18:25,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:25,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 04:18:25,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:25,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:18:25,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:25,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-19 04:18:25,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:25,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-08-19 04:18:25,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:25,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:18:25,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:25,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:18:25,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:25,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:18:25,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:25,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-19 04:18:25,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:25,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:18:25,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:25,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 04:18:25,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:25,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:18:25,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:25,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-08-19 04:18:25,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:25,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:18:25,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:25,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-08-19 04:18:25,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:25,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:18:25,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:25,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-08-19 04:18:25,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:25,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:18:25,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:25,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:18:25,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:25,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 04:18:25,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:25,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2020-08-19 04:18:25,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:25,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-08-19 04:18:25,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:25,584 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 90 proven. 31 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-08-19 04:18:25,584 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1589613188] [2020-08-19 04:18:25,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 04:18:25,584 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-08-19 04:18:25,585 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50977100] [2020-08-19 04:18:25,585 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-08-19 04:18:25,586 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:18:25,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-08-19 04:18:25,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2020-08-19 04:18:25,586 INFO L87 Difference]: Start difference. First operand 1858 states and 2154 transitions. Second operand 17 states. [2020-08-19 04:18:26,217 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 04:18:26,535 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-19 04:18:26,823 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 04:18:27,059 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 04:18:27,788 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 04:18:28,693 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 04:18:29,034 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 04:18:29,274 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 04:18:30,113 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 04:18:30,770 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 04:18:31,018 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 04:18:31,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:18:31,772 INFO L93 Difference]: Finished difference Result 3499 states and 4139 transitions. [2020-08-19 04:18:31,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-08-19 04:18:31,772 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 250 [2020-08-19 04:18:31,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:18:31,783 INFO L225 Difference]: With dead ends: 3499 [2020-08-19 04:18:31,783 INFO L226 Difference]: Without dead ends: 1909 [2020-08-19 04:18:31,789 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=385, Invalid=1507, Unknown=0, NotChecked=0, Total=1892 [2020-08-19 04:18:31,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1909 states. [2020-08-19 04:18:32,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1909 to 1807. [2020-08-19 04:18:32,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1807 states. [2020-08-19 04:18:32,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1807 states to 1807 states and 2067 transitions. [2020-08-19 04:18:32,157 INFO L78 Accepts]: Start accepts. Automaton has 1807 states and 2067 transitions. Word has length 250 [2020-08-19 04:18:32,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:18:32,158 INFO L479 AbstractCegarLoop]: Abstraction has 1807 states and 2067 transitions. [2020-08-19 04:18:32,158 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-08-19 04:18:32,158 INFO L276 IsEmpty]: Start isEmpty. Operand 1807 states and 2067 transitions. [2020-08-19 04:18:32,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2020-08-19 04:18:32,169 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:18:32,170 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 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, 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] [2020-08-19 04:18:32,170 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-19 04:18:32,170 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:18:32,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:18:32,171 INFO L82 PathProgramCache]: Analyzing trace with hash 507686355, now seen corresponding path program 1 times [2020-08-19 04:18:32,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:18:32,171 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1856505051] [2020-08-19 04:18:32,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:18:32,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:32,488 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 04:18:32,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:18:32,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:32,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 04:18:32,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:32,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:18:32,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:32,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:18:32,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:32,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:18:32,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:32,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 04:18:32,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:32,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 04:18:32,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:32,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-19 04:18:32,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:32,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:18:32,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:32,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:18:32,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:32,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 04:18:32,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:32,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:18:32,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:32,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:18:32,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:32,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 04:18:32,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:32,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-19 04:18:32,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:32,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:18:32,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:32,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-08-19 04:18:32,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:32,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:18:32,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:32,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:18:32,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:32,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:18:32,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:32,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-19 04:18:32,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:32,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:18:32,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:32,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 04:18:32,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:32,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:18:32,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:32,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-19 04:18:32,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:18:32,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-08-19 04:18:32,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat