/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_product64.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-19 04:19:32,778 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 04:19:32,781 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 04:19:32,823 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 04:19:32,823 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 04:19:32,833 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 04:19:32,836 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 04:19:32,840 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 04:19:32,843 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 04:19:32,846 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 04:19:32,846 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 04:19:32,847 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 04:19:32,847 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 04:19:32,850 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 04:19:32,853 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 04:19:32,855 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 04:19:32,858 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 04:19:32,859 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 04:19:32,860 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 04:19:32,868 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 04:19:32,871 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 04:19:32,872 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 04:19:32,873 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 04:19:32,873 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 04:19:32,885 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-19 04:19:32,886 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-19 04:19:32,886 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-19 04:19:32,887 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-19 04:19:32,887 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-19 04:19:32,888 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-19 04:19:32,888 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-19 04:19:32,890 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-19 04:19:32,891 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-19 04:19:32,891 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-19 04:19:32,892 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-19 04:19:32,893 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-19 04:19:32,893 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-19 04:19:32,894 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-19 04:19:32,894 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 04:19:32,895 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 04:19:32,896 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 04:19:32,897 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 04:19:32,937 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 04:19:32,937 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 04:19:32,941 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 04:19:32,941 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 04:19:32,941 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 04:19:32,942 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 04:19:32,942 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 04:19:32,942 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 04:19:32,942 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 04:19:32,942 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 04:19:32,943 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 04:19:32,943 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 04:19:32,943 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 04:19:32,943 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 04:19:32,943 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 04:19:32,944 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 04:19:32,944 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 04:19:32,944 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 04:19:32,944 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 04:19:32,944 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 04:19:32,944 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 04:19:32,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 04:19:32,945 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 04:19:32,945 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 04:19:32,945 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 04:19:32,945 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 04:19:32,946 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 04:19:32,946 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 04:19:32,946 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 04:19:32,946 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 04:19:33,258 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 04:19:33,276 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 04:19:33,280 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 04:19:33,282 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 04:19:33,282 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 04:19:33,283 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product64.cil.c [2020-08-19 04:19:33,346 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b5a079ee4/4395f2d79dfc4a0a8f6061aafb1ac171/FLAG034fc58e5 [2020-08-19 04:19:33,818 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 04:19:33,818 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product64.cil.c [2020-08-19 04:19:33,834 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b5a079ee4/4395f2d79dfc4a0a8f6061aafb1ac171/FLAG034fc58e5 [2020-08-19 04:19:34,145 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b5a079ee4/4395f2d79dfc4a0a8f6061aafb1ac171 [2020-08-19 04:19:34,153 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 04:19:34,154 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 04:19:34,158 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 04:19:34,158 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 04:19:34,162 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 04:19:34,163 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 04:19:34" (1/1) ... [2020-08-19 04:19:34,167 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28cbdd7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:19:34, skipping insertion in model container [2020-08-19 04:19:34,167 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 04:19:34" (1/1) ... [2020-08-19 04:19:34,176 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 04:19:34,244 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 04:19:34,766 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 04:19:34,778 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 04:19:34,861 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 04:19:34,902 INFO L208 MainTranslator]: Completed translation [2020-08-19 04:19:34,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:19:34 WrapperNode [2020-08-19 04:19:34,903 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 04:19:34,904 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 04:19:34,904 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 04:19:34,904 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 04:19:34,918 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:19:34" (1/1) ... [2020-08-19 04:19:34,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:19:34" (1/1) ... [2020-08-19 04:19:34,938 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:19:34" (1/1) ... [2020-08-19 04:19:34,938 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:19:34" (1/1) ... [2020-08-19 04:19:34,972 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:19:34" (1/1) ... [2020-08-19 04:19:34,983 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:19:34" (1/1) ... [2020-08-19 04:19:34,988 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:19:34" (1/1) ... [2020-08-19 04:19:34,996 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 04:19:34,997 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 04:19:34,997 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 04:19:34,997 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 04:19:34,999 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:19:34" (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 04:19:35,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 04:19:35,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 04:19:35,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-19 04:19:35,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-08-19 04:19:35,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-08-19 04:19:35,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-08-19 04:19:35,059 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-19 04:19:35,059 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-19 04:19:35,059 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-19 04:19:35,059 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-08-19 04:19:35,060 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-08-19 04:19:35,060 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-19 04:19:35,060 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-08-19 04:19:35,060 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-19 04:19:35,060 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-19 04:19:35,061 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-19 04:19:35,061 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-19 04:19:35,061 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-19 04:19:35,062 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-19 04:19:35,062 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-08-19 04:19:35,062 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-19 04:19:35,063 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-08-19 04:19:35,063 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-19 04:19:35,063 