/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=0.4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product37.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-19 05:54:34,733 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 05:54:34,736 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 05:54:34,776 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 05:54:34,777 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 05:54:34,786 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 05:54:34,789 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 05:54:34,792 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 05:54:34,795 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 05:54:34,798 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 05:54:34,799 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 05:54:34,800 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 05:54:34,800 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 05:54:34,803 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 05:54:34,805 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 05:54:34,807 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 05:54:34,808 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 05:54:34,809 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 05:54:34,811 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 05:54:34,820 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 05:54:34,822 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 05:54:34,823 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 05:54:34,824 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 05:54:34,825 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 05:54:34,842 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-19 05:54:34,842 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-19 05:54:34,842 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-19 05:54:34,846 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-19 05:54:34,847 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-19 05:54:34,848 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-19 05:54:34,848 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-19 05:54:34,849 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-19 05:54:34,850 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-19 05:54:34,850 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-19 05:54:34,854 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-19 05:54:34,855 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-19 05:54:34,855 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-19 05:54:34,856 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-19 05:54:34,857 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 05:54:34,858 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 05:54:34,859 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 05:54:34,860 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-19 05:54:34,901 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 05:54:34,901 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 05:54:34,903 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 05:54:34,904 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 05:54:34,904 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 05:54:34,904 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 05:54:34,905 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 05:54:34,905 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 05:54:34,905 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 05:54:34,905 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 05:54:34,906 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 05:54:34,906 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 05:54:34,906 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 05:54:34,907 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 05:54:34,907 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 05:54:34,907 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 05:54:34,907 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 05:54:34,908 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 05:54:34,908 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 05:54:34,908 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 05:54:34,908 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 05:54:34,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 05:54:34,909 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 05:54:34,909 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 05:54:34,909 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 05:54:34,909 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 05:54:34,909 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 05:54:34,910 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 05:54:34,910 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 05:54:34,910 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=0.4; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4; [2020-08-19 05:54:35,236 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 05:54:35,249 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 05:54:35,253 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 05:54:35,254 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 05:54:35,255 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 05:54:35,256 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product37.cil.c [2020-08-19 05:54:35,315 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4c1b9d7ae/1eb2e3b8848345eabe8bd8a38a3e7550/FLAG6bfe531e4 [2020-08-19 05:54:35,908 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 05:54:35,909 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product37.cil.c [2020-08-19 05:54:35,929 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4c1b9d7ae/1eb2e3b8848345eabe8bd8a38a3e7550/FLAG6bfe531e4 [2020-08-19 05:54:36,181 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4c1b9d7ae/1eb2e3b8848345eabe8bd8a38a3e7550 [2020-08-19 05:54:36,190 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 05:54:36,192 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 05:54:36,193 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 05:54:36,193 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 05:54:36,197 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 05:54:36,198 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 05:54:36" (1/1) ... [2020-08-19 05:54:36,201 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f15c313 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:54:36, skipping insertion in model container [2020-08-19 05:54:36,202 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 05:54:36" (1/1) ... [2020-08-19 05:54:36,210 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 05:54:36,255 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 05:54:36,671 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 05:54:36,692 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 05:54:36,856 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 05:54:36,899 INFO L208 MainTranslator]: Completed translation [2020-08-19 05:54:36,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:54:36 WrapperNode [2020-08-19 05:54:36,901 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 05:54:36,902 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 05:54:36,902 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 05:54:36,902 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 05:54:36,915 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:54:36" (1/1) ... [2020-08-19 05:54:36,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:54:36" (1/1) ... [2020-08-19 05:54:36,937 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:54:36" (1/1) ... [2020-08-19 05:54:36,937 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:54:36" (1/1) ... [2020-08-19 05:54:36,998 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:54:36" (1/1) ... [2020-08-19 05:54:37,011 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:54:36" (1/1) ... [2020-08-19 05:54:37,016 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:54:36" (1/1) ... [2020-08-19 05:54:37,023 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 05:54:37,024 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 05:54:37,024 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 05:54:37,024 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 05:54:37,025 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:54:36" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 05:54:37,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 05:54:37,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 05:54:37,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-19 05:54:37,092 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-19 05:54:37,092 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-19 05:54:37,092 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-19 05:54:37,092 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-19 05:54:37,092 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-19 05:54:37,093 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-19 05:54:37,094 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-19 05:54:37,094 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-08-19 05:54:37,094 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-08-19 05:54:37,094 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-08-19 05:54:37,094 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-19 05:54:37,095 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-19 05:54:37,095 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-19 05:54:37,096 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-19 05:54:37,096 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 05:54:37,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-19 05:54:37,096 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-19 05:54:37,097 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-19 05:54:37,097 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-08-19 05:54:37,097 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-19 05:54:37,097 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-19 05:54:37,099 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-19 05:54:37,100 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-19 05:54:37,100 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-19 05:54:37,100 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-19 05:54:37,100 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-19 05:54:37,101 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-19 05:54:37,101 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-19 05:54:37,101 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-19 05:54:37,102 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-19 05:54:37,102 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-19 05:54:37,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-19 05:54:37,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-19 05:54:37,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-19 05:54:37,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-19 05:54:37,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-19 05:54:37,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-19 05:54:37,102 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 05:54:37,103 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-19 05:54:37,103 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-19 05:54:37,103 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-19 05:54:37,103 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-19 05:54:37,103 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-19 05:54:37,103 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-19 05:54:37,103 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-19 05:54:37,103 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-19 05:54:37,103 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-19 05:54:37,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-19 05:54:37,104 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-19 05:54:37,104 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-19 05:54:37,104 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-08-19 05:54:37,104 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-08-19 05:54:37,104 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-08-19 05:54:37,105 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-19 05:54:37,105 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-19 05:54:37,105 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-19 05:54:37,105 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-19 05:54:37,105 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-19 05:54:37,105 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-19 05:54:37,106 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-19 05:54:37,106 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-19 05:54:37,106 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-19 05:54:37,106 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-19 05:54:37,106 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 05:54:37,106 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-19 05:54:37,107 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-19 05:54:37,107 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-19 05:54:37,107 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-19 05:54:37,108 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-19 05:54:37,108 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-08-19 05:54:37,108 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-19 05:54:37,108 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-19 05:54:37,109 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-19 05:54:37,110 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-19 05:54:37,110 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-19 05:54:37,110 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-19 05:54:37,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-19 05:54:37,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-19 05:54:37,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-19 05:54:37,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-19 05:54:37,111 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-19 05:54:37,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-19 05:54:37,111 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-19 05:54:37,111 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-19 05:54:37,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-19 05:54:37,111 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-19 05:54:37,111 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-19 05:54:37,112 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-19 05:54:37,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 05:54:37,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-19 05:54:37,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 05:54:38,296 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 05:54:38,296 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-19 05:54:38,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 05:54:38 BoogieIcfgContainer [2020-08-19 05:54:38,302 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 05:54:38,303 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 05:54:38,304 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 05:54:38,307 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 05:54:38,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 05:54:36" (1/3) ... [2020-08-19 05:54:38,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66cd8b40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 05:54:38, skipping insertion in model container [2020-08-19 05:54:38,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:54:36" (2/3) ... [2020-08-19 05:54:38,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66cd8b40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 05:54:38, skipping insertion in model container [2020-08-19 05:54:38,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 05:54:38" (3/3) ... [2020-08-19 05:54:38,311 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product37.cil.c [2020-08-19 05:54:38,321 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 05:54:38,330 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 05:54:38,344 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 05:54:38,370 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 05:54:38,371 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 05:54:38,371 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 05:54:38,371 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 05:54:38,371 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 05:54:38,371 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 05:54:38,371 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 05:54:38,372 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 05:54:38,396 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states. [2020-08-19 05:54:38,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-08-19 05:54:38,407 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:54:38,408 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 05:54:38,409 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:54:38,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:54:38,416 INFO L82 PathProgramCache]: Analyzing trace with hash 1869542645, now seen corresponding path program 1 times [2020-08-19 05:54:38,426 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:54:38,426 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1503356628] [2020-08-19 05:54:38,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:54:38,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:39,247 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 05:54:39,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:54:39,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:39,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 05:54:39,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:39,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 05:54:39,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:39,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:54:39,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:39,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 05:54:39,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:39,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 05:54:39,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:39,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 05:54:39,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:39,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:54:39,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:39,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-19 05:54:39,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:39,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-19 05:54:39,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:39,443 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 05:54:39,444 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1503356628] [2020-08-19 05:54:39,447 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:54:39,447 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-19 05:54:39,448 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817936691] [2020-08-19 05:54:39,456 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-19 05:54:39,457 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:54:39,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-19 05:54:39,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-19 05:54:39,475 INFO L87 Difference]: Start difference. First operand 179 states. Second operand 4 states. [2020-08-19 05:54:40,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:54:40,608 INFO L93 Difference]: Finished difference Result 299 states and 383 transitions. [2020-08-19 05:54:40,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-19 05:54:40,610 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-08-19 05:54:40,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:54:40,626 INFO L225 Difference]: With dead ends: 299 [2020-08-19 05:54:40,627 INFO L226 Difference]: Without dead ends: 164 [2020-08-19 05:54:40,632 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-19 05:54:40,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2020-08-19 05:54:40,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 136. [2020-08-19 05:54:40,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-08-19 05:54:40,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 159 transitions. [2020-08-19 05:54:40,731 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 159 transitions. Word has length 59 [2020-08-19 05:54:40,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:54:40,732 INFO L479 AbstractCegarLoop]: Abstraction has 136 states and 159 transitions. [2020-08-19 05:54:40,732 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-19 05:54:40,732 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 159 transitions. [2020-08-19 05:54:40,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-08-19 05:54:40,736 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:54:40,737 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 05:54:40,737 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 05:54:40,737 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:54:40,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:54:40,738 INFO L82 PathProgramCache]: Analyzing trace with hash 1007263159, now seen corresponding path program 1 times [2020-08-19 05:54:40,738 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:54:40,738 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [738779286] [2020-08-19 05:54:40,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:54:40,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:41,090 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 05:54:41,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:54:41,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:41,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 05:54:41,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:41,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 05:54:41,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:41,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:54:41,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:41,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 05:54:41,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:41,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 05:54:41,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:41,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-19 05:54:41,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:41,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:54:41,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:41,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-19 05:54:41,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:41,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-08-19 05:54:41,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:41,148 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 05:54:41,148 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [738779286] [2020-08-19 05:54:41,149 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:54:41,149 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-19 05:54:41,149 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771218610] [2020-08-19 05:54:41,151 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-19 