/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=0.3 -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 05:08:01,934 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 05:08:01,936 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 05:08:01,960 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 05:08:01,961 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 05:08:01,962 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 05:08:01,963 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 05:08:01,965 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 05:08:01,966 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 05:08:01,967 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 05:08:01,968 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 05:08:01,969 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 05:08:01,969 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 05:08:01,970 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 05:08:01,971 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 05:08:01,973 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 05:08:01,973 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 05:08:01,974 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 05:08:01,976 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 05:08:01,978 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 05:08:01,979 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 05:08:01,981 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 05:08:01,982 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 05:08:01,983 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 05:08:01,985 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-19 05:08:01,985 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-19 05:08:01,986 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-19 05:08:01,987 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-19 05:08:01,987 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-19 05:08:01,988 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-19 05:08:01,988 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-19 05:08:01,989 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-19 05:08:01,990 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-19 05:08:01,991 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-19 05:08:01,992 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-19 05:08:01,992 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-19 05:08:01,992 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-19 05:08:01,993 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-19 05:08:01,993 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 05:08:01,994 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 05:08:01,994 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 05:08:01,995 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 05:08:02,017 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 05:08:02,017 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 05:08:02,019 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 05:08:02,019 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 05:08:02,019 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 05:08:02,019 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 05:08:02,019 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 05:08:02,020 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 05:08:02,020 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 05:08:02,020 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 05:08:02,020 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 05:08:02,020 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 05:08:02,020 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 05:08:02,021 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 05:08:02,021 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 05:08:02,021 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 05:08:02,021 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 05:08:02,021 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 05:08:02,022 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 05:08:02,022 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 05:08:02,022 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 05:08:02,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 05:08:02,023 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 05:08:02,023 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 05:08:02,023 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 05:08:02,023 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 05:08:02,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 05:08:02,024 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 05:08:02,024 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 05:08:02,024 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=0.3; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3; [2020-08-19 05:08:02,360 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 05:08:02,373 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 05:08:02,376 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 05:08:02,377 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 05:08:02,378 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 05:08:02,380 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product64.cil.c [2020-08-19 05:08:02,449 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/72b528c01/ebe844cdeac948e6b246782fb89a9966/FLAGf6c6d2c1c [2020-08-19 05:08:02,971 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 05:08:02,975 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product64.cil.c [2020-08-19 05:08:02,989 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/72b528c01/ebe844cdeac948e6b246782fb89a9966/FLAGf6c6d2c1c [2020-08-19 05:08:03,273 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/72b528c01/ebe844cdeac948e6b246782fb89a9966 [2020-08-19 05:08:03,281 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 05:08:03,282 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 05:08:03,283 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 05:08:03,283 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 05:08:03,287 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 05:08:03,288 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 05:08:03" (1/1) ... [2020-08-19 05:08:03,290 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@626b66d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:08:03, skipping insertion in model container [2020-08-19 05:08:03,290 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 05:08:03" (1/1) ... [2020-08-19 05:08:03,298 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 05:08:03,362 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 05:08:03,750 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 05:08:03,761 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 05:08:03,853 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 05:08:03,904 INFO L208 MainTranslator]: Completed translation [2020-08-19 05:08:03,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:08:03 WrapperNode [2020-08-19 05:08:03,905 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 05:08:03,906 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 05:08:03,906 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 05:08:03,906 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 05:08:03,919 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:08:03" (1/1) ... [2020-08-19 05:08:03,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:08:03" (1/1) ... [2020-08-19 05:08:03,948 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:08:03" (1/1) ... [2020-08-19 05:08:03,949 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:08:03" (1/1) ... [2020-08-19 05:08:04,006 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:08:03" (1/1) ... [2020-08-19 05:08:04,016 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:08:03" (1/1) ... [2020-08-19 05:08:04,021 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:08:03" (1/1) ... [2020-08-19 05:08:04,028 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 05:08:04,029 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 05:08:04,029 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 05:08:04,029 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 05:08:04,030 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:08:03" (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 05:08:04,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 05:08:04,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 05:08:04,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-19 05:08:04,099 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-08-19 05:08:04,099 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-08-19 05:08:04,099 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-08-19 05:08:04,100 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-19 05:08:04,100 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-19 05:08:04,100 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-19 05:08:04,101 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-08-19 05:08:04,101 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-08-19 05:08:04,101 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-19 05:08:04,101 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-08-19 05:08:04,101 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-19 05:08:04,101 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-19 05:08:04,102 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-19 05:08:04,102 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-19 05:08:04,103 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-19 05:08:04,103 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-19 05:08:04,103 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-08-19 05:08:04,103 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-19 05:08:04,103 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-08-19 05:08:04,104 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-19 05:08:04,104 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-19 05:08:04,105 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-19 05:08:04,106 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-19 05:08:04,106 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-19 05:08:04,107 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-19 05:08:04,107 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-19 05:08:04,107 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-08-19 05:08:04,108 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-19 05:08:04,108 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-19 05:08:04,108 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-19 05:08:04,108 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-19 05:08:04,108 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 05:08:04,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-19 05:08:04,108 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-19 05:08:04,109 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-19 05:08:04,109 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-19 05:08:04,109 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-19 05:08:04,109 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-19 05:08:04,109 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-19 05:08:04,109 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-19 05:08:04,109 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-19 05:08:04,110 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-19 05:08:04,110 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-19 05:08:04,110 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 05:08:04,110 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-19 05:08:04,110 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-19 05:08:04,110 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-19 05:08:04,110 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-19 05:08:04,110 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-19 05:08:04,110 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-08-19 05:08:04,111 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-08-19 05:08:04,111 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-08-19 05:08:04,111 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-19 05:08:04,111 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-19 05:08:04,111 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-08-19 05:08:04,111 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-19 05:08:04,111 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-19 05:08:04,111 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-19 05:08:04,112 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-19 05:08:04,112 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-19 05:08:04,112 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-19 05:08:04,112 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-19 05:08:04,112 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-19 05:08:04,112 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-08-19 05:08:04,112 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-19 05:08:04,112 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-19 05:08:04,113 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-19 05:08:04,113 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-19 05:08:04,113 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-19 05:08:04,113 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-19 05:08:04,113 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-08-19 05:08:04,113 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-08-19 05:08:04,113 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-08-19 05:08:04,114 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-19 05:08:04,114 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-08-19 05:08:04,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-19 05:08:04,114 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-19 05:08:04,114 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-19 05:08:04,114 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-19 05:08:04,114 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-19 05:08:04,115 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-19 05:08:04,115 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-19 05:08:04,115 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 05:08:04,115 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-19 05:08:04,115 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-19 05:08:04,115 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-19 05:08:04,116 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-19 05:08:04,116 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-19 05:08:04,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-19 05:08:04,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-19 05:08:04,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-19 05:08:04,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-19 05:08:04,116 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-19 05:08:04,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-19 05:08:04,117 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-19 05:08:04,117 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-19 05:08:04,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-19 05:08:04,117 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-19 05:08:04,117 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-19 05:08:04,117 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-19 05:08:04,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 05:08:04,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-19 05:08:04,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 05:08:05,214 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 05:08:05,215 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-19 05:08:05,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 05:08:05 BoogieIcfgContainer [2020-08-19 05:08:05,220 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 05:08:05,221 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 05:08:05,222 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 05:08:05,225 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 05:08:05,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 05:08:03" (1/3) ... [2020-08-19 05:08:05,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cb3731f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 05:08:05, skipping insertion in model container [2020-08-19 05:08:05,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:08:03" (2/3) ... [2020-08-19 05:08:05,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cb3731f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 05:08:05, skipping insertion in model container [2020-08-19 05:08:05,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 05:08:05" (3/3) ... [2020-08-19 05:08:05,228 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product64.cil.c [2020-08-19 05:08:05,238 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 05:08:05,246 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 05:08:05,259 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 05:08:05,284 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 05:08:05,284 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 05:08:05,284 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 05:08:05,285 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 05:08:05,285 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 05:08:05,285 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 05:08:05,285 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 05:08:05,286 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 05:08:05,308 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2020-08-19 05:08:05,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-08-19 05:08:05,320 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:08:05,321 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 05:08:05,321 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:08:05,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:08:05,327 INFO L82 PathProgramCache]: Analyzing trace with hash -304783320, now seen corresponding path program 1 times [2020-08-19 05:08:05,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:08:05,336 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [223606647] [2020-08-19 05:08:05,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:08:05,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:06,048 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 05:08:06,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:08:06,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:06,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 05:08:06,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:06,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 05:08:06,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:06,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:08:06,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:06,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 05:08:06,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:06,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 05:08:06,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:06,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 05:08:06,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:06,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:08:06,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:06,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-19 05:08:06,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:06,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-19 05:08:06,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:06,170 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 05:08:06,171 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [223606647] [2020-08-19 05:08:06,173 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:08:06,174 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-19 05:08:06,174 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617288550] [2020-08-19 05:08:06,181 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-19 05:08:06,181 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:08:06,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-19 05:08:06,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-19 05:08:06,198 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 4 states. [2020-08-19 05:08:07,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:08:07,532 INFO L93 Difference]: Finished difference Result 382 states and 489 transitions. [2020-08-19 05:08:07,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-19 05:08:07,537 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-08-19 05:08:07,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:08:07,552 INFO L225 Difference]: With dead ends: 382 [2020-08-19 05:08:07,553 INFO L226 Difference]: Without dead ends: 210 [2020-08-19 05:08:07,557 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 05:08:07,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2020-08-19 05:08:07,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 173. [2020-08-19 05:08:07,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2020-08-19 05:08:07,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 205 transitions. [2020-08-19 05:08:07,676 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 205 transitions. Word has length 59 [2020-08-19 05:08:07,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:08:07,676 INFO L479 AbstractCegarLoop]: Abstraction has 173 states and 205 transitions. [2020-08-19 05:08:07,677 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-19 05:08:07,677 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 205 transitions. [2020-08-19 05:08:07,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-08-19 05:08:07,681 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:08:07,681 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 05:08:07,681 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 05:08:07,681 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:08:07,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:08:07,682 INFO L82 PathProgramCache]: Analyzing trace with hash -511503066, now seen corresponding path program 1 times [2020-08-19 05:08:07,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:08:07,683 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1435750385] [2020-08-19 05:08:07,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:08:07,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:07,981 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 05:08:07,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:08:07,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:08,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 05:08:08,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:08,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 05:08:08,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:08,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:08:08,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:08,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 05:08:08,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:08,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 05:08:08,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:08,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-19 05:08:08,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:08,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:08:08,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:08,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-19 05:08:08,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:08,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-08-19 05:08:08,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:08,037 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 05:08:08,037 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1435750385] [2020-08-19 05:08:08,037 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:08:08,037 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-19 05:08:08,038 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653117685] [2020-08-19 05:08:08,039 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-19 05:08:08,040 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:08:08,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-19 05:08:08,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-19 05:08:08,040 INFO L87 Difference]: Start difference. First operand 173 states and 205 transitions. Second operand 5 states. [2020-08-19 05:08:08,506 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 05:08:09,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:08:09,725 INFO L93 Difference]: Finished difference Result 317 states and 389 transitions. [2020-08-19 05:08:09,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-19 05:08:09,726 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2020-08-19 05:08:09,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:08:09,734 INFO L225 Difference]: With dead ends: 317 [2020-08-19 05:08:09,734 INFO L226 Difference]: Without dead ends: 200 [2020-08-19 05:08:09,740 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 05:08:09,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2020-08-19 05:08:09,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 164. [2020-08-19 05:08:09,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-08-19 05:08:09,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 193 transitions. [2020-08-19 05:08:09,820 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 193 transitions. Word has length 60 [2020-08-19 05:08:09,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:08:09,820 INFO L479 AbstractCegarLoop]: Abstraction has 164 states and 193 transitions. [2020-08-19 05:08:09,821 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-19 05:08:09,821 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 193 transitions. [2020-08-19 05:08:09,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-08-19 05:08:09,832 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:08:09,832 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 05:08:09,832 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 05:08:09,832 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:08:09,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:08:09,833 INFO L82 PathProgramCache]: Analyzing trace with hash 1192401668, now seen corresponding path program 1 times [2020-08-19 05:08:09,833 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:08:09,833 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1398349397] [2020-08-19 05:08:09,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:08:09,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:10,180 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 05:08:10,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:08:10,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:10,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 05:08:10,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:10,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 05:08:10,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:10,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:08:10,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:10,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 05:08:10,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:10,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 05:08:10,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:10,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 05:08:10,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:10,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:08:10,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:10,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-19 05:08:10,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:10,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-19 05:08:10,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:10,360 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 05:08:10,360 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1398349397] [2020-08-19 05:08:10,360 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:08:10,360 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-19 05:08:10,361 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878429819] [2020-08-19 05:08:10,361 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 05:08:10,361 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:08:10,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 05:08:10,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-19 05:08:10,362 INFO L87 Difference]: Start difference. First operand 164 states and 193 transitions. Second operand 9 states. [2020-08-19 05:08:10,708 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 05:08:11,006 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 05:08:11,243 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 05:08:11,497 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 05:08:12,353 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 05:08:14,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:08:14,672 INFO L93 Difference]: Finished difference Result 549 states and 680 transitions. [2020-08-19 05:08:14,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-19 05:08:14,673 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 65 [2020-08-19 05:08:14,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:08:14,679 INFO L225 Difference]: With dead ends: 549 [2020-08-19 05:08:14,680 INFO L226 Difference]: Without dead ends: 413 [2020-08-19 05:08:14,681 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2020-08-19 05:08:14,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2020-08-19 05:08:14,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 344. [2020-08-19 05:08:14,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344 states. [2020-08-19 05:08:14,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 418 transitions. [2020-08-19 05:08:14,754 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 418 transitions. Word has length 65 [2020-08-19 05:08:14,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:08:14,754 INFO L479 AbstractCegarLoop]: Abstraction has 344 states and 418 transitions. [2020-08-19 05:08:14,754 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 05:08:14,755 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 418 transitions. [2020-08-19 05:08:14,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-08-19 05:08:14,756 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:08:14,756 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 05:08:14,757 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-19 05:08:14,757 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:08:14,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:08:14,757 INFO L82 PathProgramCache]: Analyzing trace with hash 1231670033, now seen corresponding path program 1 times [2020-08-19 05:08:14,757 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:08:14,758 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [903786424] [2020-08-19 05:08:14,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:08:14,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:15,128 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 05:08:15,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:08:15,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:15,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 05:08:15,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:15,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 05:08:15,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:15,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:08:15,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:15,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 05:08:15,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:15,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 05:08:15,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:15,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 05:08:15,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:15,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-19 05:08:15,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:15,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:08:15,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:15,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-19 05:08:15,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:15,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-19 05:08:15,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:15,226 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 05:08:15,226 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [903786424] [2020-08-19 05:08:15,226 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:08:15,226 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-19 05:08:15,227 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282395111] [2020-08-19 05:08:15,227 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 05:08:15,227 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:08:15,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 05:08:15,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-19 05:08:15,228 INFO L87 Difference]: Start difference. First operand 344 states and 418 transitions. Second operand 9 states. [2020-08-19 05:08:15,583 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 05:08:16,294 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 05:08:17,254 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 05:08:17,482 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 05:08:17,793 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 05:08:18,122 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 05:08:19,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:08:19,100 INFO L93 Difference]: Finished difference Result 891 states and 1152 transitions. [2020-08-19 05:08:19,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-19 05:08:19,100 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2020-08-19 05:08:19,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:08:19,106 INFO L225 Difference]: With dead ends: 891 [2020-08-19 05:08:19,107 INFO L226 Difference]: Without dead ends: 575 [2020-08-19 05:08:19,108 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 05:08:19,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2020-08-19 05:08:19,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 507. [2020-08-19 05:08:19,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 507 states. [2020-08-19 05:08:19,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 605 transitions. [2020-08-19 05:08:19,212 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 605 transitions. Word has length 70 [2020-08-19 05:08:19,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:08:19,212 INFO L479 AbstractCegarLoop]: Abstraction has 507 states and 605 transitions. [2020-08-19 05:08:19,213 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 05:08:19,213 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 605 transitions. [2020-08-19 05:08:19,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-08-19 05:08:19,215 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:08:19,215 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 05:08:19,215 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-19 05:08:19,216 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:08:19,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:08:19,216 INFO L82 PathProgramCache]: Analyzing trace with hash 853087743, now seen corresponding path program 1 times [2020-08-19 05:08:19,216 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:08:19,217 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2077135909] [2020-08-19 05:08:19,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:08:19,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:19,494 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 05:08:19,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:08:19,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:19,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 05:08:19,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:19,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 05:08:19,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:19,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:08:19,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:19,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 05:08:19,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:19,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 05:08:19,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:19,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 05:08:19,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:19,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:08:19,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:19,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-19 05:08:19,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:19,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:08:19,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:19,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:08:19,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:19,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:08:19,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:19,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:08:19,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:19,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 05:08:19,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:19,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:08:19,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:19,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:08:19,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:19,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:08:19,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:19,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-19 05:08:19,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:19,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-19 05:08:19,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:19,687 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 05:08:19,688 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2077135909] [2020-08-19 05:08:19,688 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:08:19,688 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-19 05:08:19,688 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253344670] [2020-08-19 05:08:19,690 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 05:08:19,690 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:08:19,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 05:08:19,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-19 05:08:19,691 INFO L87 Difference]: Start difference. First operand 507 states and 605 transitions. Second operand 9 states. [2020-08-19 05:08:20,775 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 05:08:21,014 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-19 05:08:21,292 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 05:08:21,548 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 05:08:22,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:08:22,439 INFO L93 Difference]: Finished difference Result 1079 states and 1378 transitions. [2020-08-19 05:08:22,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-19 05:08:22,440 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 113 [2020-08-19 05:08:22,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:08:22,445 INFO L225 Difference]: With dead ends: 1079 [2020-08-19 05:08:22,445 INFO L226 Difference]: Without dead ends: 600 [2020-08-19 05:08:22,447 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 05:08:22,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2020-08-19 05:08:22,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 520. [2020-08-19 05:08:22,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 520 states. [2020-08-19 05:08:22,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 619 transitions. [2020-08-19 05:08:22,527 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 619 transitions. Word has length 113 [2020-08-19 05:08:22,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:08:22,528 INFO L479 AbstractCegarLoop]: Abstraction has 520 states and 619 transitions. [2020-08-19 05:08:22,528 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 05:08:22,528 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 619 transitions. [2020-08-19 05:08:22,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-08-19 05:08:22,530 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:08:22,530 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:08:22,531 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-19 05:08:22,531 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:08:22,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:08:22,531 INFO L82 PathProgramCache]: Analyzing trace with hash -1502717507, now seen corresponding path program 1 times [2020-08-19 05:08:22,532 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:08:22,532 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [742102534] [2020-08-19 05:08:22,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:08:22,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:22,824 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 05:08:22,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:08:22,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:22,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 05:08:22,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:22,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 05:08:22,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:22,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:08:22,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:22,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 05:08:22,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:22,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 05:08:22,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:22,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 05:08:22,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:22,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:08:22,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:22,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-19 05:08:22,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:22,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:08:22,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:22,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:08:22,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:22,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:08:22,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:22,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:08:22,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:23,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 05:08:23,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:23,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:08:23,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:23,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:08:23,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:23,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:08:23,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:23,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-19 05:08:23,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:23,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-19 05:08:23,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:23,058 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 05:08:23,059 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [742102534] [2020-08-19 05:08:23,060 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:08:23,060 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-19 05:08:23,061 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142212892] [2020-08-19 05:08:23,062 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-19 05:08:23,062 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:08:23,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-19 05:08:23,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-08-19 05:08:23,064 INFO L87 Difference]: Start difference. First operand 520 states and 619 transitions. Second operand 11 states. [2020-08-19 05:08:23,626 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 05:08:23,875 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 05:08:24,096 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 05:08:24,906 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 05:08:25,187 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 05:08:25,434 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 05:08:26,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:08:26,629 INFO L93 Difference]: Finished difference Result 1102 states and 1402 transitions. [2020-08-19 05:08:26,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-19 05:08:26,630 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 113 [2020-08-19 05:08:26,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:08:26,634 INFO L225 Difference]: With dead ends: 1102 [2020-08-19 05:08:26,634 INFO L226 Difference]: Without dead ends: 610 [2020-08-19 05:08:26,636 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 05:08:26,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2020-08-19 05:08:26,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 528. [2020-08-19 05:08:26,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2020-08-19 05:08:26,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 627 transitions. [2020-08-19 05:08:26,726 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 627 transitions. Word has length 113 [2020-08-19 05:08:26,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:08:26,727 INFO L479 AbstractCegarLoop]: Abstraction has 528 states and 627 transitions. [2020-08-19 05:08:26,727 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-19 05:08:26,727 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 627 transitions. [2020-08-19 05:08:26,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-08-19 05:08:26,729 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:08:26,729 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 05:08:26,729 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-19 05:08:26,730 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:08:26,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:08:26,730 INFO L82 PathProgramCache]: Analyzing trace with hash -733547492, now seen corresponding path program 1 times [2020-08-19 05:08:26,730 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:08:26,730 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1415075330] [2020-08-19 05:08:26,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:08:26,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:27,011 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 05:08:27,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:08:27,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:27,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 05:08:27,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:27,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 05:08:27,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:27,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:08:27,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:27,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 05:08:27,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:27,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 05:08:27,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:27,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 05:08:27,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:27,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:08:27,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:27,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-19 05:08:27,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:27,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:08:27,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:27,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:08:27,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:27,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:08:27,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:27,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:08:27,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:27,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 05:08:27,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:27,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:08:27,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:27,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:08:27,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:27,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:08:27,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:27,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-19 05:08:27,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:27,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-19 05:08:27,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:27,194 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 05:08:27,195 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1415075330] [2020-08-19 05:08:27,195 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:08:27,195 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-19 05:08:27,195 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045398737] [2020-08-19 05:08:27,196 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-19 05:08:27,196 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:08:27,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-19 05:08:27,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-19 05:08:27,197 INFO L87 Difference]: Start difference. First operand 528 states and 627 transitions. Second operand 7 states. [2020-08-19 05:08:27,701 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 05:08:28,257 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 05:08:30,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:08:30,898 INFO L93 Difference]: Finished difference Result 1603 states and 2056 transitions. [2020-08-19 05:08:30,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-19 05:08:30,899 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 113 [2020-08-19 05:08:30,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:08:30,910 INFO L225 Difference]: With dead ends: 1603 [2020-08-19 05:08:30,910 INFO L226 Difference]: Without dead ends: 1103 [2020-08-19 05:08:30,914 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 45 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-08-19 05:08:30,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1103 states. [2020-08-19 05:08:31,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1103 to 1025. [2020-08-19 05:08:31,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1025 states. [2020-08-19 05:08:31,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1239 transitions. [2020-08-19 05:08:31,123 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1239 transitions. Word has length 113 [2020-08-19 05:08:31,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:08:31,124 INFO L479 AbstractCegarLoop]: Abstraction has 1025 states and 1239 transitions. [2020-08-19 05:08:31,124 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-19 05:08:31,124 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1239 transitions. [2020-08-19 05:08:31,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-08-19 05:08:31,128 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:08:31,129 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 05:08:31,129 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-19 05:08:31,129 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:08:31,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:08:31,129 INFO L82 PathProgramCache]: Analyzing trace with hash 216342370, now seen corresponding path program 1 times [2020-08-19 05:08:31,130 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:08:31,130 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [129250044] [2020-08-19 05:08:31,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:08:31,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:31,481 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 05:08:31,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:08:31,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:31,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 05:08:31,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:31,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 05:08:31,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:31,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:08:31,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:31,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 05:08:31,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:31,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 05:08:31,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:31,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 05:08:31,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:31,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-19 05:08:31,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:31,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:08:31,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:31,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-08-19 05:08:31,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:31,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:08:31,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:31,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:08:31,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:31,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:08:31,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:31,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:08:31,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:31,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 05:08:31,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:31,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:08:31,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:31,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:08:31,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:31,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:08:31,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:31,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-19 05:08:31,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:31,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-08-19 05:08:31,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:31,700 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 05:08:31,702 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [129250044] [2020-08-19 05:08:31,702 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:08:31,702 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-19 05:08:31,703 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427287150] [2020-08-19 05:08:31,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-19 05:08:31,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:08:31,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-19 05:08:31,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-08-19 05:08:31,705 INFO L87 Difference]: Start difference. First operand 1025 states and 1239 transitions. Second operand 12 states. [2020-08-19 05:08:32,211 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 05:08:32,875 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 05:08:33,595 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 05:08:33,924 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 05:08:34,183 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 05:08:34,462 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 05:08:34,737 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 05:08:37,021 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 05:08:37,328 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 05:08:38,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:08:38,139 INFO L93 Difference]: Finished difference Result 2915 states and 3744 transitions. [2020-08-19 05:08:38,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-08-19 05:08:38,140 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 117 [2020-08-19 05:08:38,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:08:38,151 INFO L225 Difference]: With dead ends: 2915 [2020-08-19 05:08:38,151 INFO L226 Difference]: Without dead ends: 2120 [2020-08-19 05:08:38,155 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2020-08-19 05:08:38,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2120 states. [2020-08-19 05:08:38,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2120 to 1808. [2020-08-19 05:08:38,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1808 states. [2020-08-19 05:08:38,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1808 states to 1808 states and 2166 transitions. [2020-08-19 05:08:38,556 INFO L78 Accepts]: Start accepts. Automaton has 1808 states and 2166 transitions. Word has length 117 [2020-08-19 05:08:38,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:08:38,563 INFO L479 AbstractCegarLoop]: Abstraction has 1808 states and 2166 transitions. [2020-08-19 05:08:38,564 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-19 05:08:38,564 INFO L276 IsEmpty]: Start isEmpty. Operand 1808 states and 2166 transitions. [2020-08-19 05:08:38,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-08-19 05:08:38,570 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:08:38,571 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 05:08:38,571 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-19 05:08:38,571 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:08:38,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:08:38,572 INFO L82 PathProgramCache]: Analyzing trace with hash -1963590153, now seen corresponding path program 1 times [2020-08-19 05:08:38,572 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:08:38,572 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [201114295] [2020-08-19 05:08:38,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:08:38,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:38,920 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 05:08:38,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:08:38,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:38,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 05:08:38,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:38,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 05:08:38,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:38,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:08:38,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:38,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 05:08:38,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:38,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 05:08:38,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:38,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 05:08:38,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:38,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-19 05:08:39,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:39,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:08:39,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:39,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:08:39,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:39,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 