/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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_spec5_product36.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-22 03:45:21,960 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 03:45:21,963 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 03:45:21,992 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 03:45:21,992 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 03:45:21,993 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 03:45:21,995 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 03:45:21,996 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 03:45:21,998 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 03:45:21,999 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 03:45:22,000 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 03:45:22,001 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 03:45:22,001 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 03:45:22,002 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 03:45:22,003 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 03:45:22,004 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 03:45:22,005 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 03:45:22,006 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 03:45:22,008 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 03:45:22,009 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 03:45:22,011 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 03:45:22,012 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 03:45:22,013 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 03:45:22,014 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 03:45:22,016 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 03:45:22,017 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 03:45:22,017 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 03:45:22,018 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 03:45:22,018 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 03:45:22,019 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 03:45:22,019 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 03:45:22,020 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 03:45:22,021 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 03:45:22,021 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 03:45:22,022 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 03:45:22,023 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 03:45:22,023 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 03:45:22,024 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 03:45:22,024 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 03:45:22,025 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 03:45:22,025 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 03:45:22,026 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 [2020-08-22 03:45:22,046 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 03:45:22,047 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 03:45:22,048 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 03:45:22,048 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 03:45:22,048 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 03:45:22,049 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 03:45:22,049 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 03:45:22,049 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 03:45:22,049 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 03:45:22,049 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 03:45:22,049 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 03:45:22,050 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 03:45:22,050 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 03:45:22,050 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 03:45:22,050 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 03:45:22,050 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 03:45:22,051 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 03:45:22,051 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 03:45:22,051 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 03:45:22,051 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 03:45:22,051 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 03:45:22,051 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 03:45:22,052 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 03:45:22,052 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 03:45:22,052 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 03:45:22,052 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 03:45:22,053 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 03:45:22,053 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 03:45:22,053 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 03:45:22,053 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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; [2020-08-22 03:45:22,346 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 03:45:22,364 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 03:45:22,368 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 03:45:22,370 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 03:45:22,371 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 03:45:22,372 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product36.cil.c [2020-08-22 03:45:22,439 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9f97d685d/cf06607286014e549c2a974791357f16/FLAGaf2918d96 [2020-08-22 03:45:22,958 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 03:45:22,958 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product36.cil.c [2020-08-22 03:45:22,973 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9f97d685d/cf06607286014e549c2a974791357f16/FLAGaf2918d96 [2020-08-22 03:45:23,235 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9f97d685d/cf06607286014e549c2a974791357f16 [2020-08-22 03:45:23,243 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 03:45:23,245 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 03:45:23,246 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 03:45:23,246 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 03:45:23,251 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 03:45:23,252 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 03:45:23" (1/1) ... [2020-08-22 03:45:23,255 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2744f3ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:45:23, skipping insertion in model container [2020-08-22 03:45:23,255 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 03:45:23" (1/1) ... [2020-08-22 03:45:23,266 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 03:45:23,339 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 03:45:23,819 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 03:45:23,831 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 03:45:23,931 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 03:45:23,981 INFO L208 MainTranslator]: Completed translation [2020-08-22 03:45:23,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:45:23 WrapperNode [2020-08-22 03:45:23,982 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 03:45:23,983 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 03:45:23,983 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 03:45:23,983 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 03:45:23,997 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:45:23" (1/1) ... [2020-08-22 03:45:23,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:45:23" (1/1) ... [2020-08-22 03:45:24,027 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:45:23" (1/1) ... [2020-08-22 03:45:24,028 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:45:23" (1/1) ... [2020-08-22 03:45:24,057 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:45:23" (1/1) ... [2020-08-22 03:45:24,067 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:45:23" (1/1) ... [2020-08-22 03:45:24,072 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:45:23" (1/1) ... [2020-08-22 03:45:24,080 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 03:45:24,080 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 03:45:24,081 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 03:45:24,081 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 03:45:24,082 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:45:23" (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 [2020-08-22 03:45:24,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 03:45:24,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 03:45:24,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-22 03:45:24,153 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-22 03:45:24,154 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-22 03:45:24,154 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-22 03:45:24,154 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-22 03:45:24,155 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-22 03:45:24,155 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-22 03:45:24,156 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-22 03:45:24,156 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-22 03:45:24,156 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-22 03:45:24,156 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-22 03:45:24,156 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-22 03:45:24,157 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-22 03:45:24,157 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-22 03:45:24,158 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-22 03:45:24,158 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-22 03:45:24,158 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-08-22 03:45:24,158 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-22 03:45:24,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-22 03:45:24,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-22 03:45:24,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-22 03:45:24,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-22 03:45:24,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-22 03:45:24,162 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-22 03:45:24,162 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-22 03:45:24,163 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-22 03:45:24,163 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-22 03:45:24,163 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-22 03:45:24,163 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 03:45:24,163 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-08-22 03:45:24,163 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-08-22 03:45:24,163 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-08-22 03:45:24,164 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-22 