05:54:41,151 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:54:41,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-19 05:54:41,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-19 05:54:41,152 INFO L87 Difference]: Start difference. First operand 136 states and 159 transitions. Second operand 5 states. [2020-08-19 05:54:41,692 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 05:54:42,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:54:42,577 INFO L93 Difference]: Finished difference Result 244 states and 295 transitions. [2020-08-19 05:54:42,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-19 05:54:42,578 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2020-08-19 05:54:42,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:54:42,581 INFO L225 Difference]: With dead ends: 244 [2020-08-19 05:54:42,582 INFO L226 Difference]: Without dead ends: 154 [2020-08-19 05:54:42,584 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 05:54:42,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-08-19 05:54:42,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 127. [2020-08-19 05:54:42,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-08-19 05:54:42,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 147 transitions. [2020-08-19 05:54:42,629 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 147 transitions. Word has length 60 [2020-08-19 05:54:42,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:54:42,630 INFO L479 AbstractCegarLoop]: Abstraction has 127 states and 147 transitions. [2020-08-19 05:54:42,630 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-19 05:54:42,630 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 147 transitions. [2020-08-19 05:54:42,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-08-19 05:54:42,632 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:54:42,632 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 05:54:42,633 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 05:54:42,633 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:54:42,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:54:42,633 INFO L82 PathProgramCache]: Analyzing trace with hash -706056489, now seen corresponding path program 1 times [2020-08-19 05:54:42,634 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:54:42,634 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1554726420] [2020-08-19 05:54:42,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:54:42,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:42,984 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 05:54:42,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:54:43,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:43,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 05:54:43,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:43,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 05:54:43,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:43,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:54:43,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:43,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 05:54:43,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:43,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 05:54:43,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:43,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 05:54:43,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:43,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:54:43,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:43,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-19 05:54:43,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:43,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-19 05:54:43,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:43,132 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 05:54:43,133 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1554726420] [2020-08-19 05:54:43,133 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:54:43,134 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-19 05:54:43,134 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928857795] [2020-08-19 05:54:43,134 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 05:54:43,135 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:54:43,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 05:54:43,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-19 05:54:43,136 INFO L87 Difference]: Start difference. First operand 127 states and 147 transitions. Second operand 9 states. [2020-08-19 05:54:43,570 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 05:54:43,856 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 05:54:44,096 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 05:54:44,344 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 05:54:45,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:54:45,372 INFO L93 Difference]: Finished difference Result 253 states and 310 transitions. [2020-08-19 05:54:45,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-19 05:54:45,373 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 64 [2020-08-19 05:54:45,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:54:45,375 INFO L225 Difference]: With dead ends: 253 [2020-08-19 05:54:45,376 INFO L226 Difference]: Without dead ends: 154 [2020-08-19 05:54:45,377 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-08-19 05:54:45,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-08-19 05:54:45,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 127. [2020-08-19 05:54:45,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-08-19 05:54:45,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 146 transitions. [2020-08-19 05:54:45,436 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 146 transitions. Word has length 64 [2020-08-19 05:54:45,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:54:45,437 INFO L479 AbstractCegarLoop]: Abstraction has 127 states and 146 transitions. [2020-08-19 05:54:45,437 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 05:54:45,437 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 146 transitions. [2020-08-19 05:54:45,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-08-19 05:54:45,439 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:54:45,439 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] [2020-08-19 05:54:45,440 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-19 05:54:45,440 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:54:45,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:54:45,440 INFO L82 PathProgramCache]: Analyzing trace with hash -1588822882, now seen corresponding path program 1 times [2020-08-19 05:54:45,441 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:54:45,441 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2005930752] [2020-08-19 05:54:45,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:54:45,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:45,732 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 05:54:45,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:54:45,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:45,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 05:54:45,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:45,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 05:54:45,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:45,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:54:45,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:45,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 05:54:45,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:45,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 05:54:45,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:45,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 05:54:45,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:45,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:54:45,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:45,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-19 05:54:45,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:45,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:54:45,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:45,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:54:45,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:45,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-19 05:54:45,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:45,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-19 05:54:45,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:45,830 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 05:54:45,831 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2005930752] [2020-08-19 05:54:45,831 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:54:45,831 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-19 05:54:45,831 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51007936] [2020-08-19 05:54:45,832 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-19 05:54:45,832 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:54:45,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-19 05:54:45,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-19 05:54:45,833 INFO L87 Difference]: Start difference. First operand 127 states and 146 transitions. Second operand 7 states. [2020-08-19 05:54:46,191 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 05:54:47,527 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 05:54:48,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:54:48,041 INFO L93 Difference]: Finished difference Result 352 states and 438 transitions. [2020-08-19 05:54:48,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-19 05:54:48,049 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 77 [2020-08-19 05:54:48,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:54:48,053 INFO L225 Difference]: With dead ends: 352 [2020-08-19 05:54:48,053 INFO L226 Difference]: Without dead ends: 253 [2020-08-19 05:54:48,057 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-08-19 05:54:48,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2020-08-19 05:54:48,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 210. [2020-08-19 05:54:48,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2020-08-19 05:54:48,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 241 transitions. [2020-08-19 05:54:48,100 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 241 transitions. Word has length 77 [2020-08-19 05:54:48,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:54:48,100 INFO L479 AbstractCegarLoop]: Abstraction has 210 states and 241 transitions. [2020-08-19 05:54:48,100 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-19 05:54:48,101 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 241 transitions. [2020-08-19 05:54:48,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-08-19 05:54:48,102 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:54:48,102 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] [2020-08-19 05:54:48,103 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-19 05:54:48,103 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:54:48,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:54:48,103 INFO L82 PathProgramCache]: Analyzing trace with hash -1801013738, now seen corresponding path program 1 times [2020-08-19 05:54:48,103 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:54:48,103 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [423547473] [2020-08-19 05:54:48,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:54:48,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:48,404 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 05:54:48,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:54:48,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:48,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 