/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=WIDEST --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 [2020-08-21 22:05:04,976 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 22:05:04,979 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 22:05:05,016 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 22:05:05,017 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 22:05:05,025 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 22:05:05,028 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 22:05:05,031 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 22:05:05,034 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 22:05:05,037 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 22:05:05,037 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 22:05:05,038 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 22:05:05,038 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 22:05:05,041 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 22:05:05,043 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 22:05:05,045 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 22:05:05,046 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 22:05:05,047 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 22:05:05,048 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 22:05:05,057 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 22:05:05,059 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 22:05:05,060 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 22:05:05,061 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 22:05:05,062 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 22:05:05,074 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 22:05:05,074 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 22:05:05,074 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 22:05:05,078 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 22:05:05,079 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 22:05:05,079 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 22:05:05,080 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 22:05:05,085 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 22:05:05,085 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 22:05:05,086 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 22:05:05,087 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 22:05:05,087 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 22:05:05,088 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 22:05:05,088 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 22:05:05,088 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 22:05:05,089 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 22:05:05,089 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 22:05:05,090 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-21 22:05:05,111 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 22:05:05,111 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 22:05:05,112 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 22:05:05,112 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 22:05:05,113 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 22:05:05,113 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 22:05:05,113 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 22:05:05,113 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 22:05:05,113 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 22:05:05,114 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 22:05:05,114 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 22:05:05,114 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 22:05:05,114 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 22:05:05,114 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 22:05:05,114 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 22:05:05,115 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 22:05:05,115 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 22:05:05,115 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 22:05:05,115 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 22:05:05,115 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 22:05:05,116 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 22:05:05,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 22:05:05,116 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 22:05:05,116 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 22:05:05,117 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 22:05:05,117 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 22:05:05,117 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 22:05:05,117 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 22:05:05,117 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 22:05:05,117 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=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; [2020-08-21 22:05:05,394 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 22:05:05,413 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 22:05:05,418 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 22:05:05,420 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 22:05:05,420 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 22:05:05,421 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product36.cil.c [2020-08-21 22:05:05,496 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6181f2529/074a3d79a43348dd84903ffe51451809/FLAG8c75af6c0 [2020-08-21 22:05:06,076 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 22:05:06,076 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product36.cil.c [2020-08-21 22:05:06,089 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6181f2529/074a3d79a43348dd84903ffe51451809/FLAG8c75af6c0 [2020-08-21 22:05:06,340 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6181f2529/074a3d79a43348dd84903ffe51451809 [2020-08-21 22:05:06,348 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 22:05:06,350 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 22:05:06,353 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 22:05:06,353 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 22:05:06,357 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 22:05:06,358 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 10:05:06" (1/1) ... [2020-08-21 22:05:06,361 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30847a1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:05:06, skipping insertion in model container [2020-08-21 22:05:06,361 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 10:05:06" (1/1) ... [2020-08-21 22:05:06,369 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 22:05:06,426 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 22:05:06,789 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 22:05:06,802 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 22:05:06,898 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 22:05:06,940 INFO L208 MainTranslator]: Completed translation [2020-08-21 22:05:06,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:05:06 WrapperNode [2020-08-21 22:05:06,941 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 22:05:06,942 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 22:05:06,942 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 22:05:06,942 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 22:05:06,957 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:05:06" (1/1) ... [2020-08-21 22:05:06,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:05:06" (1/1) ... [2020-08-21 22:05:07,001 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:05:06" (1/1) ... [2020-08-21 22:05:07,001 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:05:06" (1/1) ... [2020-08-21 22:05:07,042 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:05:06" (1/1) ... [2020-08-21 22:05:07,055 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:05:06" (1/1) ... [2020-08-21 22:05:07,061 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:05:06" (1/1) ... [2020-08-21 22:05:07,068 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 22:05:07,069 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 22:05:07,069 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 22:05:07,069 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 22:05:07,070 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:05:06" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 22:05:07,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 22:05:07,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 22:05:07,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-21 22:05:07,132 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-21 22:05:07,132 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-21 22:05:07,133 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-21 22:05:07,133 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-21 22:05:07,133 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-21 22:05:07,133 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-21 22:05:07,133 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-21 22:05:07,133 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-21 22:05:07,134 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-21 22:05:07,134 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-21 22:05:07,134 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-21 22:05:07,134 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-21 22:05:07,134 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-21 22:05:07,134 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-21 22:05:07,134 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-21 22:05:07,135 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-08-21 22:05:07,135 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-21 22:05:07,135 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-21 22:05:07,135 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-21 22:05:07,135 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-21 22:05:07,135 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-21 22:05:07,136 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-21 22:05:07,136 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-21 22:05:07,136 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-21 22:05:07,136 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-21 22:05:07,136 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-21 22:05:07,136 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-21 22:05:07,137 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 22:05:07,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-08-21 22:05:07,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-08-21 22:05:07,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-08-21 22:05:07,137 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-21 22:05:07,137 