05:08:39,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:39,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:08:39,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:39,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:08:39,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:39,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:08:39,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:39,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:08:39,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:39,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 05:08:39,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:39,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:08:39,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:39,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:08:39,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:39,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:08:39,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:39,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-08-19 05:08:39,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:39,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:08:39,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:39,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-19 05:08:39,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:39,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:08:39,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:39,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-19 05:08:39,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:39,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-08-19 05:08:39,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:39,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:08:39,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:39,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:08:39,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:39,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-19 05:08:39,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:39,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:08:39,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:39,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:08:39,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:39,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 05:08:39,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:39,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:08:39,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:39,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-08-19 05:08:39,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:39,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-08-19 05:08:39,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:39,224 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 05:08:39,224 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [201114295] [2020-08-19 05:08:39,224 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 05:08:39,225 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-19 05:08:39,225 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406824653] [2020-08-19 05:08:39,225 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-19 05:08:39,225 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:08:39,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-19 05:08:39,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-08-19 05:08:39,226 INFO L87 Difference]: Start difference. First operand 1808 states and 2166 transitions. Second operand 16 states. [2020-08-19 05:08:39,927 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 05:08:40,247 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-19 05:08:40,519 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-19 05:08:40,762 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-19 05:08:41,478 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 05:08:41,793 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 05:08:42,138 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-19 05:08:42,431 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-19 05:08:43,840 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 05:08:44,412 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 05:08:44,687 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 05:08:45,016 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 05:08:45,568 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 05:08:45,960 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 05:08:46,710 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 05:08:46,980 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-19 05:08:47,605 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-19 05:08:48,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:08:48,456 INFO L93 Difference]: Finished difference Result 3877 states and 4776 transitions. [2020-08-19 05:08:48,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-08-19 05:08:48,469 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 195 [2020-08-19 05:08:48,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:08:48,483 INFO L225 Difference]: With dead ends: 3877 [2020-08-19 05:08:48,484 INFO L226 Difference]: Without dead ends: 2287 [2020-08-19 05:08:48,494 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 665 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=589, Invalid=2167, Unknown=0, NotChecked=0, Total=2756 [2020-08-19 05:08:48,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2287 states. [2020-08-19 05:08:48,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2287 to 2095. [2020-08-19 05:08:48,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2095 states. [2020-08-19 05:08:48,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2095 states to 2095 states and 2456 transitions. [2020-08-19 05:08:48,870 INFO L78 Accepts]: Start accepts. Automaton has 2095 states and 2456 transitions. Word has length 195 [2020-08-19 05:08:48,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:08:48,871 INFO L479 AbstractCegarLoop]: Abstraction has 2095 states and 2456 transitions. [2020-08-19 05:08:48,871 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-19 05:08:48,871 INFO L276 IsEmpty]: Start isEmpty. Operand 2095 states and 2456 transitions. [2020-08-19 05:08:48,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2020-08-19 05:08:48,884 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:08:48,885 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 05:08:48,885 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-19 05:08:48,885 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:08:48,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:08:48,886 INFO L82 PathProgramCache]: Analyzing trace with hash 905718191, now seen corresponding path program 1 times [2020-08-19 05:08:48,886 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:08:48,888 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2051324916] [2020-08-19 05:08:48,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:08:48,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,208 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 05:08:49,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:08:49,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 05:08:49,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 05:08:49,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:08:49,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 05:08:49,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 05:08:49,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 05:08:49,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-19 05:08:49,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:08:49,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:08:49,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 05:08:49,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:08:49,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:08:49,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:08:49,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:08:49,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 05:08:49,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:08:49,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:08:49,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:08:49,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-08-19 05:08:49,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:08:49,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-19 05:08:49,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:08:49,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:08:49,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 05:08:49,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-19 05:08:49,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:08:49,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:08:49,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-19 05:08:49,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:08:49,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:08:49,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 05:08:49,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:08:49,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-19 05:08:49,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:08:49,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-08-19 05:08:49,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:08:49,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:08:49,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 05:08:49,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-19 05:08:49,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:08:49,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:08:49,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-19 05:08:49,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-19 05:08:49,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:08:49,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2020-08-19 05:08:49,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2020-08-19 05:08:49,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:08:49,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2020-08-19 05:08:49,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:08:49,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:08:49,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:08:49,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:08:49,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 05:08:49,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:08:49,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:08:49,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:08:49,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2020-08-19 05:08:49,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-08-19 05:08:49,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:08:49,947 INFO L134 CoverageAnalysis]: Checked inductivity of 332 backedges. 