05:54:48,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:48,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 05:54:48,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:48,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:54:48,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:48,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 05:54:48,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:48,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 05:54:48,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:48,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 05:54:48,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:48,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:54:48,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:48,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-19 05:54:48,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:48,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:54:48,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:48,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:54:48,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:48,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:54:48,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:48,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 05:54:48,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:48,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-08-19 05:54:48,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:48,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-19 05:54:48,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:48,539 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-19 05:54:48,539 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [423547473] [2020-08-19 05:54:48,540 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:54:48,540 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-19 05:54:48,540 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567552728] [2020-08-19 05:54:48,541 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 05:54:48,541 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:54:48,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 05:54:48,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-19 05:54:48,542 INFO L87 Difference]: Start difference. First operand 210 states and 241 transitions. Second operand 9 states. [2020-08-19 05:54:48,986 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 05:54:49,610 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 05:54:50,275 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 05:54:50,600 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 05:54:50,992 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 05:54:51,215 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 05:54:51,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:54:51,754 INFO L93 Difference]: Finished difference Result 434 states and 528 transitions. [2020-08-19 05:54:51,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-19 05:54:51,754 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 91 [2020-08-19 05:54:51,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:54:51,758 INFO L225 Difference]: With dead ends: 434 [2020-08-19 05:54:51,758 INFO L226 Difference]: Without dead ends: 252 [2020-08-19 05:54:51,759 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-08-19 05:54:51,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-08-19 05:54:51,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 209. [2020-08-19 05:54:51,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-08-19 05:54:51,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 238 transitions. [2020-08-19 05:54:51,796 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 238 transitions. Word has length 91 [2020-08-19 05:54:51,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:54:51,797 INFO L479 AbstractCegarLoop]: Abstraction has 209 states and 238 transitions. [2020-08-19 05:54:51,797 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 05:54:51,797 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 238 transitions. [2020-08-19 05:54:51,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-08-19 05:54:51,798 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:54:51,798 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 05:54:51,799 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-19 05:54:51,799 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:54:51,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:54:51,799 INFO L82 PathProgramCache]: Analyzing trace with hash -1999801536, now seen corresponding path program 1 times [2020-08-19 05:54:51,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:54:51,800 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1873590465] [2020-08-19 05:54:51,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:54:51,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:52,132 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 05:54:52,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:54:52,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:52,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 05:54:52,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:52,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 05:54:52,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:52,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:54:52,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:52,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 05:54:52,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:52,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 05:54:52,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:52,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 05:54:52,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:52,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:54:52,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:52,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-19 05:54:52,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:52,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:54:52,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:52,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:54:52,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:52,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:54:52,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:52,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 05:54:52,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:52,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-08-19 05:54:52,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:52,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-19 05:54:52,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:52,279 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 05:54:52,279 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1873590465] [2020-08-19 05:54:52,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:54:52,280 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-19 05:54:52,280 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440268472] [2020-08-19 05:54:52,281 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 05:54:52,281 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:54:52,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 05:54:52,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-19 05:54:52,281 INFO L87 Difference]: Start difference. First operand 209 states and 238 transitions. Second operand 9 states. [2020-08-19 05:54:53,267 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 05:54:53,533 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 05:54:53,776 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 05:54:54,013 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 05:54:54,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:54:54,654 INFO L93 Difference]: Finished difference Result 432 states and 522 transitions. [2020-08-19 05:54:54,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-19 05:54:54,657 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 92 [2020-08-19 05:54:54,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:54:54,660 INFO L225 Difference]: With dead ends: 432 [2020-08-19 05:54:54,660 INFO L226 Difference]: Without dead ends: 251 [2020-08-19 05:54:54,661 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-08-19 05:54:54,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2020-08-19 05:54:54,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 214. [2020-08-19 05:54:54,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-08-19 05:54:54,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 243 transitions. [2020-08-19 05:54:54,703 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 243 transitions. Word has length 92 [2020-08-19 05:54:54,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:54:54,704 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 243 transitions. [2020-08-19 05:54:54,704 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 05:54:54,704 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 243 transitions. [2020-08-19 05:54:54,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-08-19 05:54:54,705 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:54:54,706 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 05:54:54,706 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-19 05:54:54,706 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:54:54,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:54:54,707 INFO L82 PathProgramCache]: Analyzing trace with hash -1298201662, now seen corresponding path program 1 times [2020-08-19 05:54:54,707 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:54:54,707 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [659289755] [2020-08-19 05:54:54,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:54:54,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:55,007 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 05:54:55,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:54:55,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:55,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 05:54:55,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:55,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 05:54:55,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:55,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:54:55,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:55,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 05:54:55,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:55,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 05:54:55,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:55,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 05:54:55,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:55,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:54:55,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:55,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-19 05:54:55,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:55,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:54:55,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:55,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:54:55,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:55,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:54:55,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:55,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 05:54:55,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:55,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-08-19 05:54:55,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:55,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-19 