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-21 22:05:07,137 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-21 22:05:07,138 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-21 22:05:07,138 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-21 22:05:07,138 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-21 22:05:07,138 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-21 22:05:07,138 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 22:05:07,138 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 22:05:07,139 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-21 22:05:07,139 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-21 22:05:07,139 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-21 22:05:07,139 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-21 22:05:07,139 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-21 22:05:07,139 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-21 22:05:07,139 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-21 22:05:07,140 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-21 22:05:07,140 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-21 22:05:07,140 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-21 22:05:07,140 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-21 22:05:07,140 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-21 22:05:07,140 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-21 22:05:07,141 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-21 22:05:07,141 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-21 22:05:07,141 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-21 22:05:07,141 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-08-21 22:05:07,141 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-08-21 22:05:07,141 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-08-21 22:05:07,141 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-21 22:05:07,142 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-21 22:05:07,142 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-21 22:05:07,142 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-21 22:05:07,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-21 22:05:07,142 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-21 22:05:07,142 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-21 22:05:07,143 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-21 22:05:07,143 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-21 22:05:07,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-21 22:05:07,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-21 22:05:07,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-21 22:05:07,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-21 22:05:07,143 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-21 22:05:07,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-21 22:05:07,144 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-21 22:05:07,144 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-21 22:05:07,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-21 22:05:07,144 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-21 22:05:07,144 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-21 22:05:07,144 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-21 22:05:07,145 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-21 22:05:07,145 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-21 22:05:07,145 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-21 22:05:07,145 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-21 22:05:07,145 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-21 22:05:07,145 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-21 22:05:07,146 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-08-21 22:05:07,146 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-21 22:05:07,146 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 22:05:07,146 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-21 22:05:07,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 22:05:07,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-21 22:05:07,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 22:05:08,139 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 22:05:08,140 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-21 22:05:08,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 10:05:08 BoogieIcfgContainer [2020-08-21 22:05:08,145 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 22:05:08,146 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 22:05:08,146 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 22:05:08,150 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 22:05:08,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 10:05:06" (1/3) ... [2020-08-21 22:05:08,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66cd8b40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 10:05:08, skipping insertion in model container [2020-08-21 22:05:08,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:05:06" (2/3) ... [2020-08-21 22:05:08,152 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66cd8b40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 10:05:08, skipping insertion in model container [2020-08-21 22:05:08,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 10:05:08" (3/3) ... [2020-08-21 22:05:08,154 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product36.cil.c [2020-08-21 22:05:08,165 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 22:05:08,173 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 22:05:08,188 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 22:05:08,214 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 22:05:08,214 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 22:05:08,214 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 22:05:08,214 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 22:05:08,215 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 22:05:08,215 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 22:05:08,215 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 22:05:08,215 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 22:05:08,238 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states. [2020-08-21 22:05:08,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-08-21 22:05:08,252 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 22:05:08,256 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] [2020-08-21 22:05:08,257 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 22:05:08,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 22:05:08,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1424451371, now seen corresponding path program 1 times [2020-08-21 22:05:08,269 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 22:05:08,270 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1503356628] [2020-08-21 22:05:08,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 22:05:08,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:08,959 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 22:05:08,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:05:08,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:09,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 22:05:09,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:09,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 22:05:09,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:09,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 22:05:09,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:09,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 22:05:09,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:09,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 22:05:09,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:09,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 22:05:09,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:09,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:05:09,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:09,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-21 22:05:09,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:09,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-21 22:05:09,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:09,069 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-21 22:05:09,070 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1503356628] [2020-08-21 22:05:09,072 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 22:05:09,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-21 22:05:09,073 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822104585] [2020-08-21 22:05:09,078 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-21 22:05:09,079 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 22:05:09,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-21 22:05:09,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-21 22:05:09,096 INFO L87 Difference]: Start difference. First operand 171 states. Second operand 4 states. [2020-08-21 22:05:10,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 22:05:10,188 INFO L93 Difference]: Finished difference Result 286 states and 369 transitions. [2020-08-21 22:05:10,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-21 22:05:10,189 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-08-21 22:05:10,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 22:05:10,204 INFO L225 Difference]: With dead ends: 286 [2020-08-21 22:05:10,204 INFO L226 Difference]: Without dead ends: 159 [2020-08-21 22:05:10,209 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 [2020-08-21 22:05:10,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2020-08-21 22:05:10,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 128. [2020-08-21 22:05:10,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-08-21 22:05:10,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 149 transitions. [2020-08-21 22:05:10,307 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 149 transitions. Word has length 59 [2020-08-21 22:05:10,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 22:05:10,309 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 149 transitions. [2020-08-21 22:05:10,309 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-21 22:05:10,309 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 149 transitions. [2020-08-21 22:05:10,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-08-21 22:05:10,319 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 22:05:10,319 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] [2020-08-21 22:05:10,322 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 22:05:10,322 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 22:05:10,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 22:05:10,323 INFO L82 PathProgramCache]: Analyzing trace with hash -1343962066, now seen corresponding path program 1 times [2020-08-21 22:05:10,323 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 22:05:10,324 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [597813188] [2020-08-21 22:05:10,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 22:05:10,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:10,704 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 22:05:10,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:05:10,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:10,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 22:05:10,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:10,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 22:05:10,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:10,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 22:05:10,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:10,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 22:05:10,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:10,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 22:05:10,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:10,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-21 22:05:10,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:10,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:05:10,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:10,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-21 22:05:10,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:10,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-08-21 22:05:10,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:10,769 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-21 22:05:10,769 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [597813188] [2020-08-21 22:05:10,770 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 22:05:10,770 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-21 22:05:10,770 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463109757] [2020-08-21 22:05:10,772 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 22:05:10,772 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 22:05:10,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 22:05:10,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-21 22:05:10,773 INFO L87 Difference]: Start difference. First operand 128 states and 149 transitions. Second operand 5 states. [2020-08-21 22:05:11,193 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 22:05:12,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 22:05:12,029 INFO L93 Difference]: Finished difference Result 218 states and 267 transitions. [2020-08-21 22:05:12,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 22:05:12,035 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2020-08-21 22:05:12,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 22:05:12,038 INFO L225 Difference]: With dead ends: 218 [2020-08-21 22:05:12,038 INFO L226 Difference]: Without dead ends: 149 [2020-08-21 22:05:12,040 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 [2020-08-21 22:05:12,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2020-08-21 22:05:12,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 119. [2020-08-21 22:05:12,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-08-21 22:05:12,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 137 transitions. [2020-08-21 22:05:12,086 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 137 transitions. Word has length 60 [2020-08-21 22:05:12,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 22:05:12,086 INFO L479 AbstractCegarLoop]: Abstraction has 119 states and 137 transitions. [2020-08-21 22:05:12,086 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 22:05:12,087 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 137 transitions. [2020-08-21 22:05:12,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-08-21 22:05:12,089 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 22:05:12,089 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] [2020-08-21 22:05:12,089 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 22:05:12,089 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 22:05:12,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 22:05:12,090 INFO L82 PathProgramCache]: Analyzing trace with hash 1988567769, now seen corresponding path program 1 times [2020-08-21 22:05:12,090 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 22:05:12,090 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [499789921] [2020-08-21 22:05:12,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 22:05:12,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:12,458 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 22:05:12,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:05:12,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:12,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 22:05:12,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:12,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 22:05:12,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:12,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 22:05:12,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:12,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 22:05:12,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:12,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 22:05:12,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:12,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-21 22:05:12,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:12,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:05:12,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:12,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-21 22:05:12,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:12,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-21 22:05:12,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:12,566 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-21 22:05:12,567 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [499789921] [2020-08-21 22:05:12,567 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 22:05:12,568 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-21 22:05:12,568 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15938707] [2020-08-21 22:05:12,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 22:05:12,571 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 22:05:12,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 22:05:12,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-21 22:05:12,572 INFO L87 Difference]: Start difference. First operand 119 states and 137 transitions. Second operand 9 states. [2020-08-21 22:05:13,084 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 22:05:13,411 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 22:05:13,699 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 22:05:13,942 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 22:05:14,882 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 22:05:16,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 22:05:16,087 INFO L93 Difference]: Finished difference Result 402 states and 496 transitions. [2020-08-21 22:05:16,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-21 22:05:16,087 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 65 [2020-08-21 22:05:16,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 22:05:16,096 INFO L225 Difference]: With dead ends: 402 [2020-08-21 22:05:16,097 INFO L226 Difference]: Without dead ends: 311 [2020-08-21 22:05:16,098 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2020-08-21 22:05:16,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2020-08-21 22:05:16,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 242. [2020-08-21 22:05:16,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-08-21 22:05:16,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 290 transitions. [2020-08-21 22:05:16,195 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 290 transitions. Word has length 65 [2020-08-21 22:05:16,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 22:05:16,196 INFO L479 AbstractCegarLoop]: Abstraction has 242 states and 290 transitions. [2020-08-21 22:05:16,196 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 22:05:16,196 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 290 transitions. [2020-08-21 22:05:16,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-08-21 22:05:16,198 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 22:05:16,198 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] [2020-08-21 22:05:16,198 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 22:05:16,199 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 22:05:16,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 22:05:16,199 INFO L82 PathProgramCache]: Analyzing trace with hash 827482166, now seen corresponding path program 1 times [2020-08-21 22:05:16,199 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 22:05:16,199 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [416751948] [2020-08-21 22:05:16,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 22:05:16,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:16,540 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 22:05:16,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:05:16,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:16,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 22:05:16,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:16,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 22:05:16,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:16,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 22:05:16,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:16,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 22:05:16,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:16,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 22:05:16,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:16,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 22:05:16,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:16,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-21 22:05:16,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:16,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:05:16,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:16,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-21 22:05:16,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:16,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-21 22:05:16,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:16,637 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-21 22:05:16,638 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [416751948] [2020-08-21 22:05:16,638 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 22:05:16,638 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-21 22:05:16,638 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052166686] [2020-08-21 22:05:16,639 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 