80 proven. 7 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2020-08-19 05:08:49,949 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2051324916] [2020-08-19 05:08:49,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 05:08:49,949 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-08-19 05:08:49,950 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974362093] [2020-08-19 05:08:49,951 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-08-19 05:08:49,951 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:08:49,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-08-19 05:08:49,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-08-19 05:08:49,952 INFO L87 Difference]: Start difference. First operand 2095 states and 2456 transitions. Second operand 14 states. [2020-08-19 05:08:50,739 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 05:08:51,664 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 05:08:53,605 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 05:08:53,946 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 05:08:54,224 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 05:08:54,509 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-19 05:08:54,800 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-19 05:08:55,064 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-19 05:08:56,123 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 05:08:56,610 WARN L193 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 194 [2020-08-19 05:08:56,910 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-19 05:08:57,173 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-08-19 05:08:58,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:08:58,751 INFO L93 Difference]: Finished difference Result 6312 states and 7560 transitions. [2020-08-19 05:08:58,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-08-19 05:08:58,752 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 335 [2020-08-19 05:08:58,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:08:58,784 INFO L225 Difference]: With dead ends: 6312 [2020-08-19 05:08:58,785 INFO L226 Difference]: Without dead ends: 4253 [2020-08-19 05:08:58,792 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 128 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=316, Invalid=1244, Unknown=0, NotChecked=0, Total=1560 [2020-08-19 05:08:58,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4253 states. [2020-08-19 05:08:59,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4253 to 4145. [2020-08-19 05:08:59,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4145 states. [2020-08-19 05:08:59,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4145 states to 4145 states and 4794 transitions. [2020-08-19 05:08:59,626 INFO L78 Accepts]: Start accepts. Automaton has 4145 states and 4794 transitions. Word has length 335 [2020-08-19 05:08:59,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:08:59,627 INFO L479 AbstractCegarLoop]: Abstraction has 4145 states and 4794 transitions. [2020-08-19 05:08:59,627 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-08-19 05:08:59,628 INFO L276 IsEmpty]: Start isEmpty. Operand 4145 states and 4794 transitions. [2020-08-19 05:08:59,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2020-08-19 05:08:59,655 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:08:59,656 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-08-19 05:08:59,656 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-19 05:08:59,656 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:08:59,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:08:59,658 INFO L82 PathProgramCache]: Analyzing trace with hash 1110168133, now seen corresponding path program 1 times [2020-08-19 05:08:59,658 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:08:59,658 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2087798010] [2020-08-19 05:08:59,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:08:59,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,144 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 05:09:00,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:09:00,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 05:09:00,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 05:09:00,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:09:00,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 05:09:00,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 05:09:00,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 05:09:00,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-19 05:09:00,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:09:00,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:09:00,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 05:09:00,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:09:00,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:09:00,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:09:00,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:09:00,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 05:09:00,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:09:00,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:09:00,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:09:00,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-08-19 05:09:00,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:09:00,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-19 05:09:00,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:09:00,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:09:00,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 05:09:00,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-19 05:09:00,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:09:00,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:09:00,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-19 05:09:00,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:09:00,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:09:00,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 05:09:00,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:09:00,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-19 05:09:00,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:09:00,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2020-08-19 05:09:00,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-08-19 05:09:00,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:09:00,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:09:00,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 05:09:00,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-19 05:09:00,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:09:00,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:09:00,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-19 05:09:00,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-19 05:09:00,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:09:00,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2020-08-19 05:09:00,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2020-08-19 05:09:00,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:09:00,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:09:00,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 05:09:00,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:09:00,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2020-08-19 05:09:00,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2020-08-19 05:09:00,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:09:00,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2020-08-19 05:09:00,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:09:00,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:09:00,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:09:00,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:09:00,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 05:09:00,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:09:00,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:09:00,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:09:00,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2020-08-19 05:09:00,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:00,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2020-08-19 05:09:00,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:09:01,015 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 05:09:01,016 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2087798010] [2020-08-19 05:09:01,017 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 05:09:01,017 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-08-19 05:09:01,017 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159892470] [2020-08-19 05:09:01,020 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-08-19 05:09:01,020 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:09:01,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-08-19 05:09:01,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2020-08-19 05:09:01,021 INFO L87 Difference]: Start difference. First operand 4145 states and 4794 transitions. Second operand 18 states.