/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=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product45.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 23:35:54,924 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 23:35:54,929 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 23:35:54,957 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 23:35:54,957 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 23:35:54,958 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 23:35:54,960 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 23:35:54,961 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 23:35:54,963 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 23:35:54,964 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 23:35:54,965 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 23:35:54,966 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 23:35:54,966 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 23:35:54,967 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 23:35:54,968 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 23:35:54,969 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 23:35:54,970 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 23:35:54,971 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 23:35:54,973 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 23:35:54,975 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 23:35:54,976 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 23:35:54,977 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 23:35:54,978 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 23:35:54,979 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 23:35:54,984 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 23:35:54,985 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 23:35:54,985 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 23:35:54,986 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 23:35:54,986 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 23:35:54,987 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 23:35:54,987 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 23:35:54,988 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 23:35:54,989 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 23:35:54,989 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 23:35:54,991 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 23:35:54,991 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 23:35:54,992 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 23:35:54,992 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 23:35:54,992 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 23:35:54,993 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 23:35:54,993 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 23:35:54,994 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 [2020-08-21 23:35:55,017 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 23:35:55,017 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 23:35:55,018 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 23:35:55,019 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 23:35:55,019 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 23:35:55,019 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 23:35:55,019 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 23:35:55,020 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 23:35:55,020 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 23:35:55,020 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 23:35:55,020 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 23:35:55,020 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 23:35:55,021 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 23:35:55,021 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 23:35:55,021 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 23:35:55,021 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 23:35:55,021 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 23:35:55,022 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 23:35:55,022 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 23:35:55,022 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 23:35:55,022 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 23:35:55,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 23:35:55,023 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 23:35:55,023 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 23:35:55,023 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 23:35:55,023 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 23:35:55,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 23:35:55,023 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 23:35:55,024 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 23:35:55,024 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; [2020-08-21 23:35:55,331 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 23:35:55,343 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 23:35:55,346 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 23:35:55,348 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 23:35:55,349 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 23:35:55,349 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product45.cil.c [2020-08-21 23:35:55,423 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/df79e2e65/8ced44ad936b40a8bc18488592c5e316/FLAG010ff1bc7 [2020-08-21 23:35:55,982 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 23:35:55,982 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product45.cil.c [2020-08-21 23:35:55,995 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/df79e2e65/8ced44ad936b40a8bc18488592c5e316/FLAG010ff1bc7 [2020-08-21 23:35:56,264 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/df79e2e65/8ced44ad936b40a8bc18488592c5e316 [2020-08-21 23:35:56,275 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 23:35:56,277 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 23:35:56,278 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 23:35:56,278 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 23:35:56,281 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 23:35:56,282 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 11:35:56" (1/1) ... [2020-08-21 23:35:56,285 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:35:56, skipping insertion in model container [2020-08-21 23:35:56,286 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 11:35:56" (1/1) ... [2020-08-21 23:35:56,294 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 23:35:56,359 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 23:35:56,735 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 23:35:56,748 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 23:35:56,993 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 23:35:57,031 INFO L208 MainTranslator]: Completed translation [2020-08-21 23:35:57,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:35:57 WrapperNode [2020-08-21 23:35:57,032 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 23:35:57,033 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 23:35:57,033 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 23:35:57,033 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 23:35:57,047 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:35:57" (1/1) ... [2020-08-21 23:35:57,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:35:57" (1/1) ... [2020-08-21 23:35:57,068 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:35:57" (1/1) ... [2020-08-21 23:35:57,068 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:35:57" (1/1) ... [2020-08-21 23:35:57,109 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:35:57" (1/1) ... [2020-08-21 23:35:57,122 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:35:57" (1/1) ... [2020-08-21 23:35:57,127 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:35:57" (1/1) ... [2020-08-21 23:35:57,135 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 23:35:57,135 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 23:35:57,136 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 23:35:57,136 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 23:35:57,137 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:35:57" (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 [2020-08-21 23:35:57,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 23:35:57,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 23:35:57,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-21 23:35:57,211 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-21 23:35:57,211 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-21 23:35:57,211 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-21 23:35:57,211 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-21 23:35:57,212 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-21 23:35:57,212 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-21 23:35:57,212 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-21 23:35:57,212 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-21 23:35:57,212 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-21 23:35:57,212 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-21 23:35:57,213 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-21 23:35:57,213 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 23:35:57,213 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-21 23:35:57,213 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-21 23:35:57,213 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-08-21 23:35:57,213 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-21 23:35:57,214 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-08-21 23:35:57,214 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-21 23:35:57,214 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-21 23:35:57,214 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-21 23:35:57,214 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-21 23:35:57,214 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-21 23:35:57,215 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-21 23:35:57,215 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-21 23:35:57,215 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-21 23:35:57,215 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-21 23:35:57,215 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-21 23:35:57,215 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-21 23:35:57,216 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-21 23:35:57,216 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-21 23:35:57,216 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-21 23:35:57,216 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-21 23:35:57,216 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-21 23:35:57,216 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-21 23:35:57,217 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-21 23:35:57,217 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-08-21 23:35:57,217 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-08-21 23:35:57,217 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 23:35:57,217 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 23:35:57,217 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-21 23:35:57,217 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-21 23:35:57,218 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-21 23:35:57,218 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-21 23:35:57,218 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-21 23:35:57,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-21 23:35:57,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-21 23:35:57,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-21 23:35:57,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-21 23:35:57,219 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-21 23:35:57,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-21 23:35:57,219 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-21 23:35:57,219 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-21 23:35:57,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-21 23:35:57,219 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-21 23:35:57,220 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-21 23:35:57,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-21 23:35:57,220 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-21 23:35:57,220 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-21 23:35:57,220 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-21 23:35:57,221 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-21 23:35:57,221 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-21 23:35:57,221 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-21 23:35:57,221 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-21 23:35:57,221 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-21 23:35:57,222 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-21 23:35:57,222 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-08-21 23:35:57,222 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-21 23:35:57,222 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-21 23:35:57,222 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-21 23:35:57,222 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-21 23:35:57,222 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-21 23:35:57,223 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 23:35:57,223 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-21 23:35:57,223 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-21 23:35:57,223 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-21 23:35:57,223 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-21 23:35:57,223 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-21 23:35:57,224 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-21 23:35:57,224 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-21 23:35:57,224 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-08-21 23:35:57,224 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-21 23:35:57,224 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-21 23:35:57,224 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-21 23:35:57,225 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-08-21 23:35:57,225 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-21 23:35:57,225 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-08-21 23:35:57,225 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-21 23:35:57,225 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-21 23:35:57,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 23:35:57,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-21 23:35:57,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 23:35:58,417 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 23:35:58,417 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-21 23:35:58,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 11:35:58 BoogieIcfgContainer [2020-08-21 23:35:58,423 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 23:35:58,425 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 23:35:58,425 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 23:35:58,428 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 23:35:58,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 11:35:56" (1/3) ... [2020-08-21 23:35:58,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@567df8a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 11:35:58, skipping insertion in model container [2020-08-21 23:35:58,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:35:57" (2/3) ... [2020-08-21 23:35:58,430 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@567df8a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 11:35:58, skipping insertion in model container [2020-08-21 23:35:58,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 11:35:58" (3/3) ... [2020-08-21 23:35:58,432 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product45.cil.c [2020-08-21 23:35:58,443 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 23:35:58,451 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 23:35:58,465 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 23:35:58,490 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 23:35:58,490 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 23:35:58,490 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 23:35:58,490 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 23:35:58,491 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 23:35:58,491 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 23:35:58,491 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 23:35:58,491 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 23:35:58,516 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states. [2020-08-21 23:35:58,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-08-21 23:35:58,532 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:35:58,533 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:35:58,533 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:35:58,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:35:58,540 INFO L82 PathProgramCache]: Analyzing trace with hash -1016037874, now seen corresponding path program 1 times [2020-08-21 23:35:58,549 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:35:58,551 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [288830290] [2020-08-21 23:35:58,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:35:58,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:35:59,287 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 23:35:59,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:35:59,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:35:59,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 23:35:59,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:35:59,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 23:35:59,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:35:59,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 23:35:59,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:35:59,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 23:35:59,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:35:59,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 23:35:59,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:35:59,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-21 23:35:59,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:35:59,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-21 23:35:59,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:35:59,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:35:59,452 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [288830290] [2020-08-21 23:35:59,454 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:35:59,454 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-21 23:35:59,455 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806572595] [2020-08-21 23:35:59,461 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-21 23:35:59,461 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:35:59,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-21 23:35:59,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-21 23:35:59,480 INFO L87 Difference]: Start difference. First operand 178 states. Second operand 4 states. [2020-08-21 23:36:00,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:36:00,637 INFO L93 Difference]: Finished difference Result 302 states and 395 transitions. [2020-08-21 23:36:00,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-21 23:36:00,639 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-08-21 23:36:00,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:36:00,654 INFO L225 Difference]: With dead ends: 302 [2020-08-21 23:36:00,654 INFO L226 Difference]: Without dead ends: 168 [2020-08-21 23:36:00,659 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-21 23:36:00,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2020-08-21 23:36:00,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 135. [2020-08-21 23:36:00,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2020-08-21 23:36:00,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 160 transitions. [2020-08-21 23:36:00,748 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 160 transitions. Word has length 51 [2020-08-21 23:36:00,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:36:00,748 INFO L479 AbstractCegarLoop]: Abstraction has 135 states and 160 transitions. [2020-08-21 23:36:00,748 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-21 23:36:00,749 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 160 transitions. [2020-08-21 23:36:00,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-08-21 23:36:00,752 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:36:00,753 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:36:00,753 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 23:36:00,753 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:36:00,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:36:00,754 INFO L82 PathProgramCache]: Analyzing trace with hash 2062541652, now seen corresponding path program 1 times [2020-08-21 23:36:00,754 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:36:00,754 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1143264996] [2020-08-21 23:36:00,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:36:00,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:01,118 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 23:36:01,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:36:01,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:01,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 23:36:01,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:01,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 23:36:01,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:01,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 23:36:01,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:01,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 23:36:01,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:01,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 23:36:01,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:01,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 23:36:01,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:01,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-21 23:36:01,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:01,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:36:01,182 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1143264996] [2020-08-21 23:36:01,182 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:36:01,182 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-21 23:36:01,182 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526063102] [2020-08-21 23:36:01,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 23:36:01,185 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:36:01,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 23:36:01,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-21 23:36:01,185 INFO L87 Difference]: Start difference. First operand 135 states and 160 transitions. Second operand 5 states. [2020-08-21 23:36:01,668 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 23:36:02,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:36:02,630 INFO L93 Difference]: Finished difference Result 247 states and 306 transitions. [2020-08-21 23:36:02,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 23:36:02,631 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2020-08-21 23:36:02,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:36:02,635 INFO L225 Difference]: With dead ends: 247 [2020-08-21 23:36:02,635 INFO L226 Difference]: Without dead ends: 158 [2020-08-21 23:36:02,637 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-21 23:36:02,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-08-21 23:36:02,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 126. [2020-08-21 23:36:02,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-08-21 23:36:02,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 148 transitions. [2020-08-21 23:36:02,682 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 148 transitions. Word has length 52 [2020-08-21 23:36:02,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:36:02,682 INFO L479 AbstractCegarLoop]: Abstraction has 126 states and 148 transitions. [2020-08-21 23:36:02,682 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 23:36:02,682 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 148 transitions. [2020-08-21 23:36:02,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-08-21 23:36:02,685 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:36:02,685 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:36:02,685 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 23:36:02,686 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:36:02,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:36:02,686 INFO L82 PathProgramCache]: Analyzing trace with hash 1086390402, now seen corresponding path program 1 times [2020-08-21 23:36:02,686 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:36:02,687 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1495110463] [2020-08-21 23:36:02,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:36:02,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:03,018 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 23:36:03,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:36:03,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:03,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 23:36:03,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:03,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 23:36:03,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:03,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 23:36:03,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:03,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 23:36:03,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:03,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 23:36:03,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:03,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-21 23:36:03,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:03,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-21 23:36:03,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:03,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:36:03,134 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1495110463] [2020-08-21 23:36:03,134 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:36:03,135 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-21 23:36:03,135 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177314497] [2020-08-21 23:36:03,137 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 23:36:03,137 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:36:03,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 23:36:03,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-21 23:36:03,138 INFO L87 Difference]: Start difference. First operand 126 states and 148 transitions. Second operand 9 states. [2020-08-21 23:36:03,574 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 23:36:03,878 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 23:36:04,155 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 23:36:04,375 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 23:36:05,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:36:05,644 INFO L93 Difference]: Finished difference Result 256 states and 321 transitions. [2020-08-21 23:36:05,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 23:36:05,647 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 56 [2020-08-21 23:36:05,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:36:05,650 INFO L225 Difference]: With dead ends: 256 [2020-08-21 23:36:05,651 INFO L226 Difference]: Without dead ends: 158 [2020-08-21 23:36:05,652 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-08-21 23:36:05,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-08-21 23:36:05,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 126. [2020-08-21 23:36:05,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-08-21 23:36:05,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 147 transitions. [2020-08-21 23:36:05,686 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 147 transitions. Word has length 56 [2020-08-21 23:36:05,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:36:05,687 INFO L479 AbstractCegarLoop]: Abstraction has 126 states and 147 transitions. [2020-08-21 23:36:05,687 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 23:36:05,687 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 147 transitions. [2020-08-21 23:36:05,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-08-21 23:36:05,690 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:36:05,690 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:36:05,690 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 23:36:05,691 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:36:05,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:36:05,691 INFO L82 PathProgramCache]: Analyzing trace with hash -848651131, now seen corresponding path program 1 times [2020-08-21 23:36:05,691 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:36:05,692 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [137576234] [2020-08-21 23:36:05,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:36:05,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:05,989 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 23:36:05,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:36:06,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:06,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 23:36:06,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:06,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 23:36:06,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:06,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 23:36:06,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:06,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 23:36:06,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:06,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 23:36:06,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:06,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-21 23:36:06,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:06,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:36:06,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:06,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:36:06,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:06,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-08-21 23:36:06,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:06,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-08-21 23:36:06,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:06,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:36:06,146 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [137576234] [2020-08-21 23:36:06,147 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:36:06,147 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-21 23:36:06,147 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345884628] [2020-08-21 23:36:06,148 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 23:36:06,148 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:36:06,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 23:36:06,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-21 23:36:06,149 INFO L87 Difference]: Start difference. First operand 126 states and 147 transitions. Second operand 7 states. [2020-08-21 23:36:06,499 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 23:36:07,678 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 23:36:08,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:36:08,313 INFO L93 Difference]: Finished difference Result 355 states and 448 transitions. [2020-08-21 23:36:08,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-21 23:36:08,314 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 69 [2020-08-21 23:36:08,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:36:08,317 INFO L225 Difference]: With dead ends: 355 [2020-08-21 23:36:08,318 INFO L226 Difference]: Without dead ends: 257 [2020-08-21 23:36:08,320 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-08-21 23:36:08,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2020-08-21 23:36:08,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 211. [2020-08-21 23:36:08,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2020-08-21 23:36:08,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 243 transitions. [2020-08-21 23:36:08,366 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 243 transitions. Word has length 69 [2020-08-21 23:36:08,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:36:08,366 INFO L479 AbstractCegarLoop]: Abstraction has 211 states and 243 transitions. [2020-08-21 23:36:08,366 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 23:36:08,366 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 243 transitions. [2020-08-21 23:36:08,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-08-21 23:36:08,368 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:36:08,369 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:36:08,369 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 23:36:08,369 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:36:08,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:36:08,369 INFO L82 PathProgramCache]: Analyzing trace with hash -1442987939, now seen corresponding path program 1 times [2020-08-21 23:36:08,370 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:36:08,370 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [985379622] [2020-08-21 23:36:08,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:36:08,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:08,671 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 23:36:08,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:36:08,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:08,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 23:36:08,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:08,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 23:36:08,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:08,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 23:36:08,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:08,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 23:36:08,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:08,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 23:36:08,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:08,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-21 23:36:08,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:08,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:36:08,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:08,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:36:08,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:08,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:36:08,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:08,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 23:36:08,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:08,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-21 23:36:08,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:08,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-08-21 23:36:08,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:08,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:36:08,793 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [985379622] [2020-08-21 23:36:08,794 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:36:08,794 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-21 23:36:08,794 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655675356] [2020-08-21 23:36:08,796 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 23:36:08,796 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:36:08,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 23:36:08,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-21 23:36:08,797 INFO L87 Difference]: Start difference. First operand 211 states and 243 transitions. Second operand 9 states. [2020-08-21 23:36:09,264 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 23:36:10,306 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 23:36:10,649 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 23:36:11,230 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 23:36:11,453 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 23:36:12,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:36:12,496 INFO L93 Difference]: Finished difference Result 624 states and 785 transitions. [2020-08-21 23:36:12,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-08-21 23:36:12,496 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 83 [2020-08-21 23:36:12,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:36:12,505 INFO L225 Difference]: With dead ends: 624 [2020-08-21 23:36:12,505 INFO L226 Difference]: Without dead ends: 441 [2020-08-21 23:36:12,510 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2020-08-21 23:36:12,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2020-08-21 23:36:12,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 370. [2020-08-21 23:36:12,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2020-08-21 23:36:12,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 426 transitions. [2020-08-21 23:36:12,636 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 426 transitions. Word has length 83 [2020-08-21 23:36:12,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:36:12,637 INFO L479 AbstractCegarLoop]: Abstraction has 370 states and 426 transitions. [2020-08-21 23:36:12,637 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 23:36:12,637 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 426 transitions. [2020-08-21 23:36:12,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-08-21 23:36:12,639 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:36:12,640 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:36:12,640 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 23:36:12,640 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:36:12,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:36:12,640 INFO L82 PathProgramCache]: Analyzing trace with hash -142547263, now seen corresponding path program 1 times [2020-08-21 23:36:12,641 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:36:12,641 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1654022328] [2020-08-21 23:36:12,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:36:12,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:12,948 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 23:36:12,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:36:12,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:12,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 23:36:12,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:12,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 23:36:12,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:12,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 23:36:12,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:12,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 23:36:12,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:12,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 23:36:12,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:13,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-21 23:36:13,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:13,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-21 23:36:13,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:13,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:36:13,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:13,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:36:13,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:13,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:36:13,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:13,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 23:36:13,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:13,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-08-21 23:36:13,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:13,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-08-21 23:36:13,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:13,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:36:13,070 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1654022328] [2020-08-21 23:36:13,070 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:36:13,070 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-21 23:36:13,071 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448134701] [2020-08-21 23:36:13,071 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-21 23:36:13,071 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:36:13,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-21 23:36:13,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-08-21 23:36:13,072 INFO L87 Difference]: Start difference. First operand 370 states and 426 transitions. Second operand 10 states. [2020-08-21 23:36:13,539 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 23:36:14,774 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 23:36:15,744 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 23:36:15,993 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 23:36:16,283 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 23:36:16,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:36:16,664 INFO L93 Difference]: Finished difference Result 818 states and 1011 transitions. [2020-08-21 23:36:16,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-08-21 23:36:16,665 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 87 [2020-08-21 23:36:16,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:36:16,669 INFO L225 Difference]: With dead ends: 818 [2020-08-21 23:36:16,669 INFO L226 Difference]: Without dead ends: 476 [2020-08-21 23:36:16,671 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=194, Invalid=508, Unknown=0, NotChecked=0, Total=702 [2020-08-21 23:36:16,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2020-08-21 23:36:16,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 369. [2020-08-21 23:36:16,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 369 states. [2020-08-21 23:36:16,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 423 transitions. [2020-08-21 23:36:16,747 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 423 transitions. Word has length 87 [2020-08-21 23:36:16,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:36:16,748 INFO L479 AbstractCegarLoop]: Abstraction has 369 states and 423 transitions. [2020-08-21 23:36:16,748 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-21 23:36:16,748 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 423 transitions. [2020-08-21 23:36:16,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-08-21 23:36:16,750 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:36:16,750 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:36:16,750 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-21 23:36:16,750 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:36:16,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:36:16,751 INFO L82 PathProgramCache]: Analyzing trace with hash -1138633269, now seen corresponding path program 1 times [2020-08-21 23:36:16,751 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:36:16,751 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1347931570] [2020-08-21 23:36:16,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:36:16,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:16,979 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 23:36:16,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:36:16,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:17,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 23:36:17,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:17,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 23:36:17,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:17,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 23:36:17,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:17,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 23:36:17,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:17,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 23:36:17,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:17,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-21 23:36:17,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:17,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-21 23:36:17,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:17,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:36:17,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:17,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:36:17,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:17,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:36:17,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:17,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 23:36:17,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:17,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:36:17,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:17,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:36:17,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:17,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 23:36:17,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:17,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-08-21 23:36:17,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:17,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-21 23:36:17,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:17,228 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-21 23:36:17,229 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1347931570] [2020-08-21 23:36:17,230 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:36:17,230 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-21 23:36:17,231 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939518921] [2020-08-21 23:36:17,232 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-21 23:36:17,233 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:36:17,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-21 23:36:17,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-08-21 23:36:17,240 INFO L87 Difference]: Start difference. First operand 369 states and 423 transitions. Second operand 10 states. [2020-08-21 23:36:18,399 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 23:36:18,658 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-21 23:36:18,913 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 23:36:19,158 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 23:36:20,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:36:20,316 INFO L93 Difference]: Finished difference Result 825 states and 1040 transitions. [2020-08-21 23:36:20,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-21 23:36:20,317 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 103 [2020-08-21 23:36:20,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:36:20,321 INFO L225 Difference]: With dead ends: 825 [2020-08-21 23:36:20,321 INFO L226 Difference]: Without dead ends: 484 [2020-08-21 23:36:20,322 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2020-08-21 23:36:20,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2020-08-21 23:36:20,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 379. [2020-08-21 23:36:20,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2020-08-21 23:36:20,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 433 transitions. [2020-08-21 23:36:20,396 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 433 transitions. Word has length 103 [2020-08-21 23:36:20,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:36:20,396 INFO L479 AbstractCegarLoop]: Abstraction has 379 states and 433 transitions. [2020-08-21 23:36:20,396 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-21 23:36:20,396 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 433 transitions. [2020-08-21 23:36:20,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-08-21 23:36:20,398 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:36:20,398 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:36:20,399 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-21 23:36:20,399 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:36:20,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:36:20,399 INFO L82 PathProgramCache]: Analyzing trace with hash 789639433, now seen corresponding path program 1 times [2020-08-21 23:36:20,400 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:36:20,400 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2092949553] [2020-08-21 23:36:20,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:36:20,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:20,666 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 23:36:20,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:36:20,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:20,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 23:36:20,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:20,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 23:36:20,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:20,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 23:36:20,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:20,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 23:36:20,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:20,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 23:36:20,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:20,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-21 23:36:20,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:20,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-21 23:36:20,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:20,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:36:20,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:20,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:36:20,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:20,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:36:20,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:20,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 23:36:20,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:20,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:36:20,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:20,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:36:20,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:20,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 23:36:20,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:20,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-08-21 23:36:20,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:20,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-21 23:36:20,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:20,827 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-21 23:36:20,827 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2092949553] [2020-08-21 23:36:20,827 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:36:20,827 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-21 23:36:20,828 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552166693] [2020-08-21 23:36:20,829 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-21 23:36:20,830 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:36:20,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-21 23:36:20,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-08-21 23:36:20,830 INFO L87 Difference]: Start difference. First operand 379 states and 433 transitions. Second operand 12 states. [2020-08-21 23:36:21,340 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 23:36:21,572 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 23:36:21,802 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 23:36:22,475 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 23:36:22,751 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 23:36:23,001 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 23:36:24,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:36:24,179 INFO L93 Difference]: Finished difference Result 845 states and 1062 transitions. [2020-08-21 23:36:24,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-21 23:36:24,180 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 103 [2020-08-21 23:36:24,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:36:24,188 INFO L225 Difference]: With dead ends: 845 [2020-08-21 23:36:24,188 INFO L226 Difference]: Without dead ends: 494 [2020-08-21 23:36:24,190 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2020-08-21 23:36:24,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2020-08-21 23:36:24,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 387. [2020-08-21 23:36:24,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 387 states. [2020-08-21 23:36:24,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 441 transitions. [2020-08-21 23:36:24,283 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 441 transitions. Word has length 103 [2020-08-21 23:36:24,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:36:24,284 INFO L479 AbstractCegarLoop]: Abstraction has 387 states and 441 transitions. [2020-08-21 23:36:24,284 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-21 23:36:24,284 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 441 transitions. [2020-08-21 23:36:24,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-08-21 23:36:24,288 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:36:24,288 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:36:24,288 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-21 23:36:24,288 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:36:24,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:36:24,289 INFO L82 PathProgramCache]: Analyzing trace with hash 549099304, now seen corresponding path program 1 times [2020-08-21 23:36:24,289 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:36:24,289 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [920580797] [2020-08-21 23:36:24,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:36:24,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:24,609 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 23:36:24,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:36:24,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:24,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 23:36:24,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:24,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 23:36:24,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:24,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 23:36:24,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:24,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 23:36:24,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:24,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 23:36:24,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:24,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-21 23:36:24,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:24,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-21 23:36:24,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:24,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:36:24,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:24,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:36:24,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:24,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:36:24,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:24,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 23:36:24,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:24,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:36:24,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:24,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:36:24,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:24,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 23:36:24,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:24,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-08-21 23:36:24,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:24,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-21 23:36:24,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:24,754 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-21 23:36:24,754 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [920580797] [2020-08-21 23:36:24,755 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:36:24,755 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-21 23:36:24,755 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075713154] [2020-08-21 23:36:24,756 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 23:36:24,756 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:36:24,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 23:36:24,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-21 23:36:24,757 INFO L87 Difference]: Start difference. First operand 387 states and 441 transitions. Second operand 8 states. [2020-08-21 23:36:25,156 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 23:36:25,652 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 23:36:27,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:36:27,835 INFO L93 Difference]: Finished difference Result 1164 states and 1513 transitions. [2020-08-21 23:36:27,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-21 23:36:27,836 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 103 [2020-08-21 23:36:27,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:36:27,841 INFO L225 Difference]: With dead ends: 1164 [2020-08-21 23:36:27,841 INFO L226 Difference]: Without dead ends: 805 [2020-08-21 23:36:27,843 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 42 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=134, Invalid=372, Unknown=0, NotChecked=0, Total=506 [2020-08-21 23:36:27,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 805 states. [2020-08-21 23:36:27,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 805 to 673. [2020-08-21 23:36:27,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 673 states. [2020-08-21 23:36:27,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 795 transitions. [2020-08-21 23:36:27,969 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 795 transitions. Word has length 103 [2020-08-21 23:36:27,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:36:27,970 INFO L479 AbstractCegarLoop]: Abstraction has 673 states and 795 transitions. [2020-08-21 23:36:27,970 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 23:36:27,971 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 795 transitions. [2020-08-21 23:36:27,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-08-21 23:36:27,973 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:36:27,973 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:36:27,973 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-21 23:36:27,974 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:36:27,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:36:27,974 INFO L82 PathProgramCache]: Analyzing trace with hash 290063790, now seen corresponding path program 1 times [2020-08-21 23:36:27,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:36:27,974 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1047462398] [2020-08-21 23:36:27,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:36:28,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:28,269 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 23:36:28,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:36:28,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:28,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 23:36:28,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:28,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 23:36:28,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:28,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 23:36:28,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:28,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 23:36:28,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:28,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 23:36:28,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:28,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 23:36:28,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:28,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-21 23:36:28,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:28,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-21 23:36:28,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:28,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:36:28,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:28,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:36:28,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:28,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:36:28,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:28,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 23:36:28,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:28,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:36:28,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:28,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:36:28,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:28,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 23:36:28,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:28,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-21 23:36:28,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:28,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-21 23:36:28,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:28,508 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-21 23:36:28,508 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1047462398] [2020-08-21 23:36:28,508 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 23:36:28,509 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-08-21 23:36:28,509 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152888252] [2020-08-21 23:36:28,510 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-08-21 23:36:28,510 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:36:28,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-08-21 23:36:28,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2020-08-21 23:36:28,511 INFO L87 Difference]: Start difference. First operand 673 states and 795 transitions. Second operand 18 states. [2020-08-21 23:36:29,008 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 23:36:29,316 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-21 23:36:29,561 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-21 23:36:29,799 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-21 23:36:30,409 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 23:36:31,319 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 23:36:31,645 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 23:36:31,917 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 23:36:32,210 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 23:36:32,535 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 23:36:32,808 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 23:36:33,389 WARN L193 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2020-08-21 23:36:33,931 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2020-08-21 23:36:35,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:36:35,690 INFO L93 Difference]: Finished difference Result 1422 states and 1767 transitions. [2020-08-21 23:36:35,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-08-21 23:36:35,691 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 107 [2020-08-21 23:36:35,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:36:35,697 INFO L225 Difference]: With dead ends: 1422 [2020-08-21 23:36:35,697 INFO L226 Difference]: Without dead ends: 777 [2020-08-21 23:36:35,699 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 696 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=503, Invalid=2149, Unknown=0, NotChecked=0, Total=2652 [2020-08-21 23:36:35,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2020-08-21 23:36:35,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 654. [2020-08-21 23:36:35,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 654 states. [2020-08-21 23:36:35,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 763 transitions. [2020-08-21 23:36:35,829 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 763 transitions. Word has length 107 [2020-08-21 23:36:35,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:36:35,830 INFO L479 AbstractCegarLoop]: Abstraction has 654 states and 763 transitions. [2020-08-21 23:36:35,830 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-08-21 23:36:35,830 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 763 transitions. [2020-08-21 23:36:35,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-08-21 23:36:35,833 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:36:35,833 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:36:35,833 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-21 23:36:35,834 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:36:35,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:36:35,834 INFO L82 PathProgramCache]: Analyzing trace with hash 1933824326, now seen corresponding path program 1 times [2020-08-21 23:36:35,834 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:36:35,834 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [807320485] [2020-08-21 23:36:35,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:36:35,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:36,137 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 23:36:36,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:36:36,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:36,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 23:36:36,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:36,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 23:36:36,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:36,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 23:36:36,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:36,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 23:36:36,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:36,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 23:36:36,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:36,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 23:36:36,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:36,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-21 23:36:36,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:36,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:36:36,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:36,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:36:36,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:36,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:36:36,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:36,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:36:36,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:36,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 23:36:36,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:36,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:36:36,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:36,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:36:36,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:36,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 23:36:36,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:36,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-21 23:36:36,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:36,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:36:36,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:36,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-21 23:36:36,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:36,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-08-21 23:36:36,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:36,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-08-21 23:36:36,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:36,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:36:36,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:36,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:36:36,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:36,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-21 23:36:36,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:36,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:36:36,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:36,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-08-21 23:36:36,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:36,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-08-21 23:36:36,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:36:36,559 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-08-21 23:36:36,563 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [807320485] [2020-08-21 23:36:36,563 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 23:36:36,563 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-08-21 23:36:36,564 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838570791] [2020-08-21 23:36:36,564 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-08-21 23:36:36,565 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:36:36,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-08-21 23:36:36,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2020-08-21 23:36:36,566 INFO L87 Difference]: Start difference. First operand 654 states and 763 transitions. Second operand 19 states. [2020-08-21 23:36:37,436 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 23:36:37,774 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-21 23:36:38,051 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-21 23:36:38,309 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-21 23:36:39,004 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 23:36:39,918 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 23:36:40,236 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 23:36:40,498 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 23:36:40,765 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 23:36:41,107 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 23:36:41,391 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 23:36:42,617 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 23:36:42,877 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 23:36:43,169 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 23:36:43,427 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 23:36:44,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:36:44,392 INFO L93 Difference]: Finished difference Result 1213 states and 1509 transitions. [2020-08-21 23:36:44,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-08-21 23:36:44,392 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 158 [2020-08-21 23:36:44,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:36:44,393 INFO L225 Difference]: With dead ends: 1213 [2020-08-21 23:36:44,393 INFO L226 Difference]: Without dead ends: 0 [2020-08-21 23:36:44,397 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 744 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=510, Invalid=2352, Unknown=0, NotChecked=0, Total=2862 [2020-08-21 23:36:44,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-21 23:36:44,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-21 23:36:44,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-21 23:36:44,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-21 23:36:44,398 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 158 [2020-08-21 23:36:44,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:36:44,398 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-21 23:36:44,398 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-08-21 23:36:44,398 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-21 23:36:44,398 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-21 23:36:44,398 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-21 23:36:44,400 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-21 23:36:45,185 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 32 [2020-08-21 23:36:45,344 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 206 [2020-08-21 23:36:45,571 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 32 [2020-08-21 23:36:45,889 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 206 [2020-08-21 23:36:47,207 WARN L193 SmtUtils]: Spent 955.00 ms on a formula simplification. DAG size of input: 300 DAG size of output: 261 [2020-08-21 23:36:48,711 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 203 [2020-08-21 23:36:48,846 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 202 [2020-08-21 23:36:49,887 WARN L193 SmtUtils]: Spent 572.00 ms on a formula simplification. DAG size of input: 326 DAG size of output: 274 [2020-08-21 23:36:50,466 WARN L193 SmtUtils]: Spent 528.00 ms on a formula simplification. DAG size of input: 310 DAG size of output: 270 [2020-08-21 23:36:51,453 WARN L193 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 300 DAG size of output: 261 [2020-08-21 23:36:51,766 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 18 [2020-08-21 23:36:52,281 WARN L193 SmtUtils]: Spent 510.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 16 [2020-08-21 23:36:52,463 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 1 [2020-08-21 23:36:52,634 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 25 [2020-08-21 23:36:52,816 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 25 [2020-08-21 23:36:53,608 WARN L193 SmtUtils]: Spent 786.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 32 [2020-08-21 23:36:53,769 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 1 [2020-08-21 23:36:53,970 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 19 [2020-08-21 23:36:54,717 WARN L193 SmtUtils]: Spent 742.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 25 [2020-08-21 23:36:54,916 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 22 [2020-08-21 23:36:55,464 WARN L193 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 22