22:05:16,639 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 22:05:16,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 22:05:16,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-21 22:05:16,640 INFO L87 Difference]: Start difference. First operand 242 states and 290 transitions. Second operand 9 states. [2020-08-21 22:05:16,989 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 22:05:17,730 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 22:05:18,490 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 22:05:18,834 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 22:05:19,104 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 22:05:19,354 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 22:05:19,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 22:05:19,958 INFO L93 Difference]: Finished difference Result 631 states and 816 transitions. [2020-08-21 22:05:19,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-21 22:05:19,959 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2020-08-21 22:05:19,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 22:05:19,964 INFO L225 Difference]: With dead ends: 631 [2020-08-21 22:05:19,964 INFO L226 Difference]: Without dead ends: 417 [2020-08-21 22:05:19,966 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-08-21 22:05:19,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2020-08-21 22:05:20,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 353. [2020-08-21 22:05:20,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 353 states. [2020-08-21 22:05:20,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 423 transitions. [2020-08-21 22:05:20,043 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 423 transitions. Word has length 70 [2020-08-21 22:05:20,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 22:05:20,044 INFO L479 AbstractCegarLoop]: Abstraction has 353 states and 423 transitions. [2020-08-21 22:05:20,044 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 22:05:20,044 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 423 transitions. [2020-08-21 22:05:20,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-08-21 22:05:20,046 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 22:05:20,047 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] [2020-08-21 22:05:20,047 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 22:05:20,047 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 22:05:20,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 22:05:20,048 INFO L82 PathProgramCache]: Analyzing trace with hash 361073596, now seen corresponding path program 1 times [2020-08-21 22:05:20,048 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 22:05:20,048 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [164011507] [2020-08-21 22:05:20,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 22:05:20,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:20,310 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 22:05:20,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:05:20,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:20,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 22:05:20,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:20,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 22:05:20,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:20,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 22:05:20,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:20,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 22:05:20,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:20,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 22:05:20,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:20,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-21 22:05:20,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:20,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:05:20,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:20,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-21 22:05:20,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:20,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 22:05:20,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:20,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:05:20,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:20,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 22:05:20,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:20,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-21 22:05:20,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:20,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-08-21 22:05:20,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:20,435 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-21 22:05:20,435 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [164011507] [2020-08-21 22:05:20,435 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 22:05:20,436 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-21 22:05:20,436 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347156622] [2020-08-21 22:05:20,436 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 22:05:20,437 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 22:05:20,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 22:05:20,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-21 22:05:20,437 INFO L87 Difference]: Start difference. First operand 353 states and 423 transitions. Second operand 9 states. [2020-08-21 22:05:20,776 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 22:05:21,819 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 22:05:22,064 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-21 22:05:22,314 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 22:05:22,576 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 22:05:23,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 22:05:23,544 INFO L93 Difference]: Finished difference Result 1112 states and 1489 transitions. [2020-08-21 22:05:23,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-21 22:05:23,550 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 88 [2020-08-21 22:05:23,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 22:05:23,555 INFO L225 Difference]: With dead ends: 1112 [2020-08-21 22:05:23,556 INFO L226 Difference]: Without dead ends: 787 [2020-08-21 22:05:23,558 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2020-08-21 22:05:23,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2020-08-21 22:05:23,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 665. [2020-08-21 22:05:23,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 665 states. [2020-08-21 22:05:23,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 802 transitions. [2020-08-21 22:05:23,688 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 802 transitions. Word has length 88 [2020-08-21 22:05:23,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 22:05:23,688 INFO L479 AbstractCegarLoop]: Abstraction has 665 states and 802 transitions. [2020-08-21 22:05:23,689 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 22:05:23,689 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 802 transitions. [2020-08-21 22:05:23,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-08-21 22:05:23,691 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 22:05:23,691 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] [2020-08-21 22:05:23,691 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 22:05:23,691 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 22:05:23,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 22:05:23,692 INFO L82 PathProgramCache]: Analyzing trace with hash -1750216773, now seen corresponding path program 1 times [2020-08-21 22:05:23,692 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 22:05:23,692 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1901801157] [2020-08-21 22:05:23,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 22:05:23,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:23,928 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 22:05:23,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:05:23,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:23,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 22:05:23,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:23,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 22:05:23,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:23,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 22:05:23,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:23,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 22:05:23,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:23,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 22:05:23,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:23,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-21 22:05:23,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:23,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:05:23,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:23,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-21 22:05:23,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:24,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 22:05:24,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:24,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:05:24,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:24,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 22:05:24,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:24,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-21 22:05:24,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:24,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-08-21 22:05:24,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:24,073 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-21 22:05:24,073 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1901801157] [2020-08-21 22:05:24,074 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 22:05:24,074 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-21 22:05:24,075 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501828164] [2020-08-21 22:05:24,075 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 22:05:24,076 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 22:05:24,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 22:05:24,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-21 22:05:24,077 INFO L87 Difference]: Start difference. First operand 665 states and 802 transitions. Second operand 9 states. [2020-08-21 22:05:25,358 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 22:05:25,612 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-21 22:05:25,888 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 22:05:26,128 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 22:05:26,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 22:05:26,776 INFO L93 Difference]: Finished difference Result 