03:45:24,164 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-22 03:45:24,164 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-22 03:45:24,164 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-22 03:45:24,164 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-22 03:45:24,164 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-22 03:45:24,164 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-22 03:45:24,165 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 03:45:24,165 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 03:45:24,167 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-22 03:45:24,167 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-22 03:45:24,168 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-22 03:45:24,168 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-22 03:45:24,169 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-22 03:45:24,169 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-22 03:45:24,169 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-22 03:45:24,169 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-22 03:45:24,169 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-22 03:45:24,169 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-22 03:45:24,170 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-22 03:45:24,170 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-22 03:45:24,170 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-22 03:45:24,170 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-22 03:45:24,170 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-22 03:45:24,170 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-22 03:45:24,170 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-08-22 03:45:24,171 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-08-22 03:45:24,171 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-08-22 03:45:24,171 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-22 03:45:24,171 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-22 03:45:24,171 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-22 03:45:24,171 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-22 03:45:24,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 03:45:24,171 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-22 03:45:24,171 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 03:45:24,171 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 03:45:24,172 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-22 03:45:24,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 03:45:24,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 03:45:24,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 03:45:24,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 03:45:24,173 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-22 03:45:24,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 03:45:24,173 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-22 03:45:24,173 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-22 03:45:24,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 03:45:24,173 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-22 03:45:24,174 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-22 03:45:24,174 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-22 03:45:24,174 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-22 03:45:24,174 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-22 03:45:24,174 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-22 03:45:24,174 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-22 03:45:24,174 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-22 03:45:24,174 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-22 03:45:24,174 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-08-22 03:45:24,175 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-22 03:45:24,175 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 03:45:24,175 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-22 03:45:24,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 03:45:24,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 03:45:24,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 03:45:25,178 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 03:45:25,179 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-22 03:45:25,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 03:45:25 BoogieIcfgContainer [2020-08-22 03:45:25,184 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 03:45:25,185 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 03:45:25,185 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 03:45:25,188 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 03:45:25,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 03:45:23" (1/3) ... [2020-08-22 03:45:25,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a604f9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 03:45:25, skipping insertion in model container [2020-08-22 03:45:25,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:45:23" (2/3) ... [2020-08-22 03:45:25,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a604f9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 03:45:25, skipping insertion in model container [2020-08-22 03:45:25,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 03:45:25" (3/3) ... [2020-08-22 03:45:25,192 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product36.cil.c [2020-08-22 03:45:25,214 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 03:45:25,222 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 03:45:25,235 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 03:45:25,258 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 03:45:25,258 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 03:45:25,258 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 03:45:25,258 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 03:45:25,259 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 03:45:25,259 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 03:45:25,259 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 03:45:25,259 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 03:45:25,281 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states. [2020-08-22 03:45:25,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-08-22 03:45:25,292 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:45:25,293 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 03:45:25,294 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:45:25,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:45:25,300 INFO L82 PathProgramCache]: Analyzing trace with hash 1424451371, now seen corresponding path program 1 times [2020-08-22 03:45:25,308 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:45:25,308 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1873691254] [2020-08-22 03:45:25,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:45:25,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:25,955 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 03:45:25,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:45:25,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:26,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 03:45:26,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:26,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 03:45:26,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:26,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 03:45:26,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:26,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 03:45:26,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:26,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 03:45:26,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:26,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 03:45:26,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:26,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:45:26,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:26,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-22 03:45:26,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:26,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 03:45:26,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:26,136 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 03:45:26,137 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1873691254] [2020-08-22 03:45:26,139 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 03:45:26,139 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 03:45:26,140 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016790639] [2020-08-22 03:45:26,147 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 03:45:26,148 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:45:26,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 03:45:26,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-22 03:45:26,167 INFO L87 Difference]: Start difference. First operand 171 states. Second operand 4 states. [2020-08-22 03:45:27,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:45:27,206 INFO L93 Difference]: Finished difference Result 286 states and 369 transitions. [2020-08-22 03:45:27,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-22 03:45:27,208 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-08-22 03:45:27,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:45:27,224 INFO L225 Difference]: With dead ends: 286 [2020-08-22 03:45:27,224 INFO L226 Difference]: Without dead ends: 159 [2020-08-22 03:45:27,230 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-22 03:45:27,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2020-08-22 03:45:27,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 128. [2020-08-22 03:45:27,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-08-22 03:45:27,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 149 transitions. [2020-08-22 03:45:27,326 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 149 transitions. Word has length 59 [2020-08-22 03:45:27,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:45:27,327 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 149 transitions. [2020-08-22 03:45:27,327 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 03:45:27,327 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 149 transitions. [2020-08-22 03:45:27,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-08-22 03:45:27,334 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:45:27,334 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 03:45:27,335 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 03:45:27,335 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:45:27,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:45:27,336 INFO L82 PathProgramCache]: Analyzing trace with hash -1343962066, now seen corresponding path program 1 times [2020-08-22 03:45:27,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:45:27,336 