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-19 04:19:35,065 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-19 04:19:35,066 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-19 04:19:35,066 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-19 04:19:35,066 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-19 04:19:35,066 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-19 04:19:35,066 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-08-19 04:19:35,066 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-19 04:19:35,067 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-19 04:19:35,067 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-19 04:19:35,067 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-19 04:19:35,067 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 04:19:35,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-19 04:19:35,067 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-19 04:19:35,067 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-19 04:19:35,068 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-19 04:19:35,068 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-19 04:19:35,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-19 04:19:35,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-19 04:19:35,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-19 04:19:35,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-19 04:19:35,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-19 04:19:35,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-19 04:19:35,069 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 04:19:35,069 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-19 04:19:35,069 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-19 04:19:35,069 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-19 04:19:35,069 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-19 04:19:35,070 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-19 04:19:35,070 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-08-19 04:19:35,071 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-08-19 04:19:35,071 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-08-19 04:19:35,071 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-19 04:19:35,071 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-19 04:19:35,071 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-08-19 04:19:35,072 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-19 04:19:35,072 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-19 04:19:35,072 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-19 04:19:35,073 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-19 04:19:35,073 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-19 04:19:35,073 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-19 04:19:35,073 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-19 04:19:35,073 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-19 04:19:35,073 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-08-19 04:19:35,073 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-19 04:19:35,074 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-19 04:19:35,074 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-19 04:19:35,074 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-19 04:19:35,074 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-19 04:19:35,074 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-19 04:19:35,074 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-08-19 04:19:35,074 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-08-19 04:19:35,075 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-08-19 04:19:35,075 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-19 04:19:35,075 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-08-19 04:19:35,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-19 04:19:35,075 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-19 04:19:35,075 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-19 04:19:35,076 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-19 04:19:35,076 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-19 04:19:35,076 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-19 04:19:35,076 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-19 04:19:35,076 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 04:19:35,076 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-19 04:19:35,076 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-19 04:19:35,077 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-19 04:19:35,077 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-19 04:19:35,077 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-19 04:19:35,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-19 04:19:35,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-19 04:19:35,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-19 04:19:35,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-19 04:19:35,077 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-19 04:19:35,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-19 04:19:35,078 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-19 04:19:35,078 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-19 04:19:35,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-19 04:19:35,078 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-19 04:19:35,078 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-19 04:19:35,078 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-19 04:19:35,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 04:19:35,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-19 04:19:35,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 04:19:36,127 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 04:19:36,128 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-19 04:19:36,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 04:19:36 BoogieIcfgContainer [2020-08-19 04:19:36,134 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 04:19:36,135 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 04:19:36,135 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 04:19:36,138 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 04:19:36,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 04:19:34" (1/3) ... [2020-08-19 04:19:36,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32855c95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 04:19:36, skipping insertion in model container [2020-08-19 04:19:36,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:19:34" (2/3) ... [2020-08-19 04:19:36,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32855c95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 04:19:36, skipping insertion in model container [2020-08-19 04:19:36,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 04:19:36" (3/3) ... [2020-08-19 04:19:36,142 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product64.cil.c [2020-08-19 04:19:36,153 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 04:19:36,162 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 04:19:36,176 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 04:19:36,203 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 04:19:36,203 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 04:19:36,204 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 04:19:36,204 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 04:19:36,204 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 04:19:36,205 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 04:19:36,205 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 04:19:36,205 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 04:19:36,230 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2020-08-19 04:19:36,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-08-19 04:19:36,242 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:19:36,244 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 04:19:36,244 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:19:36,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:19:36,251 INFO L82 PathProgramCache]: Analyzing trace with hash -304783320, now seen corresponding path program 1 times [2020-08-19 04:19:36,261 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:19:36,261 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1118659361] [2020-08-19 04:19:36,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:19:36,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:36,907 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 04:19:36,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:19:36,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:36,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 04:19:36,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:36,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:19:36,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:36,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:19:36,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:36,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:19:36,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:36,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 04:19:36,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:36,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 04:19:36,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:36,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:19:36,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:36,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-19 04:19:36,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:36,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-19 04:19:36,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:37,016 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 04:19:37,017 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1118659361] [2020-08-19 04:19:37,019 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:19:37,020 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-19 04:19:37,021 