1429 states and 1823 transitions. [2020-08-21 22:05:26,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-21 22:05:26,776 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 88 [2020-08-21 22:05:26,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 22:05:26,784 INFO L225 Difference]: With dead ends: 1429 [2020-08-21 22:05:26,784 INFO L226 Difference]: Without dead ends: 792 [2020-08-21 22:05:26,787 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-08-21 22:05:26,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 792 states. [2020-08-21 22:05:26,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 792 to 685. [2020-08-21 22:05:26,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 685 states. [2020-08-21 22:05:26,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 822 transitions. [2020-08-21 22:05:26,945 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 822 transitions. Word has length 88 [2020-08-21 22:05:26,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 22:05:26,945 INFO L479 AbstractCegarLoop]: Abstraction has 685 states and 822 transitions. [2020-08-21 22:05:26,945 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 22:05:26,946 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 822 transitions. [2020-08-21 22:05:26,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-08-21 22:05:26,949 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 22:05:26,956 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] [2020-08-21 22:05:26,956 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-21 22:05:26,957 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 22:05:26,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 22:05:26,957 INFO L82 PathProgramCache]: Analyzing trace with hash -364013379, now seen corresponding path program 1 times [2020-08-21 22:05:26,957 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 22:05:26,958 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [380966597] [2020-08-21 22:05:26,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 22:05:26,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:27,243 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 22:05:27,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:05:27,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:27,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 22:05:27,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:27,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 22:05:27,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:27,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 22:05:27,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:27,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 22:05:27,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:27,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 22:05:27,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:27,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-21 22:05:27,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:27,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:05:27,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:27,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-21 22:05:27,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:27,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 22:05:27,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:27,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:05:27,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:27,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 22:05:27,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:27,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-21 22:05:27,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:27,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-08-21 22:05:27,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:27,400 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-21 22:05:27,401 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [380966597] [2020-08-21 22:05:27,401 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 22:05:27,401 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-21 22:05:27,401 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328822486] [2020-08-21 22:05:27,402 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-21 22:05:27,402 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 22:05:27,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-21 22:05:27,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-08-21 22:05:27,402 INFO L87 Difference]: Start difference. First operand 685 states and 822 transitions. Second operand 11 states. [2020-08-21 22:05:27,894 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 22:05:28,125 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 22:05:28,352 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 22:05:29,121 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 22:05:29,373 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 22:05:29,614 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 22:05:30,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 22:05:30,292 INFO L93 Difference]: Finished difference Result 1290 states and 1630 transitions. [2020-08-21 22:05:30,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-21 22:05:30,292 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 88 [2020-08-21 22:05:30,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 22:05:30,297 INFO L225 Difference]: With dead ends: 1290 [2020-08-21 22:05:30,297 INFO L226 Difference]: Without dead ends: 633 [2020-08-21 22:05:30,300 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-08-21 22:05:30,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2020-08-21 22:05:30,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 556. [2020-08-21 22:05:30,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2020-08-21 22:05:30,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 650 transitions. [2020-08-21 22:05:30,423 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 650 transitions. Word has length 88 [2020-08-21 22:05:30,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 22:05:30,423 INFO L479 AbstractCegarLoop]: Abstraction has 556 states and 650 transitions. [2020-08-21 22:05:30,424 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-21 22:05:30,424 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 650 transitions. [2020-08-21 22:05:30,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-08-21 22:05:30,427 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 22:05:30,427 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] [2020-08-21 22:05:30,428 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-21 22:05:30,428 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 22:05:30,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 22:05:30,428 INFO L82 PathProgramCache]: Analyzing trace with hash -1797836392, now seen corresponding path program 1 times [2020-08-21 22:05:30,429 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 22:05:30,429 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1930562436] [2020-08-21 22:05:30,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 22:05:30,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:30,879 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 22:05:30,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:05:30,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:30,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 22:05:30,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:30,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 22:05:30,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:30,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 22:05:30,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:30,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 22:05:30,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:30,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 22:05:30,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:30,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 22:05:30,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:31,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-21 22:05:31,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:31,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:05:31,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:31,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-08-21 22:05:31,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:31,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 22:05:31,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:31,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:05:31,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:31,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 22:05:31,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:31,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-08-21 22:05:31,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:31,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-21 22:05:31,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:31,120 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-21 22:05:31,122 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1930562436] [2020-08-21 22:05:31,122 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 22:05:31,123 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-21 22:05:31,123 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926392485] [2020-08-21 22:05:31,125 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-21 22:05:31,125 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 22:05:31,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-21 22:05:31,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-08-21 22:05:31,126 INFO L87 Difference]: Start difference. First operand 556 states and 650 transitions. Second operand 12 states. [2020-08-21 22:05:31,714 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 22:05:32,541 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 22:05:33,364 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 22:05:33,728 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 22:05:33,986 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-21 22:05:34,284 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 22:05:34,557 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 22:05:35,985 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 22:05:36,250 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 22:05:36,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 22:05:36,785 INFO L93 Difference]: Finished difference Result 1629 states and 2065 transitions. [2020-08-21 22:05:36,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-08-21 22:05:36,786 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 92 [2020-08-21 22:05:36,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 22:05:36,795 INFO L225 Difference]: With dead ends: 