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1921844649] [2020-08-22 03:45:27,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:45:27,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:27,700 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 03:45:27,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:45:27,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:27,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 03:45:27,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:27,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 03:45:27,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:27,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 03:45:27,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:27,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 03:45:27,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:27,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 03:45:27,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:27,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 03:45:27,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:27,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:45:27,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:27,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-22 03:45:27,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:27,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-08-22 03:45:27,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:27,788 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 03:45:27,789 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1921844649] [2020-08-22 03:45:27,790 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 03:45:27,790 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 03:45:27,790 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926520180] [2020-08-22 03:45:27,793 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 03:45:27,793 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:45:27,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 03:45:27,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 03:45:27,794 INFO L87 Difference]: Start difference. First operand 128 states and 149 transitions. Second operand 5 states. [2020-08-22 03:45:28,215 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 03:45:29,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:45:29,073 INFO L93 Difference]: Finished difference Result 218 states and 267 transitions. [2020-08-22 03:45:29,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 03:45:29,073 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2020-08-22 03:45:29,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:45:29,076 INFO L225 Difference]: With dead ends: 218 [2020-08-22 03:45:29,077 INFO L226 Difference]: Without dead ends: 149 [2020-08-22 03:45:29,078 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-22 03:45:29,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2020-08-22 03:45:29,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 119. [2020-08-22 03:45:29,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-08-22 03:45:29,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 137 transitions. [2020-08-22 03:45:29,116 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 137 transitions. Word has length 60 [2020-08-22 03:45:29,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:45:29,117 INFO L479 AbstractCegarLoop]: Abstraction has 119 states and 137 transitions. [2020-08-22 03:45:29,117 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 03:45:29,117 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 137 transitions. [2020-08-22 03:45:29,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-08-22 03:45:29,119 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:45:29,120 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 03:45:29,120 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 03:45:29,120 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:45:29,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:45:29,121 INFO L82 PathProgramCache]: Analyzing trace with hash 1988567769, now seen corresponding path program 1 times [2020-08-22 03:45:29,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:45:29,121 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1900338343] [2020-08-22 03:45:29,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:45:29,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:29,492 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 03:45:29,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:45:29,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:29,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 03:45:29,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:29,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 03:45:29,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:29,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 03:45:29,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:29,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 03:45:29,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:29,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 03:45:29,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:29,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-22 03:45:29,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:29,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:45:29,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:29,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 03:45:29,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:29,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-22 03:45:29,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:29,601 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 03:45:29,601 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1900338343] [2020-08-22 03:45:29,602 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 03:45:29,602 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 03:45:29,602 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368386991] [2020-08-22 03:45:29,603 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 03:45:29,603 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:45:29,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 03:45:29,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-22 03:45:29,604 INFO L87 Difference]: Start difference. First operand 119 states and 137 transitions. Second operand 9 states. [2020-08-22 03:45:30,036 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 03:45:30,335 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 03:45:30,590 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 03:45:30,819 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 03:45:31,697 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 03:45:32,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:45:32,877 INFO L93 Difference]: Finished difference Result 402 states and 496 transitions. [2020-08-22 03:45:32,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-22 03:45:32,878 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 65 [2020-08-22 03:45:32,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:45:32,882 INFO L225 Difference]: With dead ends: 402 [2020-08-22 03:45:32,883 INFO L226 Difference]: Without dead ends: 311 [2020-08-22 03:45:32,884 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2020-08-22 03:45:32,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2020-08-22 03:45:32,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 242. [2020-08-22 03:45:32,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-08-22 03:45:32,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 290 transitions. [2020-08-22 03:45:32,974 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 290 transitions. Word has length 65 [2020-08-22 03:45:32,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:45:32,975 INFO L479 AbstractCegarLoop]: Abstraction has 242 states and 290 transitions. [2020-08-22 03:45:32,975 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 03:45:32,975 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 290 transitions. [2020-08-22 03:45:32,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-08-22 03:45:32,977 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:45:32,978 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 03:45:32,978 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 03:45:32,978 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:45:32,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:45:32,979 INFO L82 PathProgramCache]: Analyzing trace with hash 827482166, now seen corresponding path program 1 times [2020-08-22 03:45:32,979 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:45:32,979 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [38500610] [2020-08-22 03:45:32,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:45:33,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:33,270 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 03:45:33,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:45:33,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:33,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 03:45:33,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:33,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 03:45:33,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:33,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 03:45:33,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:33,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 03:45:33,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:33,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 03:45:33,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:33,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 03:45:33,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:33,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-22 03:45:33,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:33,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:45:33,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:33,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-22 03:45:33,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:33,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-22 03:45:33,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:33,394 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-22 03:45:33,395 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [38500610] [2020-08-22 03:45:33,395 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 03:45:33,395 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 03:45:33,396 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545838800] [2020-08-22 03:45:33,396 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 03:45:33,397 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:45:33,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 03:45:33,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-22 03:45:33,397 INFO L87 Difference]: Start difference. First operand 242 states and 290 transitions. Second operand 9 states. [2020-08-22 03:45:33,747 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 03:45:34,429 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 03:45:35,216 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 03:45:35,542 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 03:45:35,824 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 03:45:36,078 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 03:45:36,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:45:36,665 INFO L93 Difference]: Finished difference Result 631 states and 816 transitions. [2020-08-22 03:45:36,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-22 03:45:36,666 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2020-08-22 03:45:36,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:45:36,672 INFO L225 Difference]: With dead ends: 631 [2020-08-22 03:45:36,672 INFO L226 Difference]: Without dead ends: 417 [2020-08-22 03:45:36,675 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-08-22 03:45:36,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2020-08-22 03:45:36,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 353. [2020-08-22 03:45:36,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 353 states. [2020-08-22 03:45:36,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 423 transitions. [2020-08-22 03:45:36,748 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 423 transitions. Word has length 70 [2020-08-22 03:45:36,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:45:36,749 INFO L479 AbstractCegarLoop]: Abstraction has 353 states and 423 transitions. [2020-08-22 03:45:36,749 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 03:45:36,749 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 423 transitions. [2020-08-22 03:45:36,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-08-22 03:45:36,752 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:45:36,752 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] [2020-08-22 03:45:36,752 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 03:45:36,752 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:45:36,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:45:36,753 INFO L82 PathProgramCache]: Analyzing trace with hash 361073596, now seen corresponding path program 1 times [2020-08-22 03:45:36,753 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:45:36,753 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1697278742] [2020-08-22 03:45:36,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:45:36,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:37,022 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 03:45:37,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:45:37,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:37,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 03:45:37,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:37,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 03:45:37,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:37,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 03:45:37,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:37,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 03:45:37,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:37,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 03:45:37,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:37,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-22 03:45:37,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:37,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:45:37,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:37,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-22 03:45:37,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:37,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:45:37,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:37,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:45:37,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:37,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 03:45:37,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:37,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-22 03:45:37,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:37,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-08-22 03:45:37,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:37,180 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 03:45:37,181 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1697278742] [2020-08-22 03:45:37,181 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 03:45:37,181 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 03:45:37,181 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5778803] [2020-08-22 03:45:37,183 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 03:45:37,183 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:45:37,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 03:45:37,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-22 03:45:37,184 INFO L87 Difference]: Start difference. First operand 353 states and 423 transitions. Second operand 9 states. [2020-08-22 03:45:37,486 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 03:45:38,545 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 03:45:38,797 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 03:45:39,064 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 03:45:39,344 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 03:45:40,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:45:40,310 INFO L93 Difference]: Finished difference Result 1112 states and 1489 transitions. [2020-08-22 03:45:40,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-22 03:45:40,313 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 88 [2020-08-22 03:45:40,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:45:40,319 INFO L225 Difference]: With dead ends: 1112 [2020-08-22 03:45:40,319 INFO L226 Difference]: Without dead ends: 787 [2020-08-22 03:45:40,321 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2020-08-22 03:45:40,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2020-08-22 03:45:40,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 665. [2020-08-22 03:45:40,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 665 states. [2020-08-22 03:45:40,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 802 transitions. [2020-08-22 03:45:40,442 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 802 transitions. Word has length 88 [2020-08-22 03:45:40,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:45:40,442 INFO L479 AbstractCegarLoop]: Abstraction has 665 states and 802 transitions. [2020-08-22 03:45:40,442 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 03:45:40,443 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 802 transitions. [2020-08-22 03:45:40,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-08-22 03:45:40,445 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:45:40,445 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] [2020-08-22 03:45:40,446 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 03:45:40,446 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:45:40,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:45:40,446 INFO L82 PathProgramCache]: Analyzing trace with hash -1750216773, now seen corresponding path program 1 times [2020-08-22 03:45:40,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:45:40,447 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [613585467] [2020-08-22 03:45:40,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:45:40,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:40,742 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 03:45:40,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:45:40,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:40,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 03:45:40,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:40,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 03:45:40,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:40,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 03:45:40,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:40,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 03:45:40,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:40,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 03:45:40,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:40,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-22 03:45:40,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:40,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:45:40,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:40,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-22 03:45:40,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:40,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:45:40,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:40,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:45:40,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:40,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 03:45:40,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:40,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-22 03:45:40,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:40,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-08-22 03:45:40,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:40,857 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 03:45:40,858 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [613585467] [2020-08-22 03:45:40,858 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 03:45:40,858 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 03:45:40,858 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117668413] [2020-08-22 03:45:40,859 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 03:45:40,859 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:45:40,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 03:45:40,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-22 03:45:40,860 INFO L87 Difference]: Start difference. First operand 665 states and 802 transitions. Second operand 9 states. [2020-08-22 03:45:41,835 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 03:45:42,097 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 03:45:42,371 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 03:45:42,629 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 03:45:43,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:45:43,167 INFO L93 Difference]: Finished difference Result 1429 states and 1823 transitions. [2020-08-22 03:45:43,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-22 03:45:43,168 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 88 [2020-08-22 03:45:43,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:45:43,176 INFO L225 Difference]: With dead ends: 1429 [2020-08-22 03:45:43,176 INFO L226 Difference]: Without dead ends: 792 [2020-08-22 03:45:43,179 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-08-22 03:45:43,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 792 states. [2020-08-22 03:45:43,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 792 to 685. [2020-08-22 03:45:43,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 685 states. [2020-08-22 03:45:43,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 822 transitions. [2020-08-22 03:45:43,351 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 822 transitions. Word has length 88 [2020-08-22 03:45:43,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:45:43,352 INFO L479 AbstractCegarLoop]: Abstraction has 685 states and 822 transitions. [2020-08-22 03:45:43,352 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 03:45:43,352 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 822 transitions. [2020-08-22 03:45:43,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-08-22 03:45:43,357 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:45:43,357 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] [2020-08-22 03:45:43,357 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 03:45:43,358 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:45:43,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:45:43,358 INFO L82 PathProgramCache]: Analyzing trace with hash -364013379, now seen corresponding path program 1 times [2020-08-22 03:45:43,359 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:45:43,360 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [412359889] [2020-08-22 03:45:43,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:45:43,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:43,630 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 03:45:43,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:45:43,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:43,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 03:45:43,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:43,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 03:45:43,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:43,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 03:45:43,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:43,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 03:45:43,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:43,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 03:45:43,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:43,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-22 03:45:43,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:43,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:45:43,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:43,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-22 03:45:43,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:43,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:45:43,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:43,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:45:43,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:43,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 03:45:43,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:43,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-22 03:45:43,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:43,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-08-22 03:45:43,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:43,776 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 03:45:43,777 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [412359889] [2020-08-22 03:45:43,777 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 03:45:43,777 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-22 03:45:43,781 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753266925] [2020-08-22 03:45:43,782 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-22 03:45:43,783 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:45:43,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-22 03:45:43,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-08-22 03:45:43,783 INFO L87 Difference]: Start difference. First operand 685 states and 822 transitions. Second operand 11 states. [2020-08-22 03:45:44,236 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 03:45:44,468 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 03:45:44,692 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 03:45:45,425 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 03:45:45,693 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 03:45:45,946 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 03:45:46,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:45:46,538 INFO L93 Difference]: Finished difference Result 1290 states and 1630 transitions. [2020-08-22 03:45:46,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-22 03:45:46,539 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 88 [2020-08-22 03:45:46,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:45:46,543 INFO L225 Difference]: With dead ends: 1290 [2020-08-22 03:45:46,543 INFO L226 Difference]: Without dead ends: 633 [2020-08-22 03:45:46,546 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-08-22 03:45:46,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2020-08-22 03:45:46,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 556. [2020-08-22 03:45:46,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2020-08-22 03:45:46,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 650 transitions. [2020-08-22 03:45:46,645 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 650 transitions. Word has length 88 [2020-08-22 03:45:46,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:45:46,645 INFO L479 AbstractCegarLoop]: Abstraction has 556 states and 650 transitions. [2020-08-22 03:45:46,645 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-22 03:45:46,645 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 650 transitions. [2020-08-22 03:45:46,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-08-22 03:45:46,647 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:45:46,647 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 03:45:46,648 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-22 03:45:46,648 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:45:46,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:45:46,648 INFO L82 PathProgramCache]: Analyzing trace with hash -1797836392, now seen corresponding path program 1 times [2020-08-22 03:45:46,648 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:45:46,649 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [442952796] [2020-08-22 03:45:46,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:45:46,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:47,113 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 03:45:47,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:45:47,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:47,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 03:45:47,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:47,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 03:45:47,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:47,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 03:45:47,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:47,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 03:45:47,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:47,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 03:45:47,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:47,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 03:45:47,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:47,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-22 03:45:47,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:47,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:45:47,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:47,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-08-22 03:45:47,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:47,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:45:47,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:47,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:45:47,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:47,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 03:45:47,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:47,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-08-22 03:45:47,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:47,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 03:45:47,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:47,336 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 03:45:47,337 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [442952796] [2020-08-22 03:45:47,338 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 03:45:47,338 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-22 03:45:47,339 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388220698] [2020-08-22 03:45:47,339 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-22 03:45:47,340 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:45:47,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-22 03:45:47,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-08-22 03:45:47,341 INFO L87 Difference]: Start difference. First operand 556 states and 650 transitions. Second operand 12 states. [2020-08-22 03:45:47,934 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 03:45:48,747 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 03:45:49,477 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 03:45:49,823 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 03:45:50,064 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 03:45:50,347 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 03:45:50,610 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 03:45:52,031 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 03:45:52,319 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 03:45:52,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:45:52,882 INFO L93 Difference]: Finished difference Result 1629 states and 2065 transitions. [2020-08-22 03:45:52,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-08-22 03:45:52,883 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 92 [2020-08-22 03:45:52,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:45:52,890 INFO L225 Difference]: With dead ends: 1629 [2020-08-22 03:45:52,890 INFO L226 Difference]: Without dead ends: 1277 [2020-08-22 03:45:52,892 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 350 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2020-08-22 03:45:52,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1277 states. [2020-08-22 03:45:53,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1277 to 1157. [2020-08-22 03:45:53,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1157 states. [2020-08-22 03:45:53,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1355 transitions. [2020-08-22 03:45:53,090 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1355 transitions. Word has length 92 [2020-08-22 03:45:53,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:45:53,092 INFO L479 AbstractCegarLoop]: Abstraction has 1157 states and 1355 transitions. [2020-08-22 03:45:53,092 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-22 03:45:53,092 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1355 transitions. [2020-08-22 03:45:53,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-08-22 03:45:53,097 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:45:53,097 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 03:45:53,097 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-22 03:45:53,097 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:45:53,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:45:53,098 INFO L82 PathProgramCache]: Analyzing trace with hash -1966372220, now seen corresponding path program 1 times [2020-08-22 03:45:53,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:45:53,098 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2027543792] [2020-08-22 03:45:53,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:45:53,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:53,386 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 03:45:53,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:45:53,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:53,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 03:45:53,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:53,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 03:45:53,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:53,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 03:45:53,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:53,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 03:45:53,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:53,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 03:45:53,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:53,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 03:45:53,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:53,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-22 03:45:53,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:53,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:45:53,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:53,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:45:53,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:53,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 03:45:53,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:53,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:45:53,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:53,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:45:53,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:53,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 03:45:53,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:53,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 03:45:53,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:53,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:45:53,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:53,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-08-22 03:45:53,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:53,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:45:53,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:53,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-08-22 03:45:53,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:53,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-08-22 03:45:53,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:53,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:45:53,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:53,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 03:45:53,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:53,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-08-22 03:45:53,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:45:53,664 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 22 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-08-22 03:45:53,664 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2027543792] [2020-08-22 03:45:53,665 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 03:45:53,665 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-22 03:45:53,665 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823767112] [2020-08-22 03:45:53,665 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-22 03:45:53,666 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:45:53,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-22 03:45:53,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-08-22 03:45:53,666 INFO L87 Difference]: Start difference. First operand 1157 states and 1355 transitions. Second operand 16 states. [2020-08-22 03:45:54,252 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 03:45:54,580 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-08-22 03:45:54,876 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-22 03:45:55,143 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-22 03:45:55,857 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-08-22 03:45:56,250 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-08-22 03:45:56,599 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 03:45:57,006 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-08-22 03:45:57,389 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-08-22 03:45:58,421 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 03:45:59,449 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-08-22 03:45:59,984 WARN L193 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 193 [2020-08-22 03:46:00,296 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 03:46:00,976 WARN L193 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 194 [2020-08-22 03:46:01,887 WARN L193 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 195 [2020-08-22 03:46:02,109 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 03:46:02,382 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-08-22 03:46:02,648 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 03:46:03,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:46:03,422 INFO L93 Difference]: Finished difference Result 2376 states and 2878 transitions. [2020-08-22 03:46:03,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2020-08-22 03:46:03,423 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 136 [2020-08-22 03:46:03,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:46:03,431 INFO L225 Difference]: With dead ends: 2376 [2020-08-22 03:46:03,431 INFO L226 Difference]: Without dead ends: 1417 [2020-08-22 03:46:03,436 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 825 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=630, Invalid=2562, Unknown=0, NotChecked=0, Total=3192 [2020-08-22 03:46:03,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1417 states. [2020-08-22 03:46:03,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1417 to 1269. [2020-08-22 03:46:03,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1269 states. [2020-08-22 03:46:03,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1269 states to 1269 states and 1463 transitions. [2020-08-22 03:46:03,661 INFO L78 Accepts]: Start accepts. Automaton has 1269 states and 1463 transitions. Word has length 136 [2020-08-22 03:46:03,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:46:03,661 INFO L479 AbstractCegarLoop]: Abstraction has 1269 states and 1463 transitions. [2020-08-22 03:46:03,661 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-22 03:46:03,662 INFO L276 IsEmpty]: Start isEmpty. Operand 1269 states and 1463 transitions. [2020-08-22 03:46:03,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-08-22 03:46:03,667 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:46:03,667 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 03:46:03,668 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-22 03:46:03,668 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:46:03,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:46:03,668 INFO L82 PathProgramCache]: Analyzing trace with hash -1880321482, now seen corresponding path program 1 times [2020-08-22 03:46:03,669 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:46:03,669 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1748219595] [2020-08-22 03:46:03,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:46:03,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:04,021 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 03:46:04,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:46:04,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:04,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 03:46:04,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:04,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 03:46:04,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:04,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 03:46:04,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:04,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 03:46:04,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:04,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 03:46:04,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:04,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 03:46:04,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:04,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-22 03:46:04,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:04,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:46:04,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:04,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:46:04,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:04,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 03:46:04,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:04,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:46:04,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:04,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:46:04,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:04,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 03:46:04,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:04,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 03:46:04,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:04,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:46:04,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:04,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-08-22 03:46:04,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:04,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:46:04,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:04,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:46:04,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:04,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 03:46:04,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:04,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 03:46:04,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:04,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:46:04,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:04,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 03:46:04,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:04,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:46:04,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:04,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-08-22 03:46:04,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:04,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:46:04,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:04,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:46:04,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:04,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 03:46:04,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:04,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 03:46:04,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:04,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:46:04,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:04,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 03:46:04,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:04,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:46:04,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:04,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-08-22 03:46:04,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:04,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:46:04,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:04,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-08-22 03:46:04,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:04,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:46:04,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:04,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-08-22 03:46:04,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:04,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:46:04,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:04,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:46:04,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:04,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 03:46:04,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:04,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-08-22 03:46:04,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:04,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2020-08-22 03:46:04,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:04,406 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 81 proven. 31 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2020-08-22 03:46:04,406 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1748219595] [2020-08-22 03:46:04,406 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 03:46:04,407 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-22 03:46:04,407 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553962556] [2020-08-22 03:46:04,408 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-22 03:46:04,408 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:46:04,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-22 03:46:04,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2020-08-22 03:46:04,409 INFO L87 Difference]: Start difference. First operand 1269 states and 1463 transitions. Second operand 16 states. [2020-08-22 03:46:06,232 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 03:46:06,452 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 03:46:06,724 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 03:46:07,001 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 03:46:07,241 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 03:46:07,911 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 03:46:08,439 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-08-22 03:46:08,903 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-08-22 03:46:09,513 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 03:46:11,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:46:11,502 INFO L93 Difference]: Finished difference Result 3631 states and 4392 transitions. [2020-08-22 03:46:11,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-08-22 03:46:11,503 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 244 [2020-08-22 03:46:11,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:46:11,516 INFO L225 Difference]: With dead ends: 3631 [2020-08-22 03:46:11,516 INFO L226 Difference]: Without dead ends: 2241 [2020-08-22 03:46:11,521 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 100 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=449, Invalid=1807, Unknown=0, NotChecked=0, Total=2256 [2020-08-22 03:46:11,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2241 states. [2020-08-22 03:46:11,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2241 to 1858. [2020-08-22 03:46:11,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1858 states. [2020-08-22 03:46:11,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1858 states to 1858 states and 2154 transitions. [2020-08-22 03:46:11,994 INFO L78 Accepts]: Start accepts. Automaton has 1858 states and 2154 transitions. Word has length 244 [2020-08-22 03:46:11,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:46:11,997 INFO L479 AbstractCegarLoop]: Abstraction has 1858 states and 2154 transitions. [2020-08-22 03:46:11,997 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-22 03:46:11,997 INFO L276 IsEmpty]: Start isEmpty. Operand 1858 states and 2154 transitions. [2020-08-22 03:46:12,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2020-08-22 03:46:12,009 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:46:12,010 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 03:46:12,010 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-22 03:46:12,010 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:46:12,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:46:12,011 INFO L82 PathProgramCache]: Analyzing trace with hash 1137238651, now seen corresponding path program 1 times [2020-08-22 03:46:12,011 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:46:12,012 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2072094844] [2020-08-22 03:46:12,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:46:12,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:12,327 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 03:46:12,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:46:12,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:12,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 03:46:12,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:12,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 03:46:12,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:12,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 03:46:12,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:12,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 03:46:12,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:12,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 03:46:12,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:12,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 03:46:12,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:12,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-22 03:46:12,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:12,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:46:12,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:12,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:46:12,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:12,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 03:46:12,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:12,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:46:12,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:12,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:46:12,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:12,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 03:46:12,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:12,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 03:46:12,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:12,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:46:12,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:12,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-08-22 03:46:12,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:12,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:46:12,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:12,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:46:12,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:12,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 03:46:12,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:12,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 03:46:12,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:12,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:46:12,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:12,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 03:46:12,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:12,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:46:12,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:12,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-22 03:46:12,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:12,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-08-22 03:46:12,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:12,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:46:12,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:12,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:46:12,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:12,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 03:46:12,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:12,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 03:46:12,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:12,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:46:12,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:12,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 03:46:12,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:12,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:46:12,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:12,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-08-22 03:46:12,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:12,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:46:12,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:12,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-08-22 03:46:12,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:12,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:46:12,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:12,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-08-22 03:46:12,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:12,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:46:12,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:12,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:46:12,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:12,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 03:46:12,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:12,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2020-08-22 03:46:12,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:12,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-08-22 03:46:12,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:12,686 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 90 proven. 