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622829840] [2020-08-19 04:19:37,026 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-19 04:19:37,027 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:19:37,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-19 04:19:37,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-19 04:19:37,044 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 4 states. [2020-08-19 04:19:38,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:19:38,389 INFO L93 Difference]: Finished difference Result 382 states and 489 transitions. [2020-08-19 04:19:38,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-19 04:19:38,391 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-08-19 04:19:38,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:19:38,409 INFO L225 Difference]: With dead ends: 382 [2020-08-19 04:19:38,409 INFO L226 Difference]: Without dead ends: 210 [2020-08-19 04:19:38,415 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 04:19:38,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2020-08-19 04:19:38,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 173. [2020-08-19 04:19:38,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2020-08-19 04:19:38,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 205 transitions. [2020-08-19 04:19:38,525 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 205 transitions. Word has length 59 [2020-08-19 04:19:38,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:19:38,525 INFO L479 AbstractCegarLoop]: Abstraction has 173 states and 205 transitions. [2020-08-19 04:19:38,525 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-19 04:19:38,526 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 205 transitions. [2020-08-19 04:19:38,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-08-19 04:19:38,530 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:19:38,530 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 04:19:38,531 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 04:19:38,531 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:19:38,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:19:38,531 INFO L82 PathProgramCache]: Analyzing trace with hash -511503066, now seen corresponding path program 1 times [2020-08-19 04:19:38,531 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:19:38,532 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1007332199] [2020-08-19 04:19:38,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:19:38,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:38,874 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 04:19:38,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:19:38,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:38,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 04:19:38,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:38,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:19:38,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:38,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:19:38,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:38,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:19:38,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:38,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 04:19:38,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:38,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-19 04:19:38,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:38,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:19:38,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:38,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-19 04:19:38,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:38,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-08-19 04:19:38,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:38,937 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 04:19:38,938 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1007332199] [2020-08-19 04:19:38,938 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:19:38,939 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-19 04:19:38,939 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905979818] [2020-08-19 04:19:38,940 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-19 04:19:38,941 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:19:38,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-19 04:19:38,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-19 04:19:38,941 INFO L87 Difference]: Start difference. First operand 173 states and 205 transitions. Second operand 5 states. [2020-08-19 04:19:39,411 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 04:19:40,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:19:40,581 INFO L93 Difference]: Finished difference Result 317 states and 389 transitions. [2020-08-19 04:19:40,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-19 04:19:40,586 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2020-08-19 04:19:40,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:19:40,592 INFO L225 Difference]: With dead ends: 317 [2020-08-19 04:19:40,592 INFO L226 Difference]: Without dead ends: 200 [2020-08-19 04:19:40,597 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 04:19:40,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2020-08-19 04:19:40,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 164. [2020-08-19 04:19:40,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-08-19 04:19:40,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 193 transitions. [2020-08-19 04:19:40,655 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 193 transitions. Word has length 60 [2020-08-19 04:19:40,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:19:40,655 INFO L479 AbstractCegarLoop]: Abstraction has 164 states and 193 transitions. [2020-08-19 04:19:40,655 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-19 04:19:40,656 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 193 transitions. [2020-08-19 04:19:40,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-08-19 04:19:40,658 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:19:40,658 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 04:19:40,658 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 04:19:40,659 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:19:40,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:19:40,659 INFO L82 PathProgramCache]: Analyzing trace with hash 1192401668, now seen corresponding path program 1 times [2020-08-19 04:19:40,659 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:19:40,660 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [835743414] [2020-08-19 04:19:40,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:19:40,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:41,021 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 04:19:41,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:19:41,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:41,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 04:19:41,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:41,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:19:41,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:41,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:19:41,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:41,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:19:41,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:41,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 04:19:41,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:41,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 04:19:41,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:41,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:19:41,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:41,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-19 04:19:41,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:41,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-19 04:19:41,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:41,133 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 04:19:41,133 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [835743414] [2020-08-19 04:19:41,134 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:19:41,134 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-19 04:19:41,134 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144327595] [2020-08-19 04:19:41,135 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 04:19:41,135 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:19:41,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 04:19:41,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-19 04:19:41,136 INFO L87 Difference]: Start difference. First operand 164 states and 193 transitions. Second operand 9 states. [2020-08-19 04:19:41,518 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 04:19:41,836 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 04:19:42,106 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 04:19:42,332 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 04:19:43,235 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 04:19:45,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:19:45,554 INFO L93 Difference]: Finished difference Result 549 states and 680 transitions. [2020-08-19 04:19:45,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-19 04:19:45,557 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 65 [2020-08-19 04:19:45,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:19:45,568 INFO L225 Difference]: With dead ends: 549 [2020-08-19 04:19:45,569 INFO L226 Difference]: Without dead ends: 413 [2020-08-19 04:19:45,575 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 04:19:45,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2020-08-19 04:19:45,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 344. [2020-08-19 04:19:45,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344 states. [2020-08-19 04:19:45,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 418 transitions. [2020-08-19 04:19:45,706 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 418 transitions. Word has length 65 [2020-08-19 04:19:45,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:19:45,707 INFO L479 AbstractCegarLoop]: Abstraction has 344 states and 418 transitions. [2020-08-19 04:19:45,707 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 04:19:45,707 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 418 transitions. [2020-08-19 04:19:45,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-08-19 04:19:45,710 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:19:45,710 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 04:19:45,711 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-19 04:19:45,711 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:19:45,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:19:45,711 INFO L82 PathProgramCache]: Analyzing trace with hash 1231670033, now seen corresponding path program 1 times [2020-08-19 04:19:45,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:19:45,712 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [385727337] [2020-08-19 04:19:45,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:19:45,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:46,125 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 04:19:46,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:19:46,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:46,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 04:19:46,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:46,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:19:46,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:46,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:19:46,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:46,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:19:46,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:46,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 04:19:46,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:46,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 04:19:46,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:46,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-19 04:19:46,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:46,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:19:46,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:46,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-19 04:19:46,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:46,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-19 04:19:46,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:46,219 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 04:19:46,220 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [385727337] [2020-08-19 04:19:46,220 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:19:46,220 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-19 04:19:46,220 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158226026] [2020-08-19 04:19:46,221 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 04:19:46,221 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:19:46,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 04:19:46,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-19 04:19:46,222 INFO L87 Difference]: Start difference. First operand 344 states and 418 transitions. Second operand 9 states. [2020-08-19 04:19:46,664 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 04:19:47,341 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 04:19:48,335 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 04:19:48,560 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 04:19:48,898 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 04:19:49,208 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 04:19:50,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:19:50,210 INFO L93 Difference]: Finished difference Result 891 states and 1152 transitions. [2020-08-19 04:19:50,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-19 04:19:50,211 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2020-08-19 04:19:50,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:19:50,217 INFO L225 Difference]: With dead ends: 891 [2020-08-19 04:19:50,218 INFO L226 Difference]: Without dead ends: 575 [2020-08-19 04:19:50,220 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-08-19 04:19:50,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2020-08-19 04:19:50,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 507. [2020-08-19 04:19:50,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 507 states. [2020-08-19 04:19:50,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 605 transitions. [2020-08-19 04:19:50,313 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 605 transitions. Word has length 70 [2020-08-19 04:19:50,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:19:50,314 INFO L479 AbstractCegarLoop]: Abstraction has 507 states and 605 transitions. [2020-08-19 04:19:50,314 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 04:19:50,314 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 605 transitions. [2020-08-19 04:19:50,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-08-19 04:19:50,317 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:19:50,317 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 04:19:50,318 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-19 04:19:50,318 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:19:50,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:19:50,318 INFO L82 PathProgramCache]: Analyzing trace with hash 853087743, now seen corresponding path program 1 times [2020-08-19 04:19:50,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:19:50,319 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1816608349] [2020-08-19 04:19:50,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:19:50,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:50,598 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 04:19:50,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:19:50,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:50,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 04:19:50,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:50,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:19:50,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:50,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:19:50,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:50,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:19:50,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:50,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 04:19:50,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:50,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 04:19:50,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:50,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:19:50,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:50,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-19 04:19:50,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:50,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:19:50,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:50,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:19:50,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:50,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:19:50,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:50,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:19:50,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:50,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 04:19:50,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:50,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:19:50,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:50,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:19:50,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:50,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:19:50,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:50,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-19 04:19:50,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:50,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-19 04:19:50,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:50,782 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 04:19:50,782 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1816608349] [2020-08-19 04:19:50,782 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:19:50,783 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-19 04:19:50,783 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248229133] [2020-08-19 04:19:50,785 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 04:19:50,785 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:19:50,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 04:19:50,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-19 04:19:50,786 INFO L87 Difference]: Start difference. First operand 507 states and 605 transitions. Second operand 9 states. [2020-08-19 04:19:51,865 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 04:19:52,115 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-19 04:19:52,399 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 04:19:52,640 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 04:19:53,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:19:53,555 INFO L93 Difference]: Finished difference Result 1079 states and 1378 transitions. [2020-08-19 04:19:53,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-19 04:19:53,556 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 113 [2020-08-19 04:19:53,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:19:53,562 INFO L225 Difference]: With dead ends: 1079 [2020-08-19 04:19:53,562 INFO L226 Difference]: Without dead ends: 600 [2020-08-19 04:19:53,564 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-08-19 04:19:53,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2020-08-19 04:19:53,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 520. [2020-08-19 04:19:53,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 520 states. [2020-08-19 04:19:53,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 619 transitions. [2020-08-19 04:19:53,653 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 619 transitions. Word has length 113 [2020-08-19 04:19:53,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:19:53,653 INFO L479 AbstractCegarLoop]: Abstraction has 520 states and 619 transitions. [2020-08-19 04:19:53,653 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 04:19:53,654 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 619 transitions. [2020-08-19 04:19:53,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-08-19 04:19:53,656 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:19:53,656 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 04:19:53,656 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-19 04:19:53,656 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:19:53,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:19:53,657 INFO L82 PathProgramCache]: Analyzing trace with hash -1502717507, now seen corresponding path program 1 times [2020-08-19 04:19:53,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:19:53,657 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1128990359] [2020-08-19 04:19:53,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:19:53,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:53,950 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 04:19:53,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:19:53,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:53,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 04:19:53,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:53,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:19:53,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:53,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:19:53,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:53,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:19:53,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:53,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 04:19:53,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:53,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 04:19:53,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:54,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:19:54,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:54,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-19 04:19:54,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:54,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:19:54,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:54,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:19:54,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:54,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:19:54,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:54,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:19:54,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:54,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 04:19:54,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:54,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:19:54,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:54,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:19:54,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:54,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:19:54,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:54,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-19 04:19:54,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:54,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-19 04:19:54,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:54,096 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 04:19:54,097 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1128990359] [2020-08-19 04:19:54,097 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:19:54,097 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-19 04:19:54,097 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599665386] [2020-08-19 04:19:54,098 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-19 04:19:54,098 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:19:54,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-19 04:19:54,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-08-19 04:19:54,099 INFO L87 Difference]: Start difference. First operand 520 states and 619 transitions. Second operand 11 states. [2020-08-19 04:19:54,636 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 04:19:54,887 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 04:19:55,143 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 04:19:55,991 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 04:19:56,309 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 04:19:56,570 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 04:19:57,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:19:57,748 INFO L93 Difference]: Finished difference Result 1102 states and 1402 transitions. [2020-08-19 04:19:57,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-19 04:19:57,749 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 113 [2020-08-19 04:19:57,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:19:57,753 INFO L225 Difference]: With dead ends: 1102 [2020-08-19 04:19:57,753 INFO L226 Difference]: Without dead ends: 610 [2020-08-19 04:19:57,756 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-08-19 04:19:57,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2020-08-19 04:19:57,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 528. [2020-08-19 04:19:57,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2020-08-19 04:19:57,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 627 transitions. [2020-08-19 04:19:57,846 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 627 transitions. Word has length 113 [2020-08-19 04:19:57,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:19:57,847 INFO L479 AbstractCegarLoop]: Abstraction has 528 states and 627 transitions. [2020-08-19 04:19:57,847 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-19 04:19:57,847 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 627 transitions. [2020-08-19 04:19:57,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-08-19 04:19:57,849 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:19:57,849 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 04:19:57,849 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-19 04:19:57,850 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:19:57,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:19:57,850 INFO L82 PathProgramCache]: Analyzing trace with hash -733547492, now seen corresponding path program 1 times [2020-08-19 04:19:57,850 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:19:57,851 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1035603281] [2020-08-19 04:19:57,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:19:57,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:58,150 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 04:19:58,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:19:58,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:58,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 04:19:58,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:58,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:19:58,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:58,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:19:58,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:58,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:19:58,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:58,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 04:19:58,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:58,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 04:19:58,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:58,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:19:58,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:58,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-19 04:19:58,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:58,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:19:58,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:58,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:19:58,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:58,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:19:58,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:58,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:19:58,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:58,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 04:19:58,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:58,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:19:58,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:58,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:19:58,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:58,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:19:58,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:58,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-19 04:19:58,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:58,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-19 04:19:58,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:58,332 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 04:19:58,332 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1035603281] [2020-08-19 04:19:58,332 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:19:58,333 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-19 04:19:58,333 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767325846] [2020-08-19 04:19:58,334 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-19 04:19:58,334 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:19:58,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-19 04:19:58,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-19 04:19:58,334 INFO L87 Difference]: Start difference. First operand 528 states and 627 transitions. Second operand 7 states. [2020-08-19 04:19:58,816 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 04:19:59,517 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 04:20:02,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:20:02,220 INFO L93 Difference]: Finished difference Result 1603 states and 2056 transitions. [2020-08-19 04:20:02,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-19 04:20:02,220 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 113 [2020-08-19 04:20:02,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:20:02,228 INFO L225 Difference]: With dead ends: 1603 [2020-08-19 04:20:02,228 INFO L226 Difference]: Without dead ends: 1103 [2020-08-19 04:20:02,230 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 45 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-08-19 04:20:02,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1103 states. [2020-08-19 04:20:02,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1103 to 1025. [2020-08-19 04:20:02,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1025 states. [2020-08-19 04:20:02,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1239 transitions. [2020-08-19 04:20:02,420 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1239 transitions. Word has length 113 [2020-08-19 04:20:02,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:20:02,420 INFO L479 AbstractCegarLoop]: Abstraction has 1025 states and 1239 transitions. [2020-08-19 04:20:02,420 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-19 04:20:02,420 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1239 transitions. [2020-08-19 04:20:02,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-08-19 04:20:02,426 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:20:02,427 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 04:20:02,427 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-19 04:20:02,427 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:20:02,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:20:02,428 INFO L82 PathProgramCache]: Analyzing trace with hash 216342370, now seen corresponding path program 1 times [2020-08-19 04:20:02,428 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:20:02,428 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1342960436] [2020-08-19 04:20:02,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:20:02,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:02,842 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 04:20:02,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:20:02,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:02,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 04:20:02,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:02,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:20:02,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:02,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:20:02,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:02,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:20:02,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:02,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 04:20:02,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:02,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 04:20:02,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:02,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-19 04:20:02,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:02,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:20:02,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:02,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-08-19 04:20:02,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:02,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:20:02,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:02,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:20:02,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:02,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:20:02,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:02,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:02,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:03,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 04:20:03,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:03,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:03,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:03,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:03,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:03,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:20:03,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:03,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-19 04:20:03,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:03,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-08-19 04:20:03,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:03,048 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 04:20:03,051 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1342960436] [2020-08-19 04:20:03,051 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:20:03,051 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-19 04:20:03,052 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599494879] [2020-08-19 04:20:03,053 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-19 04:20:03,053 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:20:03,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-19 04:20:03,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-08-19 04:20:03,053 INFO L87 Difference]: Start difference. First operand 1025 states and 1239 transitions. Second operand 12 states. [2020-08-19 04:20:03,490 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 04:20:04,251 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 04:20:04,995 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 04:20:05,348 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 04:20:05,612 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 04:20:05,943 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 04:20:06,206 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 04:20:08,637 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 04:20:08,958 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 04:20:09,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:20:09,799 INFO L93 Difference]: Finished difference Result 2915 states and 3744 transitions. [2020-08-19 04:20:09,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-08-19 04:20:09,800 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 117 [2020-08-19 04:20:09,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:20:09,814 INFO L225 Difference]: With dead ends: 2915 [2020-08-19 04:20:09,814 INFO L226 Difference]: Without dead ends: 2120 [2020-08-19 04:20:09,818 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2020-08-19 04:20:09,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2120 states. [2020-08-19 04:20:10,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2120 to 1808. [2020-08-19 04:20:10,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1808 states. [2020-08-19 04:20:10,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1808 states to 1808 states and 2166 transitions. [2020-08-19 04:20:10,270 INFO L78 Accepts]: Start accepts. Automaton has 1808 states and 2166 transitions. Word has length 117 [2020-08-19 04:20:10,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:20:10,272 INFO L479 AbstractCegarLoop]: Abstraction has 1808 states and 2166 transitions. [2020-08-19 04:20:10,272 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-19 04:20:10,272 INFO L276 IsEmpty]: Start isEmpty. Operand 1808 states and 2166 transitions. [2020-08-19 04:20:10,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-08-19 04:20:10,277 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:20:10,278 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 04:20:10,278 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-19 04:20:10,278 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:20:10,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:20:10,279 INFO L82 PathProgramCache]: Analyzing trace with hash -1963590153, now seen corresponding path program 1 times [2020-08-19 04:20:10,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:20:10,279 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [949894486] [2020-08-19 04:20:10,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:20:10,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:10,583 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 04:20:10,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:20:10,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:10,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 04:20:10,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:10,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:20:10,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:10,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:20:10,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:10,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:20:10,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:10,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 04:20:10,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:10,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 04:20:10,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:10,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-19 04:20:10,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:10,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:20:10,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:10,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:20:10,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:10,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 04:20:10,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:10,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:20:10,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:10,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:20:10,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:10,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:20:10,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:10,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:10,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:10,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 04:20:10,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:10,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:10,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:10,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:10,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:10,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:20:10,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:10,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-08-19 04:20:10,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:10,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:10,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:10,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-19 04:20:10,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:10,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:20:10,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:10,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-19 04:20:10,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:10,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-08-19 04:20:10,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:10,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:20:10,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:10,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:10,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:10,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-19 04:20:10,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:10,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:20:10,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:10,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:10,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:10,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 04:20:10,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:10,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:20:10,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:10,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-08-19 04:20:10,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:10,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-08-19 04:20:10,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:10,888 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 22 proven. 10 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-08-19 04:20:10,889 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [949894486] [2020-08-19 04:20:10,889 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 04:20:10,889 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-19 04:20:10,889 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218991199] [2020-08-19 04:20:10,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-19 04:20:10,890 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:20:10,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-19 04:20:10,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-08-19 04:20:10,891 INFO L87 Difference]: Start difference. First operand 1808 states and 2166 transitions. Second operand 16 states. [2020-08-19 04:20:11,572 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 04:20:11,913 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-19 04:20:12,202 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-19 04:20:12,457 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-19 04:20:13,232 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 04:20:13,541 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 04:20:13,907 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-19 04:20:14,229 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-19 04:20:15,779 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 04:20:16,397 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 04:20:16,699 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 04:20:17,038 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 04:20:17,590 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 04:20:18,006 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 04:20:18,834 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 04:20:19,127 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-19 04:20:19,772 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-19 04:20:20,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:20:20,639 INFO L93 Difference]: Finished difference Result 3877 states and 4776 transitions. [2020-08-19 04:20:20,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-08-19 04:20:20,640 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 195 [2020-08-19 04:20:20,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:20:20,654 INFO L225 Difference]: With dead ends: 3877 [2020-08-19 04:20:20,654 INFO L226 Difference]: Without dead ends: 2287 [2020-08-19 04:20:20,661 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 665 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=589, Invalid=2167, Unknown=0, NotChecked=0, Total=2756 [2020-08-19 04:20:20,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2287 states. [2020-08-19 04:20:21,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2287 to 2095. [2020-08-19 04:20:21,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2095 states. [2020-08-19 04:20:21,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2095 states to 2095 states and 2456 transitions. [2020-08-19 04:20:21,128 INFO L78 Accepts]: Start accepts. Automaton has 2095 states and 2456 transitions. Word has length 195 [2020-08-19 04:20:21,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:20:21,129 INFO L479 AbstractCegarLoop]: Abstraction has 2095 states and 2456 transitions. [2020-08-19 04:20:21,129 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-19 04:20:21,129 INFO L276 IsEmpty]: Start isEmpty. Operand 2095 states and 2456 transitions. [2020-08-19 04:20:21,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2020-08-19 04:20:21,142 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:20:21,142 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 04:20:21,142 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-19 04:20:21,143 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:20:21,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:20:21,143 INFO L82 PathProgramCache]: Analyzing trace with hash -1212078623, now seen corresponding path program 1 times [2020-08-19 04:20:21,144 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:20:21,144 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [901986489] [2020-08-19 04:20:21,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:20:21,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,545 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 04:20:21,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:20:21,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 04:20:21,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:20:21,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:20:21,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:20:21,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 04:20:21,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 04:20:21,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-19 04:20:21,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:20:21,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:20:21,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 04:20:21,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:20:21,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:20:21,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:20:21,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:21,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 04:20:21,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:21,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:21,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:20:21,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-08-19 04:20:21,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:21,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-19 04:20:21,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:20:21,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:20:21,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:20:21,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-19 04:20:21,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:20:21,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:21,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-19 04:20:21,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:20:21,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:21,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 04:20:21,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:20:21,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-19 04:20:21,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:21,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-08-19 04:20:21,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:20:21,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:20:21,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:20:21,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-19 04:20:21,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:20:21,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:21,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-19 04:20:21,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-19 04:20:21,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:21,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-08-19 04:20:21,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2020-08-19 04:20:21,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:20:21,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:20:21,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 04:20:21,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:21,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2020-08-19 04:20:21,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2020-08-19 04:20:21,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:20:21,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2020-08-19 04:20:21,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:21,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:20:22,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:22,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:20:22,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:22,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:20:22,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:22,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:22,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:22,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 04:20:22,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:22,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:22,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:22,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:22,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:22,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:20:22,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:22,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2020-08-19 04:20:22,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:22,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2020-08-19 04:20:22,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:22,155 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 109 proven. 48 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2020-08-19 04:20:22,157 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [901986489] [2020-08-19 04:20:22,157 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 04:20:22,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-08-19 04:20:22,158 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473806423] [2020-08-19 04:20:22,159 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-08-19 04:20:22,159 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:20:22,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-08-19 04:20:22,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2020-08-19 04:20:22,160 INFO L87 Difference]: Start difference. First operand 2095 states and 2456 transitions. Second operand 17 states. [2020-08-19 04:20:23,756 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 04:20:24,036 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 04:20:24,298 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 04:20:24,557 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 04:20:25,649 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 04:20:28,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:20:28,915 INFO L93 Difference]: Finished difference Result 6070 states and 7635 transitions. [2020-08-19 04:20:28,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-08-19 04:20:28,916 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 371 [2020-08-19 04:20:28,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:20:28,944 INFO L225 Difference]: With dead ends: 6070 [2020-08-19 04:20:28,944 INFO L226 Difference]: Without dead ends: 3630 [2020-08-19 04:20:28,955 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 137 SyntacticMatches, 3 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 489 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=433, Invalid=1547, Unknown=0, NotChecked=0, Total=1980 [2020-08-19 04:20:28,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3630 states. [2020-08-19 04:20:29,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3630 to 2854. [2020-08-19 04:20:29,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2854 states. [2020-08-19 04:20:29,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2854 states to 2854 states and 3425 transitions. [2020-08-19 04:20:29,655 INFO L78 Accepts]: Start accepts. Automaton has 2854 states and 3425 transitions. Word has length 371 [2020-08-19 04:20:29,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:20:29,656 INFO L479 AbstractCegarLoop]: Abstraction has 2854 states and 3425 transitions. [2020-08-19 04:20:29,656 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-08-19 04:20:29,656 INFO L276 IsEmpty]: Start isEmpty. Operand 2854 states and 3425 transitions. [2020-08-19 04:20:29,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2020-08-19 04:20:29,669 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:20:29,670 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, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 04:20:29,670 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-19 04:20:29,671 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:20:29,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:20:29,671 INFO L82 PathProgramCache]: Analyzing trace with hash 353451792, now seen corresponding path program 1 times [2020-08-19 04:20:29,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:20:29,672 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [128596309] [2020-08-19 04:20:29,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:20:29,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,005 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 04:20:30,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:20:30,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 04:20:30,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:20:30,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:20:30,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:20:30,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 04:20:30,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 04:20:30,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-19 04:20:30,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:20:30,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:20:30,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 04:20:30,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:20:30,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:20:30,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:20:30,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:30,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 04:20:30,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:30,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:30,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:20:30,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-08-19 04:20:30,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:30,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-19 04:20:30,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:20:30,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:20:30,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:20:30,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-19 04:20:30,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:20:30,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:30,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-19 04:20:30,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:20:30,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:30,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 04:20:30,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:20:30,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-19 04:20:30,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:30,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-19 04:20:30,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-08-19 04:20:30,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:20:30,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:20:30,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:20:30,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-19 04:20:30,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:20:30,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:30,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-19 04:20:30,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-19 04:20:30,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:30,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2020-08-19 04:20:30,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:20:30,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2020-08-19 04:20:30,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:20:30,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:20:30,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:20:30,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:30,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 04:20:30,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:30,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:30,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:20:30,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2020-08-19 04:20:30,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2020-08-19 04:20:30,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:30,513 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 90 proven. 44 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2020-08-19 04:20:30,519 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [128596309] [2020-08-19 04:20:30,519 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 04:20:30,519 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-19 04:20:30,520 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020371129] [2020-08-19 04:20:30,522 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-19 04:20:30,522 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:20:30,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-19 04:20:30,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2020-08-19 04:20:30,524 INFO L87 Difference]: Start difference. First operand 2854 states and 3425 transitions. Second operand 16 states. [2020-08-19 04:20:31,335 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 04:20:31,720 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 04:20:32,022 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 192