1629 [2020-08-21 22:05:36,795 INFO L226 Difference]: Without dead ends: 1277 [2020-08-21 22:05:36,798 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 350 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2020-08-21 22:05:36,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1277 states. [2020-08-21 22:05:37,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1277 to 1157. [2020-08-21 22:05:37,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1157 states. [2020-08-21 22:05:37,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1355 transitions. [2020-08-21 22:05:37,037 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1355 transitions. Word has length 92 [2020-08-21 22:05:37,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 22:05:37,040 INFO L479 AbstractCegarLoop]: Abstraction has 1157 states and 1355 transitions. [2020-08-21 22:05:37,040 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-21 22:05:37,040 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1355 transitions. [2020-08-21 22:05:37,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-08-21 22:05:37,045 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 22:05:37,045 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] [2020-08-21 22:05:37,046 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-21 22:05:37,046 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 22:05:37,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 22:05:37,046 INFO L82 PathProgramCache]: Analyzing trace with hash -1966372220, now seen corresponding path program 1 times [2020-08-21 22:05:37,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 22:05:37,047 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1522961998] [2020-08-21 22:05:37,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 22:05:37,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:37,460 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 22:05:37,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:05:37,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:37,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 22:05:37,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:37,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 22:05:37,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:37,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 22:05:37,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:37,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 22:05:37,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:37,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 22:05:37,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:37,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 22:05:37,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:37,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-21 22:05:37,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:37,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:05:37,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:37,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:05:37,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:37,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 22:05:37,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:37,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 22:05:37,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:37,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:05:37,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:37,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 22:05:37,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:37,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-21 22:05:37,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:37,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:05:37,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:37,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-08-21 22:05:37,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:37,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:05:37,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:37,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-08-21 22:05:37,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:37,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-08-21 22:05:37,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:37,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 22:05:37,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:37,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-21 22:05:37,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:37,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-08-21 22:05:37,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:37,753 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 22 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-08-21 22:05:37,754 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1522961998] [2020-08-21 22:05:37,754 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 22:05:37,754 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-21 22:05:37,754 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916342261] [2020-08-21 22:05:37,755 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-21 22:05:37,755 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 22:05:37,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-21 22:05:37,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-08-21 22:05:37,756 INFO L87 Difference]: Start difference. First operand 1157 states and 1355 transitions. Second operand 16 states. [2020-08-21 22:05:38,215 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-21 22:05:38,552 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-08-21 22:05:38,821 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-21 22:05:39,081 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-21 22:05:39,760 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-08-21 22:05:40,144 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-08-21 22:05:40,468 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-21 22:05:40,859 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-08-21 22:05:41,205 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-08-21 22:05:42,176 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 22:05:43,214 WARN L193 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-08-21 22:05:43,758 WARN L193 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 193 [2020-08-21 22:05:44,095 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-21 22:05:44,825 WARN L193 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 194 [2020-08-21 22:05:45,697 WARN L193 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 195 [2020-08-21 22:05:45,927 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 22:05:46,199 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-08-21 22:05:46,461 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-21 22:05:47,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 22:05:47,222 INFO L93 Difference]: Finished difference Result 2376 states and 2878 transitions. [2020-08-21 22:05:47,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2020-08-21 22:05:47,223 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 136 [2020-08-21 22:05:47,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 22:05:47,234 INFO L225 Difference]: With dead ends: 2376 [2020-08-21 22:05:47,234 INFO L226 Difference]: Without dead ends: 1417 [2020-08-21 22:05:47,239 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 825 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=630, Invalid=2562, Unknown=0, NotChecked=0, Total=3192 [2020-08-21 22:05:47,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1417 states. [2020-08-21 22:05:47,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1417 to 1269. [2020-08-21 22:05:47,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1269 states. [2020-08-21 22:05:47,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1269 states to 1269 states and 1463 transitions. [2020-08-21 22:05:47,514 INFO L78 Accepts]: Start accepts. Automaton has 1269 states and 1463 transitions. Word has length 136 [2020-08-21 22:05:47,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 22:05:47,514 INFO L479 AbstractCegarLoop]: Abstraction has 1269 states and 1463 transitions. [2020-08-21 22:05:47,514 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-21 22:05:47,514 INFO L276 IsEmpty]: Start isEmpty. Operand 1269 states and 1463 transitions. [2020-08-21 22:05:47,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-08-21 22:05:47,520 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 22:05:47,520 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] [2020-08-21 22:05:47,520 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-21 22:05:47,520 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 22:05:47,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 22:05:47,521 INFO L82 PathProgramCache]: Analyzing trace with hash -1880321482, now seen corresponding path program 1 times [2020-08-21 22:05:47,521 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 22:05:47,521 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1315332634] [2020-08-21 22:05:47,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 22:05:47,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:47,842 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 22:05:47,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:05:47,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:47,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 22:05:47,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:47,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 22:05:47,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:47,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 22:05:47,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:47,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 22:05:47,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:47,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 22:05:47,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:47,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 22:05:47,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:47,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-21 22:05:47,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:47,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:05:47,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:47,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:05:47,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:47,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 22:05:47,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:47,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 22:05:47,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:47,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:05:47,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:47,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 