31 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-08-22 03:46:12,686 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2072094844] [2020-08-22 03:46:12,686 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 03:46:12,687 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-08-22 03:46:12,687 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039837065] [2020-08-22 03:46:12,687 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-08-22 03:46:12,688 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:46:12,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-08-22 03:46:12,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2020-08-22 03:46:12,688 INFO L87 Difference]: Start difference. First operand 1858 states and 2154 transitions. Second operand 17 states. [2020-08-22 03:46:13,381 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 03:46:13,733 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 03:46:14,041 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 03:46:14,296 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 03:46:15,062 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 03:46:16,024 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 03:46:16,399 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 03:46:16,666 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 03:46:17,536 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 03:46:18,252 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 03:46:18,513 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 03:46:19,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:46:19,414 INFO L93 Difference]: Finished difference Result 3499 states and 4139 transitions. [2020-08-22 03:46:19,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-08-22 03:46:19,415 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 250 [2020-08-22 03:46:19,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:46:19,428 INFO L225 Difference]: With dead ends: 3499 [2020-08-22 03:46:19,429 INFO L226 Difference]: Without dead ends: 1909 [2020-08-22 03:46:19,435 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=385, Invalid=1507, Unknown=0, NotChecked=0, Total=1892 [2020-08-22 03:46:19,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1909 states. [2020-08-22 03:46:19,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1909 to 1807. [2020-08-22 03:46:19,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1807 states. [2020-08-22 03:46:19,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1807 states to 1807 states and 2067 transitions. [2020-08-22 03:46:19,793 INFO L78 Accepts]: Start accepts. Automaton has 1807 states and 2067 transitions. Word has length 250 [2020-08-22 03:46:19,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:46:19,794 INFO L479 AbstractCegarLoop]: Abstraction has 1807 states and 2067 transitions. [2020-08-22 03:46:19,794 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-08-22 03:46:19,794 INFO L276 IsEmpty]: Start isEmpty. Operand 1807 states and 2067 transitions. [2020-08-22 03:46:19,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2020-08-22 03:46:19,801 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:46:19,801 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 03:46:19,802 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-22 03:46:19,802 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:46:19,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:46:19,802 INFO L82 PathProgramCache]: Analyzing trace with hash 507686355, now seen corresponding path program 1 times [2020-08-22 03:46:19,802 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:46:19,803 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1917882929] [2020-08-22 03:46:19,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:46:19,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:20,083 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 03:46:20,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:46:20,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:20,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 03:46:20,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:20,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 03:46:20,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:20,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 03:46:20,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:20,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 03:46:20,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:20,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 03:46:20,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:20,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 03:46:20,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:20,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-22 03:46:20,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:20,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:46:20,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:20,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:46:20,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:20,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 03:46:20,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:20,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:46:20,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:20,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:46:20,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:20,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 03:46:20,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:20,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 03:46:20,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:20,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:46:20,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:20,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-08-22 03:46:20,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:20,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:46:20,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:20,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:46:20,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:20,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 03:46:20,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:20,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 03:46:20,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:20,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:46:20,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:20,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 03:46:20,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:20,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:46:20,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:20,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-22 03:46:20,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:20,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-08-22 03:46:20,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:20,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:46:20,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:20,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:46:20,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:20,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 03:46:20,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:20,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 03:46:20,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:20,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:46:20,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:20,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 03:46:20,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:20,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:46:20,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:20,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-08-22 03:46:20,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:20,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:46:20,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:20,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2020-08-22 03:46:20,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:20,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:46:20,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:20,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-08-22 03:46:20,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:20,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:46:20,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:20,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:46:20,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:20,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 03:46:20,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:20,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2020-08-22 03:46:20,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:20,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2020-08-22 03:46:20,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:20,483 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 97 proven. 27 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2020-08-22 03:46:20,483 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1917882929] [2020-08-22 03:46:20,483 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 03:46:20,484 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-08-22 03:46:20,484 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522899146] [2020-08-22 03:46:20,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-08-22 03:46:20,485 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:46:20,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-08-22 03:46:20,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2020-08-22 03:46:20,485 INFO L87 Difference]: Start difference. First operand 1807 states and 2067 transitions. Second operand 17 states.