/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product63.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-19 04:19:25,804 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 04:19:25,806 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 04:19:25,830 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 04:19:25,831 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 04:19:25,832 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 04:19:25,833 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 04:19:25,835 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 04:19:25,836 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 04:19:25,837 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 04:19:25,838 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 04:19:25,839 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 04:19:25,840 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 04:19:25,841 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 04:19:25,842 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 04:19:25,843 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 04:19:25,843 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 04:19:25,844 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 04:19:25,846 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 04:19:25,848 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 04:19:25,850 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 04:19:25,851 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 04:19:25,852 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 04:19:25,853 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 04:19:25,855 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-19 04:19:25,855 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-19 04:19:25,860 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-19 04:19:25,861 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-19 04:19:25,861 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-19 04:19:25,862 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-19 04:19:25,862 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-19 04:19:25,865 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-19 04:19:25,866 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-19 04:19:25,866 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-19 04:19:25,867 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-19 04:19:25,867 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-19 04:19:25,868 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-19 04:19:25,868 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-19 04:19:25,868 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 04:19:25,871 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 04:19:25,871 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 04:19:25,873 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-19 04:19:25,914 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 04:19:25,914 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 04:19:25,916 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 04:19:25,916 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 04:19:25,917 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 04:19:25,917 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 04:19:25,917 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 04:19:25,917 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 04:19:25,917 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 04:19:25,918 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 04:19:25,919 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 04:19:25,919 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 04:19:25,919 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 04:19:25,920 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 04:19:25,920 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 04:19:25,920 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 04:19:25,920 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 04:19:25,921 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 04:19:25,921 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 04:19:25,921 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 04:19:25,921 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 04:19:25,922 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 04:19:25,922 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 04:19:25,922 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 04:19:25,922 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 04:19:25,922 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 04:19:25,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 04:19:25,923 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 04:19:25,923 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 04:19:25,923 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2; [2020-08-19 04:19:26,238 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 04:19:26,251 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 04:19:26,254 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 04:19:26,256 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 04:19:26,256 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 04:19:26,257 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product63.cil.c [2020-08-19 04:19:26,317 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/df4d39946/9f145f8741e54032aa449add86ec6bc8/FLAG91c03c607 [2020-08-19 04:19:26,744 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 04:19:26,745 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product63.cil.c [2020-08-19 04:19:26,763 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/df4d39946/9f145f8741e54032aa449add86ec6bc8/FLAG91c03c607 [2020-08-19 04:19:27,087 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/df4d39946/9f145f8741e54032aa449add86ec6bc8 [2020-08-19 04:19:27,094 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 04:19:27,096 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 04:19:27,097 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 04:19:27,097 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 04:19:27,101 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 04:19:27,102 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 04:19:27" (1/1) ... [2020-08-19 04:19:27,105 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4018fc29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:19:27, skipping insertion in model container [2020-08-19 04:19:27,105 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 04:19:27" (1/1) ... [2020-08-19 04:19:27,113 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 04:19:27,173 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 04:19:27,487 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 04:19:27,591 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 04:19:27,728 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 04:19:27,768 INFO L208 MainTranslator]: Completed translation [2020-08-19 04:19:27,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:19:27 WrapperNode [2020-08-19 04:19:27,769 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 04:19:27,770 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 04:19:27,770 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 04:19:27,770 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 04:19:27,784 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:19:27" (1/1) ... [2020-08-19 04:19:27,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:19:27" (1/1) ... [2020-08-19 04:19:27,804 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:19:27" (1/1) ... [2020-08-19 04:19:27,805 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:19:27" (1/1) ... [2020-08-19 04:19:27,838 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:19:27" (1/1) ... [2020-08-19 04:19:27,849 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:19:27" (1/1) ... [2020-08-19 04:19:27,854 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:19:27" (1/1) ... [2020-08-19 04:19:27,862 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 04:19:27,862 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 04:19:27,862 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 04:19:27,862 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 04:19:27,863 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:19:27" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 04:19:27,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 04:19:27,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 04:19:27,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-19 04:19:27,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-08-19 04:19:27,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-08-19 04:19:27,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-08-19 04:19:27,942 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-19 04:19:27,943 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-19 04:19:27,943 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-19 04:19:27,944 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-19 04:19:27,944 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-19 04:19:27,944 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-19 04:19:27,944 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-19 04:19:27,945 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-19 04:19:27,945 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-19 04:19:27,946 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-19 04:19:27,946 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 04:19:27,946 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-19 04:19:27,946 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-19 04:19:27,946 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-08-19 04:19:27,946 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-08-19 04:19:27,947 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-19 04:19:27,947 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-08-19 04:19:27,947 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-19 04:19:27,947 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-19 04:19:27,948 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-19 04:19:27,948 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-19 04:19:27,948 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-19 04:19:27,949 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-19 04:19:27,949 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-08-19 04:19:27,949 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-19 04:19:27,950 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-19 04:19:27,950 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-19 04:19:27,950 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-19 04:19:27,950 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-19 04:19:27,950 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-19 04:19:27,950 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-19 04:19:27,950 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-19 04:19:27,951 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-08-19 04:19:27,951 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-19 04:19:27,951 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-19 04:19:27,951 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-19 04:19:27,951 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-19 04:19:27,951 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-19 04:19:27,951 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-19 04:19:27,952 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 04:19:27,952 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-19 04:19:27,952 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-19 04:19:27,952 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-19 04:19:27,952 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-19 04:19:27,952 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-19 04:19:27,952 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-08-19 04:19:27,953 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-08-19 04:19:27,953 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-08-19 04:19:27,953 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-19 04:19:27,953 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-19 04:19:27,954 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-19 04:19:27,954 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-19 04:19:27,954 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-19 04:19:27,954 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-19 04:19:27,955 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-19 04:19:27,955 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-19 04:19:27,955 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-19 04:19:27,955 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-19 04:19:27,955 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-19 04:19:27,955 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-19 04:19:27,955 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-19 04:19:27,955 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-19 04:19:27,956 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 04:19:27,956 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-19 04:19:27,956 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-19 04:19:27,957 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-19 04:19:27,957 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-19 04:19:27,958 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-08-19 04:19:27,958 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-19 04:19:27,958 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-19 04:19:27,959 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-19 04:19:27,959 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-19 04:19:27,959 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-19 04:19:27,959 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-08-19 04:19:27,960 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-08-19 04:19:27,960 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-08-19 04:19:27,961 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-19 04:19:27,961 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-08-19 04:19:27,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-19 04:19:27,961 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-19 04:19:27,961 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-19 04:19:27,961 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-19 04:19:27,962 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-19 04:19:27,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-19 04:19:27,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-19 04:19:27,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-19 04:19:27,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-19 04:19:27,962 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-19 04:19:27,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-19 04:19:27,963 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-19 04:19:27,963 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-19 04:19:27,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-19 04:19:27,963 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-19 04:19:27,963 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-19 04:19:27,963 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-19 04:19:27,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 04:19:27,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-19 04:19:27,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 04:19:29,183 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 04:19:29,183 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-19 04:19:29,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 04:19:29 BoogieIcfgContainer [2020-08-19 04:19:29,193 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 04:19:29,197 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 04:19:29,197 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 04:19:29,200 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 04:19:29,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 04:19:27" (1/3) ... [2020-08-19 04:19:29,201 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f6732db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 04:19:29, skipping insertion in model container [2020-08-19 04:19:29,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:19:27" (2/3) ... [2020-08-19 04:19:29,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f6732db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 04:19:29, skipping insertion in model container [2020-08-19 04:19:29,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 04:19:29" (3/3) ... [2020-08-19 04:19:29,204 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product63.cil.c [2020-08-19 04:19:29,216 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 04:19:29,226 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 04:19:29,241 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 04:19:29,275 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 04:19:29,275 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 04:19:29,275 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 04:19:29,277 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 04:19:29,277 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 04:19:29,278 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 04:19:29,278 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 04:19:29,278 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 04:19:29,306 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states. [2020-08-19 04:19:29,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-08-19 04:19:29,316 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:19:29,318 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 04:19:29,318 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:19:29,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:19:29,324 INFO L82 PathProgramCache]: Analyzing trace with hash -1893311162, now seen corresponding path program 1 times [2020-08-19 04:19:29,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:19:29,332 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [174089451] [2020-08-19 04:19:29,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:19:29,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:29,989 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 04:19:29,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:19:30,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:30,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 04:19:30,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:30,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:19:30,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:30,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:19:30,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:30,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:19:30,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:30,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 04:19:30,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:30,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 04:19:30,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:30,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:19:30,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:30,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-19 04:19:30,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:30,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-19 04:19:30,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:30,122 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 04:19:30,124 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [174089451] [2020-08-19 04:19:30,127 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:19:30,127 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-19 04:19:30,128 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636725004] [2020-08-19 04:19:30,135 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-19 04:19:30,136 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:19:30,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-19 04:19:30,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-19 04:19:30,158 INFO L87 Difference]: Start difference. First operand 212 states. Second operand 4 states. [2020-08-19 04:19:31,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:19:31,586 INFO L93 Difference]: Finished difference Result 372 states and 477 transitions. [2020-08-19 04:19:31,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-19 04:19:31,588 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-08-19 04:19:31,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:19:31,605 INFO L225 Difference]: With dead ends: 372 [2020-08-19 04:19:31,606 INFO L226 Difference]: Without dead ends: 204 [2020-08-19 04:19:31,611 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-19 04:19:31,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2020-08-19 04:19:31,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 169. [2020-08-19 04:19:31,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-08-19 04:19:31,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 201 transitions. [2020-08-19 04:19:31,757 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 201 transitions. Word has length 59 [2020-08-19 04:19:31,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:19:31,758 INFO L479 AbstractCegarLoop]: Abstraction has 169 states and 201 transitions. [2020-08-19 04:19:31,758 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-19 04:19:31,758 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 201 transitions. [2020-08-19 04:19:31,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-08-19 04:19:31,771 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:19:31,771 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 04:19:31,772 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 04:19:31,772 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:19:31,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:19:31,773 INFO L82 PathProgramCache]: Analyzing trace with hash 1978801715, now seen corresponding path program 1 times [2020-08-19 04:19:31,773 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:19:31,773 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2118669991] [2020-08-19 04:19:31,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:19:31,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:32,133 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 04:19:32,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:19:32,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:32,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 04:19:32,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:32,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:19:32,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:32,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:19:32,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:32,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:19:32,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:32,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 04:19:32,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:32,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-19 04:19:32,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:32,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:19:32,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:32,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-19 04:19:32,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:32,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-08-19 04:19:32,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:32,199 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 04:19:32,199 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2118669991] [2020-08-19 04:19:32,200 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:19:32,200 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-19 04:19:32,200 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915728869] [2020-08-19 04:19:32,203 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-19 04:19:32,203 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:19:32,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-19 04:19:32,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-19 04:19:32,204 INFO L87 Difference]: Start difference. First operand 169 states and 201 transitions. Second operand 5 states. [2020-08-19 04:19:32,680 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 04:19:33,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:19:33,794 INFO L93 Difference]: Finished difference Result 311 states and 381 transitions. [2020-08-19 04:19:33,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-19 04:19:33,794 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2020-08-19 04:19:33,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:19:33,798 INFO L225 Difference]: With dead ends: 311 [2020-08-19 04:19:33,799 INFO L226 Difference]: Without dead ends: 194 [2020-08-19 04:19:33,801 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-19 04:19:33,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2020-08-19 04:19:33,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 160. [2020-08-19 04:19:33,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-08-19 04:19:33,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 189 transitions. [2020-08-19 04:19:33,843 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 189 transitions. Word has length 60 [2020-08-19 04:19:33,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:19:33,844 INFO L479 AbstractCegarLoop]: Abstraction has 160 states and 189 transitions. [2020-08-19 04:19:33,844 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-19 04:19:33,844 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 189 transitions. [2020-08-19 04:19:33,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-08-19 04:19:33,846 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:19:33,846 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 04:19:33,846 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 04:19:33,846 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:19:33,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:19:33,847 INFO L82 PathProgramCache]: Analyzing trace with hash -532508270, now seen corresponding path program 1 times [2020-08-19 04:19:33,847 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:19:33,847 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [836280132] [2020-08-19 04:19:33,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:19:33,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:34,173 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 04:19:34,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:19:34,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:34,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 04:19:34,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:34,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:19:34,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:34,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:19:34,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:34,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:19:34,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:34,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 04:19:34,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:34,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 04:19:34,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:34,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:19:34,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:34,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-19 04:19:34,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:34,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-19 04:19:34,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:34,278 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 04:19:34,279 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [836280132] [2020-08-19 04:19:34,279 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:19:34,280 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-19 04:19:34,280 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011545800] [2020-08-19 04:19:34,281 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 04:19:34,281 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:19:34,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 04:19:34,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-19 04:19:34,282 INFO L87 Difference]: Start difference. First operand 160 states and 189 transitions. Second operand 9 states. [2020-08-19 04:19:34,626 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 04:19:34,924 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 04:19:35,166 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 04:19:35,401 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 04:19:36,289 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 04:19:38,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:19:38,474 INFO L93 Difference]: Finished difference Result 533 states and 661 transitions. [2020-08-19 04:19:38,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-19 04:19:38,483 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 64 [2020-08-19 04:19:38,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:19:38,489 INFO L225 Difference]: With dead ends: 533 [2020-08-19 04:19:38,489 INFO L226 Difference]: Without dead ends: 401 [2020-08-19 04:19:38,491 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 04:19:38,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2020-08-19 04:19:38,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 340. [2020-08-19 