22:05:47,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:47,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-21 22:05:47,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:47,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:05:47,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:47,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-08-21 22:05:47,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:48,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:05:48,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:48,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:05:48,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:48,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 22:05:48,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:48,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-21 22:05:48,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:48,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 22:05:48,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:48,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 22:05:48,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:48,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:05:48,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:48,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-08-21 22:05:48,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:48,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:05:48,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:48,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:05:48,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:48,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 22:05:48,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:48,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-21 22:05:48,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:48,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 22:05:48,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:48,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 22:05:48,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:48,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:05:48,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:48,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-08-21 22:05:48,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:48,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:05:48,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:48,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-08-21 22:05:48,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:48,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:05:48,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:48,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-08-21 22:05:48,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:48,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 22:05:48,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:48,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:05:48,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:48,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 22:05:48,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:48,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-08-21 22:05:48,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:48,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2020-08-21 22:05:48,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:48,267 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 81 proven. 31 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2020-08-21 22:05:48,268 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1315332634] [2020-08-21 22:05:48,268 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 22:05:48,268 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-21 22:05:48,269 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960423613] [2020-08-21 22:05:48,271 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-21 22:05:48,272 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 22:05:48,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-21 22:05:48,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2020-08-21 22:05:48,273 INFO L87 Difference]: Start difference. First operand 1269 states and 1463 transitions. Second operand 16 states. [2020-08-21 22:05:50,205 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 22:05:50,429 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 22:05:50,700 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-21 22:05:50,950 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-21 22:05:51,190 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 22:05:51,871 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-21 22:05:52,428 WARN L193 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-08-21 22:05:52,948 WARN L193 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-08-21 22:05:53,573 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 22:05:55,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 22:05:55,637 INFO L93 Difference]: Finished difference Result 3631 states and 4392 transitions. [2020-08-21 22:05:55,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-08-21 22:05:55,637 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 244 [2020-08-21 22:05:55,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 22:05:55,651 INFO L225 Difference]: With dead ends: 3631 [2020-08-21 22:05:55,651 INFO L226 Difference]: Without dead ends: 2241 [2020-08-21 22:05:55,656 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 [2020-08-21 22:05:55,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2241 states. [2020-08-21 22:05:56,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2241 to 1858. [2020-08-21 22:05:56,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1858 states. [2020-08-21 22:05:56,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1858 states to 1858 states and 2154 transitions. [2020-08-21 22:05:56,067 INFO L78 Accepts]: Start accepts. Automaton has 1858 states and 2154 transitions. Word has length 244 [2020-08-21 22:05:56,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 22:05:56,069 INFO L479 AbstractCegarLoop]: Abstraction has 1858 states and 2154 transitions. [2020-08-21 22:05:56,069 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-21 22:05:56,070 INFO L276 IsEmpty]: Start isEmpty. Operand 1858 states and 2154 transitions. [2020-08-21 22:05:56,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2020-08-21 22:05:56,077 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 22:05:56,077 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] [2020-08-21 22:05:56,077 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-21 22:05:56,078 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 22:05:56,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 22:05:56,078 INFO L82 PathProgramCache]: Analyzing trace with hash 1137238651, now seen corresponding path program 1 times [2020-08-21 22:05:56,078 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 22:05:56,078 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [512412965] [2020-08-21 22:05:56,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 22:05:56,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:56,380 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 22:05:56,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:05:56,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:56,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 22:05:56,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:56,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 22:05:56,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:56,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 22:05:56,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:56,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 22:05:56,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:56,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 22:05:56,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:56,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 22:05:56,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:56,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-21 22:05:56,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:56,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:05:56,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:56,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:05:56,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:56,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 22:05:56,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:56,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 22:05:56,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:56,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:05:56,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:56,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 22:05:56,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:56,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-21 22:05:56,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:56,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:05:56,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:56,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-08-21 22:05:56,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:56,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:05:56,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:56,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:05:56,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:56,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 22:05:56,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:56,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-21 22:05:56,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:56,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 22:05:56,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:56,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 22:05:56,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:56,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:05:56,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:56,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-21 22:05:56,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:56,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-08-21 22:05:56,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:56,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:05:56,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:56,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:05:56,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:56,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 22:05:56,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:56,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-21 