05:54:55,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:55,151 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 05:54:55,152 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [659289755] [2020-08-19 05:54:55,152 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:54:55,152 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-19 05:54:55,152 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518866843] [2020-08-19 05:54:55,153 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-19 05:54:55,153 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:54:55,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-19 05:54:55,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-08-19 05:54:55,154 INFO L87 Difference]: Start difference. First operand 214 states and 243 transitions. Second operand 11 states. [2020-08-19 05:54:55,783 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 05:54:56,026 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 05:54:56,251 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 05:54:56,954 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 05:54:57,202 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 05:54:57,440 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 05:54:58,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:54:58,246 INFO L93 Difference]: Finished difference Result 444 states and 542 transitions. [2020-08-19 05:54:58,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-19 05:54:58,247 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 92 [2020-08-19 05:54:58,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:54:58,249 INFO L225 Difference]: With dead ends: 444 [2020-08-19 05:54:58,249 INFO L226 Difference]: Without dead ends: 258 [2020-08-19 05:54:58,251 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 34 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 05:54:58,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2020-08-19 05:54:58,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 218. [2020-08-19 05:54:58,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-08-19 05:54:58,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 247 transitions. [2020-08-19 05:54:58,292 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 247 transitions. Word has length 92 [2020-08-19 05:54:58,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:54:58,293 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 247 transitions. [2020-08-19 05:54:58,293 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-19 05:54:58,293 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 247 transitions. [2020-08-19 05:54:58,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-08-19 05:54:58,294 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:54:58,295 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 05:54:58,295 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-19 05:54:58,295 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:54:58,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:54:58,295 INFO L82 PathProgramCache]: Analyzing trace with hash 427279235, now seen corresponding path program 1 times [2020-08-19 05:54:58,296 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:54:58,296 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2122116969] [2020-08-19 05:54:58,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:54:58,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:58,593 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 05:54:58,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:54:58,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:58,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 05:54:58,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:58,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 05:54:58,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:58,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:54:58,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:58,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 05:54:58,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:58,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 05:54:58,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:58,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 05:54:58,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:58,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:54:58,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:58,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-19 05:54:58,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:58,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:54:58,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:58,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:54:58,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:58,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:54:58,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:58,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 05:54:58,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:58,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-08-19 05:54:58,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:58,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-19 05:54:58,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:54:58,748 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 05:54:58,749 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2122116969] [2020-08-19 05:54:58,751 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:54:58,751 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-19 05:54:58,752 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515425689] [2020-08-19 05:54:58,752 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-19 05:54:58,753 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:54:58,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-19 05:54:58,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-19 05:54:58,753 INFO L87 Difference]: Start difference. First operand 218 states and 247 transitions. Second operand 7 states. [2020-08-19 05:54:59,189 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 05:54:59,696 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 05:55:01,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:55:01,395 INFO L93 Difference]: Finished difference Result 613 states and 766 transitions. [2020-08-19 05:55:01,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-19 05:55:01,395 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 92 [2020-08-19 05:55:01,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:55:01,399 INFO L225 Difference]: With dead ends: 613 [2020-08-19 05:55:01,399 INFO L226 Difference]: Without dead ends: 423 [2020-08-19 05:55:01,401 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 37 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-08-19 05:55:01,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-08-19 05:55:01,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 385. [2020-08-19 05:55:01,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2020-08-19 05:55:01,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 451 transitions. [2020-08-19 05:55:01,463 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 451 transitions. Word has length 92 [2020-08-19 05:55:01,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:55:01,463 INFO L479 AbstractCegarLoop]: Abstraction has 385 states and 451 transitions. [2020-08-19 05:55:01,463 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-19 05:55:01,464 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 451 transitions. [2020-08-19 05:55:01,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-08-19 05:55:01,465 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:55:01,465 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] [2020-08-19 05:55:01,466 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-19 05:55:01,466 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:55:01,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:55:01,466 INFO L82 PathProgramCache]: Analyzing trace with hash -1298280163, now seen corresponding path program 1 times [2020-08-19 05:55:01,466 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:55:01,467 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1293160022] [2020-08-19 05:55:01,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:55:01,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:01,788 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 05:55:01,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:55:01,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:01,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 05:55:01,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:01,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 05:55:01,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:01,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:55:01,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:01,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 05:55:01,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:01,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 05:55:01,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:01,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 05:55:01,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:01,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-19 05:55:01,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:01,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:55:01,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:01,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-08-19 05:55:01,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:01,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:55:01,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:01,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:55:01,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:01,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:55:01,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:01,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 05:55:01,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:01,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-19 05:55:01,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:01,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-19 05:55:01,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:01,971 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 05:55:01,972 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1293160022] [2020-08-19 05:55:01,972 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:55:01,972 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-19 05:55:01,972 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732423811] [2020-08-19 05:55:01,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-19 05:55:01,973 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:55:01,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-19 05:55:01,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-08-19 05:55:01,974 INFO L87 Difference]: Start difference. First operand 385 states and 451 transitions. Second operand 12 states. [2020-08-19 05:55:02,670 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 05:55:03,482 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 05:55:04,525 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 05:55:04,831 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 05:55:05,079 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 05:55:05,340 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 05:55:05,589 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 05:55:06,743 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 05:55:07,035 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 05:55:07,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:55:07,634 INFO L93 Difference]: Finished difference Result 1059 states and 1322 transitions. [2020-08-19 05:55:07,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-08-19 05:55:07,639 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 96 [2020-08-19 05:55:07,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:55:07,645 INFO L225 Difference]: With dead ends: 1059 [2020-08-19 05:55:07,645 INFO L226 Difference]: Without dead ends: 772 [2020-08-19 05:55:07,647 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2020-08-19 05:55:07,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 772 states. [2020-08-19 05:55:07,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 772 to 662. [2020-08-19 05:55:07,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 662 states. [2020-08-19 05:55:07,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 768 transitions. [2020-08-19 05:55:07,800 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 768 transitions. Word has length 96 [2020-08-19 05:55:07,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:55:07,803 INFO L479 AbstractCegarLoop]: Abstraction has 662 states and 768 transitions. [2020-08-19 05:55:07,803 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-19 05:55:07,803 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 768 transitions. [2020-08-19 05:55:07,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-08-19 05:55:07,807 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:55:07,808 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 05:55:07,808 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-19 05:55:07,808 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:55:07,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:55:07,809 INFO L82 PathProgramCache]: Analyzing trace with hash 1033047505, now seen corresponding path program 1 times [2020-08-19 05:55:07,809 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:55:07,809 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1783319816] [2020-08-19 05:55:07,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:55:07,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:08,211 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 05:55:08,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:55:08,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:08,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 05:55:08,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:08,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 05:55:08,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:08,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:55:08,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:08,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 05:55:08,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:08,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 05:55:08,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:08,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 05:55:08,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:08,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-19 05:55:08,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:08,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:55:08,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:08,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:55:08,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:08,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 05:55:08,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:08,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:55:08,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:08,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:55:08,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:08,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:55:08,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:08,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 05:55:08,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:08,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 05:55:08,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:08,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:55:08,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:08,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-19 05:55:08,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:08,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:55:08,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:08,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-19 05:55:08,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:08,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-08-19 05:55:08,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:08,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:55:08,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:08,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:55:08,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:08,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-19 05:55:08,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:08,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:55:08,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:08,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-08-19 05:55:08,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:08,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-08-19 05:55:08,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:08,583 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 21 proven. 8 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-08-19 05:55:08,583 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1783319816] [2020-08-19 05:55:08,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 05:55:08,584 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-19 05:55:08,584 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398074471] [2020-08-19 05:55:08,586 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-19 05:55:08,586 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:55:08,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-19 05:55:08,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-08-19 05:55:08,587 INFO L87 Difference]: Start difference. First operand 662 states and 768 transitions. Second operand 16 states. [2020-08-19 05:55:09,611 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-19 05:55:09,958 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-08-19 05:55:10,241 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-19 05:55:10,513 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-19 05:55:11,131 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 05:55:11,435 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-19 05:55:11,810 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-08-19 05:55:12,424 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 05:55:12,754 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-19 05:55:13,588 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 05:55:14,120 WARN L193 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 193 [2020-08-19 05:55:14,406 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 05:55:14,970 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 05:55:15,423 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 05:55:15,829 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-19 05:55:16,489 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-19 05:55:16,967 WARN L193 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 195 [2020-08-19 05:55:17,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:55:17,590 INFO L93 Difference]: Finished difference Result 1437 states and 1723 transitions. [2020-08-19 05:55:17,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-08-19 05:55:17,591 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 155 [2020-08-19 05:55:17,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:55:17,597 INFO L225 Difference]: With dead ends: 1437 [2020-08-19 05:55:17,597 INFO L226 Difference]: Without dead ends: 869 [2020-08-19 05:55:17,601 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 727 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=600, Invalid=2370, Unknown=0, NotChecked=0, Total=2970 [2020-08-19 05:55:17,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869 states. [2020-08-19 05:55:17,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 790. [2020-08-19 05:55:17,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 790 states. [2020-08-19 05:55:17,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 926 transitions. [2020-08-19 05:55:17,744 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 926 transitions. Word has length 155 [2020-08-19 05:55:17,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:55:17,745 INFO L479 AbstractCegarLoop]: Abstraction has 790 states and 926 transitions. [2020-08-19 05:55:17,745 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-19 05:55:17,745 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 926 transitions. [2020-08-19 05:55:17,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-08-19 05:55:17,753 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:55:17,754 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 05:55:17,754 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-19 05:55:17,754 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:55:17,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:55:17,755 INFO L82 PathProgramCache]: Analyzing trace with hash 1843458969, now seen corresponding path program 1 times [2020-08-19 05:55:17,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:55:17,756 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1628860681] [2020-08-19 05:55:17,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:55:17,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:18,086 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 05:55:18,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:55:18,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:18,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 05:55:18,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:18,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 05:55:18,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:18,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:55:18,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:18,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 05:55:18,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:18,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 05:55:18,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:18,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 05:55:18,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:18,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-19 05:55:18,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:18,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:55:18,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:18,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:55:18,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:18,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 05:55:18,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:18,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:55:18,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:18,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:55:18,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:18,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:55:18,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:18,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 05:55:18,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:18,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 05:55:18,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:18,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:55:18,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:18,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-19 05:55:18,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:18,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:55:18,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:18,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:55:18,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:18,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 05:55:18,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:18,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-19 05:55:18,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:18,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:55:18,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:18,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:55:18,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:18,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-19 05:55:18,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:18,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:55:18,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:18,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 05:55:18,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:18,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:55:18,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:18,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-08-19 05:55:18,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:18,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:55:18,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:18,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:55:18,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:18,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 05:55:18,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:18,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-19 05:55:18,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:18,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:55:18,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:18,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:55:18,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:18,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-19 05:55:18,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:18,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-19 05:55:18,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:18,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:55:18,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:18,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-08-19 05:55:18,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:18,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:55:18,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:18,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2020-08-19 05:55:18,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:18,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:55:18,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:18,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:55:18,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:18,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:55:18,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:18,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 05:55:18,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:18,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2020-08-19 05:55:18,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:18,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2020-08-19 05:55:18,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:18,689 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 78 proven. 29 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2020-08-19 05:55:18,689 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1628860681] [2020-08-19 05:55:18,689 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 05:55:18,690 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-08-19 05:55:18,690 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683660130] [2020-08-19 05:55:18,691 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-08-19 05:55:18,691 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:55:18,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-08-19 05:55:18,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2020-08-19 05:55:18,692 INFO L87 Difference]: Start difference. First operand 790 states and 926 transitions. Second operand 15 states. [2020-08-19 05:55:20,322 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 05:55:20,576 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 05:55:20,822 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 05:55:21,051 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 05:55:22,356 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 05:55:23,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:55:23,070 INFO L93 Difference]: Finished difference Result 2070 states and 2533 transitions. [2020-08-19 05:55:23,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-08-19 05:55:23,071 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 269 [2020-08-19 05:55:23,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:55:23,079 INFO L225 Difference]: With dead ends: 2070 [2020-08-19 05:55:23,079 INFO L226 Difference]: Without dead ends: 1221 [2020-08-19 05:55:23,082 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 95 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=230, Invalid=762, Unknown=0, NotChecked=0, Total=992 [2020-08-19 05:55:23,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1221 states. [2020-08-19 05:55:23,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1221 to 1035. [2020-08-19 05:55:23,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1035 states. [2020-08-19 05:55:23,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 1245 transitions. [2020-08-19 05:55:23,259 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 1245 transitions. Word has length 269 [2020-08-19 05:55:23,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:55:23,259 INFO L479 AbstractCegarLoop]: Abstraction has 1035 states and 1245 transitions. [2020-08-19 05:55:23,259 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-08-19 05:55:23,259 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 1245 transitions. [2020-08-19 05:55:23,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2020-08-19 05:55:23,265 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:55:23,265 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 05:55:23,266 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-19 05:55:23,266 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:55:23,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:55:23,266 INFO L82 PathProgramCache]: Analyzing trace with hash 1744332382, now seen corresponding path program 1 times [2020-08-19 05:55:23,266 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:55:23,267 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2025195214] [2020-08-19 05:55:23,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:55:23,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:23,644 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 05:55:23,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:55:23,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:23,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 05:55:23,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:23,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 05:55:23,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:23,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:55:23,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:23,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 05:55:23,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:23,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 05:55:23,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:23,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 05:55:23,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:23,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-19 05:55:23,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:23,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:55:23,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:23,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:55:23,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:23,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 05:55:23,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:23,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:55:23,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:23,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:55:23,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:23,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:55:23,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:23,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 05:55:23,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:23,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 05:55:23,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:23,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:55:23,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:23,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-19 05:55:23,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:23,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:55:23,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:23,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:55:23,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:23,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 05:55:23,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:23,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-19 05:55:23,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:23,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:55:23,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:23,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:55:23,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:23,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-19 05:55:23,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:23,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:55:23,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:23,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 05:55:23,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:23,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:55:23,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:23,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-19 05:55:23,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:23,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-08-19 05:55:23,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:23,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:55:23,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:23,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:55:23,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:23,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 05:55:23,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:23,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-19 05:55:23,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:23,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:55:23,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:24,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:55:24,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:24,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-19 05:55:24,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:24,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-19 05:55:24,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:24,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:55:24,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:24,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-08-19 05:55:24,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:24,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:55:24,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:24,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2020-08-19 05:55:24,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:24,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:55:24,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:24,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:55:24,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:24,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:55:24,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:24,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 05:55:24,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:24,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2020-08-19 05:55:24,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:24,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2020-08-19 05:55:24,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:24,161 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 85 proven. 36 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2020-08-19 05:55:24,161 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2025195214] [2020-08-19 05:55:24,161 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 05:55:24,162 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-19 05:55:24,162 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510520718] [2020-08-19 05:55:24,163 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-19 05:55:24,163 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:55:24,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-19 05:55:24,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2020-08-19 05:55:24,163 INFO L87 Difference]: Start difference. First operand 1035 states and 1245 transitions. Second operand 16 states. [2020-08-19 05:55:24,926 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 05:55:25,287 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-19 05:55:25,559 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 05:55:25,816 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 05:55:26,478 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 05:55:27,280 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 05:55:27,645 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 05:55:27,933 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 05:55:28,616 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 05:55:29,438 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 05:55:29,699 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 05:55:30,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:55:30,331 INFO L93 Difference]: Finished difference Result 1960 states and 2393 transitions. [2020-08-19 05:55:30,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-08-19 05:55:30,332 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 275 [2020-08-19 05:55:30,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:55:30,341 INFO L225 Difference]: With dead ends: 1960 [2020-08-19 05:55:30,341 INFO L226 Difference]: Without dead ends: 1038 [2020-08-19 05:55:30,346 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 319 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=297, Invalid=1185, Unknown=0, NotChecked=0, Total=1482 [2020-08-19 05:55:30,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2020-08-19 05:55:30,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 995. [2020-08-19 05:55:30,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 995 states. [2020-08-19 05:55:30,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 995 states to 995 states and 1179 transitions. [2020-08-19 05:55:30,566 INFO L78 Accepts]: Start accepts. Automaton has 995 states and 1179 transitions. Word has length 275 [2020-08-19 05:55:30,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:55:30,567 INFO L479 AbstractCegarLoop]: Abstraction has 995 states and 1179 transitions. [2020-08-19 05:55:30,567 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-19 05:55:30,567 INFO L276 IsEmpty]: Start isEmpty. Operand 995 states and 1179 transitions. [2020-08-19 05:55:30,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2020-08-19 05:55:30,574 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:55:30,574 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 05:55:30,574 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-08-19 05:55:30,574 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:55:30,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:55:30,575 INFO L82 PathProgramCache]: Analyzing trace with hash 1275818878, now seen corresponding path program 1 times [2020-08-19 05:55:30,578 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:55:30,578 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2120862872] [2020-08-19 05:55:30,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:55:30,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:30,917 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 05:55:30,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:55:30,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:30,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 05:55:30,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:30,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 05:55:30,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:30,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:55:30,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:30,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 05:55:30,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:30,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 05:55:30,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:30,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 05:55:30,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:31,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-19 05:55:31,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:31,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:55:31,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:31,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:55:31,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:31,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 05:55:31,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:31,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:55:31,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:31,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:55:31,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:31,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:55:31,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:31,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 05:55:31,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:31,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 05:55:31,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:31,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:55:31,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:31,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-19 05:55:31,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:31,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:55:31,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:31,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:55:31,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:31,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 05:55:31,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:31,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-19 05:55:31,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:31,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:55:31,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:31,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:55:31,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:31,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-19 05:55:31,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:31,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:55:31,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:31,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 05:55:31,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:31,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:55:31,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:31,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-19 05:55:31,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:31,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-08-19 05:55:31,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:31,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:55:31,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:31,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:55:31,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:31,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 05:55:31,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:31,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-19 05:55:31,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:31,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:55:31,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:31,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:55:31,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:31,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-19 05:55:31,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:31,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-19 05:55:31,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:31,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:55:31,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:31,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-08-19 05:55:31,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:31,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:55:31,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:31,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2020-08-19 05:55:31,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:31,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:55:31,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:31,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 05:55:31,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:31,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:55:31,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:31,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 05:55:31,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:31,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2020-08-19 05:55:31,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:31,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2020-08-19 05:55:31,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:55:31,322 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 68 proven. 11 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2020-08-19 05:55:31,322 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2120862872] [2020-08-19 05:55:31,322 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 05:55:31,323 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-19 05:55:31,323 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511319308] [2020-08-19 05:55:31,325 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-19 05:55:31,325 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:55:31,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-19 05:55:31,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2020-08-19 05:55:31,326 INFO L87 Difference]: Start difference. First operand 995 states and 1179 transitions. Second operand 16 states. [2020-08-19 05:55:31,992 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 05:55:32,760 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 190