04:19:38,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2020-08-19 04:19:38,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 414 transitions. [2020-08-19 04:19:38,572 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 414 transitions. Word has length 64 [2020-08-19 04:19:38,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:19:38,573 INFO L479 AbstractCegarLoop]: Abstraction has 340 states and 414 transitions. [2020-08-19 04:19:38,573 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 04:19:38,573 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 414 transitions. [2020-08-19 04:19:38,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-08-19 04:19:38,575 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:19:38,575 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 04:19:38,575 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-19 04:19:38,575 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:19:38,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:19:38,576 INFO L82 PathProgramCache]: Analyzing trace with hash 216340368, now seen corresponding path program 1 times [2020-08-19 04:19:38,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:19:38,576 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2075757735] [2020-08-19 04:19:38,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:19:38,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:38,950 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 04:19:38,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:19:38,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:38,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 04:19:38,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:38,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:19:38,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:38,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:19:38,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:38,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:19:38,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:39,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 04:19:39,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:39,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 04:19:39,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:39,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-19 04:19:39,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:39,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:19:39,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:39,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-19 04:19:39,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:39,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-19 04:19:39,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:39,078 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-19 04:19:39,079 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2075757735] [2020-08-19 04:19:39,079 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:19:39,079 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-19 04:19:39,080 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94215504] [2020-08-19 04:19:39,081 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 04:19:39,081 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:19:39,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 04:19:39,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-19 04:19:39,082 INFO L87 Difference]: Start difference. First operand 340 states and 414 transitions. Second operand 9 states. [2020-08-19 04:19:39,417 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 04:19:40,052 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 04:19:41,122 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 04:19:41,360 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 04:19:41,682 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 04:19:41,986 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 04:19:42,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:19:42,970 INFO L93 Difference]: Finished difference Result 875 states and 1130 transitions. [2020-08-19 04:19:42,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-19 04:19:42,971 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2020-08-19 04:19:42,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:19:42,977 INFO L225 Difference]: With dead ends: 875 [2020-08-19 04:19:42,978 INFO L226 Difference]: Without dead ends: 563 [2020-08-19 04:19:42,980 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-08-19 04:19:42,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2020-08-19 04:19:43,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 499. [2020-08-19 04:19:43,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 499 states. [2020-08-19 04:19:43,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 597 transitions. [2020-08-19 04:19:43,084 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 597 transitions. Word has length 70 [2020-08-19 04:19:43,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:19:43,085 INFO L479 AbstractCegarLoop]: Abstraction has 499 states and 597 transitions. [2020-08-19 04:19:43,085 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 04:19:43,085 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 597 transitions. [2020-08-19 04:19:43,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-08-19 04:19:43,087 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:19:43,087 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] [2020-08-19 04:19:43,087 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-19 04:19:43,088 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:19:43,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:19:43,088 INFO L82 PathProgramCache]: Analyzing trace with hash -1357993179, now seen corresponding path program 1 times [2020-08-19 04:19:43,088 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:19:43,089 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1999499768] [2020-08-19 04:19:43,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:19:43,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:43,374 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 04:19:43,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:19:43,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:43,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 04:19:43,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:43,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:19:43,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:43,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:19:43,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:43,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:19:43,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:43,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 04:19:43,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:43,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 04:19:43,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:43,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:19:43,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:43,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-19 04:19:43,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:43,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:19:43,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:43,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:19:43,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:43,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:19:43,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:43,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:19:43,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:43,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 04:19:43,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:43,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:19:43,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:43,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:19:43,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:43,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:19:43,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:43,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-08-19 04:19:43,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:43,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-08-19 04:19:43,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:43,589 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 04:19:43,589 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1999499768] [2020-08-19 04:19:43,590 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:19:43,590 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-19 04:19:43,590 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468514431] [2020-08-19 04:19:43,591 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 04:19:43,591 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:19:43,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 04:19:43,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-19 04:19:43,592 INFO L87 Difference]: Start difference. First operand 499 states and 597 transitions. Second operand 9 states. [2020-08-19 04:19:44,642 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 04:19:44,913 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-19 04:19:45,173 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 04:19:45,417 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 04:19:46,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:19:46,341 INFO L93 Difference]: Finished difference Result 1060 states and 1356 transitions. [2020-08-19 04:19:46,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-19 04:19:46,341 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 112 [2020-08-19 04:19:46,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:19:46,349 INFO L225 Difference]: With dead ends: 1060 [2020-08-19 04:19:46,349 INFO L226 Difference]: Without dead ends: 589 [2020-08-19 04:19:46,351 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-08-19 04:19:46,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2020-08-19 04:19:46,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 512. [2020-08-19 04:19:46,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 512 states. [2020-08-19 04:19:46,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 611 transitions. [2020-08-19 04:19:46,499 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 611 transitions. Word has length 112 [2020-08-19 04:19:46,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:19:46,501 INFO L479 AbstractCegarLoop]: Abstraction has 512 states and 611 transitions. [2020-08-19 04:19:46,501 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 04:19:46,501 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 611 transitions. [2020-08-19 04:19:46,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-08-19 04:19:46,507 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:19:46,508 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] [2020-08-19 04:19:46,508 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-19 04:19:46,508 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:19:46,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:19:46,509 INFO L82 PathProgramCache]: Analyzing trace with hash 581168867, now seen corresponding path program 1 times [2020-08-19 04:19:46,509 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:19:46,509 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [330604063] [2020-08-19 04:19:46,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:19:46,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:46,851 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 04:19:46,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:19:46,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:46,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 04:19:46,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:46,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:19:46,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:46,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:19:46,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:46,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:19:46,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:46,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 04:19:46,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:46,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 04:19:46,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:46,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:19:46,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:46,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-19 04:19:46,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:46,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:19:46,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:46,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:19:46,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:46,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:19:46,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:46,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:19:46,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:47,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 04:19:47,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:47,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:19:47,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:47,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:19:47,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:47,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:19:47,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:47,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-08-19 04:19:47,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:47,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-08-19 04:19:47,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:47,051 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 04:19:47,052 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [330604063] [2020-08-19 04:19:47,053 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:19:47,053 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-19 04:19:47,053 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167451954] [2020-08-19 04:19:47,054 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-19 04:19:47,054 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:19:47,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-19 04:19:47,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-08-19 04:19:47,055 INFO L87 Difference]: Start difference. First operand 512 states and 611 transitions. Second operand 11 states. [2020-08-19 04:19:47,570 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 04:19:47,813 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 04:19:48,063 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 04:19:48,880 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 04:19:49,175 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 04:19:49,410 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 04:19:50,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:19:50,457 INFO L93 Difference]: Finished difference Result 1083 states and 1380 transitions. [2020-08-19 04:19:50,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-19 04:19:50,461 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 112 [2020-08-19 04:19:50,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:19:50,465 INFO L225 Difference]: With dead ends: 1083 [2020-08-19 04:19:50,466 INFO L226 Difference]: Without dead ends: 599 [2020-08-19 04:19:50,468 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-08-19 04:19:50,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2020-08-19 04:19:50,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 520. [2020-08-19 04:19:50,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 520 states. [2020-08-19 04:19:50,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 619 transitions. [2020-08-19 04:19:50,550 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 619 transitions. Word has length 112 [2020-08-19 04:19:50,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:19:50,551 INFO L479 AbstractCegarLoop]: Abstraction has 520 states and 619 transitions. [2020-08-19 04:19:50,551 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-19 04:19:50,551 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 619 transitions. [2020-08-19 04:19:50,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-08-19 04:19:50,553 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:19:50,553 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] [2020-08-19 04:19:50,553 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-19 04:19:50,554 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:19:50,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:19:50,554 INFO L82 PathProgramCache]: Analyzing trace with hash 1350338882, now seen corresponding path program 1 times [2020-08-19 04:19:50,554 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:19:50,555 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1473528699] [2020-08-19 04:19:50,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:19:50,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:50,815 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 04:19:50,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:19:50,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:50,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 04:19:50,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:50,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:19:50,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:50,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:19:50,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:50,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:19:50,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:50,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 04:19:50,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:50,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 04:19:50,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:50,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:19:50,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:50,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-19 04:19:50,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:50,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:19:50,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:50,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:19:50,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:50,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:19:50,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:50,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:19:50,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:50,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 04:19:50,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:50,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:19:50,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:50,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:19:50,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:50,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:19:50,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:50,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-08-19 04:19:50,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:50,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-08-19 04:19:50,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:51,016 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 04:19:51,016 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1473528699] [2020-08-19 04:19:51,020 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:19:51,020 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-19 04:19:51,020 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010510257] [2020-08-19 04:19:51,022 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-19 04:19:51,022 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:19:51,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-19 04:19:51,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-19 04:19:51,022 INFO L87 Difference]: Start difference. First operand 520 states and 619 transitions. Second operand 7 states. [2020-08-19 04:19:51,341 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 04:19:51,913 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 04:19:54,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:19:54,367 INFO L93 Difference]: Finished difference Result 1571 states and 2020 transitions. [2020-08-19 04:19:54,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-19 04:19:54,368 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 112 [2020-08-19 04:19:54,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:19:54,376 INFO L225 Difference]: With dead ends: 1571 [2020-08-19 04:19:54,376 INFO L226 Difference]: Without dead ends: 1079 [2020-08-19 04:19:54,381 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 45 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-08-19 04:19:54,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1079 states. [2020-08-19 04:19:54,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1079 to 1005. [2020-08-19 04:19:54,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1005 states. [2020-08-19 04:19:54,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1219 transitions. [2020-08-19 04:19:54,559 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1219 transitions. Word has length 112 [2020-08-19 04:19:54,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:19:54,559 INFO L479 AbstractCegarLoop]: Abstraction has 1005 states and 1219 transitions. [2020-08-19 04:19:54,559 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-19 04:19:54,559 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1219 transitions. [2020-08-19 04:19:54,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-08-19 04:19:54,568 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:19:54,568 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] [2020-08-19 04:19:54,568 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-19 04:19:54,569 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:19:54,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:19:54,569 INFO L82 PathProgramCache]: Analyzing trace with hash -1975342852, now seen corresponding path program 1 times [2020-08-19 04:19:54,569 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:19:54,570 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2124147802] [2020-08-19 04:19:54,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:19:54,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:54,899 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 04:19:54,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:19:54,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:54,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 04:19:54,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:54,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:19:54,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:54,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:19:54,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:54,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:19:54,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:54,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 04:19:54,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:54,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 04:19:54,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:55,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-19 04:19:55,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:55,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:19:55,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:55,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-08-19 04:19:55,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:55,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:19:55,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:55,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:19:55,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:55,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:19:55,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:55,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:19:55,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:55,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 04:19:55,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:55,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:19:55,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:55,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:19:55,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:55,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:19:55,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:55,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-08-19 04:19:55,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:55,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-08-19 04:19:55,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:19:55,072 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 04:19:55,073 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2124147802] [2020-08-19 04:19:55,073 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:19:55,073 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-19 04:19:55,073 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232537353] [2020-08-19 04:19:55,074 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-19 04:19:55,074 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:19:55,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-19 04:19:55,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-08-19 04:19:55,075 INFO L87 Difference]: Start difference. First operand 1005 states and 1219 transitions. Second operand 12 states. [2020-08-19 04:19:55,679 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 04:19:56,617 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 04:19:57,504 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 04:19:57,840 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 04:19:58,097 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 04:19:58,403 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 04:19:58,684 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 04:20:01,105 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 04:20:01,465 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 04:20:02,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:20:02,418 INFO L93 Difference]: Finished difference Result 2851 states and 3676 transitions. [2020-08-19 04:20:02,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-08-19 04:20:02,419 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 116 [2020-08-19 04:20:02,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:20:02,432 INFO L225 Difference]: With dead ends: 2851 [2020-08-19 04:20:02,432 INFO L226 Difference]: Without dead ends: 2072 [2020-08-19 04:20:02,436 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2020-08-19 04:20:02,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2072 states. [2020-08-19 04:20:02,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2072 to 1772. [2020-08-19 04:20:02,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1772 states. [2020-08-19 04:20:02,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1772 states to 1772 states and 2130 transitions. [2020-08-19 04:20:02,791 INFO L78 Accepts]: Start accepts. Automaton has 1772 states and 2130 transitions. Word has length 116 [2020-08-19 04:20:02,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:20:02,793 INFO L479 AbstractCegarLoop]: Abstraction has 1772 states and 2130 transitions. [2020-08-19 04:20:02,793 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-19 04:20:02,793 INFO L276 IsEmpty]: Start isEmpty. Operand 1772 states and 2130 transitions. [2020-08-19 04:20:02,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-08-19 04:20:02,799 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:20:02,800 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 04:20:02,800 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-19 04:20:02,800 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:20:02,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:20:02,801 INFO L82 PathProgramCache]: Analyzing trace with hash -283315442, now seen corresponding path program 1 times [2020-08-19 04:20:02,801 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:20:02,801 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2066114771] [2020-08-19 04:20:02,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:20:02,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:03,131 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 04:20:03,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:20:03,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:03,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 04:20:03,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:03,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:20:03,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:03,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:20:03,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:03,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:20:03,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:03,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 04:20:03,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:03,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 04:20:03,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:03,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-19 04:20:03,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:03,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:20:03,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:03,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:20:03,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:03,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 04:20:03,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:03,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:20:03,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:03,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:20:03,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:03,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:20:03,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:03,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:03,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:03,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 04:20:03,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:03,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:03,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:03,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:03,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:03,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:20:03,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:03,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-08-19 04:20:03,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:03,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:03,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:03,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-19 04:20:03,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:03,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:20:03,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:03,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-08-19 04:20:03,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:03,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-19 04:20:03,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:03,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:20:03,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:03,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:03,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:03,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-19 04:20:03,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:03,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:20:03,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:03,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:03,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:03,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 04:20:03,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:03,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:20:03,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:03,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-08-19 04:20:03,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:03,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-08-19 04:20:03,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:03,677 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 21 proven. 10 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-08-19 04:20:03,677 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2066114771] [2020-08-19 04:20:03,678 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 04:20:03,678 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-19 04:20:03,678 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25675411] [2020-08-19 04:20:03,679 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-19 04:20:03,679 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:20:03,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-19 04:20:03,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-08-19 04:20:03,680 INFO L87 Difference]: Start difference. First operand 1772 states and 2130 transitions. Second operand 16 states. [2020-08-19 04:20:04,399 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 04:20:04,896 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-19 04:20:05,302 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-19 04:20:05,681 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-19 04:20:06,403 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 04:20:06,766 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 04:20:07,174 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-19 04:20:07,479 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-19 04:20:08,923 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 04:20:09,483 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 04:20:09,809 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 04:20:10,189 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 04:20:10,744 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 04:20:11,158 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 04:20:11,944 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 04:20:12,270 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-19 04:20:12,841 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-19 04:20:13,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:20:13,691 INFO L93 Difference]: Finished difference Result 3775 states and 4672 transitions. [2020-08-19 04:20:13,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-08-19 04:20:13,697 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 193 [2020-08-19 04:20:13,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:20:13,710 INFO L225 Difference]: With dead ends: 3775 [2020-08-19 04:20:13,710 INFO L226 Difference]: Without dead ends: 2217 [2020-08-19 04:20:13,717 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 665 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=589, Invalid=2167, Unknown=0, NotChecked=0, Total=2756 [2020-08-19 04:20:13,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2217 states. [2020-08-19 04:20:14,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2217 to 2039. [2020-08-19 04:20:14,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2039 states. [2020-08-19 04:20:14,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2039 states to 2039 states and 2400 transitions. [2020-08-19 04:20:14,100 INFO L78 Accepts]: Start accepts. Automaton has 2039 states and 2400 transitions. Word has length 193 [2020-08-19 04:20:14,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:20:14,103 INFO L479 AbstractCegarLoop]: Abstraction has 2039 states and 2400 transitions. [2020-08-19 04:20:14,103 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-19 04:20:14,103 INFO L276 IsEmpty]: Start isEmpty. Operand 2039 states and 2400 transitions. [2020-08-19 04:20:14,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2020-08-19 04:20:14,115 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:20:14,116 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 04:20:14,116 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-19 04:20:14,116 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:20:14,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:20:14,117 INFO L82 PathProgramCache]: Analyzing trace with hash -1594839617, now seen corresponding path program 1 times [2020-08-19 04:20:14,117 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:20:14,117 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1649801908] [2020-08-19 04:20:14,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:20:14,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,436 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 04:20:14,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:20:14,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 04:20:14,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:20:14,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:20:14,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:20:14,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 04:20:14,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 04:20:14,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-19 04:20:14,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:20:14,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:20:14,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 04:20:14,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:20:14,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:20:14,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:20:14,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:14,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 04:20:14,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:14,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:14,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:20:14,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-08-19 04:20:14,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:14,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-08-19 04:20:14,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:20:14,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:20:14,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:20:14,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-19 04:20:14,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:20:14,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:14,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-19 04:20:14,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:20:14,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:14,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 04:20:14,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:20:14,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-19 04:20:14,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:14,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2020-08-19 04:20:14,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:20:14,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:20:14,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:20:14,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-19 04:20:14,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:20:14,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:14,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-19 04:20:14,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-19 04:20:14,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:14,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-08-19 04:20:14,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2020-08-19 04:20:14,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:20:14,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2020-08-19 04:20:14,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:20:14,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:20:14,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:20:14,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:14,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 04:20:14,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:14,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:14,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:20:14,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2020-08-19 04:20:14,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2020-08-19 04:20:14,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:14,899 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 75 proven. 21 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2020-08-19 04:20:14,899 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1649801908] [2020-08-19 04:20:14,900 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 04:20:14,900 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-19 04:20:14,900 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317014430] [2020-08-19 04:20:14,901 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-19 04:20:14,901 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:20:14,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-19 04:20:14,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2020-08-19 04:20:14,902 INFO L87 Difference]: Start difference. First operand 2039 states and 2400 transitions. Second operand 16 states. [2020-08-19 04:20:15,431 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 04:20:16,301 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 04:20:18,059 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 04:20:18,391 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 04:20:18,654 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 04:20:18,992 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 04:20:19,285 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 04:20:19,559 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 04:20:20,888 WARN L193 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-08-19 04:20:21,361 WARN L193 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-08-19 04:20:21,902 WARN L193 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 192 [2020-08-19 04:20:22,398 WARN L193 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 192 [2020-08-19 04:20:23,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:20:23,563 INFO L93 Difference]: Finished difference Result 5889 states and 7114 transitions. [2020-08-19 04:20:23,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-08-19 04:20:23,568 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 331 [2020-08-19 04:20:23,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:20:23,590 INFO L225 Difference]: With dead ends: 5889 [2020-08-19 04:20:23,590 INFO L226 Difference]: Without dead ends: 3886 [2020-08-19 04:20:23,597 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 385 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=376, Invalid=1346, Unknown=0, NotChecked=0, Total=1722 [2020-08-19 04:20:23,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3886 states. [2020-08-19 04:20:24,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3886 to 3783. [2020-08-19 04:20:24,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3783 states. [2020-08-19 04:20:24,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3783 states to 3783 states and 4382 transitions. [2020-08-19 04:20:24,207 INFO L78 Accepts]: Start accepts. Automaton has 3783 states and 4382 transitions. Word has length 331 [2020-08-19 04:20:24,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:20:24,207 INFO L479 AbstractCegarLoop]: Abstraction has 3783 states and 4382 transitions. [2020-08-19 04:20:24,207 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-19 04:20:24,208 INFO L276 IsEmpty]: Start isEmpty. Operand 3783 states and 4382 transitions. [2020-08-19 04:20:24,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2020-08-19 04:20:24,224 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:20:24,224 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 04:20:24,225 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-19 04:20:24,225 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:20:24,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:20:24,225 INFO L82 PathProgramCache]: Analyzing trace with hash 890281511, now seen corresponding path program 1 times [2020-08-19 04:20:24,226 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:20:24,226 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [318955216] [2020-08-19 04:20:24,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:20:24,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,556 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 04:20:24,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:20:24,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 04:20:24,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:20:24,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:20:24,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:20:24,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 04:20:24,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 04:20:24,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-19 04:20:24,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:20:24,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:20:24,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 04:20:24,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:20:24,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:20:24,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:20:24,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:24,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 04:20:24,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:24,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:24,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:20:24,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-08-19 04:20:24,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:24,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-08-19 04:20:24,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:20:24,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:20:24,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:20:24,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-19 04:20:24,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:20:24,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:24,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-19 04:20:24,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:20:24,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:24,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 04:20:24,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:20:24,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-19 04:20:24,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:24,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-08-19 04:20:24,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-08-19 04:20:24,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:20:24,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:20:24,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:20:24,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-19 04:20:24,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:20:24,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:24,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-19 04:20:24,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-19 04:20:24,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:24,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2020-08-19 04:20:24,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:20:24,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2020-08-19 04:20:24,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:20:24,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:20:24,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:20:24,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:24,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 04:20:24,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:24,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:20:24,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:20:24,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2020-08-19 04:20:24,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:24,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2020-08-19 04:20:24,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:20:25,088 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 88 proven. 3 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2020-08-19 04:20:25,089 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [318955216] [2020-08-19 04:20:25,089 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 04:20:25,089 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-08-19 04:20:25,089 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102781456] [2020-08-19 04:20:25,091 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-08-19 04:20:25,091 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:20:25,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-08-19 04:20:25,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2020-08-19 04:20:25,092 INFO L87 Difference]: Start difference. First operand 3783 states and 4382 transitions. Second operand 19 states.