22:05:56,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:56,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 22:05:56,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:56,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 22:05:56,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:56,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:05:56,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:56,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-08-21 22:05:56,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:56,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:05:56,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:56,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-08-21 22:05:56,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:56,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:05:56,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:56,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-08-21 22:05:56,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:56,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 22:05:56,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:56,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:05:56,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:56,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 22:05:56,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:56,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2020-08-21 22:05:56,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:56,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-08-21 22:05:56,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:05:56,695 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 90 proven. 31 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-08-21 22:05:56,696 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [512412965] [2020-08-21 22:05:56,696 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 22:05:56,696 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-08-21 22:05:56,697 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294770450] [2020-08-21 22:05:56,697 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-08-21 22:05:56,697 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 22:05:56,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-08-21 22:05:56,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2020-08-21 22:05:56,698 INFO L87 Difference]: Start difference. First operand 1858 states and 2154 transitions. Second operand 17 states. [2020-08-21 22:05:57,127 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 22:05:57,437 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-21 22:05:57,685 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-21 22:05:57,930 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-21 22:05:58,658 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 22:05:59,574 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 22:05:59,955 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 22:06:00,216 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 22:06:01,043 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 22:06:01,752 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 22:06:02,010 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 22:06:02,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 22:06:02,914 INFO L93 Difference]: Finished difference Result 3499 states and 4139 transitions. [2020-08-21 22:06:02,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-08-21 22:06:02,915 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 250 [2020-08-21 22:06:02,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 22:06:02,927 INFO L225 Difference]: With dead ends: 3499 [2020-08-21 22:06:02,928 INFO L226 Difference]: Without dead ends: 1909 [2020-08-21 22:06:02,933 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=385, Invalid=1507, Unknown=0, NotChecked=0, Total=1892 [2020-08-21 22:06:02,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1909 states. [2020-08-21 22:06:03,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1909 to 1807. [2020-08-21 22:06:03,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1807 states. [2020-08-21 22:06:03,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1807 states to 1807 states and 2067 transitions. [2020-08-21 22:06:03,277 INFO L78 Accepts]: Start accepts. Automaton has 1807 states and 2067 transitions. Word has length 250 [2020-08-21 22:06:03,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 22:06:03,277 INFO L479 AbstractCegarLoop]: Abstraction has 1807 states and 2067 transitions. [2020-08-21 22:06:03,277 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-08-21 22:06:03,278 INFO L276 IsEmpty]: Start isEmpty. Operand 1807 states and 2067 transitions. [2020-08-21 22:06:03,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2020-08-21 22:06:03,284 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 22:06:03,285 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] [2020-08-21 22:06:03,285 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-21 22:06:03,285 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 22:06:03,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 22:06:03,285 INFO L82 PathProgramCache]: Analyzing trace with hash 507686355, now seen corresponding path program 1 times [2020-08-21 22:06:03,285 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 22:06:03,286 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1293760730] [2020-08-21 22:06:03,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 22:06:03,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:06:03,601 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 22:06:03,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:06:03,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:06:03,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 22:06:03,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:06:03,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 22:06:03,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:06:03,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 22:06:03,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:06:03,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 22:06:03,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:06:03,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 22:06:03,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:06:03,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 22:06:03,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:06:03,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-21 22:06:03,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:06:03,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:06:03,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:06:03,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:06:03,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:06:03,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 22:06:03,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:06:03,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 22:06:03,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:06:03,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:06:03,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:06:03,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 22:06:03,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:06:03,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-21 22:06:03,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:06:03,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:06:03,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:06:03,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-08-21 22:06:03,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:06:03,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:06:03,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:06:03,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:06:03,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:06:03,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 22:06:03,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:06:03,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-21 22:06:03,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:06:03,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 22:06:03,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:06:03,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 22:06:03,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:06:03,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:06:03,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:06:03,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-21 22:06:03,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:06:03,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-08-21 22:06:03,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:06:03,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:06:03,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:06:03,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:06:03,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:06:03,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 22:06:03,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:06:03,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-21 22:06:03,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:06:03,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 22:06:03,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:06:03,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 22:06:03,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:06:03,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:06:03,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:06:03,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-08-21 22:06:03,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:06:03,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:06:03,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:06:03,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2020-08-21 22:06:03,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:06:03,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:06:03,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:06:03,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-08-21 22:06:03,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:06:03,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 22:06:03,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:06:03,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 22:06:03,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:06:03,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 22:06:03,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:06:03,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2020-08-21 22:06:03,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:06:03,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2020-08-21 22:06:03,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat